Orientation and direction-of-motion response in the middle temporal visual area (MT) of New World owl monkeys as revealed by intrinsic-signal optical imaging
文献类型：期刊论文
| 作者 | Lu, Haidong D.
|
| 刊名 | FRONTIERS IN NEUROANATOMY
 |
| 出版日期 | 2010 |
| 卷号 | 4页码:23-23 |
| 关键词 | orientation columns cortical modules visual cortex direction-of-motion columns primates |
| ISSN号 | 1662-5129 |
| 通讯作者 | Kaas, JH (reprint author), Vanderbilt Univ, Dept Psychol, 301 Wilson Hall,111 21st Ave S, Nashville, TN 37203 USA,jon.h.kaas@vanderbilt.edu |
| 英文摘要 | Intrinsic-signal optical imaging was used to evaluate relationships of domains of neurons in middle temporal visual area (MT) selective for stimulus orientation and direction-of-motion. Maps of activation were elicited in MT of owl monkeys by gratings drifting back-and-forth, flashed stationary gratings and unidirectionally drifting fields of random dots. Drifting gratings, typically used to reveal orientation preference domains, contain a motion component that may be represented in MT. Consequently, this stimulus could activate groups of cells responsive to the motion of the grating, its orientation or a combination of both. Domains elicited from either moving or static gratings were remarkably similar, indicating that these groups of cells are responding to orientation, although they may also encode information about motion. To assess the relationship between domains defined by drifting oriented gratings and those responsive to direction-of-motion, the response to drifting fields of random dots was measured within domains defined from thresholded maps of activation elicited by the drifting gratings. The optical response elicited by drifting fields of random dots was maximal in a direction orthogonal to the map of orientation preference. Thus, neurons in domains selective for stimulus orientation are also selective for motion orthogonal to the preferred stimulus orientation. |
| 学科主题 | Anatomy & Morphology ; Neurosciences & Neurology |
| 收录类别 | SCI |
| 资助信息 | National Eye Institute[EY002686, EY11744, DA023002, T32 EY007135] |
| 语种 | 英语 |
| 公开日期 | 2012-07-13 |
| 源URL | [http://ir.sibs.ac.cn/handle/331001/1587]  |
| 专题 | 上海神经科学研究所_神经所(总) 上海神经科学研究所_脑功能成像研究组 上海神经科学研究所_脑成像研究组 |
| 推荐引用方式 GB/T 7714 | Lu, Haidong D.. Orientation and direction-of-motion response in the middle temporal visual area (MT) of New World owl monkeys as revealed by intrinsic-signal optical imaging[J]. FRONTIERS IN NEUROANATOMY,2010,4:23-23. |
| APA | Lu, Haidong D..(2010).Orientation and direction-of-motion response in the middle temporal visual area (MT) of New World owl monkeys as revealed by intrinsic-signal optical imaging.FRONTIERS IN NEUROANATOMY,4,23-23. |
| MLA | Lu, Haidong D.."Orientation and direction-of-motion response in the middle temporal visual area (MT) of New World owl monkeys as revealed by intrinsic-signal optical imaging".FRONTIERS IN NEUROANATOMY 4(2010):23-23. |
入库方式： OAI收割
来源：上海神经科学研究所
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