Afferent delays and the mislocalization of perisaccadic stimuli

Leanne Boucher; J.M. Groh; H.C. Hughes

doi:10.1016/S0042-6989(01)00156-0

Afferent delays and the mislocalization of perisaccadic stimuli

Leanne Boucher
, J.M. Groh
, H.C. Hughes

College of Psychology

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Determining the precise moment a visual stimulus appears is difficult because visual response latencies vary. This temporal uncertainty could cause localization errors to brief visual targets presented before and during eye movements if the oculomotor system cannot determine the position of the eye at the time the stimulus appeared. We investigated the effect of varying neural processing time on localization accuracy for perisaccadic visual targets that differed in luminance. Although systematic errors in localization were observed, the effect of luminance was surprisingly small. We explore several hypotheses that may explain why processing delays are not more disruptive to localization performance.

Original language	American English
Journal	Vision Research
Volume	41
DOIs	https://doi.org/10.1016/S0042-6989(01)00156-0
State	Published - Sep 1 2001

Keywords

Oculomotor; Visual delays; Auditory targets; Saccade; Localization

Disciplines

Psychology

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AU - Groh, J.M.

AU - Hughes, H.C.

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N2 - Determining the precise moment a visual stimulus appears is difficult because visual response latencies vary. This temporal uncertainty could cause localization errors to brief visual targets presented before and during eye movements if the oculomotor system cannot determine the position of the eye at the time the stimulus appeared. We investigated the effect of varying neural processing time on localization accuracy for perisaccadic visual targets that differed in luminance. Although systematic errors in localization were observed, the effect of luminance was surprisingly small. We explore several hypotheses that may explain why processing delays are not more disruptive to localization performance.

AB - Determining the precise moment a visual stimulus appears is difficult because visual response latencies vary. This temporal uncertainty could cause localization errors to brief visual targets presented before and during eye movements if the oculomotor system cannot determine the position of the eye at the time the stimulus appeared. We investigated the effect of varying neural processing time on localization accuracy for perisaccadic visual targets that differed in luminance. Although systematic errors in localization were observed, the effect of luminance was surprisingly small. We explore several hypotheses that may explain why processing delays are not more disruptive to localization performance.

KW - Oculomotor; Visual delays; Auditory targets; Saccade; Localization

UR - https://nsuworks.nova.edu/cps_facarticles/1029

U2 - 10.1016/S0042-6989(01)00156-0

DO - 10.1016/S0042-6989(01)00156-0

M3 - Article

C2 - 11520509

SN - 0042-6989

VL - 41

JO - Vision Research

JF - Vision Research

ER -

Afferent delays and the mislocalization of perisaccadic stimuli

Abstract

Keywords

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