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[Possibilities of wavelet-syncronization method for estimation of the spatial distribution of components of auditory evoked potentials in healthy subjects].

A S Romanov, E V Sharova, O A Kuznetsova, L B Oknina, P E Volynskiĭ, and G A Shchekut'ev

Zh Vyssh Nerv Deiat Im I P Pavlova 61(1):112-8 (2011) PMID 21469334

Event-related potentials (ERP) are informative indicators of higher nervous activity of healthy people and patients in pathological states. Traditionally, methods of ERP processing include peak-time characteristics, topographical mapping and localization of equivalent dipole sources. At the same time, estimation of ERP synchronization is complicated by a short duration of the process. The wavelet analysis makes it possible to overcome the disadvantages of the traditional Furrier analysis and to calculate characteristics of ERP synchronization, in particular, phase synchronization. A new approach to estimation of the auditory ERP in healthy persons is proposed in the article. The method is based on the analysis of phase wavelet-synchronization of ERP individual components under conditions of differentiation of different degrees of attention concentration in healthy persons.

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