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21 Oct 2002

Volume 81, Issue 17, pp. 3119-3293

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Remote detection of human electroencephalograms using ultrahigh input impedance electric potential sensors

C. J. Harland, T. D. Clark, and R. J. Prance

Appl. Phys. Lett. 81, 3284 (2002); http://dx.doi.org/10.1063/1.1516861 (3 pages) | Cited 20 times

Online Publication Date: 15 October 2002

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In this letter, we demonstrate the use of very high performance, ultrahigh impedance, electric potential probes in the detection of electrical activity in the brain. We show that these sensors, requiring no electrical or physical contact with the body, can be used to monitor the human electroencephalogram (EEG) revealing, as examples, the α and β rhythms and the α blocking phenomenon. We suggest that the advantages offered by these sensors compared with the currently used contact (Ag/AgCl) electrodes may act to stimulate new developments in multichannel EEG monitoring and in real-time electrical imaging of the brain. © 2002 American Institute of Physics.
Show PACS
87.19.R- Mechanical and electrical properties of tissues and organs
87.85.Ng Biological signal processing
87.17.-d Cell processes
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