Piasecki: EMOTIONS Flashcards
What are emotions good for?
evolved to help us respond to important situations and to convey our intentions to others
T/F: Voluntary and involuntary emotions are generated by different parts of the brain.
True
Primary emotion experienced by all social animals; has a visceral and somatic motor response
fear
The brain has shortcuts for emotions. Give an example.
See a snake and flinch before you can interpret the situation as “Oh, that’s a snake.”
How are responses to fear adaptive?
pale skin: diversion of blood flow
dry mouth: no need to salivate
heart pounding: move more quickly
etc etc
Name 5 structures that mediate emotion.
hypothalamus limbic system brainstem nucleus accumbens prefrontal cortex
Functions of hypothalamus
light dark cycle
temp regulation
neuroendocrine (pituitary)
integral in emotions/sexual behaviors
What happens to cats when you remove their cerebral hemispheres? What happens when you remove hemispheres + hypothalamus?
rage; no rage
Link between higher cortical activity and the “lower” systems that control emotional behavior
limbic system
What comprises the limbic system?
limbic lobe amygdala hippocampus mammillary bodies orbital and medial prefrontal cortex nucleus of thalamus
What gryi are incorporated in the limbic lobe?
cingulate gyrus
parahippocampal gyrus
What do the Kluver and Bucy studies show about the limbic system (removal of anterior temporal lobe)?
raging monkey became docile, orally fixated, and just a weirdo *make love, not war
Things that occur w severe temporal lobe damage (Kluver Bucy Syndrome). What can cause it?
visual agnosia apathy disturbance in sexual function dementia, aphasia, amnesia **make love, not war - not aggressive, hypersexual; tumors, trauma, herpes, surgery
What is the amygdala and where is it?
nuclear mass in the white matter of temporal lobe in front of hippocampus
What does the amygdala connect to?
olfactory bulb
cerebral cortex
brainstem & hypothal