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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 | |
摘要 | The 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. |
关键词 | contrast adaptation ramp detection |
2014 | |
语种 | 英语 |
发表期刊 | PERCEPTION |
ISSN | 0301-0066 |
卷号 | 43期号:5页码:427-437 |
期刊论文类型 | Article |
收录类别 | SSCI |
WOS记录号 | WOS:000339229800006 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.psych.ac.cn/handle/311026/14162 |
专题 | 中国科学院行为科学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China 2.Univ Minnesota, Dept Psychol, Minneapolis, MN 55455 USA |
第一作者单位 | 中国科学院行为科学重点实验室 |
推荐引用方式 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. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
WOS_000339229800006.(755KB) | 期刊论文 | 出版稿 | 暂不开放 | CC BY-NC-SA | 请求全文 |
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