Broad bandwidth of perceptual learning in second-order contrast modulation detection
文献类型：期刊论文
| 作者 | Zhou, Jiawei1,2; Yan, Fangfang1,3; Lu, Zhong-Lin4; Zhou, Yifeng2; Xi, Jie1 ; Huang, Chang-Bing1
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| 刊名 | JOURNAL OF VISION
 |
| 出版日期 | 2015 |
| 卷号 | 15期号:2页码:1-10 |
| 关键词 | second-order modulation detection perceptual learning modulation sensitivity generalizability specificity |
| ISSN号 | 1534-7362 |
| 英文摘要 | Comparing characteristics of learning in first- and second-order systems might inform us about different neural plasticity in the two systems. In the current study, we aim to determine the properties of perceptual learning in second-order contrast modulation detection in normal adults. We trained nine observers to detect second-order gratings at an envelope modulation spatial frequency of 8 cycles/8 with their nondominant eyes. We found that, although training generated the largest improvements around the trained frequency, contrast sensitivity over a broad range of spatial frequencies also improved, with a 4.09-octave bandwidth of perceptual learning, exhibiting specificity to the trained spatial frequency as well as a relatively large degree of generalization. The improvements in the modulation sensitivity function (MSF) were not significantly different between the trained and untrained eyes. Furthermore, training did not significantly change subjects' ability in detecting firstorder gratings. Our results suggest that perceptual learning in second-order detection might occur at the postchannel level in binocular neurons, possibly through reducing the internal noise of the visual system. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350679800020 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/13501]  |
| 专题 | 心理研究所_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 Sci & Technol China, Sch Life Sci, Key Lab Brain Funct & Dis, Hefei 230026, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Ohio State Univ, Dept Psychol, Lab Brain Proc, Columbus, OH 43210 USA |
| 推荐引用方式 GB/T 7714 | Zhou, Jiawei,Yan, Fangfang,Lu, Zhong-Lin,et al. Broad bandwidth of perceptual learning in second-order contrast modulation detection[J]. JOURNAL OF VISION,2015,15(2):1-10. |
| APA | Zhou, Jiawei,Yan, Fangfang,Lu, Zhong-Lin,Zhou, Yifeng,Xi, Jie,&Huang, Chang-Bing.(2015).Broad bandwidth of perceptual learning in second-order contrast modulation detection.JOURNAL OF VISION,15(2),1-10. |
| MLA | Zhou, Jiawei,et al."Broad bandwidth of perceptual learning in second-order contrast modulation detection".JOURNAL OF VISION 15.2(2015):1-10. |
入库方式： OAI收割
来源：心理研究所
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