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- W2953532693 abstract "During infancy, the human brain rapidly expands in size and complexity as neural networks mature and new information is incorporated at an accelerating pace. Recently, it was shown that single-electrode EEG in preterms at birth exhibits scale-invariant intermittent bursts. Yet, it is currently not known whether the normal infant brain, in particular, the cortex, maintains a distinct dynamical state during development that is characterized by scale-invariant spatial as well as temporal aspects. Here we employ dense-array EEG recordings acquired from the same infants at 6 and 12 months of age to characterize brain activity during an auditory odd-ball task. We show that suprathreshold events organize as spatiotemporal clusters whose size and duration are power-law distributed, the hallmark of neuronal avalanches. Time series of local suprathreshold EEG events display significant long-range temporal correlations (LRTCs). No differences were found between 6 and 12 months, demonstrating stability of avalanche dynamics and LRTCs during the first year after birth. These findings demonstrate that the infant brain is characterized by distinct spatiotemporal dynamical aspects that are in line with expectations of a critical cortical state. We suggest that critical state dynamics, which theory and experiments have shown to be beneficial for numerous aspects of information processing, are maintained by the infant brain to process an increasingly complex environment during development." @default.
- W2953532693 created "2019-07-12" @default.
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- W2953532693 date "2020-02-24" @default.
- W2953532693 modified "2023-10-13" @default.
- W2953532693 title "Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infants" @default.
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- W2953532693 doi "https://doi.org/10.1007/s00429-019-02014-4" @default.
- W2953532693 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7166209" @default.
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