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DOI | 10.1038/s41467-018-05633-3 |
Adaptation decorrelates shape representations | |
Mattar, Marcelo G.1,5; Olkkonen, Maria2,3; Epstein, Russell A.1; Aguirre, Geoffrey K.4 | |
2018-09-19 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England; Finland |
英文摘要 | Perception and neural responses are modulated by sensory history. Visual adaptation, an example of such an effect, has been hypothesized to improve stimulus discrimination by decorrelating responses across a set of neural units. While a central theoretical model, behavioral and neural evidence for this theory is limited and inconclusive. Here, we use a parametric 3D shape-space to test whether adaptation decorrelates shape representations in humans. In a behavioral experiment with 20 subjects, we find that adaptation to a shape class improves discrimination of subsequently presented stimuli with similar features. In a BOLD fMRI experiment with 10 subjects, we observe that adaptation to a shape class decorrelates the multivariate representations of subsequently presented stimuli with similar features in object-selective cortex. These results support the long-standing proposal that adaptation improves perceptual discrimination and decorrelates neural representations, offering insights into potential underlying mechanisms. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000445029700003 |
WOS关键词 | PRIMARY VISUAL-CORTEX ; NEURAL ADAPTATION ; FUSIFORM CORTEX ; DISCRIMINATION ; BRAIN ; INFORMATION ; REPETITION ; ROBUST ; REGISTRATION ; TIMESCALES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203927 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Penn, Dept Psychol, 3815 Walnut St, Philadelphia, PA 19104 USA; 2.Univ Durham, Dept Psychol, Durham DH1 3LE, England; 3.Univ Helsinki, Dept Psychol & Logoped, Fac Med, FIN-00014 Helsinki, Finland; 4.Univ Penn, Dept Neurol, Philadelphia, PA 19104 USA; 5.Princeton Univ, Princeton Neurosci Inst, Princeton, NJ 08544 USA |
推荐引用方式 GB/T 7714 | Mattar, Marcelo G.,Olkkonen, Maria,Epstein, Russell A.,et al. Adaptation decorrelates shape representations[J]. NATURE COMMUNICATIONS,2018,9. |
APA | Mattar, Marcelo G.,Olkkonen, Maria,Epstein, Russell A.,&Aguirre, Geoffrey K..(2018).Adaptation decorrelates shape representations.NATURE COMMUNICATIONS,9. |
MLA | Mattar, Marcelo G.,et al."Adaptation decorrelates shape representations".NATURE COMMUNICATIONS 9(2018). |
条目包含的文件 | 条目无相关文件。 |
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