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Impairment of cortical inhibition in writer's cramp as revealed by changes in electromyographic silent period after transcranial magnetic stimulation

Authorized Users Only
1997
Authors
Filipović, Saša
Ljubisavljević, Miloš
Svetel, Marina
Milanović, Slađan
Kačar, Aleksandra
Kostić, Vladimir S.
Article (Published version)
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Abstract
Changes in silent period (SP) duration following transcranial magnetic stimulation (TMS) set at 20% above the motor threshold were studied in six subjects suffering from writer's cramp, while performing dystonic movement and during voluntary isometric contraction of the muscles mostly involved in the dystonic movement. Dependency of SP duration on the intensity of preceding muscle contraction was compared on both affected and healthy side. In all subjects SP duration during dystonic contraction was shorter than during voluntary contraction of the similar strength performed with the same hand. Also, in five subjects, SP duration during dystonic contraction was shorter than during voluntary contraction of the similar strength performed with the healthy hand. In addition, the SP duration on the affected side was negatively associated with the intensity of the preceding contraction (i.e. the stronger contraction the shorter SP), while on the healthy side it was not the case. It is conclude...d that central inhibitory mechanisms are abnormal in writer's cramp.

Keywords:
transcranial magnetic stimulation / silent period / intracortical inhibition / focal dystonia / writer's cramp
Source:
Neuroscience Letters, 1997, 222, 3, 167-170
Publisher:
  • Elsevier Ireland Ltd, Clare

DOI: 10.1016/S0304-3940(97)13370-5

ISSN: 0304-3940

PubMed: 9148241

WoS: A1997WJ34000007

Scopus: 2-s2.0-0031042281
[ Google Scholar ]
102
URI
http://rimi.imi.bg.ac.rs/handle/123456789/34
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
Institut za medicinska istraživanja
TY  - JOUR
AU  - Filipović, Saša
AU  - Ljubisavljević, Miloš
AU  - Svetel, Marina
AU  - Milanović, Slađan
AU  - Kačar, Aleksandra
AU  - Kostić, Vladimir S.
PY  - 1997
UR  - http://rimi.imi.bg.ac.rs/handle/123456789/34
AB  - Changes in silent period (SP) duration following transcranial magnetic stimulation (TMS) set at 20% above the motor threshold were studied in six subjects suffering from writer's cramp, while performing dystonic movement and during voluntary isometric contraction of the muscles mostly involved in the dystonic movement. Dependency of SP duration on the intensity of preceding muscle contraction was compared on both affected and healthy side. In all subjects SP duration during dystonic contraction was shorter than during voluntary contraction of the similar strength performed with the same hand. Also, in five subjects, SP duration during dystonic contraction was shorter than during voluntary contraction of the similar strength performed with the healthy hand. In addition, the SP duration on the affected side was negatively associated with the intensity of the preceding contraction (i.e. the stronger contraction the shorter SP), while on the healthy side it was not the case. It is concluded that central inhibitory mechanisms are abnormal in writer's cramp.
PB  - Elsevier Ireland Ltd, Clare
T2  - Neuroscience Letters
T1  - Impairment of cortical inhibition in writer's cramp as revealed by changes in electromyographic silent period after transcranial magnetic stimulation
EP  - 170
IS  - 3
SP  - 167
VL  - 222
DO  - 10.1016/S0304-3940(97)13370-5
UR  - conv_5040
ER  - 
@article{
author = "Filipović, Saša and Ljubisavljević, Miloš and Svetel, Marina and Milanović, Slađan and Kačar, Aleksandra and Kostić, Vladimir S.",
year = "1997",
abstract = "Changes in silent period (SP) duration following transcranial magnetic stimulation (TMS) set at 20% above the motor threshold were studied in six subjects suffering from writer's cramp, while performing dystonic movement and during voluntary isometric contraction of the muscles mostly involved in the dystonic movement. Dependency of SP duration on the intensity of preceding muscle contraction was compared on both affected and healthy side. In all subjects SP duration during dystonic contraction was shorter than during voluntary contraction of the similar strength performed with the same hand. Also, in five subjects, SP duration during dystonic contraction was shorter than during voluntary contraction of the similar strength performed with the healthy hand. In addition, the SP duration on the affected side was negatively associated with the intensity of the preceding contraction (i.e. the stronger contraction the shorter SP), while on the healthy side it was not the case. It is concluded that central inhibitory mechanisms are abnormal in writer's cramp.",
publisher = "Elsevier Ireland Ltd, Clare",
journal = "Neuroscience Letters",
title = "Impairment of cortical inhibition in writer's cramp as revealed by changes in electromyographic silent period after transcranial magnetic stimulation",
pages = "170-167",
number = "3",
volume = "222",
doi = "10.1016/S0304-3940(97)13370-5",
url = "conv_5040"
}
Filipović, S., Ljubisavljević, M., Svetel, M., Milanović, S., Kačar, A.,& Kostić, V. S.. (1997). Impairment of cortical inhibition in writer's cramp as revealed by changes in electromyographic silent period after transcranial magnetic stimulation. in Neuroscience Letters
Elsevier Ireland Ltd, Clare., 222(3), 167-170.
https://doi.org/10.1016/S0304-3940(97)13370-5
conv_5040
Filipović S, Ljubisavljević M, Svetel M, Milanović S, Kačar A, Kostić VS. Impairment of cortical inhibition in writer's cramp as revealed by changes in electromyographic silent period after transcranial magnetic stimulation. in Neuroscience Letters. 1997;222(3):167-170.
doi:10.1016/S0304-3940(97)13370-5
conv_5040 .
Filipović, Saša, Ljubisavljević, Miloš, Svetel, Marina, Milanović, Slađan, Kačar, Aleksandra, Kostić, Vladimir S., "Impairment of cortical inhibition in writer's cramp as revealed by changes in electromyographic silent period after transcranial magnetic stimulation" in Neuroscience Letters, 222, no. 3 (1997):167-170,
https://doi.org/10.1016/S0304-3940(97)13370-5 .,
conv_5040 .

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