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Τετάρτη 29 Σεπτεμβρίου 2021

Infant repetition effects and change detection: Are they related to adaptive skills?

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Eur J Neurosci. 2021 Sep 28. doi: 10.1111/ejn.15475. Online ahead of print.

ABSTRACT

Repetition effects and change detection response have been proposed as neuro-electrophysiological correlates of fundamental learning processes. As such, they could be a good predictor of brain maturation and cognitive development. We recorded high density EEG in 71 healthy infants (32 females) aged between 3 and 9 months while they listened to vowel sequences [standard/a/a/a/i/ (80%) and deviant/a/a/a/a/ (20%)]. Adaptive skills, a surrogate of cognitive development, were measured via the parent form of the Adaptive Behavior Assessment System Second Edition (ABAS-II). Cortical auditory evoked potentials (CAEPs) analyses, time-frequency analyses and a statistical approach using linear mixed models (LMM) and linear regression models were performed. Age and adaptive skills were tested as predictors. Age modulation of repetition effects and change detection respon se was observed in theta (3-5Hz), alpha (5-10Hz), and high gamma (80-90Hz) oscillations and in all CAEPs. Moreover, adaptive skills modulation of repetition effects was evidenced in theta (3-5Hz), high gamma oscillations (80-90Hz), N250/P350 peak-to-peak amplitude and P350 latency. Finally, adaptive skills modulation of change detection response was observed in the N250/P350 peak-to-peak amplitude. Our results confirm that repetition effects and change detection response evolve with age. Moreover, our results suggest that repetition effects and change detection response vary according to adaptive skills displayed by infants during the first year of life, demonstrating their predictive value for neurodevelopment.

PMID:34585451 | DOI:10.1111/ejn.15475

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