PSYCH 1XX3 Lecture Notes - Jelly Belly, Olfactory Bulb, Olfactory Receptor
1 Apr 2014
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Hunger & chemical senses: seeking out food and drink is a fundamental goal-directed behavior; much of day scheduled around feeding. Just as liver sends signals to brain for hunger, also sends signals for saiety straight to the liver, the dog will stop eating. If you inject people with cck report feeling full sooner to controls: the rats who received cck ate more total meals per day than the controls, therefore, total daily food intake was same for both groups. *this shows that cck is a short-term society signal. *cck regulates short-term feeding behaviors, but not long-term energy consumption. Naturally occurring chemical substances that have morphine-like analgesic actions in the body. Individuals who could detect taste differences effectively had survival advantage- avoided dangerous foods, ate more energy/nutrients. Introduction to chemical senses: tactile, visual and auditory systems deal with physical stimuli, sense of taste and small are unique and can detect chemical stimuli.
