BILD2Handout2_answers - Theresa Tran OH...

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Theresa Tran OH Thursdays PC Theater 10-11am BILD2 Berg WI11 Handout #2 Human Brain Structures ***PS 3A Celebrum/Cerebellum- first is for info processing, second is for motor coordination (riding a bike once you have already learned) -corpus callosum (connects two sides of the brain) Reticular System-arousal, sleep/awake o Thalamus-acts as a relay station for sensory impulses o Hypothalamus -has a variety of functions including regulation of hormone activity o Prefrontal cortex-involved in judgment and decision making o Olfactory bulb- involved with perception of odors o Amygdala -responsible for some kinds of emotional learning such as fear conditioning HIPPOCAMPUS -encodes new episodic memories (being able to talk about, visualize, and discuss something you’ve learned as opposed to procedural memories such as riding a bike) Frontal Lobe: frontal association area, speech, motor cortex (controls voluntary motor movements) Parietal Lobe: speech, taste, reading, somatosensory association area, including somatosensory cortex (encodes info about touch from the skin) Temporal Lobe: auditory association area, smell, hearing Occipital Lobe: visual association, vision, includes visual cortex (processes visual info coming from the eyes) Long Term Potentiation (LTP): long lasting increase in EPSP amplitude [recall the hypothesis of “Hebbian Synapse” proposing that learning = strengthening of synaptic pathways] Single pathway: High Frequency Stimulation (“tetanus”) inducing a very long lasting EPSP amplitude, and is synapse specific (1. must fire during the tetanus and 2. must be close enough to be affected by the depolarization of the membrane) Convergent pathways (“associative”): even if you are a small input, you can experience an LTP if you fire with the big guy, as
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BILD2Handout2_answers - Theresa Tran OH...

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