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

CORC > 上海神经科学研究所 > 中国科学院上海生命科学研究院神经科学研究所 > 神经所(总)

	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
	Lu, Haidong D.
刊名	FRONTIERS IN NEUROANATOMY
	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
内容类型	期刊论文
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.