Wyczesany Miroslaw, Ferdek Magdalena A, Grzybowski Szczepan J
Psychophysiology Laboratory, Institute of Psychology, Jagiellonian University, 6 Ingardena St, PL-30060 Kraków, Poland.
Psychophysiology Laboratory, Institute of Psychology, Jagiellonian University, 6 Ingardena St, PL-30060 Kraków, Poland.
Brain Cogn. 2014 Oct;90:109-15. doi: 10.1016/j.bandc.2014.06.001. Epub 2014 Jul 9.
The study investigates the relationships between the valence of affective states and the cortical patterns of functional connectivity. The information flow rate and direction were estimated by means of Directed Transfer Function (DTF), a multivariate method based on Granger causality. It was calculated on EEG activity recorded during mental imagery tasks. As a result, three regions were revealed as main network hubs, where the information outflow changed specifically with valence: the anterior orbitofrontal cortex, and the right posterior and right temporal area. The role of these structures in synchronizing the cortical affective network as well as in mediating different aspects of emotional state is discussed.
该研究调查了情感状态的效价与功能连接的皮质模式之间的关系。信息流率和方向通过定向传递函数（DTF）进行估计，DTF是一种基于格兰杰因果关系的多变量方法。它是根据在心理意象任务期间记录的脑电图活动计算得出的。结果显示，有三个区域是主要的网络枢纽，在这些区域，信息流出随效价发生特定变化：眶额前皮质、右侧后部和右侧颞区。文中讨论了这些结构在同步皮质情感网络以及调节情绪状态不同方面的作用。
