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Computer-assisted placement of electrodes on the human head

https://doi.org/10.1016/0013-4694(92)90161-AGet rights and content

Abstract

A system has been studied with 3 purposes: digitization of the head and mathematical representation of the scalp surface, assistance for electrode placement, and digitization of the exact 3-D position of each electrode after placement. The system has been validated in several ways, mainly by comparing the electrode locations obtained using the classical manual procedure based on the international 10–20 system of electrode placement, and through the assisted procedure based on the described system. The main result is improved reproducibility of the assisted procedure which is 3 times better than in the manual procedure.

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