Abstract:
Sensory feedback is of vital importance in motor control, yet is rarely studied in diseases which frequently result in motor deficiency, such as hemiparetic stroke. This ...Show MoreMetadata
Abstract:
Sensory feedback is of vital importance in motor control, yet is rarely studied in diseases which frequently result in motor deficiency, such as hemiparetic stroke. This study employs the laterality index (LI) of somatosensory evoked potentials (SEPs) to investigate whether sensory feedback is altered in hemiparetic stroke during movements of the paretic arm, with a hemispheric shift from the lesioned hemisphere toward contralesional hemisphere. Through experimental design involving the isometric lifting of the paretic arms during tactile finger stimulation and the analysis of LI in SEPs P50 and N100, we found: 1) increased contralesional sensory activity in stroke participants when they are receiving sensory input in their paretic hand for both P50 and N100 and 2) the contralesional N100 activity is enhanced when stroke participants are performing an isometric arm lifting task. These results indicate a timedependent shifting of sensory feedback from the sensorimotor areas in the lesioned side to the contralesional side of the stroke brain.
Published in: 2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Date of Conference: 15-19 July 2024
Date Added to IEEE Xplore: 17 December 2024
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Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Clinical Imaging Research Center, Stephenson Family Clinical Research Institute, Carle Foundation Hospital, Urbana, IL, USA
Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Neurology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Clinical Imaging Research Center, Stephenson Family Clinical Research Institute, Carle Foundation Hospital, Urbana, IL, USA
Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, IL, USA
Contents Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Clinical Imaging Research Center, Stephenson Family Clinical Research Institute, Carle Foundation Hospital, Urbana, IL, USA
Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Neurology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
Clinical Imaging Research Center, Stephenson Family Clinical Research Institute, Carle Foundation Hospital, Urbana, IL, USA
Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, USA
Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, IL, USA
