Ear-EEG Forward Models: Improved Head-Models for Ear-EEG.

ABSTRACT: Computational models for mapping electrical sources in the brain to potentials on the scalp have been widely explored. However, current models do not describe the external ear anatomy well, and is therefore not suitable for ear-EEG recordings. Here we present an extension to existing computational models, by incorporating an improved description of the external ear anatomy based on 3D scanned impressions of the ears. The result is a method to compute an ear-EEG forward model, which enables mapping of sources in the brain to potentials in the ear. To validate the method, individualized ear-EEG forward models were computed for four subjects, and ear-EEG and scalp EEG were recorded concurrently from the subjects in a study comprising both auditory and visual stimuli. The EEG recordings were a

SUBMITTER: Kappel SL 

PROVIDER: S-EPMC6747017 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature