Decreased habituation of midlatency auditory evoked responses in Parkinson's disease.
Identifieur interne : 004611 ( PubMed/Curation ); précédent : 004610; suivant : 004612Decreased habituation of midlatency auditory evoked responses in Parkinson's disease.
Auteurs : C. Teo [États-Unis] ; L. Rasco ; K. Al-Mefty ; R D Skinner ; F A Boop ; E. Garcia-RillSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 1997.
English descriptors
- KwdEn :
- Aged, Aged, 80 and over, Analysis of Variance, Case-Control Studies, Cross-Sectional Studies, Evoked Potentials, Auditory (drug effects), Evoked Potentials, Auditory (physiology), Female, Habituation, Psychophysiologic (drug effects), Habituation, Psychophysiologic (physiology), Humans, Male, Middle Aged, Parkinson Disease (physiopathology), Psychotropic Drugs (adverse effects), Reaction Time (drug effects), Reaction Time (physiology), Severity of Illness Index.
- MESH :
- chemical , adverse effects : Psychotropic Drugs.
- drug effects : Evoked Potentials, Auditory, Habituation, Psychophysiologic, Reaction Time.
- physiology : Evoked Potentials, Auditory, Habituation, Psychophysiologic, Reaction Time.
- physiopathology : Parkinson Disease.
- Aged, Aged, 80 and over, Analysis of Variance, Case-Control Studies, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Severity of Illness Index.
Abstract
The P1 midlatency auditory evoked potential was studied in patients with Parkinson's disease and compared to that in age-matched controls. Habituation of the potential was determined by using a two-click stimulus paradigm in which the stimuli were presented at 250-, 500-, and 1,000-ms interstimulus intervals. Results showed that habituation of the P1 potential had a statistically significant decrease at the 250-ms and 500-ms interstimulus intervals in patients with Parkinson's disease compared to normal controls. The degree of decreased habituation was found to increase with severity of the disease such that stage 5 patients showed greater decreases in habituation compared to stage 4, as did stage 4 compared to stage 3. These findings may be explained by the presence of a dysregulation of sensory processing, possibly by elements of the reticular activating system, including the pedunculopontine nucleus, in Parkinson's disease.
DOI: 10.1002/mds.870120506
PubMed: 9380045
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<author><name sortKey="Al Mefty, K" sort="Al Mefty, K" uniqKey="Al Mefty K" first="K" last="Al-Mefty">K. Al-Mefty</name>
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<author><name sortKey="Skinner, R D" sort="Skinner, R D" uniqKey="Skinner R" first="R D" last="Skinner">R D Skinner</name>
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<front><div type="abstract" xml:lang="en">The P1 midlatency auditory evoked potential was studied in patients with Parkinson's disease and compared to that in age-matched controls. Habituation of the potential was determined by using a two-click stimulus paradigm in which the stimuli were presented at 250-, 500-, and 1,000-ms interstimulus intervals. Results showed that habituation of the P1 potential had a statistically significant decrease at the 250-ms and 500-ms interstimulus intervals in patients with Parkinson's disease compared to normal controls. The degree of decreased habituation was found to increase with severity of the disease such that stage 5 patients showed greater decreases in habituation compared to stage 4, as did stage 4 compared to stage 3. These findings may be explained by the presence of a dysregulation of sensory processing, possibly by elements of the reticular activating system, including the pedunculopontine nucleus, in Parkinson's disease.</div>
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<Abstract><AbstractText>The P1 midlatency auditory evoked potential was studied in patients with Parkinson's disease and compared to that in age-matched controls. Habituation of the potential was determined by using a two-click stimulus paradigm in which the stimuli were presented at 250-, 500-, and 1,000-ms interstimulus intervals. Results showed that habituation of the P1 potential had a statistically significant decrease at the 250-ms and 500-ms interstimulus intervals in patients with Parkinson's disease compared to normal controls. The degree of decreased habituation was found to increase with severity of the disease such that stage 5 patients showed greater decreases in habituation compared to stage 4, as did stage 4 compared to stage 3. These findings may be explained by the presence of a dysregulation of sensory processing, possibly by elements of the reticular activating system, including the pedunculopontine nucleus, in Parkinson's disease.</AbstractText>
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