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Harnessing functional segregation across brain rhythms as a means to detect EEG oscillatory multiplexing during music listening

Dimitrios A Adamos, Nikolaos A Laskaris, Sifis Micheloyannis
2018 Journal of Neural Engineering  
Our methodology includes an efficient graph-partitioning algorithm, which is further utilized for mining prototypical modular patterns, and a novel algorithmic procedure for identifying switching nodes  ...  Our results suggest the multiplex character of the music-induced functional reorganization and particularly indicate the dependence between the networks reconstructed from the δ and βH rhythms.  ...  the form of a [29×29] adjacency matrix representing a connectivity graph built over the 29 sensors.  ... 
doi:10.1088/1741-2552/aaac36 pmid:29386407 fatcat:j2fajmnd2be53guzozz6n53cyq

Identifying supersingular elliptic curves

Andrew V. Sutherland
2012 LMS Journal of Computation and Mathematics  
We analyze the complexity of several existing algorithms and then present a new approach that exploits structural differences between ordinary and supersingular isogeny graphs.  ...  Both these complexity bounds are significant improvements over existing methods, as we demonstrate with some practical computations.  ...  I am grateful to David Kohel for his feedback on an early draft of this paper, and for showing how to tighten the bound in Proposition 1.  ... 
doi:10.1112/s1461157012001106 fatcat:ik5o44ttkzcirgry5evsw6m7ea

Life-span development of functional brain networks as assessed with minimum spanning tree analysis of resting state EEG [article]

Dirk Smit, Eco J.C. de Geus, Maria Boersma, Dorret I Boomsma, Cornelis J Stam
2015 bioRxiv   pre-print
Graph analysis of EEG has previously revealed increased connectivity between distant brain areas and a decrease in randomness and increased integration in the brain network with concurrent increased modularity  ...  The brain matures with large quantitative changes in anatomy and function.  ...  Acknowledgements This work was supported by grants Twin-family database for behavior genetics and genomics studies  ... 
doi:10.1101/022038 fatcat:hu76bqytwzanbbjwcqrysradre

Adaptive frequency decomposition of EEG with subsequent expert system analysis

C.S Herrmann, T Arnold, A Visbeck, H.-P Hundemer, H.C Hopf
2001 Computers in Biology and Medicine  
The system detects artefacts, describes alpha rhythm by frequency, amplitude, and stability and after artefact rejection detects pathologic slow activity.  ...  We present a hybrid system for automatic analysis of clinical routine EEG, comprising a spectral analysis and an expert system.  ...  The research work for this project is funded by the German Bundesministerium f ur Bildung und Forschung (federal ministry of education and research) grant number 0311462.  ... 
doi:10.1016/s0010-4825(01)00017-8 pmid:11604148 fatcat:jbkapve5inc7jhm7drlmxv7vs4

Phase synchrony analysis of EEG during music perception reveals changes in functional connectivity due to musical expertise

Joydeep Bhattacharya, Hellmuth Petsche
2005 Signal Processing  
Comparing the music listening task to rest or control condition, musicians showed increase in phase synchrony over distributed cortical areas, both near and distant, in delta, and most conspicuously in  ...  Differences in functional and topographical connectivity patterns between two groups, musicians and non-musicians, during attentively listening to three different pieces of music and to a text of neutral  ...  (i) For any arbitrary scalar signal x(t), the analytic signal, a complex function, is formed as x an ðtÞ ¼ xðtÞ þ ix HT ðtÞ xðtÞ þ 1 p Z þ1 À1 xðt 0 Þ t À t 0 dt 0 , where x HT (t) is the Hilbert Transform  ... 
doi:10.1016/j.sigpro.2005.07.007 fatcat:qmybiswjbzaklowkjske5fkdne

Spatiotemporal properties of Sub-Rayleigh and supershear rupture velocity fields: Theory and experiments

Michael Mello, Harsha S. Bhat, Ares J. Rosakis
2016 Journal of the mechanics and physics of solids  
Kinematic 65 form analytical solutions for the singular elastic stress and particle velocity fields radiated by a 2D steady-state shear crack.  ...  Sub-Rayleigh and intersonic crack field solutions were derived for the shear stress (σ 12 ) and fault-parallel velocity component (u 1 ).  ...  EAR-0911723), provided under the American Recovery and Reinvestment Act of 2009 (ARRA) (Public Law 111-5).  ... 
doi:10.1016/j.jmps.2016.02.031 fatcat:r4vnl2izkff3pmj2so7yj5k2c4

