Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients

L. Astolfi; F. Cincotti; D. Mattia; F. De Vico Fallani; A. Colosimo; S. Salinari; M. G. Marciani; H. Witte; F. Babiloni

Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients

L. Astolfi, F. Cincotti, D. Mattia, F. De Vico Fallani, A. Colosimo, S. Salinari, M. G. Marciani, H. Witte, F. Babiloni

Fondazione Santa Lucia

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this study we estimated time-varying cortical connectivity patterns from a group of Spinal Cord Injured (SCI) patients during the attempt to move a paralyzed limb. This data were compared with the time-varying connectivity patterns estimated in a control group during the effective execution of the movement. Connectivity was estimated from high resolution EEG recordings with the use of realistic head modelling and the linear inverse estimation of the cortical activity. Time-varying PDC was obtained by the adaptive recursive fit of an MVAR model with time-dependent parameters, by means of a generalized recursive least-square (RLS) algorithm, taking into consideration a set of EEG epochs. Such estimator is able to follow rapid changes in the connectivity between cortical areas during an experimental task. The obtained experimental evidences support the conclusion that the SCI population involved a larger cortical network than those generated by the healthy subjects during the task performance. Such network differs for the involvement of the parietal cortices, which increases in strength near to the EMG onset.

Original language	English
Title of host publication	Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"
Pages	4551-4554
Number of pages	4
Publication status	Published - 2008
Event	30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - Vancouver, BC, Canada Duration: Aug 20 2008 → Aug 25 2008

Other

Other	30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08
Country	Canada
City	Vancouver, BC
Period	8/20/08 → 8/25/08

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Signal Processing
Biomedical Engineering
Health Informatics

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Astolfi, L., Cincotti, F., Mattia, D., De Vico Fallani, F., Colosimo, A., Salinari, S., Marciani, M. G., Witte, H., & Babiloni, F. (2008). Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients. In Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology" (pp. 4551-4554). [4650225]

Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients. / Astolfi, L.; Cincotti, F.; Mattia, D.; De Vico Fallani, F.; Colosimo, A.; Salinari, S.; Marciani, M. G.; Witte, H.; Babiloni, F.

Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology". 2008. p. 4551-4554 4650225.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Astolfi, L , Cincotti, F , Mattia, D, De Vico Fallani, F, Colosimo, A, Salinari, S, Marciani, MG, Witte, H & Babiloni, F 2008, Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients. in Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"., 4650225, pp. 4551-4554, 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08, Vancouver, BC, Canada, 8/20/08.

Astolfi L , Cincotti F , Mattia D, De Vico Fallani F, Colosimo A, Salinari S et al. Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients. In Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology". 2008. p. 4551-4554. 4650225

Astolfi, L. ; Cincotti, F. ; Mattia, D. ; De Vico Fallani, F. ; Colosimo, A. ; Salinari, S. ; Marciani, M. G. ; Witte, H. ; Babiloni, F. / Study of the time-varying cortical connectivity during the attempt of a foot movement by Spinal Cord Injured patients. Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology". 2008. pp. 4551-4554

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abstract = "In this study we estimated time-varying cortical connectivity patterns from a group of Spinal Cord Injured (SCI) patients during the attempt to move a paralyzed limb. This data were compared with the time-varying connectivity patterns estimated in a control group during the effective execution of the movement. Connectivity was estimated from high resolution EEG recordings with the use of realistic head modelling and the linear inverse estimation of the cortical activity. Time-varying PDC was obtained by the adaptive recursive fit of an MVAR model with time-dependent parameters, by means of a generalized recursive least-square (RLS) algorithm, taking into consideration a set of EEG epochs. Such estimator is able to follow rapid changes in the connectivity between cortical areas during an experimental task. The obtained experimental evidences support the conclusion that the SCI population involved a larger cortical network than those generated by the healthy subjects during the task performance. Such network differs for the involvement of the parietal cortices, which increases in strength near to the EMG onset.",

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