The right parietal lobe is critical for visual working memory
The right parietal lobe is critical for visual working memory
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DOI：
10.1016/j.neuropsychologia.2008.01.009
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发表时间：
2008-01-01
期刊：
影响因子：
2.6
通讯作者：
Olson, Ingrid R.
中科院分区：
文献类型：
--
作者：
Berryhill, Marian E.;Olson, Ingrid R.
视觉工作记忆（VWM）允许在短暂的延迟（如伴随眼球运动的延迟）中保持物体的身份及其位置。最近的神经影像学研究强调了后顶叶在这一过程中的作用，尽管这种参与VWM的具体性质仍然存在争议。神经影像学研究结果表明，顶叶可能有一个一般的作用，在记住各种类型的视觉信息，而神经心理学研究结果表明，顶叶参与主要是与运动空间注意和空间记忆。在本研究中，患者单侧右顶叶损伤，缺乏忽视的症状，在几个VWM旧/新的识别任务进行了测试。顶叶损伤导致所有VWM任务的表现受损，包括空间，对象和对象/空间连接任务。在几个刺激类别中都发现了赤字。这些结果为神经影像学结果提供了神经心理学支持，更普遍地表明顶叶在不同形式的VWM中起着普遍作用。(c)2008爱思唯尔有限公司保留所有权利。
Visual working memory (VWM) permits the maintenance of object identities and their locations across brief delays such as those accompanying eye movements. Recent neuroimaging studies have emphasized the role of the posterior parietal lobe in this process although the specific nature of this involvement in VWM remains controversial. Neuroimaging findings suggest that the parietal lobe may have a general role in remembering various types of visual information whereas neuropsychological findings suggest that parietal involvement is primarily related to motor spatial attention and spatial memory. In the present study, patients with unilateral right parietal lobe damage, lacking symptoms of neglect, were tested in several VWM old/new recognition tasks. Parietal damage lead to impaired performance on all VWM tasks, including spatial, object, and object/spatial conjunction tasks. Deficits were found across several stimulus categories. These results provide neuropsychological support for neuroimaging results, and more generally indicate that the parietal lobe serves a general role in diverse forms of VWM. (c) 2008 Elsevier Ltd. All rights reserved.