In support of the topographic-gradient hypothesis, it has been shown that
A) axons do not grow out from the retinas until the retinas are fully grown, which is why babies have disproportionately large eyes.
B) axons do not grow out from the retinas until their target structures (e.g., optic tectums) are fully grown.
C) retinas and optic tectums always grow in precise proportion to one another.
D) the synaptic connections originally formed by retinal ganglion cells on the optic tectums gradually shift as both the eyes and optic tectums grow at different rates during development.
E) both A and B
Answer: D
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In structural family therapy,
A) the therapist initially acts like one of the family and participates in family interactions. B) the therapist adopts a Rogerian approach, focusing on good listening skills and clarification. C) the therapist is very directive in order to break up the existing power structure in the family. D) the focus is on past interactions as they have given rise to present problems.