PSYC 101 Chapter Notes - Chapter 10: Lateral Hypothalamus, Leptin, Cholecystokinin
18 Apr 2014
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Document Summary
Gastric signals: signs of hunger that originate in the stomach. The full stomach releases hormone cholecystokinin (cck)- the off signal . Glucose drops: sugar receptors in brain and liver signal start eating center of brain. There are certain regions that are hunger centers. Ventromedial hypothalamus: when activated results in, cessation of hunger and restricts eating. Leptin: inhibits the production of a neurotransmitter in the hypothalamus that induces eating. Serotonin: partly responsible for the satiating effect of cck. Genetics: there are a # of fat cells that are genetically given to us. Set point: the weight maintained with no effort to gain or lose weight. In the past the focus was on : emotional state and external food cues. Current research if focusing: time and place cues learned associations. Anorexia nervosa: relentless pursuit of thinness through starvation. Binge eating disorder: recurrent episodes of compulsively eating large amounts of food. Despite not being hungry, eat quickly to point of discomfort.
