title: Wireless EEG patch sensor on forehead using on-demand stretchable electrode sheet and electrode-tissue impedance scanner.
abstract: A wireless electroencephalogram (EEG) sensor using a stretchable electrode sheet and electrode-tissue impedance measurement module is presented herein. The sensor can be attached to the forehead using biocompatible gel with the electrode sheet. The sensor is compactly designed for 3 cm × 9 cm × 6 mm with weight of 12 g. Impedance scanning circuit is also proposed to evaluate the skin surface condition before EEG measurements. We developed the impedance scanning board for 3 cm × 5 cm × 3 mm, with weight of 5.6 g. Results show that the proposed system demonstrates a promising performance in diagnosing the Alzheimer's disease using frequency domain analysis.
authors.forename: S
authors.initials: S
authors.lastname: Yoshimoto
authors.forename: T
authors.initials: T
authors.lastname: Araki
authors.forename: T
authors.initials: T
authors.lastname: Uemura
authors.forename: T
authors.initials: T
authors.lastname: Nezu
authors.forename: M
authors.initials: M
authors.lastname: Kondo
authors.forename: K
authors.initials: K
authors.lastname: Sasai
authors.forename: M
authors.initials: M
authors.lastname: Iwase
authors.forename: H
authors.initials: H
authors.lastname: Satake
authors.forename: A
authors.initials: A
authors.lastname: Yoshida
authors.forename: M
authors.initials: M
authors.lastname: Kikuchi
authors.forename: T
authors.initials: T
authors.lastname: Sekitani
mesh_terms: D000544:Alzheimer Disease / Q000175:diagnosis; D017097:Electric Impedance; D004566:Electrodes; D004569:Electroencephalography / Q000295:instrumentation* / Q000379:methods*; D005546:Forehead; D006801:Humans