In a recent experiment conducted on 10- to 14-year-olds and their food choices
junk food was overwhelmingly selected over healthy food.
junk food was mostly selected along with one small healthy food item.
healthy food was selected if it was cheaper than unhealthy food.
healthy food was consistently selected regardless of peer influence or price.
healthy food was selected if it was cheaper than unhealthy food.
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The "neurotrophic" theory of antidepressant efficacy proposes that antidepressants work by
a. enhancing neurotrophic factors that reverse stress-induced damage to various brain regions b. enhancing the neurotransmission between monoamine-releasing neurons and other neurons c. reversing the deleterious effects of monoamines on neuronal architecture.
Sherrington deduced that transmission at a synapse must be slower than conduction along an axon. This was based on what kind of evidence?
A. Temporal summation B. Drugs that increase or inhibit activity at synapses C. The speed of reflexive responses D. Differences in diameter between axons and dendrites