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Lecture 12

Lecture 12

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John Bassili

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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
-point of satisfaction
-no motivation
-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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