Much of the research in the lab has grown from Gordon Legge's interest in how contrast signals are analyzed by the visual system. Studies of contrast discrimination have provided one of the best ways for evaluating contrast coding:
Akutsu H. & G.E. Legge. Discrimination of compound gratings: Spatial frequency channels or local features? Vision Research, 35, 2685-2695, 1995.
Legge G.E., D. Kersten & A.E. Burgess. Contrast discrimination in noise. Journal of the Optical Society of America, A4, 391-404, 1987.