Center for Mind/Brain Sciences (CIMeC), University of Trento, Italy; Department of Cognitive Science, University of Trento, Italy; Department of Psychology, Harvard University, Cambridge, MA, USA.
Center for Mind/Brain Sciences (CIMeC), University of Trento, Italy; Department of Experimental Psychology, Faculty of Behavioural and Social Sciences, University of Groningen, the Netherlands.
Neuroimage. 2019 May 1;191:234-242. doi: 10.1016/j.neuroimage.2019.02.029. Epub 2019 Feb 13.
A network of frontal and parietal regions is known to be recruited during the planning and execution of arm and eye movements. While movements of the two effectors are typically coupled with each other, it remains unresolved how information is shared between them. Here we aimed to identify regions containing neuronal populations that show directional tuning for both arm and eye movements. In two separate fMRI experiments, the same participants were scanned while performing a center-out arm or eye movement task. Using a whole-brain searchlight-based representational similarity analysis (RSA), we found that a bilateral region in the posterior superior parietal lobule represents both arm and eye movement direction, thus extending previous findings in monkeys.
已知额和顶区域网络在手臂和眼睛运动的计划和执行过程中被招募。虽然两个效应器的运动通常相互耦合，但信息如何在它们之间共享仍未解决。在这里，我们旨在确定包含对手臂和眼睛运动均具有方向调谐的神经元群体的区域。在两个单独的 fMRI 实验中，相同的参与者在执行中心外手臂或眼睛运动任务时进行扫描。使用基于全脑搜索灯的表示相似性分析（RSA），我们发现后上顶叶的双侧区域表示手臂和眼睛运动的方向，从而扩展了先前在猴子中的发现。
