ANT 201 Lecture Notes - Lecture 18: Dorsolateral Prefrontal Cortex, Ventromedial Prefrontal Cortex, Vagus Nerve
11 Dec 2016
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Rat in a box sound played-- bp normal electrify rat -- bp raises. Later sound played alone -- bp raises (acquisition) Fear: endocrinology: man in the study, day of first jump: big jump in cortisol, epinephrine, and decrease in testosterone (to rest repro; sympa ns) Pituitary: anterior pituitary: receives signals in private circulation from hypothalamus that controls what is synthesized and released in general circulation, posterior: in frontal lobe; nerve endings of oxytocin and basal pressing neurons; hormones released in general circulation. Glucocorticoid activation: adrenal cortical trophic hormone: acth --> adrenal gland --> release in cortisol. Adrenal glands: on kidneys, cortex: cortisol released from here, medulla: secrete epinephrine/adrenine; controlled directly by sympa ns. Glucocorticoids: stress hormones: cholesterol/cortisal/estrogen/testosterone -- all steroids. Adrenal medulla is part of sns: secrete epinephrine/norepinephrine, mobilize glucose for fight or flight. Dilation of arteries , increase in heart rate, breathing rate.
