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The effects of changing the stimulus presentation rate on early parietal (N20-P25) and frontal (P22-N30) somatosensory potentials (SEPs), evoked by median nerve stimulation, were investigated in 15 normal subjects. Stimuli were presented at 0.1, 0.4, 1.0, 4.0 and 10/sec. Only minor latency changes, mainly for the frontal P22 component, were observed when the stimulus rate was increased up to 10/sec: while the frontal P22-N30 complex was more rapidly and severely reduced in amplitude than the parietal N20-P25 complex. The differential effects of stimulus presentation rate on early frontal and parietal SEPs support the hypothesis of separate neural generators and suggest that the choice of the stimulation frequency may be critical for the interpretation of diagnostic SEP studies.
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
October 1994,
The International journal of neuroscience,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
January 1995,
Neurology,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
January 1990,
Electroencephalography and clinical neurophysiology. Supplement,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
April 1989,
The International journal of neuroscience,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
January 1995,
Electromyography and clinical neurophysiology,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
September 1985,
No to shinkei = Brain and nerve,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
June 1993,
Journal of the neurological sciences,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
October 1997,
Electromyography and clinical neurophysiology,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
January 1990,
Romanian journal of neurology and psychiatry = Revue roumaine de neurologie et psychiatrie,
G Abbruzzese, and
D Dall'Agata, and
M Morena, and
L Reni, and
G Trivelli, and
E Favale
January 1993,
Electroencephalography and clinical neurophysiology,
