Transcript for:
Psychology Overview

Clive Wearing is an accomplished musician who lost his ability to form new memories when he became sick at the age of 46. While he can remember how to play the piano perfectly, he cannot remember what he ate for breakfast just an hour ago. Saxs 2007. James Waterton experiences a taste sensation that is associated with the sound of words. His former girlfriend's name tastes like rhubarb. Mundisad 2013. John Nash was a brilliant mathematician and Nobel Prize winner. However, while he was a professor at MIT, he would tell people that the New York Times contained coded messages from extraterrestrial beings that were intended for him. He also began to hear voices and became suspicious of the people around him. Soon thereafter, Nash was diagnosed with schizophrenia and admitted to a state-run mental institution, Okconor and Robertson, 2002. Nash was the subject of the 2001 movie A Beautiful Mind. Why did these people have these experiences? How does the human brain work? And what is the connection between the brain's internal processes and people's external behaviors? This textbook will introduce you to various ways that the field of psychology has explored these questions. Sheek indes what are prejudice and discrimination? What is consciousness? The field of psychology explores questions like these. Psychology refers to the scientific study of the mind and behavior. Psychologists use the scientific method to acquire knowledge. To apply the scientific method, a researcher with a question about how or why something happens will propose a tenative explanation called a hypothesis to explain the phenomenon. A hypothesis should fit into the context of a scientific theory, which is a broad explanation or group of explanations for some aspect of the natural world that is consistently supported by evidence over time. A theory is the best understanding we have of that part of the natural world. The researcher then makes observations or carries out an experiment to test the validity of the hypothesis. Those results are then published or presented at research conferences so that others can replicate or build on the results. Scientists test that which is perceivable and measurable. For example, the hypothesis that a bird sings because it is happy is not a hypothesis that can be tested since we have no way to measure the happiness of a bird. We must ask a different question perhaps about the brain state of the bird since this can be measured. However, we can ask individuals about whether they sing because they are happy since they are able to tell us. Thus, psychological science is empirical based on measurable data. In general, science deals only with matter and energy, that is those things that can be measured and it cannot arrive at knowledge about values and morality. This is one reason why our scientific understanding of the mind is so limited since thoughts, at least as we experience them, are neither matter nor energy. The scientific method is also a form of empiricism. An empirical method for acquiring knowledge is one based on observation, including experimentation, rather than a method based only on forms of logical argument or previous authorities. It was not until the late 1800s that psychology became accepted as its own academic discipline. Before this time, the workings of the mind were considered under the opaces of philosophy. Given that any behavior is at its roots biological, some areas of psychology take on aspects of a natural science like biology. No biological organism exists in isolation and our behavior is influenced by our interactions with others. Therefore, psychology is also a social science. Why study psychology? Often students take their first psychology course because they are interested in helping others and want to learn more about themselves and why they act the way they do. Sometimes students take a psychology course because it either satisfies a general education requirement or is required for a program of study such as nursing or premed. Many of these students develop such an interest in the area that they go on to declare psychology as their major. As a result, psychology is one of the most popular majors on college campuses across the United States. Johnson and Luben 2011. A number of well-known individuals were psychology majors. Just a few famous names on this list are Facebook's creator Mark Zuckerberg, television personality and political satist John Stewart, actress Natalie Portman, and filmmaker Wes Craraven Halin 2011. About 6% of all bachelor degrees granted in the United States are in the discipline of psychology, US Department of Education, 2016. An education in psychology is valuable for a number of reasons. Psychology students hone critical thinking skills and are trained in the use of the scientific method. Critical thinking is the active application of a set of skills to information for the understanding and evaluation of that information. The evaluation of information, assessing its reliability and usefulness, is an important skill in a world full of competing facts, many of which are designed to be misleading. For example, critical thinking involves maintaining an attitude of skepticism, recognizing internal biases, making use of logical thinking, asking appropriate questions, and making observations. Psychology students also can develop better communication skills during the course of their undergraduate coursework. American Psychological Association 2011. Together, these factors increase students scientific literacy and prepare students to critically evaluate the various sources of information they encounter. In addition to these broad-based skills, psychology students come to understand the complex factors that shape one's behavior. They appreciate the interaction of our biology, our environment, and our experiences in determining who we are and how we will behave. They learn about basic principles that guide how we think and behave. And they come to recognize the tremendous diversity that exists across individuals and across cultural boundaries. American Psychological Association 2011. Learning objectives. By the end of this section, you will be able to understand the importance of Vunt and James in the development of psychology. Appreciate Freud's influence on psychology. Understand the basic tenets of Gestalt psychology. Appreciate the important role that behaviorism played in psychy's history. Understand basic tenets of humanism. Understand how the cognitive revolution shifted psychologyy's focus back to the mind. Psychology is a relatively young science with its experimental roots in the 19th century compared for example to human physiology which dates much earlier. As mentioned, anyone interested in exploring issues related to the mind generally did so in a philosophical context prior to the 19th century. Two 19th century scholars, Wilhelm W and William James are generally credited as being the founders of psychology as a science and academic discipline that was distinct from philosophy. This section will provide an overview of the shifts in paradigms that have influenced psychology from W and James through today. W and structuralism. Wilhelm Vunt 1832 to 1920 was a German scientist who was the first person to be referred to as a psychologist. His famous book entitled Principles of Physiological Psychology was published in 1873. W viewed psychology as a scientific study of conscious experience and he believed that the goal of psychology