An electrical charge applied to an axon that moves the membrane potential from -70 mV to -45 mV will result in a(n) __________.
A. action potential
B. postsynaptic potential
C. downward shift of the threshold of excitation
D. upward shift of the membrane threshold
Answer: A
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Oliver Sacks's patient with neglect syndrome had which of the following problems? a. He experienced phantom pain in his paralyzed leg
b. He often crashed into things, because he couldn't feel anything on one side of his body. c. He could not recognize Dr. Sacks when he visited. d. He could not recognize his own leg.
A pattern of depression found among young children caused by separation from their mothers is known as:
A)clinical depression. B)anaclitic depression. C)situational depression. D)recurrent depression.
A survey of the general population was conducted to determine the prevalence of any of the anxiety disorders. If the sample consisted of 1,000, how many people were likely to have reported symptoms meeting the criteria for any anxiety disorder?
a) 25 b) 50 c) 125 d) 250
Phenylketonuria (PKU) is a genetic disorder that __________.
A. causes damage to the central nervous system B. is almost always fatal unless diagnosed immediately after birth C. results from an extra chromosome on the 21st pair D. is not apparent in a child's urine or blood samples until age 4 or 5