Anxiety Flashcards
people w stress-related disorders have trouble turning which system off?
HPA
master regulator of the stress response
CRF
found throughout the brain (incl amygdala/brainstem/cortex)
increasing the level of CRF –> anxiousness
lies in temporal lobe just behind the amygdala - falls victim in Alzheimer’s
hippocampus
learning of fear takes place where?
amygdala
part of PFC connected to the amygdala
orbitofrontal cortex
stress/anxiety are RF’s for what heart disease?
CAD
high levels of cortisol can lead to:
HTN obesity diabetes osteoporosis suppressed immune fxn memory impairment changes in brain structure depression
chronic stress impacts: adrenals, hippocampus how?
adrenal cortex hypertrophy
neuronal atrophy in hippocampus
people with this have 50% chance of developing anxiety disorder
anxious temperament
which behavior is very important to anxiety disorders?
freezing