What is EEG?

Electroencephalogram (EEG) is a widely used means of recording brain activity, whereby potentials generated within the brain are measured via electrodes placed along the scalp. Despite advances in wearable EEG technology (reduced battery size, gel-free electrodes), research has focused on systems which utilise on-scalp electrodes. This approach is fundamentally limited, as it requires a means for stable attachment (cap and/or adhesive), making the recording process stigmatising and sometimes uncomfortable.

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