Dense sampling reveals behavioral oscillations in rapid visual categorization
文献类型：期刊论文
| 作者 | Drewes J[*]1; Zhu WN[*]2,3; Wutz A1; Melcher D1 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:X页码:e16290 |
| 通讯作者 | mail@jandrewes.de |
| 合作状况 | 其它 |
| 英文摘要 | Perceptual systems must create discrete objects and events out of a continuous flow of sensory information. Previous studies have demonstrated oscillatory effects in the behavioral outcome of low-level visual tasks, suggesting a cyclic nature of visual processing as the solution. To investigate whether these effects extend to more complex tasks, a stream of "neutral" photographic images (not containing targets) was rapidly presented (20 ms/image). Embedded were one or two presentations of a randomly selected target image (vehicles and animals). Subjects reported the perceived target category. On dual-presentation trials, the ISI varied systematically from 0 to 600 ms. At randomized timing before first target presentation, the screen was flashed with the intent of creating a phase reset in the visual system. Sorting trials by temporal distance between flash and first target presentation revealed strong oscillations in behavioral performance, peaking at 5 Hz. On dual-target trials, longer ISIs led to reduced performance, implying a temporal integration window for object category discrimination. The "animal" trials exhibited a significant oscillatory component around 5 Hz. Our results indicate that oscillatory effects are not mere fringe effects relevant only with simple stimuli, but are resultant from the core mechanisms of visual processing and may well extend into real-life scenarios. |
| 收录类别 | SCI |
| 资助信息 | This research was supported by a European Research Council (ERC) grant (grant agreement no. 313658) to DM. WZ was supported by a National Natural Science Foundation of China (62263042, 61005087), China Scholarship Council Grant. This collaboration was also supported by the Chinese State Administration of Foreign Experts Affairs (GDT20155300084) to JD and DM. |
| 语种 | 英语 |
| 源URL | [http://159.226.149.26:8080/handle/152453/9477]  |
| 专题 | 昆明动物研究所_认知障碍病理学 |
| 作者单位 | 1.Center for Mind/Brain Sciences (CIMeC), University of Trento Corso Bettini 31, 38068 Rovereto TN, Italy 2.School of Information Science, Yunnan University Cuihu Beilu, Kunming 650091, China 3.Kunming Institute of Zoology Chinese Academy of Sciences, 32 Jiaochang Donglu, Kunming 650223, China |
| 推荐引用方式 GB/T 7714 | Drewes J[*],Zhu WN[*],Wutz A,et al. Dense sampling reveals behavioral oscillations in rapid visual categorization[J]. SCIENTIFIC REPORTS,2015,5(X):e16290. |
| APA | Drewes J[*],Zhu WN[*],Wutz A,&Melcher D.(2015).Dense sampling reveals behavioral oscillations in rapid visual categorization.SCIENTIFIC REPORTS,5(X),e16290. |
| MLA | Drewes J[*],et al."Dense sampling reveals behavioral oscillations in rapid visual categorization".SCIENTIFIC REPORTS 5.X(2015):e16290. |
入库方式： OAI收割
来源：昆明动物研究所
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