Parietal cortex is often said to be the apex of the motion processing stream with specializations for spatial perception. While it is true that motion analysis has the richest expression in the inferior parietal lobe, more goes on there than meets the I. Studies that show parietal cortex encroaches on prefrontal's ground of executive function will be presented as well as a demonstration that topographic gain field maps in area 7a are distorted by the monkey's behaviors. The presence of powerful motion encoding neurons in STPa further dilute the idea of an ascending convergent motion processing stream. We question the dogma built carefully over the last twenty years that motion processing has an apex and that area 7a is it.

The experiments of KC Andersen, RE Phinney, JA Turner, G Jando, S Quraishi, M. Raffi in my laboratory will be used to buttress these arguments. Supported by NEI, NIDA, NSF, ONR, Whitehall Foundations.