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Psychology Overview and History

Sep 10, 2025

Overview

This lecture introduces the field of psychology, outlines its history, key schools of thought, and the different perspectives and subfields within modern psychology.

Introduction to Psychology

  • Psychology is the scientific study of behavior and mental processes (the psychological triad: behaviors, thoughts, feelings).
  • Psychology aims to correct misconceptions and emphasizes its foundation as a science.
  • Scientific thinking in psychology involves skepticism, open-mindedness, and humility.

Scientific Attitude & Critical Thinking

  • A scientific attitude includes skepticism (not cynicism), open-mindedness, and humility about knowledge.
  • Scientists "follow the data," accepting results even if they contradict expectations.
  • Critical thinking involves questioning sources, evidence, agendas, and considering alternative explanations.

Historical Roots of Psychology

  • Psychology emerged from the intersection of philosophy (mind, thought) and physiology (body, biology).
  • Aristotle introduced theories on sensation, perception, and types of souls (tripartite theory).
  • Dualism (mind and body are separate) vs. monism (mind and body are one, with mental processes as brain byproducts).
  • Descartes’ Cartesian dualism argued mind and body interact and influence each other.

Pioneers and Early Schools

  • Wilhelm Wundt is considered the founder of psychology, establishing the first psychology lab in 1879.
  • Structuralism, led by Edward Titchener, used introspection to analyze conscious experience but lacked objectivity.
  • William James, influenced by evolutionary theory, founded functionalism, focusing on the purpose and adaptation of behaviors.

Key Contributors and Diversity

  • Mary Whiton Calkins completed but was denied a PhD due to her gender; contributed memory research.
  • Margaret Floy Washburn was the first woman to earn a psychology PhD, researching animal behavior.
  • Francis Sumner was the first Black American male to earn a psychology PhD, studying race and bias.

Major Schools of Thought

  • Psychoanalysis (Freud): Focused on unconscious processes and childhood experiences.
  • Behaviorism (Watson, Skinner): Emphasized observable behavior and environmental stimuli.
  • Humanistic psychology (Rogers, Maslow): Emphasized conscious experience, personal growth, and self-actualization.
  • Cognitive Revolution: Renewed focus on scientific study of internal mental states like memory and thinking.

Contemporary Perspectives and Subfields

  • Psychology studies cultural (cross-cultural psychology) and gender influences on behavior.
  • Positive psychology scientifically studies human strengths and flourishing (Seligman, Csikszentmihalyi).
  • The biopsychosocial approach integrates biological, psychological, and sociocultural factors.
  • Perspectives include cognitive, biological, behavioral, psychodynamic, and more.
  • Subfields are divided into basic research (e.g., cognitive, developmental) and applied research (e.g., clinical, educational).

Key Terms & Definitions

  • Behavior — Observable actions of an organism.
  • Mental Processes — Internal, subjective experiences (thoughts, feelings).
  • Dualism — The view that mind and body are separate entities.
  • Monism — The belief that mind and body are a single substance.
  • Structuralism — School focused on analyzing the structure of conscious experience.
  • Functionalism — School focused on the function and adaptation of behavior.
  • Psychoanalysis — Approach emphasizing the unconscious mind.
  • Behaviorism — School focusing on observable behavior only.
  • Humanistic Psychology — Approach emphasizing personal growth and conscious experience.
  • Biopsychosocial Approach — Integrates biological, psychological, and sociocultural levels of analysis.

Action Items / Next Steps

  • Watch the “Back to the Future” video clip on Moodle relating to scientific attitude.
  • Read Module 1 in the Myers textbook.
  • Reflect on your beliefs about the mind-body problem.
  • Review the online article and associated research links about Generation Z and technology.