Reading about the actions of others: Biological motion imagery and action congruency influence brain activity
Reading about the actions of others: Biological motion imagery and action congruency influence brain activity
复制标题
DOI：
10.1016/j.neuropsychologia.2010.01.028
复制
发表时间：
2010-05-01
期刊：
影响因子：
2.6
通讯作者：
McCarthy, Gregory
中科院分区：
文献类型：
--
作者：
Deen, Ben;McCarthy, Gregory
先前的神经影像学研究表明，颞后上级沟（pSTS）内和附近的区域参与了生物运动和特定运动所暗示的意图的视觉处理。然而，目前尚不清楚这一区域是否在概念层面上参与人类运动的处理，例如在故事理解过程中。在这里，我们从受试者阅读描述人物背景的简短故事中获得功能性磁共振图像，然后以人物的行动或决定作为结论。一半的故事包含生物运动的偶然描述（如人物的行走或抓握），而其余一半则没有。作为第二个因素，故事的最后一幕与人物的背景和隐含的目标和意图是一致或不一致的。包含生物运动的故事强烈激活双侧pSTS，沿着腹侧颞区、前运动皮层、左运动皮层和楔前叶。活动区域的pSTS在个别科目密切重叠的区域确定一个单独的生物运动定位器（点光显示）的任务。阅读不一致和一致的故事激活背侧前扣带回和双侧前扣带回。这些结果支持这一假设，阅读可以从事更高的视觉皮层在内容特定的方式，并建议存在的生物运动应控制作为一个潜在的混淆在功能磁共振成像研究中使用的故事理解任务。(C)2010年由Elsevier Ltd.出版
Prior neuroimaging research has implicated regions within and near the posterior superior temporal sulcus (pSTS) in the visual processing of biological motion and of the intentions implied by specific movements. However, it is unknown whether this region is engaged during the processing of human motion at a conceptual level, such as during story comprehension. Here, we obtained functional magnetic resonance images from subjects reading brief stories that described a human character's background and then concluded with an action or decision made by the character. Half of the stories contained incidental descriptions of biological motion (such as the character's walking or grasping) while the remaining half did not. As a second factor, the final action of the story was either congruent or incongruent with the character's background and implied goals and intentions. Stories that contained biological motion strongly activated the pSTS bilaterally, along with ventral temporal areas, premotor cortex, left motor cortex, and the precuneus. Active regions of pSTS in individual subjects closely overlapped with regions identified with a separate biological motion localizer (point-light display) task. Reading incongruent versus congruent stories activated dorsal anterior cingulate cortex and bilateral anterior insula. These results support the hypothesis that reading can engage higher visual cortex in a content-specific manner, and suggest that the presence of biological motion should be controlled as a potential confound in fMRI studies using story comprehension tasks. (C) 2010 Published by Elsevier Ltd.