研究发现，自闭症患者的大脑更关注控制视觉技能的区域，控制计划以及决策能力区域则欠活跃，但大脑能够进行重新编排调整。
4月4日，周一（健康日要闻）
一份新的研究报告指出，自闭症患者的大脑更专注于控制视觉感的区域，而对于计划、控制思想和动作的区域则不那么活跃。
蒙特利尔大学的研究人员表示，这项研究解释了为何自闭症患者有着卓越的视觉机能。
该研究的数据来自于26份长达15年的脑成像研究报告，涵括了357位自闭症患者以及370位非自闭症患者。
该研究报告的首席作者法比耶纳·山姆森在一场于大学举行的发布会上表示：“通过这一荟萃分析，我们注意到，对比非自闭患者，自闭患者的颞部及枕部区域表现得更为活跃，而在额皮质区域则不那么活跃。”
她解释道，颞部及枕部区域负责感知及认知图像，而额皮质则负责决策能力、认知控制能力、计划以及执行能力。
来自蒙特利尔大学广泛性发育障碍卓越中心的劳伦特·莫特伦在新闻发布会上表示，该研究指出了“增强感性认知处理的第一生理确认是自闭症患者神经组织的一个核心特征”。
她表示，“我们现在对于自闭症功能已经有了一个强有力的说法，这对于从认知能力角度分析自闭症患者的认知、学习、记忆以及推理能力奠定了基础。”
该研究报告指出，自闭症患者的大脑能够重新分配视觉感知区，并以此让大脑重新编排某些认知能力。
该项研究报告刊登在4月4日的《人脑地图》上。
原文如下：
he brains of people with autism concentrate more resources in areas devoted to visual perception, resulting in less activity in areas used to plan and control thoughts and actions, says a new study.
The findings may explain why people with autism have exceptional visual abilities, said the researchers at the University of Montreal.
They analyzed data from 26 brain imaging studies that were conducted over 15 years and included a total of 357 autistic and 370 non-autistic participants.
"Through this meta-analysis, we were able to observe that autistics exhibit more activity in the temporal and occipital regions and less activity in frontal cortex than non-autistics," first author Fabienne Samson said in a university news release.
The temporal and occipital regions are involved in perceiving and recognizing patterns and objects, while the frontal areas are involved with decision making, cognitive control, planning and execution, she explained.
The findings offer the "first physiological confirmation that enhanced perceptual processing is a core feature of neural organization in this population," Dr. Laurent Mottron, of the university's Centre for Excellence in Pervasive Development Disorders, said in the news release. "We now have a very strong statement about autism functioning, which may be ground for cognitive accounts of autistic perception, learning, memory and reasoning."
According to the study, the finding shows that the autistic brain successfully adapts some of its cognitive functioning by reallocating brain areas to visual perception. The results may point the way to new areas of autism research.
The study appears April 4 in the journal Human Brain Mapping.
More information
The U.S. National Institute of Neurological Disorders and Stroke has more about autism.
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原文链接：http://health.usnews.com/health-news/family-health/brain-and-behavior/articles/2011/04/04/brains-of-people-with-autism-focus-more-on-visual-skills