Life-Span Development of Brain Network Integration Assessed with Phase Lag Index Connectivity and Minimum Spanning Tree Graphs

Dirk J.A. Smit, Eco J.C. de Geus, Maria Boersma, Dorret I. Boomsma, Cornelis J. Stam
2016 Brain Connectivity  
brain network with concurrent increased modularity.  ...  Graph analysis of electroencephalography (EEG) has previously revealed developmental increases in connectivity between distant brain areas and a decrease in randomness and increased integration in the  ...  Next, the instantaneous phase for a signal X i is established using the Hilbert transform H(X i )(t) = atan(s(t)) þ H(s(t))i) where s(t) is the signal over time t, and H is the Hilbert transform, i is  ... 
doi:10.1089/brain.2015.0359 pmid:26885699 fatcat:v7mbyahi6zebnbm4dhhrs7pki4

Detecting projectivity in sheaves associated to representations of infinitesimal groups

Jim Stark
2015 Journal of Pure and Applied Algebra  
We consider sheaves over the projectivization P(G) of V(G) constructed from a G-module M. We show that if P(G) is regular then the sheaf H^[1](M) is zero if and only if M is projective.  ...  Along the way we will provide new proofs of some known results and correct some errors in the literature.  ...  [FPS] , and Friedlander and Pevtsova [FP2] . The Young diagram of a partition will be a useful visualization tool.  ... 
doi:10.1016/j.jpaa.2014.07.013 fatcat:7n653s7iwzhsjd3duxk3zlntbq

Neuroadaptive technology: concepts, tools, and validations [article]

Laurens R. Krol, Technische Universität Berlin, Thorsten O. Zander, Klaus Gramann
2020
These experiments thus highlight both the potential benefits and the potential ethical, legal, and societal concerns of neuroadaptive technology.  ...  This dissertation presents conceptual, methodological, and experimental advances in the field of neuroadaptive technology.  ...  The authors thank Mahta Mousavi for the band-pass filter design, Stefan Haufe for the autoregressive signal generation code and accompanying support, and Ramón Martínez-Cancino for his assistance with  ... 
doi:10.14279/depositonce-10656 fatcat:5p3h7jwypjbavpprynl7iauuti

DOTTORATO DI RICERCA IN BIOINGEGNERIA Ciclo XXVII COGNITIVE ASSESSMENT AND REHABILITATION OF SUBJECTS WITH TRAUMATIC BRAIN INJURY

Anna Lisa, Mangia Supervisor, Prof Cappello, Serenella Coodinator, Salinari, Elisa Ssa, Magosso
unpublished
form of motor imagery) and the answer word to a question (yes or no).  ...  Thanks to the modularity of the application, it will be simple and fast to complete the platform with new rehabilitation exercises.  ...  PAS condition with respect the B, SS and PSS (p<0.01/36).  ... 
fatcat:te7uhe36tfffzebrxfxc2yed6u

More Than One - Observing Human Brains in Uncommon Interaction Scenarios

Nils Hachmeister
2020
As this research advances, though, the results will undoubtedly shed light on important aspects of human interaction and human-machine interaction and can be expected to have major impact on the design  ...  The main method for this evaluation is hyper-scanning and -analysis aiming for neural c [...]  ...  The software suit features a modular design and is easily extensible.  ... 
doi:10.4119/unibi/2946075 fatcat:otg5tkigozem7nconloycqydli

Modeling Heart and Brain signals in the context of Wellbeing and Autism Applications: A Deep Learning Approach [article]

Mayor Torres Juan Manuel
2020
from six critical channels Fpl, Fp2, C3, C4, F3, and F4 3 layers Semi-supervised Deep RBM, and SVM, KNN, and ANN base- lines.  ...  were saved separately but identified with the corresponding code per participant.  ...  6.6, and 6.7.  ... 
doi:10.15168/11572_247209 fatcat:raidwnxldbfjzn2qkq3peg3aq4