behavioral final Flashcards
true or false
the placebo ha no intrinsic therapeutic value
true
the effect of the placebo can be
psychological or physical
About —% of the apparent efficacy of antidepressants may be attributable to placebo effect
75
The total drug effect is equal to
it’s placebo effect + active effect
true or false
What counts more in reality Is what is going in the brain/mind not the pharmacological effect .
true
what are the patterns of discovery
1)It’s new. It’ll cure every thing . And of course there are no side effects .
2 – Oooops! Maybe we were wrong. The honeymoon is over .
3 – Is it actually better than any thing we have ? Is it actually better than placebo
factors affecting the placebo affect
relationship between the Dr and the pt the psychological state of the patient the Dr beliefs in the intrinsic worth of his medicine length of time spent with the patient the demeanor of the doctor
what are the factors which influence the hypothalamic control on immediate eating
blood -sugar level, stomach fullness, body temp
true or false
eating is stopped long before it is transformed to sugar
true, Apparently distension of the stomach stimulate
VMH and inhibit further eating
true or false
LH responds to low brain temp. and VMH to high
brain temp.
true
true or false
VMH and the LH have reciprocal effects on the (set point) for body weight
true
note: the limbic system and brain stem nuclei play a role in taste and smell of food
Research results classify people to
restrained eater and unrestrained eater, regardless of their weight
basal metabolism accounts for how much of the person’s energy expenditure
2/3
what are the factors which play against obese people when they try to lose weight
1) the metabolic rate is lower when metabolizing fat tissue
2) their metabolic rate is lower in food deprivation
the best result for decreasing weight comes from
behavioral therapy + drug therapy
true or false
in optic chiasm lesion the circadian rhythm is abolished
false, it is maintained however the periodicity change. it is abolished in suprachiasmatic lesion (no periodicity)
info about the suprachiasmatic nucleus
in the hypothalamus
controls circadian rhythm
periodicity may not be 24 h
In normal light/dark cycle SCN rhythm is ‘phase locked’ to light dark
true or false
light signal don’t reach the SCN in the absence of rods and cons
false, they still reach SCN
note: the rods and cons still influence the SCN
the free running sleep rhythm is?
25 h
true or false
with age there is a decrease in sleep length
true
true or false
in REM sleep there is no spinal reflexes and in non-REM sleep there is an increase in the growth hormones
true
note: in REM sleep there is an increase in temp and blood flow
REM latency is?
90 min
true or false
Stimulation of area surrounding SCN induces slow wave sleep
true
true or false
no one area can stimulate REM sleep but a lesion in one area in the brain stem can abolish REM sleep
true