Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis
Dystonia, a debilitating neurological movement disorder, is characterized by involuntary muscle contractions and develops from a complex pathophysiology. Graph theoretical analysis approaches have been employed to investigate functional network changes in patients with different forms of dystonia. I...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Frontiers Media S.A.
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/09abda7b645141d49cb03f73d1f91331 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:09abda7b645141d49cb03f73d1f91331 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:09abda7b645141d49cb03f73d1f913312021-11-30T13:44:03ZFunctional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis1664-229510.3389/fneur.2021.744503https://doaj.org/article/09abda7b645141d49cb03f73d1f913312021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fneur.2021.744503/fullhttps://doaj.org/toc/1664-2295Dystonia, a debilitating neurological movement disorder, is characterized by involuntary muscle contractions and develops from a complex pathophysiology. Graph theoretical analysis approaches have been employed to investigate functional network changes in patients with different forms of dystonia. In this study, we aimed to characterize the abnormal brain connectivity underlying writer's cramp, a focal hand dystonia. To this end, we examined functional magnetic resonance scans of 20 writer's cramp patients (11 females/nine males) and 26 healthy controls (10 females/16 males) performing a sequential finger tapping task with their non-dominant (and for patients non-dystonic) hand. Functional connectivity matrices were used to determine group averaged brain networks. Our data suggest that in their neuronal network writer's cramp patients recruited fewer regions that were functionally more segregated. However, this did not impair the network's efficiency for information transfer. A hub analysis revealed alterations in communication patterns of the primary motor cortex, the thalamus and the cerebellum. As we did not observe any differences in motor outcome between groups, we assume that these network changes constitute compensatory rerouting within the patient network. In a secondary analysis, we compared patients with simple writer's cramp (only affecting the hand while writing) and those with complex writer's cramp (affecting the hand also during other fine motor tasks). We found abnormal cerebellar connectivity in the simple writer's cramp group, which was less prominent in complex writer's cramp. Our preliminary findings suggest that longitudinal research concerning cerebellar connectivity during WC progression could provide insight on early compensatory mechanisms in WC.Jana SchillJana SchillJana SchillKirsten E. ZeunerArne KnutzenInken TödtKristina SimonyanKristina SimonyanKarsten WittKarsten WittFrontiers Media S.A.articlewriter's crampfunctional magnetic resonance imaging (fMRI)functional brain connectivitycerebellumnetwork analysisdystoniaNeurology. Diseases of the nervous systemRC346-429ENFrontiers in Neurology, Vol 12 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
writer's cramp functional magnetic resonance imaging (fMRI) functional brain connectivity cerebellum network analysis dystonia Neurology. Diseases of the nervous system RC346-429 |
| spellingShingle |
writer's cramp functional magnetic resonance imaging (fMRI) functional brain connectivity cerebellum network analysis dystonia Neurology. Diseases of the nervous system RC346-429 Jana Schill Jana Schill Jana Schill Kirsten E. Zeuner Arne Knutzen Inken Tödt Kristina Simonyan Kristina Simonyan Karsten Witt Karsten Witt Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis |
| description |
Dystonia, a debilitating neurological movement disorder, is characterized by involuntary muscle contractions and develops from a complex pathophysiology. Graph theoretical analysis approaches have been employed to investigate functional network changes in patients with different forms of dystonia. In this study, we aimed to characterize the abnormal brain connectivity underlying writer's cramp, a focal hand dystonia. To this end, we examined functional magnetic resonance scans of 20 writer's cramp patients (11 females/nine males) and 26 healthy controls (10 females/16 males) performing a sequential finger tapping task with their non-dominant (and for patients non-dystonic) hand. Functional connectivity matrices were used to determine group averaged brain networks. Our data suggest that in their neuronal network writer's cramp patients recruited fewer regions that were functionally more segregated. However, this did not impair the network's efficiency for information transfer. A hub analysis revealed alterations in communication patterns of the primary motor cortex, the thalamus and the cerebellum. As we did not observe any differences in motor outcome between groups, we assume that these network changes constitute compensatory rerouting within the patient network. In a secondary analysis, we compared patients with simple writer's cramp (only affecting the hand while writing) and those with complex writer's cramp (affecting the hand also during other fine motor tasks). We found abnormal cerebellar connectivity in the simple writer's cramp group, which was less prominent in complex writer's cramp. Our preliminary findings suggest that longitudinal research concerning cerebellar connectivity during WC progression could provide insight on early compensatory mechanisms in WC. |
| format |
article |
| author |
Jana Schill Jana Schill Jana Schill Kirsten E. Zeuner Arne Knutzen Inken Tödt Kristina Simonyan Kristina Simonyan Karsten Witt Karsten Witt |
| author_facet |
Jana Schill Jana Schill Jana Schill Kirsten E. Zeuner Arne Knutzen Inken Tödt Kristina Simonyan Kristina Simonyan Karsten Witt Karsten Witt |
| author_sort |
Jana Schill |
| title |
Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis |
| title_short |
Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis |
| title_full |
Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis |
| title_fullStr |
Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis |
| title_full_unstemmed |
Functional Neural Networks in Writer's Cramp as Determined by Graph-Theoretical Analysis |
| title_sort |
functional neural networks in writer's cramp as determined by graph-theoretical analysis |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/09abda7b645141d49cb03f73d1f91331 |
| work_keys_str_mv |
AT janaschill functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT janaschill functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT janaschill functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT kirstenezeuner functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT arneknutzen functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT inkentodt functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT kristinasimonyan functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT kristinasimonyan functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT karstenwitt functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis AT karstenwitt functionalneuralnetworksinwriterscrampasdeterminedbygraphtheoreticalanalysis |
| _version_ |
1718406485000585216 |