在人类绘图任务中发现的持续现象：右前岛叶和脑岛盖损伤患者绘制的六指手。
Perseveration found in a human drawing task: six-fingered hands drawn by patients with right anterior insula and operculum damage.
机构信息
Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan.
Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan ; Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan.
出版信息
Behav Neurol. 2014;2014:405726. doi: 10.1155/2014/405726. Epub 2014 Apr 30.
BACKGROUND
Perseveration has been observed in a number of behavioural contexts, including speaking, writing, and drawing. However, no previous report describes patients who show perseveration only for drawing a human figure.
OBJECTIVE
The present report describes a group of patients who show body awareness-related cognitive impairment during a human figure drawing task, a different presentation from previously described neuropsychological cases.
METHODS
Participants were 15 patients who had a frontal lobe brain tumour around the insula cortex of the right hemisphere and had subsequently undergone a neurosurgical resective operation. Participants were asked to draw a human figure in both "hands-down" and "hands-up" configurations.
RESULTS
Eight of the 15 patients drew a human figure with six fingers during the "hands-up" and the "hands-down" human figure drawing tasks (one patient drew eight fingers). A statistical analysis of potential lesion areas revealed damage to the right anterior frontal insula and operculum in this group of patients relative to the five-finger drawing group.
CONCLUSIONS
Our findings reveal a newly described neuropsychological phenomenon that could reflect impairment in attention directed towards body representations.
背景
在许多行为情境中，包括说话、写作和绘画，都观察到了持续现象。然而，以前没有报告描述过仅在画人物画时表现出持续现象的患者。
目的
本报告描述了一组患者在人物画任务中表现出与身体意识相关的认知障碍，这与以前描述的神经心理学病例不同。
方法
参与者为 15 名患者，他们的右半球脑岛皮层周围有额叶脑瘤，随后接受了神经外科切除术。要求参与者在“手放下”和“手举起”两种配置下画一个人物。
结果
在“手举起”和“手放下”人物画任务中，有 8 名患者画了一个有 6 根手指的人物（一名患者画了 8 根手指）。对潜在损伤区域的统计分析显示，与五指画组相比，这组患者的右侧额前脑岛和脑岛盖受损。
结论
我们的发现揭示了一种新描述的神经心理学现象，可能反映了对身体表现的注意力受损。
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