A mixed modality paradigm for recording somatosensory and auditory P50 gating (original) (raw)

Psychiatry research, 2001

Abstract

Significant somatosensory evoked potential (SEP) P50 gating has previously been found in young healthy men by the use of identical paired stimuli. In this study, the exploration of the gating paradigm was extended with the addition of a mixed modality paradigm where three different pairs of identical stimuli (clicks, right median nerve electric stimulations and proprioceptive stimuli of changing load on a handheld weight) were presented over a 12-s cycle. In both modalities repeated measures analyses of variance demonstrated no effect of paradigm. This mixed-modality recording paradigm could be used in further experiments to examine gating deficits across modalities.

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