A 9-week-old child does not reach with the right hand toward an object in the left visual field:
A) until connections are mature enough between the right eye and the brain.
B) because the child cannot maintain balance when the center of gravity moves to one side.
C) until the visual cortex is mature.
D) because the corpus callosum is not yet mature.

Question

Quizplus · Accepted Answer

The corpus callosum, which connects the two hemispheres of the brain, is not fully mature in a 9-week-old child, affecting the ability to coordinate movements across the midline.

A 9-Week-Old Child Does Not Reach with the Right Hand