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EEG in the classroom: Synchronised neural recordings during video presentation
Andreas Trier Poulsen1, Simon Kamronn1, Jacek Dmochowski2,3
1Technical University of Denmark, DTU Compute, Kgs. Lyngby, Denmark.
Scientific Reports
|March 8, 2017
Summary
We used portable electroencephalography (EEG) to measure brain activity synchronization between students watching a video. This inter-subject correlation (ISC) reliably tracks attention, even with low-cost equipment in natural settings.
Area of Science:
- Neuroscience
- Educational Technology
- Cognitive Science
Background:
- Inter-subject correlation (ISC) quantifies neural reliability and is linked to attention.
- Previous studies used high-grade equipment in lab settings.
- Classroom environments present naturalistic stimuli and potential for engagement monitoring.
Purpose of the Study:
- To assess the feasibility of using portable, low-cost electroencephalography (EEG) for measuring neural responses in a classroom.
- To validate the use of inter-subject correlation (ISC) for tracking attention with naturalistic stimuli.
- To explore real-time inference of student engagement.
Main Methods:
- Simultaneous EEG recordings from multiple students during a common video stimulus.
- Calculation of inter-subject correlation (ISC) to measure neural activity synchronization.
- Utilized portable, low-cost EEG equipment in a classroom setting.
Main Results:
- Reproduced findings from lab-based studies using portable equipment.
- Demonstrated that stimulus-evoked neural responses, modulated by attention, can be tracked in groups of students.
- Showcased the robustness of ISC with naturalistic classroom stimuli.
Conclusions:
- Portable EEG and ISC are viable for tracking neural responses and attention in educational settings.
- This approach offers a cost-effective method for monitoring student engagement.
- Paves the way for real-time engagement inference in classrooms.
