1995
DOI: 10.1113/jphysiol.1995.sp020726
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Contributions of human long‐wave and middle‐wave cones to motion detection.

Abstract: 1. It has been suggested that motion may be best detected by the luminance mechanism. If this is the most sensitive mechanism, motion thresholds may be used to isolate the luminance mechanism and study its properties.

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Cited by 91 publications
(71 citation statements)
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“…However, they argued that this masking e¡ect did not re£ect the activity of a mechanism jointly sensitive to chromatic and luminance variations, but rather could be attributed to a residual luminance response of a colour-opponent mechanism caused by a di¡erence in processing times of red and green signals (see Stromeyer et al 1995). This explanation cannot account for our results.…”
Section: Resultsmentioning
confidence: 65%
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“…However, they argued that this masking e¡ect did not re£ect the activity of a mechanism jointly sensitive to chromatic and luminance variations, but rather could be attributed to a residual luminance response of a colour-opponent mechanism caused by a di¡erence in processing times of red and green signals (see Stromeyer et al 1995). This explanation cannot account for our results.…”
Section: Resultsmentioning
confidence: 65%
“…This explanation cannot account for our results. At the low-stimulus temporal frequencies used in this study, there is good evidence to suggest that any di¡erences in processing time between red and green signals within colour-opponent units would be too small to initiate a luminance response (Stromeyer et al 1995).…”
Section: Resultsmentioning
confidence: 76%
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“…Does this discrepancy resemble the differences that have been reported between detection and identification for isoluminant stimuli? [48][49][50][51][52][53][54] Clearly not; there are qualitative differences between chromatically detected (cone) motion and rod-detected motion. The threshold ratios we observed for rod stimuli of ϳ2.0 for 0.5-Hz stimuli are similar to what is found for foveal isoluminant stimuli, 53,57 not for peripheral isoluminant stimuli.…”
Section: Discussionmentioning
confidence: 97%
“…If stimuli are defined by color, then the threshold for detection is significantly lower than the threshold for identification of direction of motion. [48][49][50][51][52][53][54] This is particularly the case for slowly moving stimuli, for stimuli displayed in the peripheral visual field, or for briefly presented stimuli. Chromatic signals seem to feed through different mechanisms for pattern and motion.…”
Section: Experiments 1: Direction Discriminationmentioning
confidence: 99%