Temporal recruitment along the trajectory of moving objects and the perception of position

Bart Krekelberg; Markus Lappe

doi:10.1016/S0042-6989(98)00287-9

Temporal recruitment along the trajectory of moving objects and the perception of position

Bart Krekelberg
, Markus Lappe

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

75 Scopus citations

Abstract

The trajectory of a moving object provides information about its velocity, direction and position. This information can be used to enhance the visual system's ability to detect changes in these parameters. We show that the visibility of the trajectory of a moving object influences the perception of its position. This form of temporal recruitment builds up on a long timescale of approximately 500 ms. Temporary occlusion of the trajectory during this time period reduces recruitment, but does not abolish it. Moreover, we found no spatial restrictions on recruitment on the scale of 10°of arc. When the position of objects on trajectories with different degrees of visibility are compared, this recruitment effect causes spatial offsets. This leads to a visual illusion in which the position of moving objects is misperceived.

Original language	American English
Pages (from-to)	2669-2679
Number of pages	11
Journal	Vision Research
Volume	39
Issue number	16
DOIs	https://doi.org/10.1016/S0042-6989(98)00287-9
State	Published - Aug 1999
Externally published	Yes

ASJC Scopus subject areas

Ophthalmology
Sensory Systems

Keywords

Alignment
Human visual psychophysics
Perceptual illusion
Recruitment
Stroboscopic motion

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10.1016/S0042-6989(98)00287-9

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title = "Temporal recruitment along the trajectory of moving objects and the perception of position",

abstract = "The trajectory of a moving object provides information about its velocity, direction and position. This information can be used to enhance the visual system's ability to detect changes in these parameters. We show that the visibility of the trajectory of a moving object influences the perception of its position. This form of temporal recruitment builds up on a long timescale of approximately 500 ms. Temporary occlusion of the trajectory during this time period reduces recruitment, but does not abolish it. Moreover, we found no spatial restrictions on recruitment on the scale of 10°of arc. When the position of objects on trajectories with different degrees of visibility are compared, this recruitment effect causes spatial offsets. This leads to a visual illusion in which the position of moving objects is misperceived.",

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AU - Lappe, Markus

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N2 - The trajectory of a moving object provides information about its velocity, direction and position. This information can be used to enhance the visual system's ability to detect changes in these parameters. We show that the visibility of the trajectory of a moving object influences the perception of its position. This form of temporal recruitment builds up on a long timescale of approximately 500 ms. Temporary occlusion of the trajectory during this time period reduces recruitment, but does not abolish it. Moreover, we found no spatial restrictions on recruitment on the scale of 10°of arc. When the position of objects on trajectories with different degrees of visibility are compared, this recruitment effect causes spatial offsets. This leads to a visual illusion in which the position of moving objects is misperceived.

AB - The trajectory of a moving object provides information about its velocity, direction and position. This information can be used to enhance the visual system's ability to detect changes in these parameters. We show that the visibility of the trajectory of a moving object influences the perception of its position. This form of temporal recruitment builds up on a long timescale of approximately 500 ms. Temporary occlusion of the trajectory during this time period reduces recruitment, but does not abolish it. Moreover, we found no spatial restrictions on recruitment on the scale of 10°of arc. When the position of objects on trajectories with different degrees of visibility are compared, this recruitment effect causes spatial offsets. This leads to a visual illusion in which the position of moving objects is misperceived.

KW - Alignment

KW - Human visual psychophysics

KW - Perceptual illusion

KW - Recruitment

KW - Stroboscopic motion

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DO - 10.1016/S0042-6989(98)00287-9

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JO - Vision Research

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Temporal recruitment along the trajectory of moving objects and the perception of position

Abstract

ASJC Scopus subject areas

Keywords

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