Long-term motor learning in focal hand dystonia
Issued Date
2024-12-01
Resource Type
ISSN
13882457
eISSN
18728952
Scopus ID
2-s2.0-85207294585
Journal Title
Clinical Neurophysiology
Volume
168
Start Page
63
End Page
71
Rights Holder(s)
SCOPUS
Bibliographic Citation
Clinical Neurophysiology Vol.168 (2024) , 63-71
Suggested Citation
Shamim E.A., Kim M.S., Kang S.Y., Srivanitchapoom P., Jin S.H., Houdayer E., Diomi P., Thirugnanasambandam N., Kukke S.N., Matsuhashi M., Lamy J.C., Wu T., Meunier S., Hallett M. Long-term motor learning in focal hand dystonia. Clinical Neurophysiology Vol.168 (2024) , 63-71. 71. doi:10.1016/j.clinph.2024.09.024 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/101835
Title
Long-term motor learning in focal hand dystonia
Corresponding Author(s)
Other Contributor(s)
Abstract
Objective: Because focal hand dystonia usually occurs in the over-learned stage, it would be valuable to know long-term motor learning characteristics and underlying pathophysiological features that might predispose to dystonia. Methods: We conducted a case-control exploratory study of 15 visits over 12 weeks in the non-affected hand of a 4-finger sequence of 8 key presses in eight patients with FHD compared with eight age- and sex-matched, healthy volunteers (HVs). We studied the behavioral data and the physiological changes of the brain, including motor cortical excitability and cortical oscillations. Results: There was no significant difference in the time to reach 100 % accuracy between FHD and HV during the 80-day follow-up period. There was a statistically significant difference in the accuracy of sequential finger movement tasks between patients with FHD compared with HVs over 12 weeks, but post-hoc analysis with multiple comparion correction did not show difference. There were no significant differences in recruitment curve changes and task-related power changes of alpha and beta bands. Conclusion: Over 12 weeks, FHD have motor learning capacity comparable to HVs and do not show pathophysiological abnormalities. Significance: Further studies would be valuable with more patients, more extended periods of practice, and more detailed electrophysiological explorations.