F. G. Ashby

Categorization response time with multidimensional stimuli

F. Gregory Ashby, Geoffrey Boynton, G. Boynton, 1994, Perception & psychophysics.

Perceptual variability as a fundamental axiom of perceptual science

F. Gregory Ashby, F. Ashby, W. Lee, 1993 .

On the relationship among identification, similarity, and categorization: Reply to Nosofsky and Smith (1992).

F. Gregory Ashby, F. Ashby, W. Lee, 1992 .