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The time course of contrast adaptation measured with a new method: Detection of ramped contrast
Dong, Xue1; Engel, Stephen A.2; Bao, Min1
2014
Source PublicationPERCEPTION
ISSN0301-0066
SubtypeArticle
Volume43Issue:5Pages:427-437
AbstractThe present study introduces a new method to measure contrast detection thresholds before and after adaptation to contrast. A sinusoidal testing grating increased contrast at a constant rate from an initial subthreshold level. Subjects indicated when the grating was just visible, which terminated its presentation. The stimulus contrast at the time of response was taken as a measure of relative threshold. We used the method to measure the time courses of changes in threshold following adaptation, for several adapting contrasts (9, 19, 29, or 39 dB, ref. 1%) and adapting durations (10, 100, or 1000 s). The buildup and decay of adaptation to contrast was described well by a power function of time. These results agree with previous findings, but are more efficient in terms of subject time. This method promises to be a useful tool for studying the dynamics of adaptation to spatial contrast.
Keywordcontrast adaptation ramp detection
Indexed BySSCI
Language英语
WOS IDWOS:000339229800006
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/14162
Collection中国科学院行为科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China
2.Univ Minnesota, Dept Psychol, Minneapolis, MN 55455 USA
Recommended Citation
GB/T 7714
Dong, Xue,Engel, Stephen A.,Bao, Min. The time course of contrast adaptation measured with a new method: Detection of ramped contrast[J]. PERCEPTION,2014,43(5):427-437.
APA Dong, Xue,Engel, Stephen A.,&Bao, Min.(2014).The time course of contrast adaptation measured with a new method: Detection of ramped contrast.PERCEPTION,43(5),427-437.
MLA Dong, Xue,et al."The time course of contrast adaptation measured with a new method: Detection of ramped contrast".PERCEPTION 43.5(2014):427-437.
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