PSYCH 1XX3 Lecture 9: Psych 1XX3 Hunger and Chemical Senses Lecture Notes
4 Apr 2018
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Psych 1xx3 hunger and chemical senses notes mar 26, 2010. Introduction: human evolutionary past: food sources were scarce, and behaviours were motivated by the constant need to obtain energy and nutrients essential to survival. When these levels get low enough, the liver begins to break down "its stored glycogen into glucose, releasing it back into circulation: in this way, the liver and pancreas help to buffer extreme swings in blood glucose levels. Neuropeptide y: another hunger cue comes from neuropeptide y or npy. Just as your liver can send signals to your brain to trigger hunger it also sends signals to the brain that trigger satiety. Low blood glucose and glycogen levels are signal of hunger and high levels are signals of satiety. Cck and meal duration: the small intestine also has a role to play in feelings of satiety, as food moves from your stomach to your gut, the small intestine produces.
