Browsing Psychology by Author "Gowdy, P.D."

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Colour adaptation modifies the temporal properties of the long- and middle-wave cone signals in the human luminance mechanism

Stromeyer, C.F.; Gowdy, P.D.; Chaparro, Alex; Kladakis, S.; Willen, J.D.; Kronauer, Richard. E. (Wiley-Blackwell, 2000-06)

1. The human luminance mechanism (LUM) detects rapid flicker and motion, summating the neurally integrated L' and M' 'contrast' signals from the long- and middle-wave cones, respectively.2. We previously observed large ...
Second-site adaptation in the red-green detection pathway: Only elicited by low-spatial-frequency test stimuli

Stromeyer, C.F.; Gowdy, P.D.; Chaparro, Alex; Kronauer, Richard. E. (Elsevier Ltd., 1999-09)

The red-green (RG) detection mechanism was revealed by measuring threshold detection contours in the L and M cone contrast plane for sine-wave lest gratings of 0.8-6 c deg(-1) on bright adapting fields of yellow or red. ...