5.2 check

Question 1

_______ is/are responsible for the overall increase in brain size from birth to age 2.
A) Synaptic pruning
B) Production of new neurons
C) Programmed cell death
D) Gains in neural fibers and myelination

Answer 1

gains in neural fibers and myelination

Question 2

Which statement is true about cosleeping?
A) Children who bedshared as babies are better adjusted than children who did not.
B) Bedsharing is most common among European-American mothers and their babies.
C) Infants who sleep with their parents breastfeed longer than infants who sleep alone.
D) Cultural values seldom have any impact on a parent’s decision to cosleep.

Answer 2

Infants who sleep with their parents breastfeed longer than infants who sleep alone.

Question 3

Early, prolonged institutionalization of children ______.
A) strengthens neural connections between the prefrontal cortex and brain structures involved in control of emotion
B) leads to a generalized decrease in activity of the cerebral cortex, especially the prefrontal cortex
C) results in diminished activity in the right cerebral hemisphere compared with the left cerebral hemisphere
D) has no substantial effects on neural activity in the cerebral cortex

Answer 3

leads to a generalized decrease in activity of the cerebral cortex, especially the prefrontal cortex

Question 4

Brain-wave and neuroimaging findings must be combined with evidence from other methods, such as observations and self-reports, to ______.
A) compensate for the recency of brain functioning measures, which are not dependable
B) help clarify the actual meaning of changes in brain activity
C) ensure that brain activity matches associated behaviors in real time
D) overcome the inability of brain functioning measures to assess neural activity before lateralization

Answer 4

help clarify the actual meaning of changes in brain activity