The use of different cues in vernier acuity

The roles of the various cues in the traditional vernier target are examined. We conclude that there are at least two mechanisms by which vernier acuities of the order of 5 sec arc may be obtained. The two cues are the overall slope of the target, and the relative positional differences. By using ve...

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Bibliographic Details
Published inVision research (Oxford) Vol. 23; no. 10; pp. 991 - 995
Main Authors Watt, R.J., Morgan, M.J., Ward, R.M.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 1983
Elsevier Science
Subjects
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Humans
Male
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Rotation
Sensory Thresholds - physiology
Space life sciences
Space Perception - physiology
Vernier Corner blur Orthoaxial position Orientation
Vision
Visual Acuity
Vernier Corner blur Orthoaxial position Orientation
Vernier acuity
Human
Information processing
Spatial orientation
Visual acuity
Perception
Binocular vision
Psychophysics
Signal detection
Stimulus position
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Summary:The roles of the various cues in the traditional vernier target are examined. We conclude that there are at least two mechanisms by which vernier acuities of the order of 5 sec arc may be obtained. The two cues are the overall slope of the target, and the relative positional differences. By using vernier targets that are degraded in two different ways, we can demonstrate each mechanism.
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SourceType-Scholarly Journals-1
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ISSN:0042-6989
1878-5646
DOI:10.1016/0042-6989(83)90009-3