Sensorimotor cortex beta oscillations reflect motor skill learning ability after stroke

Brain Communications
Svenja EspenhahnNick S Ward

Abstract

Recovery of skilled movement after stroke is assumed to depend on motor learning. However, the capacity for motor learning and factors that influence motor learning after stroke have received little attention. In this study, we first compared motor skill acquisition and retention between well-recovered stroke patients and age- and performance-matched healthy controls. We then tested whether beta oscillations (15-30 Hz) from sensorimotor cortices contribute to predicting training-related motor performance. Eighteen well-recovered chronic stroke survivors (mean age 64 ± 8 years, range: 50-74 years) and 20 age- and sex-matched healthy controls were trained on a continuous tracking task and subsequently retested after initial training (45-60 min and 24 h later). Scalp electroencephalography was recorded during the performance of a simple motor task before each training and retest session. Stroke patients demonstrated capacity for motor skill learning, but it was diminished compared to age- and performance-matched healthy controls. Furthermore, although the properties of beta oscillations prior to training were comparable between stroke patients and healthy controls, stroke patients did show less change in beta measures with motor l...Continue Reading

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Citations

Jun 18, 2021·Frontiers in Systems Neuroscience·Jacopo Barone, Holly E Rossiter
Jul 12, 2021·NeuroImage·Joris van der CruijsenRuud W Selles
Aug 10, 2021·Frontiers in Systems Neuroscience·Sven StorchMatilde Balbi
Aug 21, 2021·Stroke; a Journal of Cerebral Circulation·Robert SchulzChristian Gerloff
Aug 11, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Karim Johari, Roozbeh Behroozmand

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