Localization of somatosensory evoked potentials in primary somatosensory cortex: a comparison between PCA and MUSIC

Author(s): Lutzenberger, W., Flor, H.

Journal/Book: Brain Topogr. 1999; 11: 185-91.

Abstract: The aim of this study was to test source modeling strategies for EEG- data from a clinical group of amputees. The experimental conditions (measuring time, age and condition of the patients) resulted in low quality EEG-data. Noise reduction was achieved by a principal component analysis (PCA) and a multiple signal classification (MUSIC). A comparison of the results of these two methods with traditional signal handling yielded superior results for the MUSIC algorithm.

Keyword(s): Aged. Amputees. Arm. Brain Mapping. Electroencephalography. Evoked Potentials, Somatosensory/physiology. Female. Human. Male. Middle Age. Models, Neurological. Neurology/methods. Phantom Limb/physiopathology. Signal Transduction/physiology. Somatosensory Cortex/physiopathology. Support, Non-U.S. Gov't

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