Originally Posted by
alf5071h
Tomaski, #40, the skills required for awareness - understanding, do not involve a motor function.
I do not disagree, however the mental processing required to exercise those awareness skills can compete for cognitive resources with the mental processing required to execute a motor function if that motor function does not yet reside in procedural memory. This is easily demonstrated by attempting to accomplish a still-developing psychomotor skill (juggling perhaps?) and simultaneously engaging in another cognitive task such as conversation, solving an moderately easy math problem, or the like. There is only so much working memory available, and the more that is used for one task is the less available for another.