Lecture Notes: 25 Psychology Facts About Human Behavior

Introduction

• The human mind is complex and many aspects remain unexplored.
• Discussion on various psychology facts relating to human behavior.

Habit Formation

• Study: University College London, 2009.
• Findings: Habits can form in approximately 66 days; range from 18 to 254 days.

Mind Wandering

• Finding: Mind wanders 30% of the time daily; can reach 70% while driving on quiet roads.

Overthinking

• Impact: Can lead to depression and destructive patterns.
• Advice: Engage in coping strategies to manage stress and avoid overthinking.

Perception of Food

• Observation: Food tastes better when made by someone else due to low expectation.

Impact of Preservatives

• Study: Southampton University, 2021.
• Findings: Sugary cereals negatively affect IQ in children; healthier options may boost IQ by 14%.

Loneliness

• Risks: Can lead to depression and psychological issues.
• Social Media: Can increase feelings of loneliness.

Authority and Brain Function

• Research: UC Berkeley, 2017.
• Conclusion: Power can impair brain's operation, reducing empathy and increasing risky behavior.

Reading and Line Length

• Research: NC Dyson, 2004.
• Conclusion: Longer lines (100 characters) are read faster than shorter ones.

Friend Capacity

• Concept: Dunbar’s number - maximum 150 friends.
• Basis: Related to brain's neocortex.

Emotional and Physical Pain

• Link: Emotional pain can trigger physical symptoms like headaches and joint pain.

Memory and Serial Position Effect

• Concept: Easier to remember beginnings and endings of sequences.

Emotional Impact on Cells

• Mechanism: Emotions affect cell programming through neuropeptides.

False Memories

• Concern: Susceptibility to believing false memories during high-stress situations, like police interrogations.

Subconscious Decision Making

• Statistic: 95% of decisions are made subconsciously.

Color and Productivity

• Study: University of London, 2006.
• Finding: Blue is linked to increased focus and productivity.

Chromosome Study

• Historical Research: Early 20th century, Thomas Hunt Morgan's work with fruit flies.

Dopamine's Role

• Common Belief: Associated with pleasure.
• Alternative View: It may enhance curiosity and problem-solving.

Human and Animal Behavior

• Research: University of Leicester, 2012.
• Finding: People may choose aggressive pets that reflect their own personalities.

Seven Year Itch

• Phenomenon: Relationships often struggle around the 7-year mark.

Internet Use

• Impact: Linked to depression and OCD behaviors, though not officially diagnosed.

Busyness and Happiness

• Balance: Need discretionary time separate from obligations for well-being.

Self-Fulfilling Prophecies

• Definition: Beliefs can influence behavior and outcomes in others.

Sunk Cost Fallacy

• Concept: Continuing an endeavor due to prior investment, tied to cognitive biases.

Illusion of Control

• Insight: Perception of control may be more guided than real.

Mirror Neurons

• Discovery: Early 1990s in macaque monkeys.
• Role: Facilitate learning through imitation.

Conclusion

• Understanding these psychological insights can be both illuminating and practical for self-awareness and improvement.