In article <HUCKA.94May2171002 at krusty.eecs.umich.edu>,
hucka at krusty.eecs.umich.edu (Michael Hucka) wrote:
>> I'd like to find out whether visual perception of depth based on information
> *other* than stereopsis (e.g., using linear perspective or texture gradients)
> is processed preattentively.
Check out references by James Enns and colleagues (Enns & Rensink; Aks &
Enns). He and his friends have shown preattentive search for perspective
line drawings and shape from shading. Kleffner & Ramachandran have also
shown the same in the case of shape from shading. If you want specifics,
email me and I'll look them up.
symonsl at qucdn.queensu.ca