Inter-trial alignment of EEG data and phase-locking

M. E. Testorf; P. Horak; A. Connolly; G. L. Holmes; B. C. Jobst

doi:10.1117/12.2189194

21 September 2015 Inter-trial alignment of EEG data and phase-locking

M. E. Testorf, P. Horak, A. Connolly, G. L. Holmes, B. C. Jobst

Proceedings Volume 9600, Image Reconstruction from Incomplete Data VIII; 96000L (2015) https://doi.org/10.1117/12.2189194
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

Neuro-scientific studies are often aimed at imaging brain activity, which is time-locked to external stimuli. This provides the possibility to use statistical methods to extract even weak signal components, which occur with each stimulus. For electroencephalographic recordings this concept is limited by inevitable time jitter, which cannot be controlled in all cases. Our study is based on a cross-correlation analysis of trials to alignment trials based on the recorded data. This is demonstrated both with simulated signals and with clinical EEG data, which were recorded intracranially. Special attention is given to the evaluation of the time-frequency resolved phase-locking across multiple trails.

Citation Download Citation

M. E. Testorf, P. Horak, A. Connolly, G. L. Holmes, and B. C. Jobst "Inter-trial alignment of EEG data and phase-locking", Proc. SPIE 9600, Image Reconstruction from Incomplete Data VIII, 96000L (21 September 2015); https://doi.org/10.1117/12.2189194

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