The emergence of the EEG dominant rhythm across the first year of life.

Autor:	Elhamiasl M; Department of Psychology, University of Florida, Gainesville, FL 32611, United States., Sanches Braga Figueira J; Department of Psychology, University of Florida, Gainesville, FL 32611, United States., Barry-Anwar R; Department of Psychology, University of Florida, Gainesville, FL 32611, United States., Pestana Z; Department of Psychology, University of California, Davis, CA 95616, United States., Keil A; Department of Psychology, University of Florida, Gainesville, FL 32611, United States., Scott LS; Department of Psychology, University of Florida, Gainesville, FL 32611, United States.
Jazyk:	angličtina
Zdroj:	Cerebral cortex (New York, N.Y. : 1991) [Cereb Cortex] 2024 Jan 14; Vol. 34 (1).
DOI:	10.1093/cercor/bhad425
Abstrakt:	The spectral composition of EEG provides important information on the function of the developing brain. For example, the frequency of the dominant rhythm, a salient features of EEG data, increases from infancy to adulthood. Changes of the dominant rhythm during infancy are yet to be fully characterized, in terms of their developmental trajectory and spectral characteristics. In this study, the development of dominant rhythm frequency was examined during a novel sustained attention task across 6-month-old (n = 39), 9-month-old (n = 30), and 12-month-old (n = 28) infants. During this task, computer-generated objects and faces floated down a computer screen for 10 s after a 5-second fixation cross. The peak frequency in the range between 5 and 9 Hz was calculated using center of gravity (CoG) and examined in response to faces and objects. Results indicated that peak frequency increased from 6 to 9 to 12 months of age in face and object conditions. We replicated the same result for the baseline. There was high reliability between the CoGs in the face, object, and baseline conditions across all channels. The developmental increase in CoG was more reliable than measures of mode frequency across different conditions. These findings suggest that CoG is a robust index of brain development across infancy. (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu