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 in for groups of students with synchronized EEG acquisition. This is a step towards real-time inference of engagement in the classroom.
@article{arxiv.1604.03019,
title = {EEG in the classroom: Synchronised neural recordings during video presentation},
author = {Andreas Trier Poulsen and Simon Kamronn and Jacek Dmochowski and Lucas C. Parra and Lars Kai Hansen},
journal= {arXiv preprint arXiv:1604.03019},
year = {2016}
}
Comments
14 pages, 5 figures, 3 tables. Preprint version. Revision of original preprint. Supplementary materials added as ancillary file