Functional connectivity patterns of human magnetoencephalographic recordings: a 'small-world' network? - PubMed (original) (raw)
Functional connectivity patterns of human magnetoencephalographic recordings: a 'small-world' network?
C J Stam. Neurosci Lett. 2004.
Abstract
EEG and MEG (magnetoencephalography) are widely used to study functional connectivity between different brain regions. We address the question whether such connectivity patterns display an optimal organization for information processing. MEG recordings of five healthy human subjects were converted to sparsely connected graphs (N=126; k=15) by applying a suitable threshold to the N * N matrix of synchronization strengths. For intermediate frequencies (8-30 Hz) the synchronization patterns were similar to those of an ordered graph with a consistent drop of synchronization strength as a function of distance. For low (<8 Hz) and high (>30 Hz) frequency bands the synchronization patterns displayed the features of a so-called 'small-world' network. This might reflect an optimal organization pattern for information processing, connecting any two brain area by only a small number of intermediate steps.
Similar articles
- Functional connectivity analysis in magnetoencephalography.
Schnitzler A, Gross J. Schnitzler A, et al. Int Rev Neurobiol. 2005;68:173-95. doi: 10.1016/S0074-7742(05)68007-5. Int Rev Neurobiol. 2005. PMID: 16443014 Review. No abstract available. - Disturbed functional connectivity in brain tumour patients: evaluation by graph analysis of synchronization matrices.
Bartolomei F, Bosma I, Klein M, Baayen JC, Reijneveld JC, Postma TJ, Heimans JJ, van Dijk BW, de Munck JC, de Jongh A, Cover KS, Stam CJ. Bartolomei F, et al. Clin Neurophysiol. 2006 Sep;117(9):2039-49. doi: 10.1016/j.clinph.2006.05.018. Epub 2006 Jul 21. Clin Neurophysiol. 2006. PMID: 16859985 - Heritability of "small-world" networks in the brain: a graph theoretical analysis of resting-state EEG functional connectivity.
Smit DJ, Stam CJ, Posthuma D, Boomsma DI, de Geus EJ. Smit DJ, et al. Hum Brain Mapp. 2008 Dec;29(12):1368-78. doi: 10.1002/hbm.20468. Hum Brain Mapp. 2008. PMID: 18064590 Free PMC article. - Exploring mechanisms of spontaneous functional connectivity in MEG: how delayed network interactions lead to structured amplitude envelopes of band-pass filtered oscillations.
Cabral J, Luckhoo H, Woolrich M, Joensson M, Mohseni H, Baker A, Kringelbach ML, Deco G. Cabral J, et al. Neuroimage. 2014 Apr 15;90:423-35. doi: 10.1016/j.neuroimage.2013.11.047. Epub 2013 Dec 7. Neuroimage. 2014. PMID: 24321555 - The application of graph theoretical analysis to complex networks in the brain.
Reijneveld JC, Ponten SC, Berendse HW, Stam CJ. Reijneveld JC, et al. Clin Neurophysiol. 2007 Nov;118(11):2317-31. doi: 10.1016/j.clinph.2007.08.010. Epub 2007 Sep 27. Clin Neurophysiol. 2007. PMID: 17900977 Review.
Cited by
- Graph network analysis of immediate motor-learning induced changes in resting state BOLD.
Sami S, Miall RC. Sami S, et al. Front Hum Neurosci. 2013 May 15;7:166. doi: 10.3389/fnhum.2013.00166. eCollection 2013. Front Hum Neurosci. 2013. PMID: 23720616 Free PMC article. - Change in brain network topology as a function of treatment response in schizophrenia: a longitudinal resting-state fMRI study using graph theory.
Hadley JA, Kraguljac NV, White DM, Ver Hoef L, Tabora J, Lahti AC. Hadley JA, et al. NPJ Schizophr. 2016 Apr 27;2:16014. doi: 10.1038/npjschz.2016.14. eCollection 2016. NPJ Schizophr. 2016. PMID: 27336056 Free PMC article. - Capturing dynamic patterns of task-based functional connectivity with EEG.
Karamzadeh N, Medvedev A, Azari A, Gandjbakhche A, Najafizadeh L. Karamzadeh N, et al. Neuroimage. 2013 Feb 1;66:311-7. doi: 10.1016/j.neuroimage.2012.10.032. Epub 2012 Nov 6. Neuroimage. 2013. PMID: 23142654 Free PMC article. - Graph theoretical analysis of complex networks in the brain.
Stam CJ, Reijneveld JC. Stam CJ, et al. Nonlinear Biomed Phys. 2007 Jul 5;1(1):3. doi: 10.1186/1753-4631-1-3. Nonlinear Biomed Phys. 2007. PMID: 17908336 Free PMC article. - Adaptive reconfiguration of fractal small-world human brain functional networks.
Bassett DS, Meyer-Lindenberg A, Achard S, Duke T, Bullmore E. Bassett DS, et al. Proc Natl Acad Sci U S A. 2006 Dec 19;103(51):19518-23. doi: 10.1073/pnas.0606005103. Epub 2006 Dec 11. Proc Natl Acad Sci U S A. 2006. PMID: 17159150 Free PMC article.