Final answer:
Akinetopsia is the disorder that causes the brain to be unable to process motion, causing individuals to see moving objects as a series of stills.
Step-by-step explanation:
The disorder that prevents the brain from processing motion is known as c. Akinetopsia. People with akinetopsia are unable to perceive motion normally; objects in motion may appear to them as a series of still images. Akinetopsia is different from ataxia, which is a lack of coordination in voluntary movements, and from prosopagnosia, which refers to the inability to recognize faces. Neither achromatopsia, which pertains to color blindness, nor astereognosia, which is a failure to recognize objects by touch, and not to mention agnosia, which is a general term for the inability to process sensory information, indicate the specific inability to perceive motion.