was to identify components of consciousness and how those components combined to result in our conscious experience. Once viewed introspection, he called it internal perception. a process by which someone examines their own conscious experience as objectively as possible making the human mind like any other aspect of nature that a scientist observed. He believed in the notion of volunteerism that people have free will and should know the intentions of a psychological experiment if they were participating. Danziger 1980 want considered his version experimental introspection. He used instruments such as those that measured reaction time. He also wrote vulkar psychology in 1904 in which he suggested that psychology should include the study of culture as it involves the study of people. Edward Titner one of his students went on to develop structuralism. Its focus was on the contents of mental processes rather than their function. Pickran and Rutherford 2010. Vont established his psychology laboratory at the university at Leipig in 1879. Figure 1.2. In this laboratory, Bunt and his students conducted experiments on, for example, reaction times. A subject, sometimes in a room isolated from the scientist, would receive a stimulus, such as a light, image, or sound. The subject's reaction to the stimulus would be to push a button, and an apparatus would record the time to reaction. V could measure reaction time to 1,000th of a second. Nicola and Feron 1999. However, despite his efforts to train individuals in the process of introspection, this process remained highly subjective and there was very little agreement between individuals. Functionalism William James, John Dwey, and Charles Sanders Pierce helped establish functional psychology. Figure 1.3. They accepted Darwin's theory of evolution by natural selection and viewed this theory as an explanation of an organism's characteristics. Key to that theory is the idea that natural selection leads to organisms that are adapted to their environment, including their behavior. Adaptation means that a trait of an organism has a function for the survival and reproduction of the individual because it has been naturally selected. As James saw it, psychologyy's purpose was to study the function of behavior in the world. And as such, his perspective was known as functionalism. Functionalism focused on how mental activities helped an organism fit into its environment. Functionalism has a second more subtle meaning in that functionalists were more interested in the operation of the whole mind rather than of its individual parts which were the focus of structuralism. Like won't James believed that introspection could serve as one means by which someone might study mental activities. But James also relied on more objective measures including the use of various recording devices and examinations of concrete products of mental activities and of anatomy and physiology. Gordon 1995 Freud and psychoanalytic theory perhaps one of the most influential and well-known figures in psychologyy's history was Sigman Freud figure 1.4 Freud 1856 to 1939 was an Austrian neurologist who was fascinated by patients suffering from hysteria and neurosis. Hysteria was an ancient diagnosis for disorders, primarily of women with a wide variety of symptoms, including physical symptoms and emotional disturbances, none of which had an apparent physical cause. Freud theorized that many of his patients problems arose from the unconscious mind. In Freud's view, the unconscious mind was a repository of feelings and urges of which we have no awareness. Gaining access to the unconscious then was crucial to the successful resolution of the patients problems. According to Freud, the unconscious mind could be accessed through dream analysis by examinations of the first words that came to people's minds and through seemingly innocent slips of the tongue. Psychoanalytic theory focuses on the role of a person's unconscious as well as early childhood experiences. And this particular perspective dominated clinical psychology for several decades. Thorne and Henley 2005. Freud's ideas were influential and you will learn more about them when you study lifespan development, personality, and therapy. For instance, many therapists believe strongly in the unconscious and the impact of early childhood experiences on the rest of a person's life. The method of psychoanalysis, which involves the patient talking about their experiences and selves, while not invented by Freud, was certainly popularized by him and is still used today. Many of Freud's other ideas, however, are controversial. Drew Weston, 1998, argues that many of the criticisms of Freud's ideas are misplaced in that they attack his older ideas without taking into account later writings. Weston also argues that critics fail to consider the success of the broad ideas that Freud introduced or developed, such as the importance of childhood experiences in adult motivations, the role of unconscious versus conscious motivations in driving our behavior, the fact that motivations can cause conflicts that affect behavior, the effects of mental representations of ourselves and others in guiding our interactions, and the development of personality over time. Wesson identifies subsequent research support for all of these ideas. More modern iterations of Freud's clinical approach have been empirically demonstrated to be effective. Nectall 2008 Shedler 2010. Some current practices in psychotherapy involve examining unconscious aspects of the self and relationships often through the relationship between the therapist and the client. Freud's historical significance and contributions to clinical practice merit his inclusion in a discussion of the historical movements within psychology. Verheimer Kofka Kler and Gestalt psychology. Max Vertimer 1880 to 1943. Kurt Kofka 1886 to 1941. And Wolf Gang Kohler 1887 to 1967 were three German psychologists who immigrated to the United States in the early 20th century to escape Nazi Germany. These scholars are credited with introducing psychologists in the United States to various Gestalt principles. The word gestalt roughly translates to whole. A major emphasis of Gestalt psychology deals with the fact that although a sensory experience can be broken down into individual parts, how those parts relate to each other as a whole is often what the individual responds to in perception. For example, a song may be made up of individual notes played by different instruments, but the real nature of the song is perceived in the combinations of these notes as they form the melody, rhythm, and harmony. In many ways, this particular perspective would have directly contradicted Vince's ideas of structuralism. Thorne and Henley, 2005. Unfortunately, in moving to the United States, these scientists were forced to abandon much of their work and were unable to continue to conduct research on a large scale. These factors along with the rise of behaviorism described next in the United States prevented principles of Gestalt psychology from being as influential in the United States as they had been in their native Germany. Thorne and Henley 2005. Despite these issues, several Gestalt principles are still very influential today. Considering the human individual as a whole rather than as a sum of individually measured parts became an important foundation in humanistic theory late in the century. The ideas of Gestalt have continued to influence research on sensation and