Cited by 110Functional Brain Connectivity StudiesAdvanced MRI Techniques and ApplicationsAdvanced Neuroimaging Techniques and Applications

Functional connectivity of the sensorimotor area in naturally sleeping infants

Liu, Wen-Ching, Flax, Judy F., Guise, Kevin G., Sukul, Vishad, Benasich, April A.·2008·Brain Research

Abstract

Patterns of cortical functional connectivity in normal infants were examined during natural sleep by observing the time course of very low frequency oscillations. Such oscillations represent fluctuations in blood oxygenation level and cortical blood flow thus allowing computation of neurophysiologic connectivity. Structural and resting-state information were acquired for 11 infants, with a mean age of 12.8 months, using a GE 1.5 T MR scanner. Resting-state data were processed and significant functional connectivity within the sensorimotor area was identified using independent component analysis. Unilateral functional connectivity in the developing sensory-motor cortices was observed. Power spectral analysis showed that slow frequency oscillations dominated the hemodynamic signal at this age, with, on average, a peak frequency for all subjects of 0.02 Hz. Our data suggest that there is more intrahemispheric than interhemispheric connectivity in the sensorimotor area of naturally sleeping infants. This non-invasive imaging technique, developed to allow reliable scanning of normal infants without sedation, enabled computation of neurophysiologic connectivity for the first time in naturally sleeping infants. Such techniques permit elucidation of the role of slow cortical oscillations during early brain development and may reveal critical information regarding the normative development and lateralization of brain networks across time.

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Crossref · 10.1016/j.brainres.2008.05.054

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Authors
Liu, W.-C., Flax, J. F., Guise, K. G., Sukul, V., & Benasich, A. A.
Affiliations
  • Rutgers New Jersey Medical School (US)
  • Rutgers, The State University of New Jersey (US)
Corresponding author
Liu, Wen-Ching
Venue
Brain Research
Publisher
Elsevier BV
Published
2008-08
Volume
1223
Pages
42-49
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2056586830
Cited by
110
References
52
Citations by year
2026: 3 · 2025: 8 · 2024: 8 · 2022: 8 · 2021: 6 · 2020: 7 · 2019: 4 · 2018: 6 · 2017: 3 · 2016: 6 · 2015: 2 · 2014: 7 · 2013: 15 · 2012: 7
FWCI
3.44
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • Rutgers University Community Repository (Rutgers University) (submittedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD029419, R01 HD 29419)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
Keywords
functional connectivity, sensorimotor cortex, infant sleep, very low frequency oscillations, resting-state fMRI, hemodynamic signals, hemispheric lateralization, brain development, independent component analysis
MeSH terms
Action Potentials, Aging, Biological Clocks, Brain Mapping, Cerebral Arteries, Cerebrovascular Circulation, Evoked Potentials, Female, Humans, Infant, Functional Laterality, Magnetic Resonance Imaging, Male, Motor Cortex, Nerve Net, Neural Pathways, Oxygen Consumption, Sleep, Somatosensory Cortex

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