Spatial attention deficits in humans: A comparison of superior parietal and temporal-parietal junction lesions
Spatial attention deficits in humans: A comparison of superior parietal and temporal-parietal junction lesions
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DOI：
10.1037/0894-4105.12.2.193
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发表时间：
1998-04-01
期刊：
影响因子：
2.4
通讯作者：
Beck, D
中科院分区：
文献类型：
--
作者：
Friedrich, FJ;Egly, R;Beck, D
尽管空间注意力缺陷（例如忽视和消退）的临床证据通常与右侧颞顶叶交界处的病变有关，但最近的证据表明上顶叶发挥着重要作用。两组患者，选择颞顶交界处包括颞上回的病变（TPJ组），或病变累及顶叶但不包括颞上回的患者（PAR组），在2个实验中执行提示目标检测任务。 TPJ 组发现了类似灭绝的反应时间模式，但 PAR 组却没有。此外，两组都能够以线索预测的形式使用预期信息，这表明在注意力转移过程中，有不同的机制介导外源性和内源性过程。
Although clinical evidence of spatial attention deficits, such as neglect and extinction, is typically associated with lesions of the right temporal-parietal junction, recent evidence has suggested an important role for the superior parietal lobe. Two groups of patients, selected for lesions at the temporal-parietal junction including the superior temporal gyrus (TPJ group), or for lesions involving the parietal but not the superior temporal region (PAR group), performed cued-target detection tasks in 2 experiments. An extinction-like response time pattern was found for the TPJ but not the PAR group. In addition, both groups were able to use expectancy information, in the form of cue predictiveness, suggesting that separate mechanisms mediate exogenous and endogenous processes during attention shifts.