Seminar of Cognitive Science - Roman Rosipal (12.11.2019)
Tuesday 12.11.2019 at 16:30, Lecture room I/9
By: Igor Farkaš
Mgr. Ing. Roman Rosipal, PhD (Institute of Measurement Science, Slovak Academy of Sciences):
Atomic Decomposition of Human EEG Oscillations in Medical Research
Abstract:
Frequency spectra and spatial sources of EEG oscillations are highly specific to individuals and may be manifested differently as functions of different interventions. However, most analyses of intervention effects on EEG oscillations use an approach based on standard frequency band powers measured at single electrodes. We have developed and applied a method that accurately and efficiently models individual EEG oscillations and tracks their activation over time or treatment conditions. In the talk, I will focus on basic principles of the approach and I will in detail discuss recent results which compare two specific models for EEG atomic decomposition, mainly the three-way parallel factor analysis (PARAFAC) model and its more flexible version represented by the Tucker model. These results are new and encouraging.