Reaction times to different spatial frequencies as a function of detectability

Simple reaction time to sine-wave gratings of 1, 4 and 10 c/deg was measured as a function of the detectability of the gratings. Reaction time increased with spatial frequency over a range of detectabilities. Assuming that equally detectable gratings produce equivalent levels of response in the visu...

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Veröffentlicht in:	Vision research (Oxford) 1986, Vol.26 (5), p.745-747
Hauptverfasser:	Gish, Kenneth, Shulman, Gordon L., Sheehy, J.B., Leibowitz, H.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Detectability Eye and associated structures. Visual pathways and centers. Vision Form Perception - physiology Fundamental and applied biological sciences. Psychology Humans Pattern Recognition, Visual - physiology Perceived contrast Perceptual latency Reaction time Reaction Time - physiology Spatial frequency Vertebrates: nervous system and sense organs
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Zusammenfassung:	Simple reaction time to sine-wave gratings of 1, 4 and 10 c/deg was measured as a function of the detectability of the gratings. Reaction time increased with spatial frequency over a range of detectabilities. Assuming that equally detectable gratings produce equivalent levels of response in the visual system, this increase in reaction time reflects an increase in perceptual latency as spatial frequency is increased.
ISSN:	0042-6989 1878-5646
DOI:	10.1016/0042-6989(86)90088-X