perception. Structuralism, Freud, and the Gestalt psychologists were all concerned in one way or another with describing and understanding inner experience. But other researchers had concerns that inner experience could be a legitimate subject of scientific inquiry, and chose instead to exclusively study behavior, the objectively observable outcome of mental processes. Pavlov Watson Skinner and behaviorism. Early work in the field of behavior was conducted by the Russian physiologist Ian Pavlov 1849 to 1936. Pavlov studied a form of learning behavior called a conditioned reflex in which an animal or human produced a reflex unconscious response to a stimulus and over time was conditioned to produce the response to a different stimulus that the experimenttor associated with the original stimulus. The reflex Pavlov worked with was salivation in response to the presence of food. The salivation reflex could be elicited using a second stimulus such as a specific sound that was presented in association with the initial food stimulus several times. Once the response to the second stimulus was learned, the food stimulus could be omitted. Pavlov's classical conditioning is only one form of learning behavior studied by behaviorists. John B. Watson 1878 to 1958 was an influential American psychologist whose most famous work occurred during the early 20th century at Johns Hopkins University figure 1.5. While Woot and James were concerned with understanding conscious experience, Watson thought that the study of consciousness was flawed. Because he believed that objective analysis of the mind was impossible, Watson preferred to focus directly on observable behavior and try to bring that behavior under control. Watson was a major proponent of shifting the focus of psychology from the mind to behavior and this approach of observing and controlling behavior came to be known as behaviorism. A major object of study by behaviorists was learned behavior and its interaction with inborn qualities of the organism. behaviorism commonly used animals in experiments under the assumption that what was learned using animal models could to some degree be applied to human behavior. Indeed, Tolman 1938 stated, "I believe that everything important in psychology except such matters as involve society and words can be investigated in essence through the continued experimental and theoretical analysis of the determiners of rat behavior at a choice point in a maze." Behaviorism dominated experimental psychology for several decades and its influence can still be felt today. Thorne and Henley 2005. Behaviorism is largely responsible for establishing psychology as a scientific discipline through its objective methods and especially experimentation. In addition, it is used in behavioral and cognitive behavioral therapy. Behavior modification is commonly used in classroom settings. Behaviorism has also led to research on environmental influences on human behavior. Beaf Skinner 1904 to 1990 was an American psychologist. Figure 1.6. Like Watson, Skinner was a behaviorist and he concentrated on how behavior was affected by its consequences. Therefore, Skinner spoke of reinforcement and punishment as major factors in driving behavior. As a part of his research, Skinner developed a chamber that allowed the careful study of the principles of modifying behavior through reinforcement and punishment. This device, known as an operant conditioning chamber, or more familiarly, a Skinner box, has remained a crucial resource for researchers studying behavior. Thorne and Henley, 2005. The Skinner box is a chamber that isolates the subject from the external environment and has a behavior indicator such as a lever or a button. When the animal pushes the button or lever, the box is able to deliver a positive reinforcement of the behavior, such as food, or a punishment, such as a noise. Skinner's focus on positive and negative reinforcement of learned behaviors had a lasting influence in psychology that has waned somewhat since the growth of research in cognitive psychology. Despite this, conditioned learning is still used in human behavioral modification. Greengrass 2004, Maslo, Rogers, and humanism. During the early 20th century, American psychology was dominated by behaviorism and psychoanalysis. However, some psychologists were uncomfortable with what they viewed as limited perspectives being so influential to the field. They objected to the pessimism and determinism, all actions driven by the unconscious of Freud. They also disliked the reductionism or simplifying nature of behaviorism. Behaviorism is also deterministic at its core because it sees human behavior as entirely determined by a combination of genetics and environment. Some psychologists began to form their own ideas that emphasize personal control, intentionality, and a true predisposition for good as important for our self-concept and our behavior. Thus, humanism emerged. Humanism is a perspective within psychology that emphasizes the potential for good that is innate to all humans. Two of the most well-known proponents of humanistic psychology are Abraham Maslo and Carl Rogers O'Hara MD. Abraham Maslo 1908 to 1970 was an American psychologist who is best known for proposing a hierarchy of human needs in motivating behavior figure 1.7. Although this concept will be discussed in more detail in a later chapter, a brief overview will be provided here. Maslo asserted that so long as basic needs necessary for survival were met, eg food, water, shelter, higher level needs, eg social needs, would begin to motivate behavior. According to Maslo, the highest level needs relate to self-actualization, a process by which we achieve our full potential. Obviously, the focus on the positive aspects of human nature that are characteristic of the humanistic perspective is evident. Thorne and Henley 2005. Humanistic psychologists rejected on principle the research approach based on reductionist experimentation in the tradition of the physical and biological sciences because it missed the whole human being. Beginning with Maslo and Rogers, there was an insistence on a humanistic research program. This program has been largely qualitative, not measurement based. But there exist a number of quantitative research strains within humanistic psychology including research on happiness, self-concept, meditation, and the outcomes of humanistic psychotherapy. Freriedman 2008. Carl Rogers 1902 to 1987 was also an American psychologist who like Maslo emphasized the potential for good that exists within all people. Figure 1.8. Rogers used a therapeutic technique known as client- centered therapy. in helping his clients deal with problematic issues that resulted in their seeking psychotherapy. Unlike a psychoanalytic approach in which the therapist plays an important role in interpreting what conscious behavior reveals about the unconscious mind, client- centered therapy involves the patient taking a lead role in the therapy session. Rogers believed that a therapist needed to display three features to maximize the effectiveness of this particular approach. Unconditional positive regard, genuiness, and empathy. Unconditional positive regard refers to the fact that the therapist accepts their client for who they are, no matter what they might say. Provided these factors, Rogers believed that people were more than capable of dealing with and working through their own issues. Thorne and Henley, 2005. Humanism has been influential to psychology as a