Article (Scientific journals)
Ising model with conserved magnetization on the human connectome: Implications on the relation structure-function in wakefulness and anesthesia
Stramaglia, Sebastiano; Pellicoro, Mario F.; Angelini, Leonardo et al.
2017In Chaos, 27 (4)
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Keywords :
Anesthesia; Brain; Connectome; NeurologicalWakefulness
Abstract :
[en] Dynamical models implemented on the large scale architecture of the human brain may shed light on how a function arises from the underlying structure. This is the case notably for simple abstract models, such as the Ising model. We compare the spin correlations of the Ising model and the empirical functional brain correlations, both at the single link level and at the modular level, and show that their match increases at the modular level in anesthesia, in line with recent results and theories. Moreover, we show that at the peak of the specific heat (the critical state), the spin correlations are minimally shaped by the underlying structural network, explaining how the best match between the structure and function is obtained at the onset of criticality, as previously observed. These findings confirm that brain dynamics under anesthesia shows a departure from criticality and could open the way to novel perspectives when the conserved magnetization is interpreted in terms of a homeostatic principle imposed to neural activity.
Disciplines :
Neurosciences & behavior
Author, co-author :
Stramaglia, Sebastiano;  Dipartimento di Fisica, Università degli Studi di Bari, Bari, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari, Italy, Center of Innovative Technologies for Signal Detection and Processing TIRES, Universit di Bari, Bari, Italy, BCAM-The Basque Center for Applied Mathematics, Bilbao, Spain
Pellicoro, Mario F.;  Dipartimento di Fisica, Università degli Studi di Bari, Bari, Italy
Angelini, Leonardo;  Dipartimento di Fisica, Università degli Studi di Bari, Bari, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari, Italy, Center of Innovative Technologies for Signal Detection and Processing TIRES, Universit di Bari, Bari, Italy
Amico, Enrico;  Coma Science Group, University of Lie`ge, Liège, Belgium, Faculty of Psychology and Educational Sciences, Department of Data Analysis, Ghent University, Ghent, Belgium
Aerts, Hannelore;  Faculty of Psychology and Educational Sciences, Department of Data Analysis, Ghent University, Ghent, Belgium
Cortés, Jesús M.;  Ikerbasque, The Basque Foundation for Science, Bilbao, Spain, Biocruces Health Research Institute, Hospital Universitario de Cruces, Barakaldo, Spain
Laureys, Steven  ;  Université de Liège - ULiège > GIGA : Coma Group
Marinazzo, Daniele;  Faculty of Psychology and Educational Sciences, Department of Data Analysis, Ghent University, Ghent, Belgium
Language :
English
Title :
Ising model with conserved magnetization on the human connectome: Implications on the relation structure-function in wakefulness and anesthesia
Publication date :
2017
Journal title :
Chaos
ISSN :
1054-1500
eISSN :
1089-7682
Publisher :
American Institute of Physics Inc.
Volume :
27
Issue :
4
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 April 2020

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