Low-frequency oscillations in human tibial somatosensory evoked potentials

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Low-frequency oscillations in human tibial somatosensory evoked potentials.

Oscillatory cerebral electric activity has been related to sensorial and perceptual-cognitive functions. The aim of this work is to investigate low frequency oscillations (<300 Hz), particularly within the gamma band (30-110 Hz), during tibial stimulation. Twenty-one volunteers were subjected to 5 Hz stimulation by current pulses of 0.2 ms duration and the minimum intensity to provoke involunta...

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Are high-frequency (600 Hz) oscillations in human somatosensory evoked potentials due to phase-resetting phenomena?

OBJECTIVE Median nerve somatosensory evoked potentials (SEP) contain a brief oscillatory wavelet burst at about 600 Hz (σ-burst) superimposed on the initial cortical component (N20). While invasive single-cell recordings suggested that this burst is generated by increased neuronal spiking activity in area 3b, recent non-invasive scalp recordings could not reveal concomitant single-trial added-a...

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Characteristics of very high frequency oscillations of somatosensory evoked potentials in humans with epilepsy

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ژورنال

عنوان ژورنال: Arquivos de Neuro-Psiquiatria

سال: 2006

ISSN: 0004-282X

DOI: 10.1590/s0004-282x2006000300010