whole. Both Maslo and Rogers are well-known names among students of psychology. You will read more about both later in this text and their ideas have influenced many scholars. Furthermore, Roger's client- centered approach to therapy is still commonly used in psychotherrapeutic settings today. O'Hara ND, the cognitive revolution. Behaviorism's emphasis on objectivity and focus on external behavior had pulled psychologists attention away from the mind for a prolonged period of time. The early work of the humanistic psychologists redirected attention to the individual human as a whole and as a conscious and self-aware being. By the 1950s, new disciplinary perspectives in linguistics, neuroscience, and computer science were emerging, and these areas revived interest in the mind as a focus of scientific inquiry. This particular perspective has come to be known as the cognitive revolution. Miller 2003. By 1967, Olrich Niser published the first textbook entitled Cognitive Psychology, which served as a core text in cognitive psychology courses around the country. Thorne and Henley, 2005. Although no one person is entirely responsible for starting the cognitive revolution, Nam Chomsky was very influential in the early days of this movement. Figure 1.9. Chsky, 1928, an American linguist, was dissatisfied with the influence that behaviorism had had on psychology. He believed that psychologyy's focus on behavior was short-sighted and that the field had to reinccorporate mental functioning into its purview if it were to offer any meaningful contributions to understanding behavior. Miller 2003. European psychology had never really been as influenced by behaviorism as had American psychology and thus the cognitive revolution helped reestablish lines of communication between European psychologists and their American counterparts. Furthermore, psychologists began to cooperate with scientists in other fields like anthropology, linguistics, computer science, and neuroscience among others. This interdisciplinary approach often was referred to as the cognitive sciences and the influence and prominence of this particular perspective resonates in modern-day psychology. Miller 2003. Dig deeper. Feminist psychology. The science of psychology has had an impact on human well-being, both positive and negative. The dominant influence of western white and male academics in the early history of psychology meant that psychology developed with the biases inherent in those individuals which often had negative consequences for members of society who were not white or male. Women members of ethnic minorities in both United States and other countries and individuals with sexual orientations other than straight had difficulties entering the field of psychology and therefore influencing its development. They also suffered from the attitudes of white male psychologists who were not immune to the non-scientific attitudes prevalent in the society in which they developed and worked. Until the 1960s, the science of psychology was largely a womanless psychology. Crawford and Marichek, 1989, meaning that few women were able to practice psychology, so they had little influence on what was studied. In addition, the experimental subjects of psychology were mostly men, which resulted from underlying assumptions that gender had no influence on psychology and that women were not of sufficient interest to study. An article by Naomi Weissstein, first published in 1968, Weissstein, 1993, stimulated a feminist revolution in psychology by presenting a critique of psychology as a science. She also specifically criticized male psychologists for constructing the psychology of women entirely out of their own cultural biases and without careful experimental tests to verify any of their characterizations of women. We used as examples statements by prominent psychologists in the 1960s such as this quote by Brunoheim. We must start with the realization that as much as women want to be good scientists or engineers, they want first and foremost to be womanly companions of men and to be mothers. Wein's critique formed the foundation for the subsequent development of a feminist psychology that attempted to be free of the influence of male cultural biases on our knowledge of the psychology of women. Crawford and Marichek 1989 identify several feminist approaches to psychology that can be described as feminist psychology. These include re-evaluating and discovering the contributions of women to the history of psychology, studying psychological gender differences, and questioning the male bias present across the practice of the scientific approach to knowledge. Multicultural and cross-cultural psychology. Culture impacts individuals, groups, and society. An ongoing issue researchers are trying to correct is that certain populations have been overstudied and the results of these studies have been applied to other populations. For example, Henrik Hine and Norin Zion discuss how weird societies have been overstudied and the results have been wrongly applied to non-weird societies. 2010 weird stands for western, educated, industrialized, rich and democratic. Henrik Hine and Noren found that there are many differences between people in the weird group and people in less industrialized, less urban and non-western societies. These differences occur in a variety of areas including perception, cooperation, and moral reasoning. That is, people vary depending on their culture and environment. Multicultural psychologists develop theories and conduct research with diverse populations, typically within one country. Cross-cultural psychologists compare populations across countries, such as participants from the United States, compared to participants from China. In 1920, Francis Cecil Sumner was the first African-American to receive a PhD in psychology in the United States. Sumner established a psychology degree program at Howard University, leading to the education of a new generation of African-American psychologists, Black Spence, and Omari. 2004. Much of the work of early psychologists from diverse backgrounds was dedicated to challenging intelligence testing and promoting innovative educational methods for children. George the First Sanchez contested such testing with Mexican-American children. As a psychologist of Mexican heritage, he pointed out that the language and cultural barriers in testing were keeping children from equal opportunities. Guthrie 1998. By 1940, he was teaching with his doctoral degree at the University of Texas at Austin and challenging segregated educational practices, Romo 1986. Two famous African-American researchers and psychologists are my Fipps Clark and her husband Kenneth Clark. They are best known for their studies conducted on African-American children and doll preference, research that was instrumental in the Brown versus Board of Education Supreme Court desegregation case. The Clarks applied their research to social services and opened the first child guidance center in Harlem, American Psychological Association 2019. Listen to the podcast below describing the Clark's research and impact on the Supreme Court decision. The American Psychological Association has several ethnically based organizations for professional psychologists that facilitate interactions among members. Some psychologists belonging to specific ethnic groups or cultures are interested in studying their own communities and these organizations provide an opportunity for the growth of research on