In recent studies of children with fragile X syndrome, the reason for the disorder seems to be

A) lack of synaptic pruning.
B) too much synaptic pruning.
C) exposure to an overly stimulating environment.
D) problems in the visual-motor cortex.


A) lack of synaptic pruning. In this syndrome, a defective gene suppresses the normal production of a protein that is important for synaptic pruning.

Psychology

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Which one of the following procedures is an appropriate way to control for order effects in a within-subjects experiment? Arrange so that each condition

a. follows every other condition an equal number of times b. occurs equally often in each ordinal position c. is presented once to each group d. occurs only once

Psychology

Neonates respond positively to several flavors contained in breast milk. These include

a. sweet and salt. b. salt and sour. c. sweet and umami. d. salt and bitter.

Psychology

Given a list of words to remember, Helen notices that half of the words are items from the kitchen, while the other half are items from the garage. She realizes that by _____________ the words into two groups, it will be easier to remember them

A) rehearsing B) transferring C) chunking D) retrieving

Psychology

Selective encoding is the ability to compare new problems with old information or with problems already solved

Indicate whether this statement is true or false

Psychology