Brain Scale-free Properties in Awake Rest and NREM Sleep: A Simultaneous EEG/fMRI Study

Boly M, Perlbarg V, Marrelec G, Schabus M, Laureys S, Doyon J, Pelegrini-Issac M, Maquet P, Benali H (2012) Hierarchical clustering of brain activity during human nonrapid eye movement sleep. Proc Natl Acad Sci USA 109(15):5856–5861

Bressler SL, Tognoli E (2006) Operational principles of neurocognitive networks. Int J Psychophysiol 60:139–148

Britz J, Van De Ville D, Michel CM (2010) BOLD correlates of EEG topography reveal rapid resting-state network dynamics. Neuroimage 52(4):1162–1170

Bullmore E, Sporns O (2012) The economy of brain network organization. Nat Rev Neurosci 13(5):336–349

Calhoun VD, Adali T, Pearlson GD, Pekar JJ (2001) A method for making group inferences from functional MRI data using independent component analysis. Hum Brain Mapp 14(3):140–151

Ciuciu P, Varoquaux G, Abry P, Sadaghiani S, Kleinschmidt A (2012) Scale-free and multifractal time dynamics of fMRI signals during rest and task. Front Physiol 3:186

Ciuciu P, Abry P, He BJ (2014) Interplay between functional connectivity and scale-free dynamics in intrinsic fMRI networks. Neuroimage. doi: 10.1016/j.neuroimage.2014.1003.1047

Clauset A, Shalizi C, Newman M (2007) Power-law distributions in empirical data. SIAM Rev 51(4):661–703 ArXiv 706

Fox MD, Zhang D, Snyder AZ, Raichle ME (2009) The global signal and observed anticorrelated resting state brain networks. J Neurophysiol 101(6):3270–3283

Fransson P, Metsäranta M, Blennow M, Åden U, Lagercrantz H, Vanhatalo S (2013) Early development of spatial patterns of power-law frequency scaling in fMRI resting-state and EEG data in the newborn brain. Cereb Cortex 23(3):638–646

Fukunaga M, Horovitz SG, van Gelderen P, de Zwart JA, Jansma JM, Ikonomidou VN, Chu RX, Deckers RHR, Leopold DA, Duyn JH (2006) Large-amplitude, spatially correlated fluctuations in BOLD fMRI signals during extended rest and early sleep stages. Magn Reson Imaging 24(8):979–992

Hahn T, Dresler T, Ehlis AC, Pyka M, Dieler AC, Saathoff C, Jakob PM, Lesch KP, Fallgatter AJ (2012) Randomness of resting-state brain oscillations encodes Gray’s personality trait. Neuroimage 59(2):1842–1845

He BJ, Raichle ME (2009) The fMRI signal, slow cortical potential and consciousness. Trends Cogn Sci 13(7):302–309

He BJ, Zempel JM, Snyder AZ, Raichle ME (2010) The temporal structures and functional significance of scale-free brain activity. Neuron 66(3):353–369

Hwa R, Ferree T (2002) Scaling properties of fluctuations in the human electroencephalogram. Phys Rev E 66:021901

Iber C, Ancoli-Israel S, Chesson A, Quan S (2007) The AASM manual for the scoring of sleep and associated events: rules, terminology and technical specifications. American Association of Sleep Medicine, Westchester

Kaufmann C, Wehrle R, Wetter TC, Holsboer F, Auer DP, Pollmächer T, Czisch M (2006) Brain activation and hypothalamic functional connectivity during human non-rapid eye movement sleep: an EEG/fMRI study. Brain 129(3):655–667

Kiviniemi V, Ruohonen J, Tervonen O (2005) Separation of physiological very low frequency fluctuation from aliasing by switched sampling interval fMRI scans. Magn Reson Imaging 23(1):41–46

Lei X, Qiu C, Xu P, Yao D (2010) A parallel framework for simultaneous EEG/fMRI analysis: methodology and simulation. Neuroimage 52(3):1123–1134

Lei X, Xu P, Luo C, Zhao J, Zhou D, Yao D (2011) fMRI functional networks for EEG source imaging. Hum Brain Mapp 32:1141–1160

Lei X, Zhao Z, Chen H (2013) Extraversion is encoded by scale-free dynamics of default mode network. Neuroimage 74:52–57

Lei X, Wang Y, Yuan H, Mantini D (2014) Neuronal oscillations and functional interactions between resting state networks: effects of alcohol intoxication. Hum Brain Mapp 35(7):3517–3528

Mantini D, Perrucci MG, Del Gratta C, Romani GL, Corbetta M (2007) Electrophysiological signatures of resting state networks in the human brain. Proc Natl Acad Sci USA 104(32):13170–13175

Maxim V, Sendur L, Fadili J, Suckling J, Gould R, Howard R, Bullmore E (2005) Fractional Gaussian noise, functional MRI and Alzheimer’s disease. Neuroimage 25(1):141–158

Steriade M, McCormick DA, Sejnowski TJ (1993) Thalamocortical oscillations in the sleeping and aroused brain. Science 262(5134):679–685

Tagliazucchi E, von Wegner F, Morzelewski A, Brodbeck V, Jahnke K, Laufs H (2013) Breakdown of long-range temporal dependence in default mode and attention networks during deep sleep. Proc Natl Acad Sci USA 110(38):15419–15424

Tian Y, Yao D (2013) Why do we need to use a zero reference? Reference influences on the ERPs of audiovisual effects. Psychophysiology 50(12):1282–1290. doi: 10.1111/psyp.12130

Yao D (2001) A method to standardize a reference of scalp EEG recordings to a point at infinity. Physiol Meas 22(4):693–711

Yao D, Wang L, Oostenveld R, Nielsen KD, Arendt-Nielsen L, Chen AC (2005) A comparative study of different references for EEG spectral mapping: the issue of the neutral reference and the use of the infinity reference. Physiol Meas 26(3):173–184