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RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant

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 k...

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Autores principales: Jannesari, Mostafa, Saeedi, Alireza, Zare, Marzieh, Ortiz-Mantilla, Silvia, Plenz, Dietmar, Benasich, April A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6698269/
https://www.ncbi.nlm.nih.gov/pubmed/31267171
http://dx.doi.org/10.1007/s00429-019-01918-5
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author Jannesari, Mostafa
Saeedi, Alireza
Zare, Marzieh
Ortiz-Mantilla, Silvia
Plenz, Dietmar
Benasich, April A.
author_facet Jannesari, Mostafa
Saeedi, Alireza
Zare, Marzieh
Ortiz-Mantilla, Silvia
Plenz, Dietmar
Benasich, April A.
author_sort Jannesari, Mostafa
collection PubMed
description 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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spelling pubmed-66982692019-08-29 RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant Jannesari, Mostafa Saeedi, Alireza Zare, Marzieh Ortiz-Mantilla, Silvia Plenz, Dietmar Benasich, April A. Brain Struct Funct Original Article 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. Springer Berlin Heidelberg 2019-07-02 2019 /pmc/articles/PMC6698269/ /pubmed/31267171 http://dx.doi.org/10.1007/s00429-019-01918-5 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Jannesari, Mostafa
Saeedi, Alireza
Zare, Marzieh
Ortiz-Mantilla, Silvia
Plenz, Dietmar
Benasich, April A.
RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
title RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
title_full RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
title_fullStr RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
title_full_unstemmed RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
title_short RETRACTED ARTICLE: Stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
title_sort retracted article: stability of neuronal avalanches and long-range temporal correlations during the first year of life in human infant
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6698269/
https://www.ncbi.nlm.nih.gov/pubmed/31267171
http://dx.doi.org/10.1007/s00429-019-01918-5
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