title: Gaze direction modulates visual aftereffects in depth and color.
abstract: Prior physiological studies indicate that gaze direction modulates the gain of neural responses to visual stimuli. Here, we test gaze modulation in the perceptual domain using color and depth aftereffects. After confirming retinotopy of the effects, we employed a balanced alternating adaptation paradigm (adaptation alternates between opponent stimuli) to demonstrate that opposite color and depth aftereffects can co-develop at the same retinal location for different gaze directions. The results provide strong evidence for (a) gaze modulation of aftereffects, (b) generality of gaze modulation across two visual attributes, and (c) perceptual correlates of the modulation of neural activity by gaze direction.
authors.affiliation: Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA. nieman@caltech.edu
authors.forename: Dylan R
authors.initials: DR
authors.lastname: Nieman
authors.forename: Ryusuke
authors.initials: R
authors.lastname: Hayashi
authors.forename: Richard A
authors.initials: RA
authors.lastname: Andersen
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Shimojo
mesh_terms: D003118:Color Perception / Q000502:physiology; D003867:Depth Perception / Q000502:physiology; D005366:Figural Aftereffect / Q000502:physiology*; D005403:Fixation, Ocular / Q000502:physiology*; D006801:Humans; D010775:Photic Stimulation / Q000379:methods