The precise tuning of vibration along the basilar membrane reflects
A) lateral inhibition of inner hair cells by outer hair cells.
B) the loss of outer hair cells due to the aging process.
C) the contractile capacity of inner hair cells.
D) the contractile capacity of outer hair cells.
E) longitudinal tension of the basilar membrane.
Answer: D
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At 12-16 months of age, infants no longer prefer the ______ of infant-directed speech.
A. long pauses B. simplified syntax C. high pitch D. pitch variability
IQ scoring standards have been adjusted in the last 50 years to reflect the fact that:
a. People are scoring more poorly on the tests than they have in the past b. The average performance on IQ tests has risen c. Fewer people are mentally retarded now d. Our genes are making us more intelligent
Validity refers to
A) whether a test measures what it is supposed to. B) whether the number of items on a scale is too large. C) whether obtained results are reliable over time. D) the degree of strength of the effects found. E) the extent to which the test was administered to the correct sample of people.
The specialization of the left and right hemispheres of the brain is termed
A) synaptogenesis. B) lateralization. C) myelination. D) mirror neuron.