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- W3212636843 abstract "Knowledge of motor cortex connectivity is of great value in cognitive neuroscience, in order to provide a better understanding of motor organization and its alterations in pathological conditions. Traditional methods provide connectivity estimations which may vary depending on the task. This work aims to propose a new method for motor connectivity assessment based on the hypothesis of a task-independent connectivity network, assuming nonlinear behavior. The model considers six cortical regions of interest (ROIs) involved in hand movement. The dynamics of each region is simulated using a neural mass model, which reproduces the oscillatory activity through the interaction among four neural populations. Parameters of the model have been assigned to simulate both power spectral densities and coherences of a patient with left-hemisphere stroke during resting condition, movement of the affected, and movement of the unaffected hand. The presented model can simulate the three conditions using a single set of connectivity parameters, assuming that only inputs to the ROIs change from one condition to the other. The proposed procedure represents an innovative method to assess a brain circuit, which does not rely on a task-dependent connectivity network and allows brain rhythms and desynchronization to be assessed on a quantitative basis." @default.
- W3212636843 created "2021-11-22" @default.
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- W3212636843 date "2021-11-08" @default.
- W3212636843 modified "2023-10-03" @default.
- W3212636843 title "A Novel Method to Assess Motor Cortex Connectivity and Event Related Desynchronization Based on Mass Models" @default.
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- W3212636843 doi "https://doi.org/10.3390/brainsci11111479" @default.
- W3212636843 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8615480" @default.
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