Print Email Facebook Twitter Poor motor function is associated with reduced sensory processing after stroke Title Poor motor function is associated with reduced sensory processing after stroke Author Campfens, S.F. Zandvliet, S.B. Meskers, C.G.M. Schouten, A.C. Van Putten, M.J.A.M. Van der Kooij, H. Faculty Mechanical, Maritime and Materials Engineering Department Biomechanical Engineering Abstract Abstract The possibility to regain motor function after stroke depends on the intactness of motor and sensory pathways. In this study, we evaluated afferent sensory pathway information transfer and processing after stroke with the coherence between cortical activity and a position perturbation (position-cortical coherence, PCC). Eleven subacute stroke survivors participated in this study. Subjects performed a motor task with the affected and non-affected arm while continuous wrist position perturbations were applied. Cortical activity was measured using EEG. PCC was calculated between position perturbation and EEG at the contralateral and ipsilateral sensorimotor area. The presence of PCC was quantified as the number of frequencies where PCC is larger than zero across the sensorimotor area. All subjects showed significant contralateral PCC in affected and non-affected wrist tasks. Subjects with poor motor function had a reduced presence of contralateral PCC compared with subjects with good motor function in the affected wrist tasks. Amplitude of significant PCC did not differ between subjects with good and poor motor function. Our results show that poor motor function is associated with reduced sensory pathway information transfer and processing in subacute stroke subjects. Position-cortical coherence may provide additional insight into mechanisms of recovery of motor function after stroke. Subject strokecoherenceafferent pathwaysmotor controljoint position perturbationEEG To reference this document use: http://resolver.tudelft.nl/uuid:0d4d7c96-119d-469d-8bf8-b9b6a3c75086 ISSN 0014-4819 Source https://doi.org/10.1007/s00221-015-4206-z Source Experimental Brain Research, 233 (4), 2015 Part of collection Institutional Repository Document type journal article Rights © The Author(s) 2015. This article is published with open access at Springerlink.com Files PDF Campfens_Zandvliet.pdf 2 MB Close viewer /islandora/object/uuid:0d4d7c96-119d-469d-8bf8-b9b6a3c75086/datastream/OBJ/view