Title
Frequency And Dependence Of Long Range Temporal Correlations In Human Hippocampal Energy Fluctuations
Abstract
Spontaneous energy fluctuations in human hippocampal EEG show prominent amplitude and temporal variability. Here we show hippocampal energy fluctuations often exhibit long-range temporal correlations with power-law scaling. In most cases this scaling behavior persisted on time scales in excess of 10 minutes, the maximum duration we could detect with our recording durations. During these epochs we find that the energy fluctuations exhibit long-range correlations over a broad frequency range (0.5-100 Hz) with greater persistence of the correlations in the lower frequency bands (0.5-30 Hz) than the higher (30-100 Hz). The correlation in hippocampal energy fluctuations is characterized by a bias for energy fluctuations to be followed by similar magnitude fluctuations over all energy scales, i.e. large fluctuations begets large fluctuations and small begets small. (c) 2005 Wiley Periodicals, Inc.
Year
DOI
Venue
2005
10.1002/cplx.20088
COMPLEXITY
Keywords
Field
DocType
EEG, long-range correlations, hippocampus, epilepsy, scaling behavior
Magnitude (mathematics),Computational physics,Control theory,Statistics,Scaling,Amplitude,Hippocampal formation,Electroencephalography,Mathematics
Journal
Volume
Issue
ISSN
10
5
1076-2787
Citations 
PageRank 
References 
3
0.51
3
Authors
3
Name
Order
Citations
PageRank
Matt Stead1364.65
Gregory A Worrell210718.00
B. Litt3749.35