The contrast sensitivity of human infants to gratings differing in duty cycle

Human infants' contrast thresholds for rectangular wave gratings differing in duty cycle were measured. The forced-choice preferential looking technique was used to estimate thresholds in fifteen 8-to 10-week old infants. The results indicated that contrast threshold varied systematically with...

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Bibliographic Details
Published inVision research (Oxford) Vol. 22; no. 7; pp. 739 - 744
Main Authors Banks, Martin S., Stephens, Benjamin R.
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 1982
Subjects
Form Perception - physiology
Humans
Infant
Models, Biological
Pattern Recognition, Visual - physiology
Sensory Thresholds - physiology
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Summary:Human infants' contrast thresholds for rectangular wave gratings differing in duty cycle were measured. The forced-choice preferential looking technique was used to estimate thresholds in fifteen 8-to 10-week old infants. The results indicated that contrast threshold varied systematically with duty cycle. Our findings were consistent with the predictions of a linear, multiple channel model and one version of a linear, single channel model but were inconsistent with the predictions of a contour density and another version of a single channel model.
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SourceType-Scholarly Journals-1
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ISSN:0042-6989
1878-5646
DOI:10.1016/0042-6989(82)90004-9