Unit 10: Motivation and Emotion
What actually drives behavior, from a hungry stomach to a hierarchy of needs, and how the body and mind together produce an emotion.
7 topics · 24 questions
Each topic is a path, not a menu: work down it in order and every question builds on the one above. Click any of them to watch the answer draw itself.
10.1 Theories of Motivation: Drive to Self-Determination
- How it worksHow does drive-reduction theory explain motivation as the body correcting an internal imbalance?
- How it worksWalk me through how self-determination theory explains motivation that isn't chasing any reward at all.
- Going furtherWhat happens to intrinsic motivation for a hobby once it starts earning an external reward?
Your turn1 of 2
A hungry person eats to relieve the uncomfortable feeling of hunger, restoring balance to their body. A different person practices guitar for hours purely because they find it enjoyable and personally fulfilling, with no external reward or physical need driving them. Which two motivational theories, respectively, best explain these two behaviors?10.1 Maslow's Hierarchy of Needs
- How it worksHow does Maslow's hierarchy order needs from physiological survival up to self-actualization?
- Common mistakeWhy isn't Maslow's hierarchy a strict staircase that everyone climbs in the exact same order?
- Going furtherWhat happens to someone's place on the hierarchy when a lower need, like safety, suddenly goes unmet again?
- Worked exampleFind which level of Maslow's hierarchy is unmet for someone who has food and shelter but no close friends.
Your turn1 of 2
Someone has stable housing and enough food to eat, so their basic physiological and safety needs are met, but they feel persistently isolated, having no close friends or meaningful relationships in their life. According to Maslow's hierarchy, which level of need is going unmet for this person?10.2 The Biology of Hunger and the Set Point
- How it worksHow do the hormones ghrelin and leptin signal hunger and fullness to the hypothalamus?
- How it worksWalk me through how the set-point theory explains the body defending a stable weight over time.
- Going furtherWhat happens to hunger hormones after weeks of sustained calorie restriction?
Your turn1 of 2
Before a meal, a hormone called ghrelin rises and signals hunger to the hypothalamus. After eating, a different hormone, leptin, rises and signals fullness instead. What does this pair of hormones illustrate about how hunger is regulated?10.3 The Biology of Sexual Motivation
- How it worksHow do hormones and brain structures like the hypothalamus interact to produce sexual motivation?
- Going furtherWhat changes about sexual motivation and behavior across a person's lifespan?
- Common mistakeWhy isn't sexual orientation a choice that hormones or upbringing simply switch on?
Your turn1 of 2
Two people with very similar hormone levels can show dramatically different levels of sexual motivation, while psychological factors like mood, relationship context, and attraction to a specific partner often predict actual sexual desire far more strongly than raw hormone levels alone. What does this pattern suggest about the biology of sexual motivation?10.4 Theories of Emotion: James-Lange to Two-Factor
- How it worksHow does the James-Lange theory claim the body's reaction comes first and the emotion follows?
- How it worksWalk me through how the Cannon-Bard theory has the emotion and the physical reaction happen at the same time instead.
- Going furtherWhat happens to a physically identical arousal, according to the two-factor theory, when it's given two completely different cognitive labels?
- Worked exampleFind which theory of emotion best explains someone at a horror movie interpreting their racing heart as fear rather than excitement.
Your turn1 of 2
One theory of emotion claims a person feels fear only after noticing their heart racing and their body trembling, the physical reaction causing the emotion. A different theory claims the physical reaction and the felt emotion of fear happen simultaneously, triggered together by the same event. Which two theories are being described, respectively?10.4 The Physiology of Emotion and the Polygraph
- How it worksHow does the autonomic nervous system produce the physical signs a polygraph actually measures?
- Common mistakeWhy isn't a polygraph really a lie detector at all, since it can't distinguish fear from guilt?
- Worked exampleFind why a nervous but innocent person can produce the same polygraph readings as a calm but guilty one.
Your turn1 of 2
A detective treats a polygraph result as a definitive 'lie detector' test, assuming it directly measures whether someone is lying. A psychologist points out this is a significant misunderstanding of what the machine actually does. What is the psychologist's correction?10.4 Universal Facial Expressions of Emotion
- How it worksHow did Ekman's cross-cultural research identify a small set of facial expressions recognized universally?
- How it worksWalk me through the difference between a genuine Duchenne smile and a polite, posed one.
- Going furtherWhat changes across cultures isn't the expression itself but the display rules for when to show it?
- Common mistakeWhy isn't a smile always a reliable sign that someone is actually feeling happy?
Your turn1 of 2
One smile involves genuine engagement of the muscles around both the mouth and the eyes, creating visible crinkling at the corners of the eyes. A different smile involves only the mouth muscles, with the eyes remaining comparatively still. Which two types of smile are being described, respectively?