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A beamforming approach to phase-amplitude modulation analysis of multi-channel EEG

Author(s)
Sampson, A. L.; Mukamel, Eran A.; Babadi, Behtash; Prerau, Michael J.; Brown, Emery N.; Purdon, Patrick Lee; ... Show more Show less
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Abstract
Phase-amplitude modulation is a form of cross frequency coupling where the phase of one frequency influences the amplitude of another higher frequency. It has been observed in neurophysiological recordings during sensory, motor, and cognitive tasks, as well as during general anesthesia. In this paper, we describe a novel beamforming procedure to improve estimation of phase-amplitude modulation. We apply this method to 64-channel EEG data recorded during propofol general anesthesia. The method improves the sensitivity of phase-amplitude analyses, and can be applied to a variety of multi-channel neuroscience data where phase-amplitude modulation is present.
Date issued
2012-08
URI
http://hdl.handle.net/1721.1/86316
Department
Harvard University--MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Journal
Proceedings of the 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Sampson, A.L., B. Babadi, M.J. Prerau, E.A. Mukamel, E.N. Brown, and P.L. Purdon. “Beamforming Approach to Phase-Amplitude Modulation Analysis of Multi-Channel EEG.” 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (n.d.).
Version: Author's final manuscript
ISBN
978-1-4577-1787-1
978-1-4244-4119-8
978-1-4244-4120-4

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