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Abstract #3316

Perturbation of intrinsic oscillatory modes by focal ischemic stroke in rats

Rita Alves1, Joana Cabral2, and Noam Shemesh1
1Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal, Lisbon, Portugal, 2Life and Health Sciences Research Institute, University of Minho, Braga, Portugal, Braga, Portugal

Synopsis

Keywords: Functional Connectivity, Brain

Motivation: The biophysical mechanisms underlying changes in functional connectivity upon stroke remain unclear.

Goal(s): The present study aims at investigating how disrupting a specific and well-localized cortical area modulates spontaneous long-range functional connectivity.

Approach: A novel approach based on intrinsic oscillatory modes exhibiting stationary wave pattern features was used to provide insight into the organizing principles underpinning spontaneous long-range FC.

Results: The presented intrinsic mode framework revealed global reorganization following local disruption with enhancement of corticostriatal activity in stroke.

Impact: Our findings provide an important insight augur well for better understanding of neural network reorganization.

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