Abstract
A review of recent research concerning the effects of fill, distortion and noise on human pattern discrimination is presented. Studies wherein dot patterns, light-point patterns and/or patterns comprised of filled squares of various dimensions serving as stimuli are considered. The problems of quantifying stimulus (pattern) parameters and measuring their effects on pattern discrimination performance and the use of information concepts are discussed. Also, important related areas of interest where investigation is required are discussed as well as methods of eliciting more specific knowledge relating to pattern discrimination.
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