CORTICAL RHYTHMS INDUCED BY TMS STIMULATION - Analysis with a Neural Mass Model

Filippo Cona, Melissa Zavaglia, Mauro Ursino, Mario Rosanova

Abstract

Knowledge of cortical rhythms represents an important aspect of modern neuroscience, to understand how the brain realizes its functions. Recent data suggest that different regions in the brain may exhibit distinct rhythms when perturbed by Transcranial Magnetic Stimulation (TMS) (Rosanova et al., 2009) and that these rhythms can change due to the connectivity among regions. In this context, neural mass models can be very useful to simulate specific aspects of electrical brain activity and, above all, to analyze and identify the overall frequency content of EEG in a cortical region of interest (ROI). In this work we implemented a model of connectivity among cortical regions (Ursino, Cona and Zavaglia, 2010) to fit the impulse responses in three ROIs during an experiment of TMS stimulation. In particular we investigated Brodmann Area (BA) 19 (occipital lobe), BA 7 (parietal lobe) and BA 6 (frontal lobe). Results show that the model can reproduce the natural rhythms of the three regions quite well, acting on a few internal parameters. Moreover, model can explain most rhythm changes induced by stimulation of another region, by using just a few long-range connectivity parameters among ROIs.

References

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Paper Citation


in Harvard Style

Cona F., Zavaglia M., Ursino M. and Rosanova M. (2010). CORTICAL RHYTHMS INDUCED BY TMS STIMULATION - Analysis with a Neural Mass Model . In Proceedings of the International Conference on Fuzzy Computation and 2nd International Conference on Neural Computation - Volume 1: ICNC, (IJCCI 2010) ISBN 978-989-8425-32-4, pages 205-211. DOI: 10.5220/0003080402050211


in Bibtex Style

@conference{icnc10,
author={Filippo Cona and Melissa Zavaglia and Mauro Ursino and Mario Rosanova},
title={CORTICAL RHYTHMS INDUCED BY TMS STIMULATION - Analysis with a Neural Mass Model},
booktitle={Proceedings of the International Conference on Fuzzy Computation and 2nd International Conference on Neural Computation - Volume 1: ICNC, (IJCCI 2010)},
year={2010},
pages={205-211},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003080402050211},
isbn={978-989-8425-32-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Fuzzy Computation and 2nd International Conference on Neural Computation - Volume 1: ICNC, (IJCCI 2010)
TI - CORTICAL RHYTHMS INDUCED BY TMS STIMULATION - Analysis with a Neural Mass Model
SN - 978-989-8425-32-4
AU - Cona F.
AU - Zavaglia M.
AU - Ursino M.
AU - Rosanova M.
PY - 2010
SP - 205
EP - 211
DO - 10.5220/0003080402050211