The spectral diversity of resting-state fluctuations in the human brain

In order to assess whole-brain resting-state fluctuations at a wide range of frequencies, resting-state fMRI data of 20 healthy subjects were acquired using a multiband EPI sequence with a low TR (354 ms) and compared to 20 resting-state datasets from standard, high-TR (1800 ms) EPI scans. The spati...

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Bibliographic Details
Published in:PloS one 2014-04, Vol.9 (4), p.e93375-e93375
Main Authors: Kalcher, Klaudius, Boubela, Roland N, Huf, Wolfgang, Bartova, Lucie, Kronnerwetter, Claudia, Derntl, Birgit, Pezawas, Lukas, Filzmoser, Peter, Nasel, Christian, Moser, Ewald
Format: Article
Language:English
Subjects:
Aliasing
Analysis
Bandpass filters
Biology and Life Sciences
Biomedical engineering
Brain
Brain - physiology
Brain mapping
Brain research
Cerebrospinal fluid
Correlation analysis
Cortex
Data processing
Datasets
Engineering
Fluctuations
Frequency ranges
Functional magnetic resonance imaging
Health physics
Hemodynamics
Humans
Magnetic Resonance Imaging
Medicine and Health Sciences
Neural networks
Oscillations
Pattern recognition
Physical Sciences
Physics
Physiology
Power spectra
Psychiatry
Psychotherapy
Rest - physiology
Sequences
Spatial distribution
Studies
Substantia alba
Substantia grisea
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Summary:In order to assess whole-brain resting-state fluctuations at a wide range of frequencies, resting-state fMRI data of 20 healthy subjects were acquired using a multiband EPI sequence with a low TR (354 ms) and compared to 20 resting-state datasets from standard, high-TR (1800 ms) EPI scans. The spatial distribution of fluctuations in various frequency ranges are analyzed along with the spectra of the time-series in voxels from different regions of interest. Functional connectivity specific to different frequency ranges (
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0093375