Correlation and letter recognition

Used correlation functions obtained in 2 experiments with undergraduate Os (N = 10) as a basis for describing human visual letter recognition. Visual images were filtered by means of autocorrelation for pattern information. This operation gave the relative visibilities or legibilities of the charact...

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Bibliographic Details
Published in:Canadian Journal of Psychology 1973-09, Vol.27 (3), p.317-326
Main Authors: Engel, G. R, Dougherty, W. C, Jones, G. Brian
Format: Article
Language:English
Subjects:
Discrimination (Psychology)
Form Perception
Human
Humans
Information Theory
Letters (Alphabet)
Mathematics
Memory
Models, Theoretical
Statistical Correlation
Statistics as Topic
Visual Perception
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Description
Summary:Used correlation functions obtained in 2 experiments with undergraduate Os (N = 10) as a basis for describing human visual letter recognition. Visual images were filtered by means of autocorrelation for pattern information. This operation gave the relative visibilities or legibilities of the characters. The visual impressions were then cross-correlated with a set of memory records whose outputs described the relative probabilities that the stimulus was a given character. This operation described confusion errors. Finally "response bias" was described in terms of the reliability with which a memory record provides identification of a given stimulus. In these terms response bias represented an attempt by the recognition system to minimize errors in high-information responses, at the expense of producing more low-information responses as errors. (French summary)
ISSN:0008-4255
1196-1961
1878-7290
DOI:10.1037/h0082482