the interplay between culture and psychology. Women in psychology. Although rarely given credit, women have been contributing to psychology since its inception as a field of study. In 1894, Margaret Floyd Washburn was the first woman awarded the doctoral degree in psychology. She wrote the animal mind, a textbook of comparative psychology, and it was the standard in the field for over 20 years. In the mid 1890s, Mary Whitten Caulkins completed all requirements toward the PhD in psychology, but Harvard University refused to award her that degree because she was a woman. She had been taught and mentored by William James, who tried and failed to convince Harvard to award her the doctoral degree. Her memory research studied primacy and recency, Madigan and O'Hara, 1992. and she also wrote about how structuralism and functionalism both explained self-c psychology calcul 1906. Another influential woman Mary Cover Jones conducted a study she considered to be a sequel to John B. Watson's study of little Albert. You'll learn about this study in the chapter on learning Jones unconditioned fear in little Peter who had been afraid of rabbits. Jones 1924. Ethnic minority women contributing to the field of psychology include Martha Bernal and Inz Beverly Proer. Their studies were related to education. Bernal, the first Latina to earn her doctoral degree in psychology, 1962, conducted much of her research with Mexican-American children. Proer was the first African-American woman awarded the PhD in 1933 at the University of Cincinnati. Benjamin Henry and McMahon 2005. Learning objectives. By the end of this section, you will be able to appreciate the diversity of interests and foi within psychology. Understand basic interests and applications in each of the described areas of psychology. Demonstrate familiarity with some of the major concepts or important figures in each of the described areas of psychology. Contemporary psychology is a diverse field that is influenced by all of the historical perspectives described in the preceding section. Reflective of the discipline's diversity is the diversity seen within the American Psychological Association APA. The APA is a professional organization representing psychologists in the United States. The APA is the largest organization of psychologists in the world and its mission is to advance and disseminate psychological knowledge for the betterment of people. There are 54 divisions within the APA representing a wide variety of specialties that range from societies for the psychology of religion and spirituality to exercise and sports psychology to behavioral neuroscience and comparative psychology. Reflecting the diversity of the field of psychology itself, members, affiliate members, and associate members span the spectrum from students to doctoral level psychologists and come from a variety of places including educational settings, criminal justice, hospitals, the armed forces, and industry. American Psychological Association 2014. G. Stanley Hall was the first president of the APA. Before he earned his doctoral degree, he was an adjunct instructor at Wilburforce University, a historically black college university, H.B.CU. While serving as faculty at Antioch College, Hall went on to work under William James, earning his PhD. Eventually, he became the first president of Clark University in Massachusetts when it was founded. Pickran and Rutherford 2010. The Association for Psychological Science, APS, was founded in 1988 and seeks to advance the scientific orientation of psychology. Its founding resulted from disagreements between members of the scientific and clinical branches of psychology within the APA. The APS publishes five research journals and engages in education and advocacy with funding agencies. A significant proportion of its members are international, although the majority is located in the United States. Other organizations provide networking and collaboration opportunities for professionals of several ethnic or racial groups working in psychology such as the National Latina Osychological Association NLPA, the Asian-American Psychological Association, AAPA, the Association of Black Psychologists, ABSI, and the Society of Indian Psychologists, SIP. Most of these groups are also dedicated to studying psychological and social issues within their specific communities. This section will provide an overview of the major subdivisions within psychology today in the order in which they are introduced throughout the remainder of this textbook. This is not meant to be an exhaustive listing, but it will provide insight into the major areas of research and practice of modern-day psychologists. Biocsychology and evolutionary psychology. As the name suggests, biocsychology explores how our biology influences our behavior. While biological psychology is a broad field, many biological psychologists want to understand how the structure and function of the nervous system is related to behavior. Figure 1.10. As such, they often combine the research strategies of both psychologists and physiologists to accomplish this goal. As discussed in Carlson 2013, the research interests of biological psychologists span a number of domains including but not limited to sensory and motor systems, sleep, drug use and abuse, ingestive behavior, reproductive behavior, neurodedevelopment, plasticity of the nervous system and biological coralates of psychological disorders. Given the broad areas of interest falling under the purview of biological psychology, it will probably come as no surprise that individuals from all sorts of backgrounds are involved in this research, including biologists, medical professionals, physiologists, and chemists. This interdisciplinary approach is often referred to as neuroscience, of which biological psychology is a component. Carlson 2013. While biocsychology typically focuses on the immediate causes of behavior based in the physiology of a human or other animal, evolutionary psychology seeks to study the ultimate biological causes of behavior. To the extent that a behavior is impacted by genetics. A behavior like any anatomical characteristic of a human or animal will demonstrate adaption to its surroundings. These surroundings include the physical environment and since interactions between organisms can be important to survival and reproduction, the social environment. The study of behavior in the context of evolution has its origins with Charles Darwin, the co-discoverer of the theory of evolution by natural selection. Darwin was well aware that behavior should be adaptive and wrote books titled the descent of man 1871 and the expression of the emotions in man and animals 1872 to explore this field. Evolutionary psychology and specifically the evolutionary psychology of humans has enjoyed a resurgence in recent decades. To be subject to evolution by natural selection, a behavior must have a significant genetic cause. In general, we expect all human cultures to express a behavior if it is caused genetically. Since the genetic differences among human groups are small, the approach taken by most evolutionary psychologists is to predict the outcome of a behavior in a particular situation based on evolutionary theory and then to make observations or conduct experiments to determine whether the results match the theory. It is important to recognize that these types of studies are not strong evidence that a behavior is adaptive since they lack information that the behavior is in some