You can read about SPD in detail online here and here. But those are general explanations. For some, this means hyper sensitivity to their surroundings, but Carver has LOW registration. Here's what that means for our little boy:
Carver has difficulty processing and organizing what he's getting from his senses, but not just the 5 we all think of. These are the 3 senses that most relate to Carver.
Tactile is somewhat straight forward – relating to the sense of touch. Recommendations include vibrating toothbrushes, deep pressure activities, using puffs and loofahs in the bath, shaving cream, lotion, squeezing playdough, playing in the sandbox, with containers of dry beans/rice/pasta. This system has 3 majors kinds of difficulties – “tactile defensive” or oversensitivity, “tactile seeking” which crave touch input, and “poor tactile discrimination” which have difficulty with hand skills/fine motor. Carver fits into the 2nd two categories, which must be a possibility, as well.
The proprioceptive system is the input from sensations related to movement of the muscles and joints. It tells the body where the limbs are in relationship to each other without seeing them. So his movements are clumsy, stairs are difficult because he can’t see his hands, he doesn’t pull down on the back of his pants to take them off, he probably likes mouthing toys because he’s looking for more input than the rest of his body is supplying. Treatments include big physical activities, pushing and pulling heavy objects, hanging from a bar, jumping off things, climbing on parents and furniture, tug-a-war, blindfolding activities, etc…
The vestibular system is similar, but more about where we are in space – gravity and our surroundings. I see this in Carver in how he gets nervous up on the playground equipment, his clumsiness, poor bilateral motor skills (coordination between right and left sides of the body), high level of activity making it difficult to concentrate on a present task, poor auditory processing skills. Activities for treatment include swimming, gymnastics games, jumping, trampolines, swings, blanket “burritos,” rocking, rolling up and down a hill, bike riding on slopes and flats.
So there you go! We just love him to pieces, we have good days and bad days, but we are hopeful that we're headed in the right direction.