An investigation of brain-to-brain connectivity patternsduring a cooperative fluid intelligence task

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Enformatik Enstitüsü, Bilişsel Bilimler Anabilim Dalı, Türkiye

Tezin Onay Tarihi: 2018

Öğrenci: ÇAĞATAY TAŞCI

Eş Danışman: CEYHAN TEMÜRCÜ, MURAT PERİT ÇAKIR

Özet:

Several studies have shown that executing the same task simultaneously can create synchronization among participants’ brain hemodynamics. In this thesis, we examined multiple participants’ brain hemodynamics while they are engaged in cooperative Sandia matrices (free version Raven’s matrices) task that requires them to coordinate their gaze position to reach information needed to solve the given puzzle. We used functional near-infrared spectroscopy (fNIRS) hyperscanning to observe the brain hemodynamics of two participants simultaneously while they are engaged in a joint task. We found that, forcing people to cooperate in a fluid intelligence task increases behavioral and neural coherence between them. We found increase activation and coherence in areas close to dorsolateral prefrontal cortex and dorsomedial prefrontal cortex. Furthermore, we found that the difficulty of the joint task enhances the neural coherence between people. These finding implies that jointly solving a problem causes a degree of neural synchrony among people and the degree of synchrony increases with the difficulty of the problem