Graduate Student Seminar Series – Laura Wheeler

Graduate Student Seminar Series
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Location: WB116
Presentation Title: In-Ear EEG Device for Auditory Brain-Computer Interface Communication
Abstract:
Background – Brain-computer interfaces (BCIs) enable communication using signals generated by the brain. Electroencephalography (EEG) is often implemented to non-invasively record these brain signals using scalp-based electrodes, which are uncomfortable for long-term use and conspicuous. In-ear EEG devices address these limitations and can measure brain activity from within the ear canal. These devices can be implemented as auditory BCIs, which use the brain signals evoked by auditory stimuli as a control method.

Method – We designed, constructed, and piloted a portable in-ear EEG device using commercially available components to investigate the viability of an in-ear EEG device for auditory BCI control. Following REB approval, 15 participants will attend one data collection session. Brain activity will be recorded throughout the trials using the novel in-ear EEG device, and a Wearable Sensing DSI 24 EEG Headset for validation testing. The data collection session is composed of 4 components to evaluate device viability: (1) motion artifact acquisition, (2) alpha wave acquisition, (3) an auditory BCI paradigm involving auditory evoked potentials, and (4) qualitative surveys to evaluate practical device characteristics.

Results – Pilot sessions show the device can record and stream EEG data wirelessly in real-time for BCI control.

Conclusions – As auditory EEG BCIs have demonstrated potential, we conclude that this novel in-ear EEG BCI device is a viable control method.
Supervisor Name: Dr. Tom Chau
Year of Study: 3
Program of Study: MASc
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