Focal pathological startle following pontine infarction
Identifieur interne : 002817 ( PascalFrancis/Corpus ); précédent : 002816; suivant : 002818Focal pathological startle following pontine infarction
Auteurs : Shaun R. D. Watson ; James G. ColebatchSource :
- Movement disorders [ 0885-3185 ] ; 2002.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
A 36-year-old male developed an acute right-sided weakness due to left-sided pontine infarction. Two months later, he first noticed sudden right elbow flexion in response to a loud unexpected noise. Detailed electrophysiological assessment was performed. A large, short-latency (median 39 msec), synchronous electromyographic discharge occurred in the right biceps brachii electrodes following a 50-msec, 120-dB 1-kHz tone burst, with habituation only with very short (30-second) interstimulus intervals. Less synchronous activity at longer latencies was present both in a number of right-sided arm muscles at rest and on the clinically unaffected side during a tonic voluntary contraction. We discuss possible underlying mechanisms and our reasons for considering this a focally enhanced startle response. Our report broadens the range of expression of acquired startle disorders.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 02-0207137 INIST |
---|---|
ET : | Focal pathological startle following pontine infarction |
AU : | WATSON (Shaun R. D.); COLEBATCH (James G.) |
AF : | Institute of Neurological Sciences, Department of Neurology and Clinical School, Prince of Wales Hospital/Randwick, Sydney 2031/Australie (1 aut., 2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Movement disorders; ISSN 0885-3185; Etats-Unis; Da. 2002; Vol. 17; No. 1; Pp. 212-218; Bibl. 17 ref. |
LA : | Anglais |
EA : | A 36-year-old male developed an acute right-sided weakness due to left-sided pontine infarction. Two months later, he first noticed sudden right elbow flexion in response to a loud unexpected noise. Detailed electrophysiological assessment was performed. A large, short-latency (median 39 msec), synchronous electromyographic discharge occurred in the right biceps brachii electrodes following a 50-msec, 120-dB 1-kHz tone burst, with habituation only with very short (30-second) interstimulus intervals. Less synchronous activity at longer latencies was present both in a number of right-sided arm muscles at rest and on the clinically unaffected side during a tonic voluntary contraction. We discuss possible underlying mechanisms and our reasons for considering this a focally enhanced startle response. Our report broadens the range of expression of acquired startle disorders. |
CC : | 002B17C; 235 |
FD : | Ramollissement tronc cérébral; Protubérance annulaire; Electromyographie; Membre supérieur; Bras; Mouvement involontaire; Localisé; Flexion; Réflexe sursaut; Stimulus acoustique; Etude cas; Complication; Pathogénie; Adulte; Mâle |
FG : | Homme; Système nerveux pathologie; Système nerveux central pathologie; Encéphale pathologie; Cérébrovasculaire pathologie; Appareil circulatoire pathologie; Vaisseau sanguin pathologie; Electrodiagnostic; Trouble neurologique |
ED : | Brain stem infarction; Pons varolii; Electromyography; Upper limb; Arm; Involuntary movement; Localized; Bending; Startle reflex; Acoustic stimulus; Case study; Complication; Pathogenesis; Adult; Male |
EG : | Human; Nervous system diseases; Central nervous system disease; Cerebral disorder; Cerebrovascular disease; Cardiovascular disease; Vascular disease; Electrodiagnosis; Neurological disorder |
SD : | Infarto tallo cerebral; Protuberancia anular; Electromiografía; Miembro superior; Brazo; Movimiento involuntario; Localizado; Flexión; Reflejo sobresalto; Estímulo acústico; Estudio caso; Complicación; Patogenia; Adulto; Macho |
LO : | INIST-20953.354000100147290400 |
ID : | 02-0207137 |
Links to Exploration step
Pascal:02-0207137Le document en format XML
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<front><div type="abstract" xml:lang="en">A 36-year-old male developed an acute right-sided weakness due to left-sided pontine infarction. Two months later, he first noticed sudden right elbow flexion in response to a loud unexpected noise. Detailed electrophysiological assessment was performed. A large, short-latency (median 39 msec), synchronous electromyographic discharge occurred in the right biceps brachii electrodes following a 50-msec, 120-dB 1-kHz tone burst, with habituation only with very short (30-second) interstimulus intervals. Less synchronous activity at longer latencies was present both in a number of right-sided arm muscles at rest and on the clinically unaffected side during a tonic voluntary contraction. We discuss possible underlying mechanisms and our reasons for considering this a focally enhanced startle response. Our report broadens the range of expression of acquired startle disorders.</div>
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<ET>Focal pathological startle following pontine infarction</ET>
<AU>WATSON (Shaun R. D.); COLEBATCH (James G.)</AU>
<AF>Institute of Neurological Sciences, Department of Neurology and Clinical School, Prince of Wales Hospital/Randwick, Sydney 2031/Australie (1 aut., 2 aut.)</AF>
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<EA>A 36-year-old male developed an acute right-sided weakness due to left-sided pontine infarction. Two months later, he first noticed sudden right elbow flexion in response to a loud unexpected noise. Detailed electrophysiological assessment was performed. A large, short-latency (median 39 msec), synchronous electromyographic discharge occurred in the right biceps brachii electrodes following a 50-msec, 120-dB 1-kHz tone burst, with habituation only with very short (30-second) interstimulus intervals. Less synchronous activity at longer latencies was present both in a number of right-sided arm muscles at rest and on the clinically unaffected side during a tonic voluntary contraction. We discuss possible underlying mechanisms and our reasons for considering this a focally enhanced startle response. Our report broadens the range of expression of acquired startle disorders.</EA>
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<FG>Homme; Système nerveux pathologie; Système nerveux central pathologie; Encéphale pathologie; Cérébrovasculaire pathologie; Appareil circulatoire pathologie; Vaisseau sanguin pathologie; Electrodiagnostic; Trouble neurologique</FG>
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