Mouse models of Down syndrome suggest that __________ of __________ may impair hippocampal synaptic plasticity and associated learning and memory.
A. overactivity; glutamate
B. overactivity; GABA
C. underactivity; glutamate
D. underactivity; GABA
Answer: B
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What will be an ideal response?
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a. hues. b. levels of brightness. c. amounts of saturation. d. amplitudes.
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