EEG in the classroom: Synchronised neural recordings during video presentation

Published in Scientific Reports, 2017

Recommended citation: Andreas Trier Poulsen, Simon Kamronn, Jacek Dmochowski, Lucas C Parra, Lars Kai Hansen. 2017. EEG in the classroom: Synchronised neural recordings during video presentation. Scientific Reports 7. https://www.nature.com/articles/srep43916.pdf

Abstract

We performed simultaneous recordings of electroencephalography (EEG) from multiple students in a classroom, and measured the inter-subject correlation (ISC) of activity evoked by a common video stimulus. The neural reliability, as quantified by ISC, has been linked to engagement and attentional modulation in earlier studies that used high-grade equipment in laboratory settings. Here we reproduce many of the results from these studies using portable low-cost equipment, focusing on the robustness of using ISC for subjects experiencing naturalistic stimuli. The present data shows that stimulus-evoked neural responses, known to be modulated by attention, can be tracked for groups of students with synchronized EEG acquisition. This is a step towards real-time inference of engagement in the classroom.