2.
INPUT DISABILITIES
Information
arrives at the brain as impulses, transmitted along neurons,
primarily from our eyes--called "visual
input"--and from our ears--called "auditory
input." This input process takes place in the
brain. It does not pertain to visual problems, such as nearsightedness
or farsightedness, or to any hearing problems. This central
input process of seeing, or hearing, or in any other way
taking in or perceiving one's environment is referred to
as "perception." Thus we speak of a child who
has a perceptual disability in the area of visual input
as having a visual perceptual disability,
and one with a disability in the area of auditory input
as having an auditory perceptual disability.
Some children have both kinds of perceptual disabilities,
or they may have problems when both inputs are needed at
the same time-- for example, seeing what the teacher writes
on the blackboard while listening to the explanation of
what is being written. Here
is more on:
