Christodoulou, Aikaterini (Katerina) (2021) Effects of working memory load on tacit coordination and interbrain synchrony. Research Project 2 (major thesis), Behavioural and Cognitive Neurosciences.
|
Text
mBCN_2021_ChristodoulouA.pdf Download (1MB) | Preview |
|
![[img]](https://fse.studenttheses.ub.rug.nl/style/images/fileicons/text.png) |
Text
toestemming.pdf Restricted to Registered users only Download (127kB) |
Abstract
Theory of mind (ToM) is proposed to allow agents to theorize about others' internal states and thus facilitate dynamic behavioral adjustment for joint actions. Working memory (WM) is considered a fundamental part of ToM, maintaining and manipulating social information. However, to what extent WM affects multi-person social coordination is still unexplored. To investigate this, we employed EEG hyperscanning to simultaneously measure participant dyads playing a tacit coordination game while performing a N-back task. We evaluated differential effects of low and high cognitive load on behavioral coordination and estimated a-band interbrain synchronization (IBS). Linear mixed model analysis revealed that coordinating performance deteriorates under high WM load as compared to low load, an effect that corresponded to significantly less IBS in the right prefrontal and frontal regions. Both regions have been suggested to play a primary role in cognitive control. Additional ERP analysis highlighted a P3 component in parietal areas that is often correlated with WM updating. P3 amplitude was significantly decreased under high versus low cognitive load implying processing of arithmetic information on the expanse of social information. Overall, our results demonstrate that WM is crucial for processing social information and can hamper a-band IBS in the brain areas involved in cognitive control of social processing.
| Item Type: | Thesis (Research Project 2 (major thesis)) |
|---|---|
| Supervisor name: | Vugt, M.K. van and Newman, L.A. |
| Degree programme: | Behavioural and Cognitive Neurosciences |
| Thesis type: | Research Project 2 (major thesis) |
| Language: | English |
| Date Deposited: | 30 Aug 2021 10:13 |
| Last Modified: | 30 Aug 2021 10:13 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/25859 |
Actions (login required)
 |
View Item |