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首页> 外文期刊>Neuron >Tracking the Mind's Image in the Brain II. Transcranial Magnetic Stimulation Reveals Parietal Asymmetry in Visuospatial Imagery.
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Tracking the Mind's Image in the Brain II. Transcranial Magnetic Stimulation Reveals Parietal Asymmetry in Visuospatial Imagery.

机译：跟踪大脑中的思维意象II。经颅磁刺激揭示了视觉空间图像中的顶叶不对称性。

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摘要

The functional relevance of brain activity during visuospatial tasks was investigated by combining functional magnetic resonance imaging with unilateral repetitive transcranial magnetic stimulation (rTMS). The cognitive tasks involved visuospatial operations on visually presented and mentally imagined material ("mental clock task"). While visuospatial operations were associated with activation of the intraparietal sulcus region bilaterally, only the group which received rTMS to the right parietal lobe showed an impairment of performance during and immediately after rTMS. This functional parietal asymmetry might indicate a capacity of the right parietal lobe to compensate for a temporary suppression of the left. This is compatible with current theories of spatial hemineglect and constitutes a constraint for models of distributed information processing in the parietal lobes.
机译：通过将功能磁共振成像与单侧重复经颅磁刺激（rTMS）相结合，研究了视觉空间任务期间大脑活动的功能相关性。认知任务涉及视觉呈现和心理想象的材料上的视觉空间操作（“心理时钟任务”）。虽然视觉空间操作与双侧顶壁沟区域的激活相关，但只有在右顶叶接受rTMS的组在rTMS期间和之后表现出功能受损。这种功能性顶叶不对称可能表明右顶叶补偿左侧暂时性压迫的能力。这与当前的空间偏向理论兼容，并构成顶叶中分布式信息处理模型的约束。

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