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Does the Somatosensory Temporal Discrimination Threshold Change over Time in Focal Dystonia?
Joint Authors
Berardelli, A.
Conte, Antonella
Ferrazzano, Gina
Belvisi, Daniele
Manzo, Nicoletta
Suppa, Antonio
Fabbrini, Giovanni
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-14
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Background.
The somatosensory temporal discrimination threshold (STDT) is defined as the shortest interval at which an individual recognizes two stimuli as asynchronous.
Some evidence suggests that STDT depends on cortical inhibitory interneurons in the basal ganglia and in primary somatosensory cortex.
Several studies have reported that the STDT in patients with dystonia is abnormal.
No longitudinal studies have yet investigated whether STDT values in different forms of focal dystonia change during the course of the disease.
Methods.
We designed a follow-up study on 25 patients with dystonia (15 with blepharospasm and 10 with cervical dystonia) who were tested twice: upon enrolment and 8 years later.
STDT values from dystonic patients at the baseline were also compared with those from a group of 30 age-matched healthy subjects.
Results.
Our findings show that the abnormally high STDT values observed in patients with focal dystonia remained unchanged at the 8-year follow-up assessment whereas disease severity worsened.
Conclusions.
Our observation that STDT abnormalities in dystonia remain unmodified during the course of the disease suggests that the altered activity of inhibitory interneurons—either at cortical or at subcortical level—responsible for the increased STDT does not deteriorate as the disease progresses.
American Psychological Association (APA)
Conte, Antonella& Ferrazzano, Gina& Belvisi, Daniele& Manzo, Nicoletta& Suppa, Antonio& Fabbrini, Giovanni…[et al.]. 2017. Does the Somatosensory Temporal Discrimination Threshold Change over Time in Focal Dystonia?. Neural Plasticity،Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1193389
Modern Language Association (MLA)
Conte, Antonella…[et al.]. Does the Somatosensory Temporal Discrimination Threshold Change over Time in Focal Dystonia?. Neural Plasticity No. 2017 (2017), pp.1-6.
https://search.emarefa.net/detail/BIM-1193389
American Medical Association (AMA)
Conte, Antonella& Ferrazzano, Gina& Belvisi, Daniele& Manzo, Nicoletta& Suppa, Antonio& Fabbrini, Giovanni…[et al.]. Does the Somatosensory Temporal Discrimination Threshold Change over Time in Focal Dystonia?. Neural Plasticity. 2017. Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1193389
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193389