Which of the following groups of relatives of someone diagnosed with schizophrenia shows the correct sequence from having the highest concordance rate for schizophrenia to having the lowest concordance rate for schizophrenia?
A) parent, sibling, first cousin
B) parent, first cousin, sibling
C) sibling, parent, first cousin
D) sibling, first cousin, parent
Ans: C) sibling, parent, first cousin
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Drugs that alter the availability of norepinephrine and serotonin are not clinically effective in the treatment of depression for several weeks. Which of the following does this finding suggest?
A. These neurotransmitters are not involved in depression. B. It is overactivity of these neurotransmitters that underlies depression, not underactivity. C. The effectiveness of antidepressants is a placebo effect, as opposed to the result of a biochemical manipulation. D. Changes in neurotransmitter function, as opposed to neurotransmitter level, cause depression.
Individuals who suffer from ___________ should be careful when using caffeine
a. schizophrenia b. alcohol dependence c. depression d. anxiety
Two chess experts carry on a chess game in their heads without a board or any pieces; they simply call out their moves to one another. Obviously, they are good at using
a. sensory memory. b. redintegration. c. mental images. d. implicit memory.
Under which conditions would the sodium-potassium pump likely be far less effective in creating a concentration gradient?
A. if dendrites were generally longer than axons B. if the glia-to-neuron ratio were higher C. if selective permeability of the membrane did not exist D. if it were an active transport system that required energy