Probabilistic independent component analysis was applied to identify the default mode network (DMN) in resting state data obtained with functional magnetic resonance imaging from 25 DSM-IV schizophrenia and 25 matched healthy subjects. Power spectrum analysis showed a significant diagnosis × frequency interaction and higher power in one frequency band, indicating an alteration of DMN frequency spectrum in schizophrenia.
Keywords: Cortex; Default mode network (DMN); Power spectrum analysis; Probabilistic independent component analysis (pICA); Resting state; Schizophrenia.
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