Psychophysical Evidence for Spatiotopic Processing in Area MT in a Short-Term Memory for Motion Task
文献类型：期刊论文
| 作者 | Zhang, Mingsha
|
| 刊名 | JOURNAL OF NEUROPHYSIOLOGY
 |
| 出版日期 | 2009 |
| 卷号 | 102期号:4页码:2435-2440 |
| 关键词 | SACCADIC EYE-MOVEMENTS LATERAL INTRAPARIETAL AREA SUPERIOR TEMPORAL SULCUS VISUAL-MOTION EXTRASTRIATE CORTEX MACAQUE MONKEY FIELD DIRECTION NEURONS REPRESENTATION |
| ISSN号 | 0022-3077 |
| 通讯作者 | Ong, WS (reprint author), Univ Calif Los Angeles, David Geffen Sch Med, Dept Neurobiol, POB 951763, Los Angeles, CA 90095 USA,weisong@ucla.edu |
| 英文摘要 | Ong WS, Hooshvar N, Zhang M, Bisley JW. Psychophysical evidence for spatiotopic processing in area MT in a short-term memory for motion task. J Neurophysiol 102: 2435-2440, 2009. First published August 19, 2009; doi:10.1152/jn.00684.2009. The middle temporal (MT) area has long been established as a cortical area involved in the encoding of motion information and has been thought to do so in retinotopic coordinates. It was previously shown that memory for motion has a spatial component by demonstrating that subjects do significantly worse on a match-to-sample task when the stimuli to be compared were spatially separated. The distance at which performance deteriorated (the critical spatial separation) increased at increasing eccentricities, suggesting that area MT was involved in the process. In this study, we asked whether optimal performance occurred when the stimuli were in the same retinotopic or spatiotopic coordinates. We found that the performance was best when the stimuli appeared in the same location in space rather than the same retinal location, after an eye movement. We also found that the relationship between retinal eccentricity and the critical spatial separation approximated that of area MT, as found previously. We conclude that area MT plays an important role in the memory for motion process and that this is carried out in spatiotopic coordinates. This conclusion supports the hypothesis that MT processing may have a spatiotopic component. |
| 学科主题 | Neurosciences & Neurology ; Physiology |
| 收录类别 | SCI |
| 资助信息 | Gerald Oppenheimer Family Foundation; Kirchgessner Foundation; Alfred P. Sloan Foundation; Dana and Keck Foundations |
| 语种 | 英语 |
| 公开日期 | 2012-07-13 |
| 源URL | [http://ir.sibs.ac.cn/handle/331001/1638]  |
| 专题 | 上海神经科学研究所_神经所(总) 上海神经科学研究所_认知神经机制研究组 |
| 推荐引用方式 GB/T 7714 | Zhang, Mingsha. Psychophysical Evidence for Spatiotopic Processing in Area MT in a Short-Term Memory for Motion Task[J]. JOURNAL OF NEUROPHYSIOLOGY,2009,102(4):2435-2440. |
| APA | Zhang, Mingsha.(2009).Psychophysical Evidence for Spatiotopic Processing in Area MT in a Short-Term Memory for Motion Task.JOURNAL OF NEUROPHYSIOLOGY,102(4),2435-2440. |
| MLA | Zhang, Mingsha."Psychophysical Evidence for Spatiotopic Processing in Area MT in a Short-Term Memory for Motion Task".JOURNAL OF NEUROPHYSIOLOGY 102.4(2009):2435-2440. |
入库方式： OAI收割
来源：上海神经科学研究所
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