part genetic and not entirely cultural. Endler 1986. Demonstrating that a trait, especially in humans, is naturally selected is extraordinarily difficult. Perhaps for this reason, some evolutionary psychologists are content to assume the behaviors they study have genetic determinance. Confer 2010. One other drawback of evolutionary psychology is that the traits that we possess now evolved under environmental and social conditions far back in human history, and we have a poor understanding of what these conditions were. This makes predictions about what is adaptive for a behavior difficult. Behavioral traits need not be adaptive under current conditions only under the conditions of the past when they evolved about which we can only hypothesize. There are many areas of human behavior for which evolution can make predictions. Examples include memory, mate choice, relationships between kin, friendship and cooperation, parenting, social organization and status. Confer at all 2010. Evolutionary psychologists have had success in finding experimental correspondence between observations and expectations. In one example, in a study of mate preference differences between men and women that spanned 37 cultures, bus 1989 found that women valued earning potential factors greater than men and men valued potential reproductive factors, youth and attractiveness greater than women in their prospective mates. In general, the predictions were in line with the predictions of evolution. Although there were deviations in some cultures, sensation and perception. Scientists interested in both physiological aspects of sensory systems as well as in the psychological experience of sensory information work within the area of sensation and perception. Figure 1.11. As such, sensation and perception research is also quite interdicciplinary. Imagine walking between buildings as you move from one class to another. You are inundated with sights, sounds, touch sensations, and smells. You also experience the temperature of the air around you and maintain your balance as you make your way. These are all factors of interest to someone working in the domain of sensation and perception. As described in a later chapter that focuses on the results of studies in sensation and perception, our experience of our world is not as simple as the sum total of all of the sensory information or sensations together. Rather, our experience or perception is complex and is influenced by where we focus our attention, our previous experiences and even our cultural backgrounds. Cognitive psychology. As mentioned in the previous section, the cognitive revolution created an impetus for psychologists to focus their attention on better understanding the mind and mental processes that underly behavior. Thus, cognitive psychology is the area of psychology that focuses on studying cognitions or thoughts and their relationship to our experiences and our actions. Like biological psychology, cognitive psychology is broad in its scope and often involves collaborations among people from a diverse range of disciplinary backgrounds. This has led some to coin the term cognitive science to describe the interdisciplinary nature of this area of research. Miller 2003. Cognitive psychologists have research interests that span a spectrum of topics ranging from attention to problem solving to language to memory. The approaches used in studying these topics are equally diverse. Given such diversity, cognitive psychology is not captured in one chapter of this text per se. Rather various concepts related to cognitive psychology will be covered in relevant portions of the chapters in this text on sensation and perception thinking and intelligence memory lifespan development social psychology and therapy. Developmental psychology. Developmental psychology is the scientific study of development across a lifespan. Developmental psychologists are interested in processes related to physical maturation. However, their focus is not limited to the physical changes associated with aging as they also focus on changes in cognitive skills, moral reasoning, social behavior, and other psychological attributes. Early developmental psychologists focus primarily on changes that occurred through reaching adulthood, providing enormous insight into the differences in physical, cognitive, and social capacities that exist between very young children and adults. For instance, research by Jean Pia figure 1.12 demonstrated that very young children do not demonstrate object permanence. Object permanence refers to the understanding that physical things continue to exist even if they are hidden from us. If you were to show an adult a toy and then hide it behind a curtain, the adult knows that the toy still exists. However, very young infants act as if a hidden object no longer exists. The age at which object permanence is achieved is somewhat controversial. Municata, Mlullen, Johnson and Seagler, 1997. While PJ was focused on cognitive changes during infancy and childhood as we move to adulthood, there is an increasing interest in extending research into the changes that occur much later in life. This may be reflective of changing population demographics of developed nations as a whole. As more and more people live longer lives, the number of people of advanced age will continue to increase. Indeed, it is estimated that there were just over 40 million people aged 65 or older living in the United States in 2010. However, by 2020, this number is expected to increase to about 55 million. By the year 2050, it is estimated that nearly 90 million people in this country will be 65 or older. Department of Health and Human Services, ND. Personality psychology. Personality psychology focuses on patterns of thoughts and behaviors that make each individual unique. Several individuals, eg. Freud and Maslo that we have already discussed in our historical overview of psychology in the American psychologist Gordon Alport contributed to early theories of personality. These early theorists attempted to explain how an individual's personality develops from their given perspective. For example, Freud proposed that personality arose as conflicts between the conscious and unconscious parts of the mind were carried out over the lifespan. Specifically, Freud theorized that an individual went through various psychosexual stages of development. According to Freud, adult personality would result from the resolution of various conflicts that centered on the migration of erogynous or sexual pleasure producing zones from the oral mouth to the anus to the fallus to the genitals. Like many of Freud's theories, this particular idea was controversial and did not lend itself to experimental tests. Person 1980. More recently, the study of personality has taken on a more quantitative approach. Rather than explaining how personality arises, research is focused on identifying personality traits, measuring these traits, and determining how these traits interact in a particular context to determine how a person will behave in any given situation. Personality traits are relatively consistent patterns of thought and behavior. And many have proposed that five trait dimensions are sufficient to capture the variations in personality seen across individuals. These five dimensions are known as the big five or the five factor model and include dimensions of conscientiousness, agreeableness, neuroticism, openness and extraversion. Figure 1.13. Each of these traits has been