Abstract
Retinal acuity differences are shown to account substantially for identification errors resulting when members of a dimensionally defined letter set (p, b, q, d) are singly presented at fixed positions within the foveal field for reduced durations. The error pattern can be altered by shifting the fixation point as little as 12 min 9 sec of visual angle. However, when letter position varies, the error distribution reflects dimensional information structure.
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References
Eriksen, C. W., & Schultz, D. W. Retinal locus and acuity in visual information processing. Bulletin of the Psychonomic Society, 1977, 9, 81–84.
Garner, W. R., & Haun, F. Letter identification as a function of type of perceptual limitation and type of attribute. Journal of Experimental Psychology: Human Perception and Performance, in press.
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The research reported here was supported by Grant MH14229 from the National Institute of Mental Health to Yale University.
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Haun, F., Garner, W.R. Letter identification errors as a function of retinal input locus and positional variability. Bull. Psychon. Soc. 11, 209–211 (1978). https://doi.org/10.3758/BF03336810
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DOI: https://doi.org/10.3758/BF03336810