EARLY SENSORY DEVELOPMENT
Early gross and fine motor development is
consistent with expected early developmental milestones. Difficulties
may appear with more complex motor behavior such as climbing a jungle
gym or nesting cubes. Use of utensils may present a problem and
manipulative such as buttons and zippers may prove impossible. There
are however children who present with advanced motor skills. These are
the children who climb everywhere without apparent judgment (though
they never get hurt). They are also the children who figure out the VCR
or the computer at age two. As it is often the case in Autism/PDD,
certain areas of development may excel while others lag way behind
(such as language).
The children may present with over or
under sensitivity within their tactile system. Some children are so
sensitive to light touch that routine self-care becomes an overwhelming
proposition. They fight having their hair cut or washed as though it
caused them significant pain, yet the same child may fall down, scrape
a knee and get up without skipping a beat. For this child the band aid
is worse than the cut. Children may also be under reactive (sometimes
in the same child), and crave certain types of touch that provide deep
firm pressure. Often the children hate "yucky" textures and want their
hands cleaned immediately after touching the finger paints.
Children may also present with over and
under reactivity to vestibular input. Some children may crave lots of
intense spinning, jumping or running back and forth. Other children may
fear movement clinging to their parents whenever their balance is
challenged. They may fear elevators and escalators. Both extremes
indicate some inadequacy in vestibular processing. It suggests that the
child isn't receiving the proper sensory input from this important
sensory system, that is necessary for optimal adaptive behavioral
responses.
Over and under reactivity can also been
seen in the visual system. To much visual stimulation may be
overwhelming to the child. They may also be fascinated with certain
visual stimuli such as watching spinning objects or vertical/horizontal
lines. They may run their eyes along the tables edge or move their
heads back and forth in front of the venetian blinds. Some children may
have a fascination with visual constants which always stay the same,
such as letters and numbers. They may have very advanced visual
memories such as learning a complex puzzle after only seeing them once.
They may relay on a stronger visual system for a weaker auditory one.
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