Spatial mislocalization as a consequence of sequential coding of stimuli

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Spatial mislocalization as a consequence of sequential coding of stimuli. / Priess, Heinz-Werner; Scharlau, Ingrid; Becker, Stephanie I. et al.
In: Attention, Perception & Psychophysics, Vol. 74, No. 2, 02.2012, p. 365-378.

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Priess HW, Scharlau I, Becker SI, Ansorge U. Spatial mislocalization as a consequence of sequential coding of stimuli. Attention, Perception & Psychophysics. 2012 Feb;74(2):365-378. doi: 10.3758/s13414-011-0239-y

Bibtex

@article{e7f0d069317748959917d6eed3534cf9,
title = "Spatial mislocalization as a consequence of sequential coding of stimuli",
abstract = "In three experiments, we tested whether sequentially coding two visual stimuli can create a spatial misperception of a visual moving stimulus. In Experiment 1, we showed that a spatial misperception, the flash-lag effect, is accompanied by a similar temporal misperception of first perceiving the flash and only then a change of the moving stimulus, when in fact the two events were exactly simultaneous. In Experiment 2, we demonstrated that when the spatial misperception of a flash-lag effect is absent, the temporal misperception is also absent. In Experiment 3, we extended these findings and showed that if the stimulus conditions require coding first a flash and subsequently a nearby moving stimulus, a spatial flash-lag effect is found, with the position of the moving stimulus being misperceived as shifted in the direction of its motion, whereas this spatial misperception is reversed so that the moving stimulus is misperceived as shifted in a direction opposite to its motion when the conditions require coding first the moving stimulus and then the flash. Together, the results demonstrate that sequential coding of two stimuli can lead to a spatial misperception whose direction can be predicted from the order of coding the moving object versus the flash. We propose an attentional sequential-coding explanation for the flash-lag effect and discuss its explanatory power with respect to related illusions (e.g., the Fr{\"o}hlich effect) and other explanations.",
keywords = "Psychology, Attention, Prior entry, Visual illusions",
author = "Heinz-Werner Priess and Ingrid Scharlau and Becker, {Stephanie I.} and Ulrich Ansorge",
year = "2012",
month = feb,
doi = "10.3758/s13414-011-0239-y",
language = "English",
volume = "74",
pages = "365--378",
journal = "Attention, Perception & Psychophysics",
issn = "1943-3921",
publisher = "Springer New York",
number = "2",

}

RIS

TY - JOUR

T1 - Spatial mislocalization as a consequence of sequential coding of stimuli

AU - Priess, Heinz-Werner

AU - Scharlau, Ingrid

AU - Becker, Stephanie I.

AU - Ansorge, Ulrich

PY - 2012/2

Y1 - 2012/2

N2 - In three experiments, we tested whether sequentially coding two visual stimuli can create a spatial misperception of a visual moving stimulus. In Experiment 1, we showed that a spatial misperception, the flash-lag effect, is accompanied by a similar temporal misperception of first perceiving the flash and only then a change of the moving stimulus, when in fact the two events were exactly simultaneous. In Experiment 2, we demonstrated that when the spatial misperception of a flash-lag effect is absent, the temporal misperception is also absent. In Experiment 3, we extended these findings and showed that if the stimulus conditions require coding first a flash and subsequently a nearby moving stimulus, a spatial flash-lag effect is found, with the position of the moving stimulus being misperceived as shifted in the direction of its motion, whereas this spatial misperception is reversed so that the moving stimulus is misperceived as shifted in a direction opposite to its motion when the conditions require coding first the moving stimulus and then the flash. Together, the results demonstrate that sequential coding of two stimuli can lead to a spatial misperception whose direction can be predicted from the order of coding the moving object versus the flash. We propose an attentional sequential-coding explanation for the flash-lag effect and discuss its explanatory power with respect to related illusions (e.g., the Fröhlich effect) and other explanations.

AB - In three experiments, we tested whether sequentially coding two visual stimuli can create a spatial misperception of a visual moving stimulus. In Experiment 1, we showed that a spatial misperception, the flash-lag effect, is accompanied by a similar temporal misperception of first perceiving the flash and only then a change of the moving stimulus, when in fact the two events were exactly simultaneous. In Experiment 2, we demonstrated that when the spatial misperception of a flash-lag effect is absent, the temporal misperception is also absent. In Experiment 3, we extended these findings and showed that if the stimulus conditions require coding first a flash and subsequently a nearby moving stimulus, a spatial flash-lag effect is found, with the position of the moving stimulus being misperceived as shifted in the direction of its motion, whereas this spatial misperception is reversed so that the moving stimulus is misperceived as shifted in a direction opposite to its motion when the conditions require coding first the moving stimulus and then the flash. Together, the results demonstrate that sequential coding of two stimuli can lead to a spatial misperception whose direction can be predicted from the order of coding the moving object versus the flash. We propose an attentional sequential-coding explanation for the flash-lag effect and discuss its explanatory power with respect to related illusions (e.g., the Fröhlich effect) and other explanations.

KW - Psychology

KW - Attention

KW - Prior entry

KW - Visual illusions

UR - http://www.scopus.com/inward/record.url?scp=84857564595&partnerID=8YFLogxK

U2 - 10.3758/s13414-011-0239-y

DO - 10.3758/s13414-011-0239-y

M3 - Journal articles

C2 - 22090187

VL - 74

SP - 365

EP - 378

JO - Attention, Perception & Psychophysics

JF - Attention, Perception & Psychophysics

SN - 1943-3921

IS - 2

ER -

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