Electrophysiologic Studies during Scanning and Passive Eye Movements in Humans

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Abstract
It has been demonstrated in man that mechanically induced shifts of the retinal image without change in total luminous flux evoke a parietooccipital electrical response (lambda waves). The technique provides a simple method of quantifying responses in the visual system without complication by voluntary movemnents and their associated readiness potentials. The observation contradicts the view that lambda waves are directly concerned with mechanisms preventing blur duiring eye movement.