Functional Brain Connectivity during Multiple Motor Imagery Tasks in Spinal Cord Injury

Neural Plasticity
Alkinoos AthanasiouPanagiotis D Bamidis

Abstract

Reciprocal communication of the central and peripheral nervous systems is compromised during spinal cord injury due to neurotrauma of ascending and descending pathways. Changes in brain organization after spinal cord injury have been associated with differences in prognosis. Changes in functional connectivity may also serve as injury biomarkers. Most studies on functional connectivity have focused on chronic complete injury or resting-state condition. In our study, ten right-handed patients with incomplete spinal cord injury and ten age- and gender-matched healthy controls performed multiple visual motor imagery tasks of upper extremities and walking under high-resolution electroencephalography recording. Directed transfer function was used to study connectivity at the cortical source space between sensorimotor nodes. Chronic disruption of reciprocal communication in incomplete injury could result in permanent significant decrease of connectivity in a subset of the sensorimotor network, regardless of positive or negative neurological outcome. Cingulate motor areas consistently contributed the larger outflow (right) and received the higher inflow (left) among all nodes, across all motor imagery categories, in both groups. Injure...Continue Reading

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Citations

Aug 29, 2018·Behavioural Neurology·Niki PandriaPanagiotis D Bamidis
Feb 26, 2021·Neural Plasticity·Vanessa N FreyRaffaele Nardone
Apr 27, 2021·Frontiers in Human Neuroscience·Marcel SimisFelipe Fregni
May 29, 2021·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Karullyny Barreto MonteiroRodrigo Gomes de Souza Vale
Oct 30, 2021·Clinical EEG and Neuroscience·Muhammad A HasanAleksandra Vuckovic

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