Related Experiment Video
Updated: Mar 14, 2026
Recording Brain Activity with Ear-Electroencephalography
Published on: March 31, 2023
Case comparison of sleep features from ear-EEG and scalp-EEG
I Zibrandtsen1, P Kidmose2, M Otto3
1Neurophysiology Center, Dept. of Neurology, Zealand University Hospital, Roskilde, Denmark.
Background:
We investigate the potential usability of a novel in-the-ear electroencephalography recording device for sleep staging.
Methods:
In one healthy subject we compare simultaneous earelectroencephalography to standard scalp EEG visually and using power spectrograms. Hypnograms independently derived from the records are compared.
Results:
We find that alpha activity, K complexes, sleep spindles and slow wave sleep can be visually distinguished using earelectroencephalography. Spectral peaks are shared between the two records. Hypnograms are 90.9% similar.
Conclusion:
The results indicate that ear-electroencephalography can be used for sleep staging.
