PSYCH 212 Lecture Notes - Lecture 12: Autonomic Nervous System, Bipolar Disorder, Endocrine System
22 Feb 2017
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Document Summary
Hypothalamus links the nervous system to endocrine system regulates body temperature, hunger, thirst, sleep, stress response and autonomic nervous system. Amygdala responds to both negative and positive stimuli a salience index ex: the whites of eyes extinction - the unlearning of the association between cs+ and cs- Central (ce): site of efferent outputs to hypothalamus. Basal (ba): site of efferent outputs to ventral striatum. Anatomical pathways of threat, fear learning, light, touch, smell, tone / shock. The insula is implicated in a broad range of processes. Ventral striatum, uncles accumbens, caudate, and putamen are all part of the basal ganglion. Human pet study assessing dopamine receptor availability and dopamine neurotransmission in the striatum during amphetamine use. Elevated dopamine release in stratum important for understanding trait impulsivity. Dopamine centrally involved in psychopathology (depression, bipolar disorder, schizophrenia) and the chemical most implicated in addiction. Elevated risk aversion mistake (ram) associated with elevated insult activity.
