What is defined as the amount of time it takes an individual to respond to a stimulus?

When a 1-month-old kitten is put in the dark and kept there during the fourth week of life and beyond, damage to visual centers of the brain is severe and permanent. This example provides evidence of

A) brain plasticity. B) synaptic pruning. C) lateralization of the cerebral cortex. D) sensitive periods in brain development.

Muscular control spreads in a pattern from head to toe, according to the

a. zone of proximal development. b. adaptive gradient. c. cephalocaudal pattern. d. proximodistal pattern.