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30 Cards in this Set
- Front
- Back
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An individual who has just eaten a bag of pretzels will show what type of response?
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osmotic thirst
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Which chemical increases blood pressure in response to low blood volume?
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vasopressin ADH
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how would the body respond after being wounded in battle (lots of blood loss)?
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hypovolemic thirst & drink lots of gatorade
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which chemical is released when blood sugars get too high?
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insulin
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the most common zeitgeber is..
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the sun
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sleep apnea
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the inability to breath properly during sleep
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migration is a ___ rhythm
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circannual
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the neurotransmitter involved in long-term potentiation
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glutamate
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photosensitive pigment
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melanopsin
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appetite stimulant
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gherelin
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organism's ability to maintain a stable, constant condition (thermoregulation, water/salt concentrations, energy balance, balance of ions, etc.)
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homeostasis
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feedback from changes in one direction elicit compensatory effects in opposite direction
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negative feedback system
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drawn to eat by anticipated pleasure of eating
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positive incentive theory
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motivational state that causes us to stop eating when there is no food left
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satiety
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signals from taste receptors produce immediate decline in positive-incentive value of similar tastes
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sensory-specific satiety
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hunger center
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lateral hypothalamus = feeding
lesions produce aphagia |
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satiety center
(hint: VHS) |
ventromedial hypothalamus = satiety
lesions produce hyperphagia |
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wakefulness center
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posterior hypothalamus + reticular activating system in reticular formation of brain stem (maintains wakefulness)
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sleeping center
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anterior hypothalamus
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facilitation of synaptic transmission following high frequency electrical stimulation applied to presynaptic neurons
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long term potentiation
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satiety peptide (binds to receptors in hypothalamus and reduces food intake)
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CCK
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fenfluramine
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serotonin agonists that reduce hunger, eating, body weight
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fat releases this peptide hormone as a negative feedback signal to inhibit fat production and maintenance
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leptin
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once every 24 hours
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circadian rhythm
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part of brain responsible for spatial cognition
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hippocampus
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part of brain responsible for object recognition
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perirhinal cortex
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short term memories --> long term memories
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memory consolidation
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two types of explicit/conscious memories
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semantic (facts) and episodic/autobiographical (events)
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implicit memory
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unconscious memory shown by performing tasks, improved test performance
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alcohol abuse resulting in memory loss
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korsakoff's syndrome
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