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Why do people sometimes do bad things just because someone else told them to? And what does the term Groupthink mean? In today's episode of Crash Course Psychology, Hank talks about the ideas of Social Influence and how it can affect our decisions to act or to not act.

If you are currently in need of help: www.mentalhealth.gov/get-help/

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Table of Contents:

Milgram Experiment 0:31
Automatic Mimicry 3:29
Solomon Asch 4:08
Normative Social Influence 5:31
Social Facilitation 5:59
Social Loafing 6:19
Deindividuation, Group Polarization, & Groupthink 6:50

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1. Intro to Psychology
2. Psychological Research
3. The Chemical Mind
4. Meet Your Master: Getting to Know Your Brain
5. Sensation & Perception
6. Homunculus
7. Perceiving is Believing
8. Consciousness
9. To Sleep, Perchance to Dream
10. Altered States
11. How to Train a Brain
12. The Bobo Beatdown
13. How We Make Memories
14. Remembering and Forgetting
15. Cognition: How Your Mind Can Amaze and Betray You
16. Language
17. The Power of Motivation
18. The Growth of Knowledge
19. Monkeys and Morality
20. Adolescence
21. Rorschach & Freudians
22. Measuring Personality
23. Controversy of Intelligence
24. Brains Vs. Bias
25. Feeling All the Feels
26. Emotion, Stress and Health
27. Let's Talk About Sex
28. Psychological Disorders
29. OCD & Anxiety Disorders
30. Depressive and Bipolar Disorders
31. Trauma & Addiction
32. Schizophrenia & Dissociative Disorders
33. Eating and Body Dysmorphic Disorders
34. Personality Disorders
35. Getting Help - Psychotherapy
36. Biomedical Treatments
37. Social Thinking
38. Social Influence
39. Prejudice & Discrimination
40. Aggression V. Altruism

In this crash course series hosted by Hank Green, learn the basics of psychology in videos lasting about 10 minutes each, covering the fundamental ideas of psychological science.