Looks at the effects of factorially manipulating stimulus presentation time and category decision time; results seem somewhat problematic for formal models that consider either part of the process to take fixed time.
Welham, A.K., Schnadt, M.J., & Wills, A.J. (2003). Speeded categorization: the effects of perceptual processing and decision-making time. In R. Alterman, & D. Kirsh (Eds.). Proceedings of the 25th Annual Conference of the Cognitive Science Society (pp. 1218-1223). Mahwah, NJ: Lawrence Erlbaum Associates.
Proceedings published: August 2003