Differences Between Preterm and Full-Term Infants in Electroencephalogram Power Spectral Density Slope

IF 1.8 4区心理学 Q3 DEVELOPMENTAL BIOLOGY Developmental psychobiology Pub Date : 2024-11-05 DOI:10.1002/dev.70001

Jennifer Hammond, Rakesh Sahni, Philip Grieve, Joseph Isler, Elizabeth Werner, Brendan Ostlund, Daniel Alschuler, Seonjoo Lee, Catherine Monk

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Abstract

A growing body of literature suggests that power spectral density (PSD) slope, measured using electroencephalography (EEG), might reflect synaptic activity and be a useful marker of early brain development. The objective of this article is to identify differences between preterm and full-term infants in PSD slope in active and quiet sleep. This is a secondary analysis of two studies, including premature (N = 33) (30 0/7 and 36 0/7 weeks’ gestation) and full-term infants (N = 22). EEG was performed at near term-equivalent age in premature infants and within 36 h after birth in full-term infants. The natural log of the EEG power spectrum was plotted versus the natural log of the frequency spectrum. To estimate PSD slope, the power law exponent derived from the slope of the log(power) versus log(frequency) was calculated for the 1–20 Hz range and the 21–40 Hz range. Linear regression models were fit for each region in active and quiet sleep to examine the association between the PSD slope and infant age group. Preterm versus full-term infants demonstrated a less negative slope across multiple brain regions in active and quiet sleep. PSD slope may be an early measure of altered brain development in premature infants.

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早产儿和足月儿脑电图功率谱密度斜率的差异。

越来越多的文献表明，利用脑电图（EEG）测量的功率谱密度（PSD）斜率可反映突触活动，是早期大脑发育的有用标记。本文旨在确定早产儿和足月儿在活跃睡眠和安静睡眠中功率谱密度斜率的差异。这是两项研究的二次分析，包括早产儿（N = 33）（妊娠 30 0/7 周和 36 0/7 周）和足月儿（N = 22）。早产儿在接近足月时进行脑电图检查，足月儿在出生后 36 小时内进行脑电图检查。脑电图功率谱的自然对数与频谱的自然对数相对应。为了估计 PSD 斜率，计算了 1-20 Hz 和 21-40 Hz 范围内 log（功率）与 log（频率）斜率的幂律指数。对活跃睡眠和安静睡眠中的每个区域都拟合了线性回归模型，以研究 PSD 斜率与婴儿年龄组之间的关系。早产儿与足月儿相比，在活跃睡眠和安静睡眠中的多个脑区的负斜率较小。PSD斜率可能是早产儿大脑发育改变的早期测量指标。

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来源期刊

Developmental psychobiology 生物-发育生物学

CiteScore

4.20

自引率

18.20%

发文量

125

审稿时长

6-12 weeks

期刊介绍： Developmental Psychobiology is a peer-reviewed journal that publishes original research papers from the disciplines of psychology, biology, neuroscience, and medicine that contribute to an understanding of behavior development. Research that focuses on development in the embryo/fetus, neonate, juvenile, or adult animal and multidisciplinary research that relates behavioral development to anatomy, physiology, biochemistry, genetics, or evolution is appropriate. The journal represents a broad phylogenetic perspective on behavior development by publishing studies of invertebrates, fish, birds, humans, and other animals. The journal publishes experimental and descriptive studies whether carried out in the laboratory or field. The journal also publishes review articles and theoretical papers that make important conceptual contributions. Special dedicated issues of Developmental Psychobiology , consisting of invited papers on a topic of general interest, may be arranged with the Editor-in-Chief. Developmental Psychobiology also publishes Letters to the Editor, which discuss issues of general interest or material published in the journal. Letters discussing published material may correct errors, provide clarification, or offer a different point of view. Authors should consult the editors on the preparation of these contributions.