Gitelman D R, Alpert N M, Kosslyn S, Daffner K, Scinto L, Thompson W, Mesulam M M
Center for Behavioral and Cognitive Neurology, Department of Neurology, Northwestern University, Chicago, IL 60611, USA.
Ann Neurol. 1996 Feb;39(2):174-9. doi: 10.1002/ana.410390206.
We employed positron emission tomography to examine the functional anatomy of the exploratory-motor aspect of spatial attention. Subjects moved their right hand under nonexploratory (control) versus exploratory (active) conditions. Movement architecture and eye movements were matched across conditions. Statistical parametric maps of the exploratory (active) minus nonexploratory (control) tasks in subjects using their right hand in the right hemispace demonstrated activation in right cingulate, premotor and posterior parietal areas. The net activation of multiple right hemisphere cortical areas ipsilateral to the active limb and hemispace strongly supports the predicted, distributed network anatomy and is consistent with possible right hemispheric dominance for exploratory attentional movements.
我们采用正电子发射断层扫描技术来研究空间注意力探索性运动方面的功能解剖结构。受试者在非探索性（对照）与探索性（主动）条件下移动右手。不同条件下的运动结构和眼球运动相匹配。在右半空间使用右手的受试者中，探索性（主动）减去非探索性（对照）任务的统计参数图显示右侧扣带回、运动前区和顶叶后部区域有激活。与主动肢体和半空间同侧的多个右半球皮质区域的净激活有力地支持了预测的分布式网络解剖结构，并且与探索性注意力运动可能存在的右半球优势相一致。
