PCT vs. Cognitivism

[From Bill Powers (920817.2100)]

Penni Sibun (920816) --

Your "interactionist" picture of driving certainly shows how complex and
variable it can be. I had written a long and windy response, which I
somehow, and fortunately, managed to destroy. I think the most productive
step would be just to cite a little bit of your description of driving, and
ask you a simple question.

You say

new england is covered in backroads--they are twisty, hilly, narrow,
and old, and are subject to nearly all possible weather conditions.
the way one drives them is to keep one's left wheels near, or quite
possibly over, the center line (if it is visible).

My question is this: would you explain, in terms of cog. sci,
interactionism, or any other approach HOW a driver keeps the "left wheels
near, or quite possibly over, the center line (if it is visible)"? By this,
I mean just explain how the intention that this result should happen gets
turned into the actual happening.

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Best

Bill P.