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Internal consistency of dipole localizations for the human movement-evoked magnetic field component 1 (MEF 1)
T Rosburg1, T Weiss, J Haueisen
1Psychiatric Department, University of Jena, Germany. i5tiro@rz.uni-jena.de
Abstract:
The present magnetoencephalographic study was conducted in order to assess the accuracy of dipole localizations for the movement-evoked field component 1 (MEF 1). Three male subjects were requested to perform self-paced flexions of their index finger and thumb in repeated sessions of 60 trials while the neuromagnetic field was recorded by a 31 channel system. Single moving dipole localizations were performed for the MEF 1. The error within single sessions was calculated by split-half reliability and window-homogeneity in a total of 61 sessions. The mean spatial deviation between both halves amounted to 3.8 mm. The window-homogeneity was found to be 2 mm deviation/10 ms.