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Biological Motivation. Chapter 6 Key Terms: Motivation, Homeostasis, Drive Reduction Theory, Hypothalamus. Motivation. Define the following: Motivation Biological What might biological motivation mean? Examples?. Homeostasis.

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biological motivation

Biological Motivation

Chapter 6

Key Terms: Motivation, Homeostasis, Drive Reduction Theory, Hypothalamus

motivation
Motivation
  • Define the following:
    • Motivation
    • Biological
  • What might biological motivation mean?
  • Examples?
homeostasis
Homeostasis
  • Tendency of all organisms to correct imbalances and deviation from their normal state
  • Example:
    • Fever/sweating
hunger
Hunger
  • Lateral Hypothalamus: makes us eat
    • More active when cold
  • Ventromedial Hypothalamus: makes us stop eating
    • More active when hot
glucostatic theory
Glucostatic Theory
  • Hypothalamus monitors blood glucose
  • BG drops, LH stimulated
  • Insulin released
  • After meal: liver secretes glucagon
set point theory
Set-Point Theory
  • Set-Point: weight around which day-to-day weight fluctuates
  • If VMH is destroyed, you will not eat until you explode
obesity
Obesity
  • Dr. Stanley Schachter
  • Obese people respond to external cues for eating
    • Cracker & Almond experiments
drive reduction theory
Drive Reduction Theory
  • Clark Hull (1943)
  • All motivation comes from physiological needs
pulling it apart
Pulling it Apart
  • Not all drives have physiological origins
  • Harry Harlow monkey study
  • Pleasure centers in the brain are drives for stimulation
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