Lorrin Andrews Riggs

Now retired. Research centered on vision and visual perception. Riggs devised the first contact-lens electrode for recording the human electroretinogram (1941). With Ratliff, recorded the involuntary movements of the human eye during attempted fixation, and devised an optical system to stabilize the retinal image against these movements. Determined the rate and extent of the disappearance of the stabilized image (1953). With Volkmann, measured the suppression of vision by inhibitory signals from the brain during saccades (1968) and blinks (1980). With White, recorded the decay of the orientation-contingent afteraffects of color.