What would happen if ion channels had lower thresholds than they do now?
What will be an ideal response?
If ion channels had lower thresholds than they do now, the nervous system would be more responsive to stimuli of lesser intensity. In the real world, this might mean greater sensitivity in touch, smell, and sounds.
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Damage to V1 produces ____ and damage to A1 produces ____
a. blindness; complete deafness b. complete deafness; blindness c. blindness; deafness to complex sounds d. blindness; ringing in the ears
Compared to other alternative medicine techniques like acupuncture and meditation, how effective is biofeedback at helping to reduce stress?
a. Biofeedback is far more effective than meditation, but less effective than acupuncture. b. Biofeedback is not significantly more effective, and it requires expensive equipment. c. Biofeedback, acupuncture, and meditation are all rather in effective. d. Biofeedback is far less effective than meditation and acupuncture.
Theorists who emphasize plasticity argue that ________.
A. early experiences establish a lifelong pattern of behavior B. heredity has the most influence on behavior C. children who are high or low in a characteristic will remain so at later ages D. development is open to change in response to influential experiences
The cerebellum and the ________________ cooperate closely in controlling human movement. The cerebellum initiates excitatory commands to muscles, exciting greater muscular activity, whereas inhibitory commands are initiated by the ________________, reducing or inhibiting muscular activity. These structures can be thought of as "on" and "off" switches controlling the amount of muscular activity as
required. What is the name of the structure needed to fill in the blanks? A. Hippothalamus. B. Thalamus. C. Basal ganglia. D. Hippocampus.