The optical-geometrical characteristics and thresholds of perception of fragmented outline figures

Merkuliev, A. and Shelepin, Yuri and Chikhman, V. N. and Pronin, Sergey and Foreman, Nigel (2005) The optical-geometrical characteristics and thresholds of perception of fragmented outline figures. Neuroscience and behavioural physiology, 35 (1). pp. 83-87. ISSN 0097-0549

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Official URL: http://dx.doi.org/10.1023/B:NEAB.0000049654.31828....

Abstract

Measurements were made of the threshold of recognition of cumulatively forming line figures. The threshold value of the outline, expressed in pixels, depended on the length of the outline of the whole unfragmented figure. Relative threshold values were constant, and for the measures of figure fragments used in the present study, averaged 12.5%. A spatial frequency analysis of the test images was performed. Variation of the amplitude-frequency parameters of the spectra of the images of various figures with threshold fragmentation was minimal as compared with the variation of these parameters in figures with subthreshold or suprathreshold levels of fragmentation.

Item Type:Article
Research Areas:School of Health and Education > Health & Education
ID Code:5738
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Deposited On:24 May 2010 05:38
Last Modified:19 Jun 2013 06:42

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