demonstrated to be relatively stable over the lifespan. Eg rantinin metapelto felt pulkin and cocoa 2007 solds inve99 mccrae and costa 2008 and is influenced by genetics. Eg. Jang Livesley and Vernon 1996. Social psychology. Social psychology focuses on how we interact with and relate to others. Social psychologists conduct research on a wide variety of topics that include differences in how we explain our own behavior versus how we explain the behaviors of others, prejudice and attraction, and how we resolve interpersonal conflicts. Social psychologists have also sought to determine how being among other people changes our own behavior and patterns of thinking. There are many interesting examples of social psychological research and you will read about many of these in a later chapter of this textbook. Until then, you will be introduced to one of the most controversial psychological studies ever conducted. Stanley Mgram was an American social psychologist who is most famous for research that he conducted on obedience. After the Holocaust in 1961, a Nazi war criminal, Adolf Ikeman, who was accused of committing mass atrocities, was put on trial. Many people wondered how German soldiers were capable of torturing prisoners in concentration camps, and they were unsatisfied with the excuses given by soldiers that they were simply following orders. At the time, most psychologists agreed that few people would be willing to inflict such extraordinary pain and suffering simply because they were obeying orders. Mgrim decided to conduct research to determine whether or not this was true. Figure 1.14. As you will read later in the text, Mgrim found that nearly twothirds of his participants were willing to deliver what they believed to be lethal shocks to another person simply because they were instructed to do so by an authority figure. In this case, a man dressed in a lab coat. This was in spite of the fact that participants received payment for simply showing up for the research study and could have chosen not to inflict pain or more serious consequences on another person by withdrawing from the study. No one was actually hurt or harmed in any way. Mgrim's experiment was a clever ruse that took advantage of research confederates, those who pretend to be participants in a research study, who are actually working for the researcher and have clear specific directions on how to behave during the research study. Hawk 2009. Mgrams and other studies that involve deception and potential emotional harm to study participants catalyze the development of ethical guidelines for conducting psychological research that discourage the use of deception of research subjects unless it can be argued not to cause harm and in general requiring informed consent of participants. Industrial organizational psychology. Industrial organizational psychology IIO psychology is a sub field of psychology that applies psychological theories, principles and research findings in industrial and organizational settings. IOC psychologists are often involved in issues related to personnel management, organizational structure and workplace environment. Businesses often seek the aid of IIO psychologists to make the best hiring decisions as well as to create an environment that results in high levels of employee productivity and efficiency. In addition to its applied nature, IIO psychology also involves conducting scientific research on behavior within IO settings. Rigio 2013. Health psychology. Health psychology focuses on how health is affected by the interaction of biological, psychological and socioultural factors. This particular approach is known as the biocschosocial model. Figure 1.15. Health psychologists are interested in helping individuals achieve better health through public policy, education, intervention, and research. Health psychologists might conduct research that explores the relationship between one's genetic makeup, patterns of behavior, relationships, psychological stress, and health. They may research effective ways to motivate people to address patterns of behavior that contribute to poorer health. Macdonald, 2013. Sport and exercise psychology. Researchers in sport and exercise psychology study the psychological aspects of sport performance, including motivation and performance anxiety and the effects of sport on mental and emotional well-being. Research is also conducted on similar topics as they relate to physical exercise in general. The discipline also includes topics that are broader than sport and exercise, but that are related to interactions between mental and physical performance under demanding conditions such as firefighting, military operations, artistic performance, and surgery. Clinical psychology. Clinical psychology is the area of psychology that focuses on the diagnosis and treatment of psychological disorders and other problematic patterns of behavior. As such, it is generally considered to be a more applied area within psychology. However, some clinicians are also actively engaged in scientific research. Counseling psychology is a similar discipline that focuses on emotional, social, vocational, and health rellated outcomes in individuals who are considered psychologically healthy. As mentioned earlier, both Freud and Rogers provided perspectives that have been influential in shaping how clinicians interact with people seeking psychotherapy. While aspects of the psychoanalytic theory are still found among some of today's therapists who are trained from a psychonamic perspective, Rogers's ideas about client- centered therapy have been especially influential in shaping how many clinicians operate. Furthermore, both behaviorism and the cognitive revolution have shaped clinical practice in the forms of behavioral therapy, cognitive therapy, and cognitive behavioral therapy. Figure 1.16. Issues related to the diagnosis and treatment of psychological disorders and problematic patterns of behavior will be discussed in detail in later chapters of this textbook. By far, this is the area of psychology that receives the most attention in popular media and many people mistakenly assume that all psychology is clinical psychology. Forensic psychology. Forensic psychology is a branch of psychology that deals with questions of psychology as they arise in the context of the justice system. For example, forensic psychologists and forensic psychiatrists will assess a person's competency to stand trial, assess the state of mind of a defendant, act as consultants on child custody cases, consult on sentencing and treatment recommendations, and advise on issues such as eyewitness testimony and children's testimony. American Board of Forensic Psychology, 2014. In these capacities, they will typically act as expert witnesses called by either side in a court case to provide their research or experience-based opinions. As expert witnesses, forensic psychologists must have a good understanding of the law and provide information in the context of the legal system rather than just within the realm of psychology. Forensic psychologists are also used in the jury selection process and witness preparation. They may also be involved in providing psychological treatment within the criminal justice system. Criminal profilers are a relatively small proportion of psychologists that act as consultants to law enforcement. Learning objectives. By the end of this section, you'll be able to understand educational requirements for careers in academic settings. Understand