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5 Feb 2011
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Psychology II Lecture 12
Chapter 13 Motivation and Emotion
-motivation gives us the energy to do something
-helps define direction
3 characteristics
1) initiate our action
2) determine what we pursuit
3) how much we persist in our pursuit
Drive Theory
-realization of basic need that are essential to survival, like hunger, thirst, external temperature
-when deprived of a particular need, we are driven to get it
-regulatory system known as homeostasis is the simple way of motivation
3 Essential Properties
1) setpoint (reference point)
-basic need that gives satisfaction
2) detector
-detect deviation from setpoint
-re-establish setpoint
3) corrective mechanism
-trigger a mechanism to go back to set point (negative feedback)
-happens repeatedly
-body system remains in equilibrium
Setpoint
-point of satisfaction
-no motivation
Detector
-nutrient detector that detects when body is deprived of nutrient
Corrective Mechanism
-driven to look for food
3 Factors that Promote Eating other than Homeostasis
1) Social Pressure
2) Hedonism- desire to get pleasure
3) Cultural Norm- when you are with someone, it’s not nice to eat less because it appears to be
an insult to a host even if you reach the setpoint
The Way We Eat
-there was no golden age of food, we ate unhealthy food in the past as well
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Document Summary

Motivation gives us the energy to do something. 3 characteristics: initiate our action, determine what we pursuit, how much we persist in our pursuit. Realization of basic need that are essential to survival, like hunger, thirst, external temperature. When deprived of a particular need, we are driven to get it. Regulatory system known as homeostasis is the simple way of motivation. Trigger a mechanism to go back to set point (negative feedback) Nutrient detector that detects when body is deprived of nutrient. There was no golden age of food, we ate unhealthy food in the past as well www. notesolution. com. More kids develop type ii diabetes, which is not genetic. Temptation, food is attractive, tastes good, and makes people feel satisfied. Low income people have higher rate of obesity. Difficulty in providing food for the large population. After political reform, problem of food availability is solve. Ate less food due to lack of availability, but showed healthy diet.

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