An electrophysiological measure of access to representations in visual working memory.
An electrophysiological measure of access to representations in visual working memory.
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DOI：
10.1111/j.1469-8986.2009.00879.x
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发表时间：
2010-01-01
期刊：
影响因子：
3.7
通讯作者：
Kiss M
中科院分区：
文献类型：
--
作者：
Eimer M;Kiss M
先前的研究表明，工作记忆中视觉信息的维持与持续的后侧对侧负性有关。本研究表明，在视觉工作记忆的空间选择性访问过程中，这一成分也被激发出来。参与者记住了一个双侧视觉搜索数组，其中包含左侧和右侧的两个潜在目标。任务相关侧通过后提示进行信号传递，后提示在阵列偏移150毫秒后或更长的间隔（700-1000毫秒）后呈现。在被提示的对侧的后侧电极上，对早期和晚期的后提示都有增强的负性反应，这表明它们不仅反映了记忆的维持，而且反映了访问存储的视觉工作记忆表征的过程。结果为视觉工作记忆的视网膜组织提供了新的电生理证据。
Previous research has demonstrated that the maintenance of visual information in working memory is associated with a sustained posterior contralateral negativity. Here we show that this component is also elicited during the spatially selective access to visual working memory. Participants memorized a bilateral visual search array that contained two potential targets on the left and right side. The task-relevant side was signalled by post-cues that were presented either 150 ms after array offset or after a longer interval (700–1000 ms). Enhanced negativities at posterior electrodes contralateral to the cued side of a target were elicited in response to both early and late post-cues, suggesting that they reflect not only memory maintenance, but also processes involved in the access to stored visual working memory representations. Results provide new electrophysiological evidence for the retinotopic organisation of visual working memory.
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DOI：
10.1016/0013-4694(96)95711-9
发表时间：
1996-09-01
期刊：
ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
影响因子：
--
作者：
Eimer, M
通讯作者：
Eimer, M
影响因子：
3.6
作者：
McCollough, Andrew W.;Machizawa, Maro G.;Vogel, Edward K.
通讯作者：
Vogel, Edward K.
影响因子：
1.7
作者：
Klaver, P;Talsma, D;Mulder, G
通讯作者：
Mulder, G
影响因子：
3.2
作者：
Nobre, AC;Coull, JT;Mesulam, MM
通讯作者：
Mesulam, MM
影响因子：
3.7
作者：
Dell'Acqua, R.;Sessa, P.;Robitaille, N.
通讯作者：
Robitaille, N.