30 July 2019 Flashcards
amygdala is the
threat sensor
the amygdala has three things:
emotional
impulsive
immediate gratification
dorsolateral prefrontal cortex is the
rational part
dorsolateral prefrontal cortex has three things:
rational
planning
goal-oriented
the somatic marker does what?
integrates the emotional and rational centers for good decisions
the rational blue part does
action selection systems
social loop
impulsive immediate red part is
reward seeking system
- primal part
five s/s of ventral prefrontal syndrome:
- dis-inhibition
- lack of concern about consequences
- impulsiveness
- inappropriate behaviors
- emotional liability
stress response affects three things?
somatic nervous system autonomic nervous systems neuroendocrine system (adrenal medulla
the neuroendocrine system work on what structure:
adrenal medulla
somatic NS does what?
increases muscle tension
autonomic NS does what?
shunts blood from skin & gut to muscles
neuroendocrine system is what?
epinephrine enhances cardiac function, relaxes intestines, increases metabolic rate
cortisol does five things?
- mobilizes energy -glucose
- suppresses immune system
- turns on anti-inflammatory
- turns on “memory maker” cells in the hippocampus
what type of memory does memory maker affect?
episodic
HPA stands for
Hypothalamus
Pituitary
Adrenal
stress affects three things:
- somatic NS
- autonomic
- neuroendocrine
finnes gage blew out what and did what?
blew out the frontal lobe
- disconnection between rationale & primal brain
- couldn’t imagine forward
so when you cut off the connection between rational and primal you affect
understanding of social disapproval
become impulse
negative effects of chronic stress :
- increased blood sugar
- immunosuppression
- blood vessel changes (heart attack or stroke)
- damage to cells of the hippocampus
- weaken or break rational control of ipulse
when there is an increase in stress what happens to the amygdala?
it overreacts to threats or perceived threats
when the amygdala overreacts what happens to the frontal lobe?
frontal lobe is less able to insure a socially appropriate response to perceived threat
amygdala - frontal lobe connection short hand:
amygdala is hypersensitive
frontal lobe link is broken