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  Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant

Jannesari, M., Saeedi, A., Zare, M., Ortiz-Mantilla, S., Plenz, D., & Benasich, A. (2019). Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant. Brain Structure & Function, 224(7), 2453-2465. doi:10.1007/s00429-019-01918-5.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-FE31-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-8319-C
Genre: Journal Article

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Jannesari, M, Author
Saeedi, A1, 2, Author              
Zare, M, Author
Ortiz-Mantilla, S, Author
Plenz, D, Author
Benasich, AA, Author
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 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 oddball 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.

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 Dates: 2019-072019-09
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/s00429-019-01918-5
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Title: Brain Structure & Function
  Abbreviation : Brain Struct Funct
Source Genre: Journal
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Publ. Info: Berlin : Springer
Pages: - Volume / Issue: 224 (7) Sequence Number: - Start / End Page: 2453 - 2465 Identifier: ISSN: 1863-2653
CoNE: https://pure.mpg.de/cone/journals/resource/1863-2653