Time-Frequency Methods in a Study of Voluntary Movements

Abstract

Two methods operating in time-frequency space were applied to analysis of brain activity accompanying voluntary finger movements. The first one, based on Matching Pursuit approach, provided high-resolution distributions of power in time-frequency space. The second method called short time Directed Transfer Function (SDTF), based on a multichannel autoregressive model (MVAR), allowed for investigation of EEG activity propagation as a function of time and frequency. The evidence of "cross-talk" between different areas of sensorimotor cortex was found.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA412452

Entities

People

  • J. Ginter Jr
  • K. J. Blinowska
  • Meghan Kaminski
  • P. J. Durka

Organizations

  • University of Warsaw

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Abstracts
  • Availability
  • Classification
  • Contracts
  • Engineering
  • Frequency
  • High Resolution
  • Military Research
  • Monitoring
  • Multichannel
  • Standardization
  • Transfer Functions
  • Universities

Fields of Study

  • Psychology

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Neuroscience
  • Statistical inference.

Technology Areas

  • Space