the demands of a career in an academic setting. Understand career options outside of academic settings. Psychologists can work in many different places doing many different things. In general, anyone wishing to continue a career in psychology at a 4-year institution of higher education will have to earn a doctoral degree in psychology for some specialties and at least a master's degree for others. In most areas of psychology, this means earning a PhD in a relevant area of psychology. Literally, PhD refers to a doctor of philosophy degree. But here, philosophy does not refer to the field of philosophy per se. Rather, philosophy in this context refers to many different disciplinary perspectives that would be housed in a traditional college of liberal arts and sciences. The requirements to earn a PhD vary from country to country and even from school to school, but usually individuals earning this degree must complete a dissertation. A dissertation is essentially a long research paper or bundled published articles describing research that was conducted as a part of the candidates's doctoral training. In the United States, a dissertation generally has to be defended before a committee of expert reviewers before the degree is conferred. Figure 1.17. Once someone earns a PhD, they may seek a faculty appointment at a college or university. Being on the faculty of a college or university often involves dividing time between teaching, research, and service to the institution and profession. The amount of time spent on each of these primary responsibilities varies dramatically from school to school and it is not uncommon for faculty to move from place to place in search of the best personal fit among various academic environments. The previous section detailed some of the major areas that are commonly represented in psychology departments around the country. Thus, depending on the training received, an individual could be anything from a biological psychologist to a clinical psychologist in an academic setting. Figure 1.18. Other careers in academic settings. Oftentimes, schools offer more courses in psychology than their full-time faculty can teach. In these cases, it is not uncommon to bring in an adjunct faculty member or instructor. Adjunct faculty members and instructors usually have an advanced degree in psychology, but they often have primary careers outside of academia and serve in this role as a secondary job. Alternatively, they may not hold the doctoral degree required by most four-year institutions and use these opportunities to gain experience in teaching. Furthermore, many two-year colleges and schools need faculty to teach their courses in psychology. In general, many of the people who pursue careers at these institutions have master's degrees in psychology, although some PhDs make careers at these institutions as well. Some people earning PhDs may enjoy research in an academic setting. However, they may not be interested in teaching. These individuals might take on faculty positions that are exclusively devoted to conducting research. This type of position would be more likely an option at large research focused universities. In some areas in psychology, it is common for individuals who have recently earned their PhD to seek out positions in post-doal training programs that are available before going on to serve as faculty. In most cases, young scientists will complete one or two post-doal programs before applying for a full-time faculty position. Post-doal training programs allow young scientists to further develop their research programs and broaden their research skills under the supervision of other professionals in the field. Career options outside of academic settings. Individuals who wish to become practicing clinical psychologists have another option for earning a doctoral degree, which is known as a SID. A SID is a doctor of psychology degree that is increasingly popular among individuals interested in pursuing careers in clinical psychology. SID programs generally place less emphasis on research oriented skills and focus more on application of psychological principles in the clinical context. Norcross and Castle 2002. Regardless of whether earning a PhD or SYD, in most states, an individual wishing to practice as a licensed clinical or counseling psychologist may complete post-doal work under the supervision of a licensed psychologist. Within the last few years, however, several states have begun to remove this requirement, which would allow people to get an earlier start in their careers. Munie 2009. After an individual has met the state requirements, their credentials are evaluated to determine whether they can sit for the lensure exam. Only individuals that pass this exam can call themselves licensed clinical or counseling psychologists, Norcross, ND. Licensed clinical or counseling psychologists can then work in a number of settings ranging from private clinical practice to hospital settings. It should be noted that clinical psychologists and psychiatrists do different things and receive different types of education. While both can conduct therapy and counseling, clinical psychologists have a PhD or a side, whereas psychiatrists have a doctor of medicine degree MD. As such, licensed clinical psychologists can administer and interpret psychological tests while psychiatrists can prescribe medications. Individuals earning a PhD can work in a variety of settings depending on their areas of specialization. For example, someone trained as a biocsychologist might work in a pharmaceutical company to help test the efficacy of a new drug. Someone with a clinical background might become a forensic psychologist and work within the legal system to make recommendations during criminal trials and parole hearings or serve as an expert in a court case. While earning a doctoral degree in psychology is a lengthy process, usually taking between five to six years of graduate study, D'Angelus 2010, there are a number of careers that can be attained with a master's degree in psychology. People who wish to provide psychotherapy can become licensed to serve as various types of professional counselors, Hoffman, 2012. Relevant M's degrees are also sufficient for individuals seeking careers as school psychologists. National Association of School Psychologists, ND in some capacities related to sports psychology, American Psychological Association, 2014, or as consultants in various industrial settings. Landers 2011 June 14th. Undergraduate coursework in psychology may be applicable to other careers such as psychiatric social work or psychiatric nursing where assessments and therapy may be a part of the job. As mentioned in the opening section of this chapter, an undergraduate education in psychology is associated with a knowledge base and skill set that many employers find quite attractive. It should come as no surprise then that individuals earning bachelor's degrees in psychology find themselves in a number of different careers as shown in table 1.1. Examples of a few such careers can involve serving as case managers, working in sales, working in human resource departments, and teaching in high schools. The rapidly growing realm of healthcare professions is another field in which an education in psychology is helpful and sometimes required. For example, the medical college admission test MCAT exam that people must take to be admitted to medical school now includes a section on the psychological foundations of behavior.