Lecture 1 Flashcards
summary of her research
- change in M v F eye use for social stimuli regardless of stress?
- M & F left eye use is more or less in for novel enviro?
- F more or less lateralized when stressed?
- no difference
- more
- more
define stress
- importance attached to thing
- physical pressure, pull, force exerted on one thing by another
- physical factor ie. mental state, that distrubs body’s normal state of functioning.
Chess master during game & metabolic demands
same metabolic demands as person running race. same physical responses.
define stress physiology
how the body responds to stressful events. biological and psychological effects of stress
define homeostasis
body has ideal level for many components and want to keep all components in balance
define stressor
anything in outside world, or anticipation of that thing that knocks the body out of homeostatic balance.
define stress response
what the body does to re-esablish homeostasis
Hans Selye - known as?
studied effects of what?
findings?
3 tissue changes
- father of stress research
studied effects of ovarian extract.
found both control & experimental had same result, prob bc they were stressed with how they were handled - peptic ulcers, enlarged adrenal glands, shrunken immune tissue.
body response to broad range of stressores?
similar set of responses to broad range of stressors
define allostasis
regulate to ideal set point through various mechanisms
the acute stress response - adapted for -- action? - mobilizes ? - increase ? cardiovascular ties. reproduction? immunity? pain? memory?
- adapted for muscle action
- mobilizes energy from storage
- increase heart rate, blood pressure, breathing rate.
- slow digestion
- halted reproduction
- immunity inhibited
- stress-induced analgesia
- certain memory and senses improve. others inhibited
define chronic stress
activates stress response way longer than it was developed to be on for.
selye’s 3 stages of the stress response
- alarm - notice youve been pushed out of allostatic balance
- adaptation/resistance: stress response kicks in to try to bring you back to balance
- exhaustion: chronic stress kicks in. activated for too long.
how you get sick from chronic stress?
get sick bc symptoms important for basic bodily function are inhibited when dealing with stress.
define allostatic load
wear and tear from pushing the body in and out of balance.