Spatiotemporal filters in the detection of background modulation targets

A M McKendrick; D R Badcock; A J Vingrys

doi:10.1364/josaa.17.000836

Spatiotemporal filters in the detection of background modulation targets

A M McKendrick, D R Badcock, A J Vingrys

School of Psychological Science

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

4 Citations (Scopus)

Abstract

The background modulation method has been proposed as a useful test of early visual mechanisms [Biol. Cybern. 37, 77 (1980); Biol. Cybern. 47, 173 (1983)]. The task involves measuring detection thresholds for a luminous spot (increment) drifting over a spatially or temporally modulated background. The study explores the nature of the detecting mechanism in terms of spatial and temporal filters for both spatial and temporal background modulations. In both cases we find that thresholds can be explained by spatial contrast cues generated by the moving spot and that their spatiotemporal characteristics suggest detection by magnocellular processes.

Original language	English
Pages (from-to)	836-845
Number of pages	10
Journal	Journal of the Optical Society of America A
Volume	17
Issue number	5
DOIs	https://doi.org/10.1364/josaa.17.000836
Publication status	Published - May 2000

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title = "Spatiotemporal filters in the detection of background modulation targets",

abstract = "The background modulation method has been proposed as a useful test of early visual mechanisms [Biol. Cybern. 37, 77 (1980); Biol. Cybern. 47, 173 (1983)]. The task involves measuring detection thresholds for a luminous spot (increment) drifting over a spatially or temporally modulated background. The study explores the nature of the detecting mechanism in terms of spatial and temporal filters for both spatial and temporal background modulations. In both cases we find that thresholds can be explained by spatial contrast cues generated by the moving spot and that their spatiotemporal characteristics suggest detection by magnocellular processes.",

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year = "2000",

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AU - Badcock, D R

AU - Vingrys, A J

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N2 - The background modulation method has been proposed as a useful test of early visual mechanisms [Biol. Cybern. 37, 77 (1980); Biol. Cybern. 47, 173 (1983)]. The task involves measuring detection thresholds for a luminous spot (increment) drifting over a spatially or temporally modulated background. The study explores the nature of the detecting mechanism in terms of spatial and temporal filters for both spatial and temporal background modulations. In both cases we find that thresholds can be explained by spatial contrast cues generated by the moving spot and that their spatiotemporal characteristics suggest detection by magnocellular processes.

AB - The background modulation method has been proposed as a useful test of early visual mechanisms [Biol. Cybern. 37, 77 (1980); Biol. Cybern. 47, 173 (1983)]. The task involves measuring detection thresholds for a luminous spot (increment) drifting over a spatially or temporally modulated background. The study explores the nature of the detecting mechanism in terms of spatial and temporal filters for both spatial and temporal background modulations. In both cases we find that thresholds can be explained by spatial contrast cues generated by the moving spot and that their spatiotemporal characteristics suggest detection by magnocellular processes.

KW - Adult

KW - Contrast Sensitivity/physiology

KW - Cues

KW - Female

KW - Humans

KW - Models, Biological

KW - Photic Stimulation/methods

KW - Sensory Thresholds

KW - Space Perception/physiology

KW - Time Perception/physiology

KW - Vision, Ocular/physiology

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SP - 836

EP - 845

JO - Journal of the Optical Society of America A

JF - Journal of the Optical Society of America A

IS - 5

ER -

Spatiotemporal filters in the detection of background modulation targets

Abstract

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