Some stroke victims lose the capacity to perceive motion but retain the capacity to perceive shapes and colors. others lose the capacity to perceive colors but retain the capacity to perceive movement and form. these peculiar visual disabilities best illustrate our normal capacity for:
a. sensory adaptation.
b. parallel processing.
c. sensory interaction.
d. accommodation.

Parallel processing

Explanation:

Parallel processing is the mechanism of memory processing. In this process, a person's brain makes a sense of different several stimuli at the same time. But it is not about the multitasking. It is about for instance when you driving and talking on the phone at the same time.  

Thus in the above statement victims who lost their ability to perceive motion but retain the capacity to top perceives colors and shapes. On the other hand, other victims who lost the capacity to perceive colors and retain movement and form illustrate parallel processing.

i think the answer is true