Janet had a stroke and lost the capacity to perceive motion but retained the capacity to perceive shapes and colors. George also
had a stroke and lost the capacity to perceive colors but retained the capacity to perceive movement and form. These peculiar visual disabilities best illustrate our normal capacity for:
Parallel processing is the ability of the brain to process many information of differing quality at once.this process involves analyzing and distributing the receive stimulus into four compartments : Color, shape, motion,depth.
George stroke made him to lost the capacity to perceive colors but retained the capacity to perceive movement and form
Janet had a stroke and lost the capacity to perceive motion but retained the capacity to perceive shapes and colors.
The disability in the question are typical type of the four compartment of Parallel processing
The person who made such comments usually had a a really strong preference in one economic system, to the point where that person refuse to acknoweldge the weakness in their preferred view and the strength in the opposing view. This bias could easily be held by all sides.