sonja's visuals system

[Avery Andrews 920830.0735]
  Bill Powers (920827.0800)

>can you explain how Sonja's visual system identifies the various
>retinal images, and how the relative retinal distances between image
>points are converted into signals?

Not as well as Chapman can: although it would an excellent exercise for
me to try, I think I've got too much else on my plate at the moment to
take up the challenge.

Avery.Andrews@anu.edu.au