Filling-in the details on perceptual fading.
We examined the perceptual disappearance (or 'filling in') of a peripheral target surrounded by dynamic texture. Targets defined by different visual attributes were used to explore the importance of target properties in determining the time-course of fading. Introducing luminance-, motion- or direction-contrast between the target and background increased the time-to-fade. For motion contrast, this was related to target visibility. Targets defined by a difference of texture from the background took longer to fade than those defined by a difference of motion. This might correspond to activity in different visual areas, or could be due to different visibilities in each case.
Welchman
A E
AE
Neural Systems Group, Department of Psychology, Ridley Building, University of Newcastle-upon-Tyne, NE1 7RU, Newcastle-upon-Tyne, UK. a.e.welchman@ncl.ac.uk
Harris
J M
JM
D000222:Adaptation, Physiological / Q000502:physiology; D015350:Contrast Sensitivity / Q000502:physiology; D005260:Female; D006801:Humans; D008029:Lighting; D008297:Male; D009039:Motion Perception / Q000502:physiology; D010466:Perceptual Closure / Q000502:physiology*; D013997:Time Factors