[Purpose] The purpose of this study was to determine whether two-handed task training is effective on motor learning of injured cerebral cortex activation and upper extremity function recovery after stroke. [Subjects and Methods] Two hemiplegic subjects participated in this study: one patient was affected on the dominant side of the body and the other was affected on the non-dominant side of the body, and both scored in the range of 58-66 in the Fugl-Meyer assessment. The excitability of the corticospinal tract and Manual Function Test were examined. [Results] The excitability of the corticospinal tract and the Manual Function Test showed significant differences in the activation of both sides of the cerebral cortex and in the variation in learning effect of upper extremity motor function recovery in patients with hemiplegic non-dominant hand (left). [Conclusion] The results suggested that two-handed task training had a different influence on dominant hand (right) and non-dominant hand (left) motor recovery.
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http://dx.doi.org/10.1589/jpts.29.102 | DOI Listing |
PM R
November 2024
Research Department, Providence VA Medical Center, Providence, Rhode Island, USA.
Background: Prior research found that Black veterans with upper limb amputation (ULA) reported greater disability and need for assistance compared to White veterans. The extent to which racial disparities in outcomes exist outside of the Department of Veterans Affairs has not been explored.
Objective: To examine racial disparities in physical function and prosthesis satisfaction among individuals with ULA and assess the potential moderating role of veteran status.
bioRxiv
August 2024
Department of Human Development, Teachers College, Columbia University, 525 W. 120 St., New York, NY, 10027, USA.
The error-related negativity (ERN)-an index of error monitoring-is associated with anxiety symptomatology. Although recent work suggests associations between the ERN and anxiety are relatively modest, little attention has been paid to how variation in task parameters may influence the strength of ERN-anxiety associations. To close this gap, the current meta-analysis assesses the possible influence of task parameter variation in the Flanker task-the most commonly used task to elicit the ERN-on observed ERN-anxiety associations.
View Article and Find Full Text PDFSci Rep
July 2024
NTT Communication Science Laboratories, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa, 243-0198, Japan.
In two-handed actions like baseball batting, the brain can allocate the control to each arm in an infinite number of ways. According to hemispheric specialization theory, the dominant hemisphere is adept at ballistic control, while the non-dominant hemisphere is specialized at postural stabilization, so the brain should divide the control between the arms according to their respective specialization. Here, we tested this prediction by examining how the brain shares the control between the dominant and non-dominant arms during bimanual reaching and postural stabilization.
View Article and Find Full Text PDFIEEE Trans Vis Comput Graph
June 2024
The ability to manipulate and physically feel virtual objects without any real object being present and without equipping the user has been a long-standing goal in virtual reality (VR). Emerging ultrasound mid-air haptics (UMH) technology could potentially address this challenge, as it enables remote tactile stimulation of unequipped users. However, to date, UMH has received limited attention in the field of haptic exploration and manipulation in virtual environments.
View Article and Find Full Text PDFIEEE Trans Neural Syst Rehabil Eng
May 2024
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