C. Sigel

Spatial frequency channels in human vision and the threshold for adaptation.

R. Lange, R V Lange, C Sigel, 1973, Vision research.

Evaluation of the candidacy of the pi-mechanisms of Stiles for color-matching fundamentals.

E. Pugh, C. Sigel, 1978, Vision Research.

Pi-4: adaptation of more than one class of cone.

C. Sigel, L. Brousseau, 1982, Journal of the Optical Society of America.

Stiles's II5 color mechanism: tests of field displacement and field additivity properties.

E. Pugh, C. Sigel, 1980, Journal of the Optical Society of America.

Evaluation of the candidacy of the pi-mechanisms of Stiles for color-matching fundamentals.

E. Pugh, C. Sigel, 1978, Vision research.

Composite adaptation and spatial frequency interactions.

R. Lange, R V Lange, C Sigel, 1973, Vision research.