Department of Fundamental Neuroscience and Geneva Neuroscience Center, University of Geneva, Geneva, SwitzerlandDepartment of Neurosciences, University of California, San Diego, San Diego, California, USA.
Psychophysiology. 2011 Nov;48(11):1490-1499. doi: 10.1111/j.1469-8986.2011.01222.x. Epub 2011 Jun 10.
We used an intermittent stimulus presentation to investigate event-related potential (ERP) components associated with perceptual reversals during binocular rivalry. The combination of spatiotemporal ERP analysis with source imaging and statistical parametric mapping of the concomitant source differences yielded differences in three time windows: reversals showed increased activity in early visual (∼120 ms) and in inferior frontal and anterior temporal areas (∼400-600 ms) and decreased activity in the ventral stream (∼250-350 ms). The combination of source imaging and statistical parametric mapping suggests that these differences were due to differences in generator strength and not generator configuration, unlike the initiation of reversals in right inferior parietal areas. These results are discussed within the context of the extensive network of brain areas that has been implicated in the initiation, implementation, and appraisal of bistable perceptual reversals.
我们使用间歇性刺激呈现来研究双眼竞争过程中与知觉反转相关的事件相关电位 (ERP) 成分。时空 ERP 分析与源成像以及伴随源差异的统计参数映射相结合，在三个时间窗口中产生了差异：反转显示出早期视觉（约 120 毫秒）和下额和前颞区域（约 400-600 毫秒）的活动增加，以及腹侧流（约 250-350 毫秒）的活动减少。源成像和统计参数映射的结合表明，这些差异是由于发生器强度的差异而不是发生器配置的差异，与右侧下顶叶区域反转的启动不同。这些结果在涉及启动、实施和评估双稳态知觉反转的广泛大脑区域网络的背景下进行了讨论。
