The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.
The supplementary motor area contributes to the timing of the anticipatory postural adjustment during step initiation in participants with and without Parkinson's disease
Open accessAbstract
The supplementary motor area is thought to contribute to the generation of anticipatory postural adjustments (which act to stabilize supporting body segments prior to movement), but its precise role remains unclear. In addition, participants with Parkinson’s disease (PD) exhibit impaired function of the supplementary motor area as well as decreased amplitudes and altered timing of the anticipatory postural adjustment during step initiation, but the contribution of the supplementary motor area to these impairments also remains unclear. To determine how the supplementary motor area contributes to generating the anticipatory postural adjustment and to the impaired anticipatory postural adjustments of participants with PD, we examined the voluntary steps of 8 participants with PD and 8 participants without PD, before and after disrupting the supplementary motor area and dorsolateral premotor cortex, in separate sessions, with 1-Hz repetitive transcranial magnetic stimulation. Both groups exhibited decreased durations of their anticipatory postural adjustments after repetitive transcranial magnetic stimulation over the supplementary motor area but not over the dorsolateral premotor cortex. Peak amplitudes of the anticipatory postural adjustments were unaffected by repetitive transcranial magnetic stimulation to either site. The symptom severity of the participants with PD positively correlated with the extent that repetitive transcranial magnetic stimulation over the supplementary motor area affected the durations of their anticipatory postural adjustments. The results suggest that the supplementary motor area contributes to the timing of the anticipatory postural adjustment and that participants with PD exhibit impaired timing of their anticipatory postural adjustments, in part, due to progressive dysfunction of circuits associated with the supplementary motor area.
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Cites
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Cited by
Imaging the neural underpinnings of freezing of gait in Parkinson’s disease
Bardakan, M. M., Fink, G. R., Zapparoli, L., Bottini, G., Paulesu, E., & Weiss, P. H. (2022) · NeuroImage: Clinical · doi:10.1016/j.nicl.2022.103123 · Cited by 51
Metadata
- Authors
- Jacobs, J. V., Lou, J. S., Kraakevik, J. A., & Horak, F. B.
- Venue
- Neuroscience
- Publisher
- Elsevier BV
- Published
- 2009-12
- Volume
- 164
- Issue
- 2
- Pages
- 877-885
- ISSN
- 0306-4522 (ISSN-L)
- OpenAlex
- W1980309682
- Cited by
- 279
- References
- 57
- FWCI
- 3.65
- Type
- journal article
- Language
- en
- Open access
- green
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- Jacobs, J. V., Lou, J. S., Kraakevik, J. A., & Horak, F. B. (2009). The supplementary motor area contributes to the timing of the anticipatory postural adjustment during step initiation in participants with and without Parkinson's disease. Neuroscience. https://doi.org/10.1016/j.neuroscience.2009.08.002
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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