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...
Saved in:
Published in | Vision research (Oxford) Vol. 22; no. 7; pp. 739 - 744 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
England
Elsevier Ltd
1982
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
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. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0042-6989 1878-5646 |
DOI: | 10.1016/0042-6989(82)90004-9 |