"Stay tuned": inter-individual neural synchronization during mutual gaze and joint attention.
"Stay tuned": inter-individual neural synchronization during mutual gaze and joint attention.
复制标题
DOI：
10.3389/fnint.2010.00127
复制
发表时间：
2010
影响因子：
3.5
通讯作者：
Sadato N
中科院分区：
文献类型：
--
作者：
Saito DN;Tanabe HC;Izuma K;Hayashi MJ;Morito Y;Komeda H;Uchiyama H;Kosaka H;Okazawa H;Fujibayashi Y;Sadato N
眼神交流提供了人与人之间的沟通联系，促使共同关注。由于自发的大脑活动可能在大脑内神经元处理的协调中起重要作用，因此它们的主体间同步可能发生在目光接触期间。为了验证这一点，我们在成对的成年人中进行了同步功能性MRI。眼睛接触保持在基线，而受试者在一个联合注意力任务中进行实时凝视交流。回避凝视激活了延伸到右后上级颞沟的双侧枕极、背内侧前额叶皮质和双侧额下回。当伴侣注视一个物体时，左侧顶内沟被激活。在所有的任务相关效应被建模后，剩余的时间进程进行个体间相关分析。配对的受试者比非配对的受试者在右额下回表现出更突出的相关性，这表明该区域参与了在眼神交流中分享意图，为联合注意力提供了背景。
Eye contact provides a communicative link between humans, prompting joint attention. As spontaneous brain activity might have an important role in the coordination of neuronal processing within the brain, their inter-subject synchronization might occur during eye contact. To test this, we conducted simultaneous functional MRI in pairs of adults. Eye contact was maintained at baseline while the subjects engaged in real-time gaze exchange in a joint attention task. Averted gaze activated the bilateral occipital pole extending to the right posterior superior temporal sulcus, the dorso-medial prefrontal cortex, and the bilateral inferior frontal gyrus. Following a partner's gaze toward an object activated the left intraparietal sulcus. After all the task-related effects were modeled out, inter-individual correlation analysis of residual time-courses was performed. Paired subjects showed more prominent correlations than non-paired subjects in the right inferior frontal gyrus, suggesting that this region is involved in sharing intention during eye contact that provides the context for joint attention.