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Influence of motor imagination on cortical activation during functional electrical stimulation.

Reynolds C, Osuagwu BA, Vuckovic A - Clin Neurophysiol (2014)

Bottom Line: Event related synchronisation/desynchronisation (ERS/ERD) over the sensory-motor cortex was analysed and compared in three paradigms: MI before FES, MI before and during FES and FES alone activated automatically.When MI only preceded FES it resulted in a weaker beta ERD during FES than when FES was activated automatically.The study is relevant for neurorehabilitation of movement.

View Article: PubMed Central - PubMed

Affiliation: Biomedical Engineering, School of Engineering, University of Glasgow, James Watt Building (South), G12 8QQ Glasgow, UK. Electronic address: clare_t_reynolds@hotmail.com.

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Related in: MedlinePlus

Bipolar electrode recording CFz-CPz; Event related synchronisation/desynchronisation for conditions 1–3 (a–c) and regions of statistically significant difference between conditions (d–f). Numbers in the left column figures correspond to the conditions, numbers in the right column figures correspond to pairs of conditions being compared. Significance level p = 0.05, with Holm–Bonferroni corrections for multiple comparison.
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f0025: Bipolar electrode recording CFz-CPz; Event related synchronisation/desynchronisation for conditions 1–3 (a–c) and regions of statistically significant difference between conditions (d–f). Numbers in the left column figures correspond to the conditions, numbers in the right column figures correspond to pairs of conditions being compared. Significance level p = 0.05, with Holm–Bonferroni corrections for multiple comparison.

Mentions: Fig. 5 shows ERS/ERD maps for all three experimental conditions (left column) and areas of statistical significant differences in the time–frequency domain between all three conditions (right column) at electrode location CFz-CPz. The weakest ERD upon FES can be noticed for condition 1, significantly lower than in condition 2 (Fig. 5d) over the 8–16 Hz band and lower than condition 3 in the higher beta band (Fig. 5e). Although visually, condition 2 seems to have stronger ERD than condition 3 (Fig. 5f), statistical analysis revealed significant differences mostly in the period before FES. Post FES beta ERD is followed by beta ERS and is most prominent for condition 3.


Influence of motor imagination on cortical activation during functional electrical stimulation.

Reynolds C, Osuagwu BA, Vuckovic A - Clin Neurophysiol (2014)

Bipolar electrode recording CFz-CPz; Event related synchronisation/desynchronisation for conditions 1–3 (a–c) and regions of statistically significant difference between conditions (d–f). Numbers in the left column figures correspond to the conditions, numbers in the right column figures correspond to pairs of conditions being compared. Significance level p = 0.05, with Holm–Bonferroni corrections for multiple comparison.
© Copyright Policy - CC BY-NC-ND
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4493293&req=5

f0025: Bipolar electrode recording CFz-CPz; Event related synchronisation/desynchronisation for conditions 1–3 (a–c) and regions of statistically significant difference between conditions (d–f). Numbers in the left column figures correspond to the conditions, numbers in the right column figures correspond to pairs of conditions being compared. Significance level p = 0.05, with Holm–Bonferroni corrections for multiple comparison.
Mentions: Fig. 5 shows ERS/ERD maps for all three experimental conditions (left column) and areas of statistical significant differences in the time–frequency domain between all three conditions (right column) at electrode location CFz-CPz. The weakest ERD upon FES can be noticed for condition 1, significantly lower than in condition 2 (Fig. 5d) over the 8–16 Hz band and lower than condition 3 in the higher beta band (Fig. 5e). Although visually, condition 2 seems to have stronger ERD than condition 3 (Fig. 5f), statistical analysis revealed significant differences mostly in the period before FES. Post FES beta ERD is followed by beta ERS and is most prominent for condition 3.

Bottom Line: Event related synchronisation/desynchronisation (ERS/ERD) over the sensory-motor cortex was analysed and compared in three paradigms: MI before FES, MI before and during FES and FES alone activated automatically.When MI only preceded FES it resulted in a weaker beta ERD during FES than when FES was activated automatically.The study is relevant for neurorehabilitation of movement.

View Article: PubMed Central - PubMed

Affiliation: Biomedical Engineering, School of Engineering, University of Glasgow, James Watt Building (South), G12 8QQ Glasgow, UK. Electronic address: clare_t_reynolds@hotmail.com.

Show MeSH
Related in: MedlinePlus