Author Question: Which of the following supports the notion that brain development can be modified by experiences? ... (Read 106 times)

Alainaaa8 · **on:** Jun 22, 2018

Which of the following supports the notion that brain development can be modified by experiences?

a. The motor cortex of a blind person is enlarged relative to that of a sighted person.
b. The somatosensory cortex in the cortical regions devoted to control of the fingers is smaller in expert guitar players relative to novice players.
c. The visual cortex is larger in blind persons.
d. Apoptosis trims the number of dendritic branches in the brain.
e. The development of the neural circuits for depth perception requires input from both eyes during a critical period.

Question 2

If the axon of a newly developed neuron is unable to find a vacant postsynaptic cell, it will experience

a. apoptosis.
b. a life-sustaining signal.
c. synaptic contacts with radial glial cells.
d. an opportunity to reroute.
e. cell division.

sarajane1989 · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

Answer: e. The development of the neural circuits for depth perception requires input from both eyes during a critical period.

Answer to Question 2

Answer: a. apoptosis.