Spatial consequences of bridging the saccadic gap

Kielan Yarrow; Louise Emma Whiteley; John C Rothwell; Patrick Haggard

doi:10.1016/j.visres.2005.04.019

Spatial consequences of bridging the saccadic gap

Kielan Yarrow, Louise Emma Whiteley, John C Rothwell, Patrick Haggard

6 Citations (Scopus)

Abstract

We report six experiments suggesting that conscious perception is actively redrafted to take account of events both before and after the event that is reported. When observers saccade to a stationary object they overestimate its duration, as if the brain were filling in the saccadic gap with the post-saccadic image. We first demonstrate that this illusion holds for moving objects, implying that the perception of time, velocity, and distance traveled become discrepant. We then show that this discrepancy is partially resolved up to 500 ms after a saccade: the perceived offset position of a post-saccadic moving stimulus shows a greater forward mislocalization when pursued after a saccade than during pursuit alone. These data are consistent with the idea that the temporal bias is resolved by the subsequent spatial adjustment to provide a percept that is coherent in its gist but inconsistent in its detail.

Original language	English
Journal	Vision Research
Volume	46
Issue number	4
Pages (from-to)	545-55
Number of pages	11
ISSN	0042-6989
DOIs	https://doi.org/10.1016/j.visres.2005.04.019
Publication status	Published - 2006

Keywords

Adult
Female
Humans
Male
Motion Perception
Optical Illusions
Photic Stimulation
Psychomotor Performance
Saccades
Space Perception
Time Perception

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10.1016/j.visres.2005.04.019

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title = "Spatial consequences of bridging the saccadic gap",

abstract = "We report six experiments suggesting that conscious perception is actively redrafted to take account of events both before and after the event that is reported. When observers saccade to a stationary object they overestimate its duration, as if the brain were filling in the saccadic gap with the post-saccadic image. We first demonstrate that this illusion holds for moving objects, implying that the perception of time, velocity, and distance traveled become discrepant. We then show that this discrepancy is partially resolved up to 500 ms after a saccade: the perceived offset position of a post-saccadic moving stimulus shows a greater forward mislocalization when pursued after a saccade than during pursuit alone. These data are consistent with the idea that the temporal bias is resolved by the subsequent spatial adjustment to provide a percept that is coherent in its gist but inconsistent in its detail.",

keywords = "Adult, Female, Humans, Male, Motion Perception, Optical Illusions, Photic Stimulation, Psychomotor Performance, Saccades, Space Perception, Time Perception",

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year = "2006",

doi = "10.1016/j.visres.2005.04.019",

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pages = "545--55",

journal = "Vision Research",

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TY - JOUR

T1 - Spatial consequences of bridging the saccadic gap

AU - Yarrow, Kielan

AU - Whiteley, Louise Emma

AU - Rothwell, John C

AU - Haggard, Patrick

PY - 2006

Y1 - 2006

N2 - We report six experiments suggesting that conscious perception is actively redrafted to take account of events both before and after the event that is reported. When observers saccade to a stationary object they overestimate its duration, as if the brain were filling in the saccadic gap with the post-saccadic image. We first demonstrate that this illusion holds for moving objects, implying that the perception of time, velocity, and distance traveled become discrepant. We then show that this discrepancy is partially resolved up to 500 ms after a saccade: the perceived offset position of a post-saccadic moving stimulus shows a greater forward mislocalization when pursued after a saccade than during pursuit alone. These data are consistent with the idea that the temporal bias is resolved by the subsequent spatial adjustment to provide a percept that is coherent in its gist but inconsistent in its detail.

AB - We report six experiments suggesting that conscious perception is actively redrafted to take account of events both before and after the event that is reported. When observers saccade to a stationary object they overestimate its duration, as if the brain were filling in the saccadic gap with the post-saccadic image. We first demonstrate that this illusion holds for moving objects, implying that the perception of time, velocity, and distance traveled become discrepant. We then show that this discrepancy is partially resolved up to 500 ms after a saccade: the perceived offset position of a post-saccadic moving stimulus shows a greater forward mislocalization when pursued after a saccade than during pursuit alone. These data are consistent with the idea that the temporal bias is resolved by the subsequent spatial adjustment to provide a percept that is coherent in its gist but inconsistent in its detail.

KW - Adult

KW - Female

KW - Humans

KW - Male

KW - Motion Perception

KW - Optical Illusions

KW - Photic Stimulation

KW - Psychomotor Performance

KW - Saccades

KW - Space Perception

KW - Time Perception

U2 - 10.1016/j.visres.2005.04.019

DO - 10.1016/j.visres.2005.04.019

M3 - Journal article

C2 - 16005489

SN - 0042-6989

VL - 46

SP - 545

EP - 555

JO - Vision Research

JF - Vision Research

IS - 4

ER -

Spatial consequences of bridging the saccadic gap

Abstract

Keywords

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