Short- and long-term stability of alpha asymmetry in infants: Baseline and affective measures
Short- and long-term stability of alpha asymmetry in infants: Baseline and affective measures
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DOI：
10.1111/psyp.12866
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发表时间：
2017-08-01
期刊：
影响因子：
3.7
通讯作者：
Goldsmith, H. Hill
中科院分区：
文献类型：
--
作者：
Brooker, Rebecca J.;Canen, Mara J.;Goldsmith, H. Hill
大脑皮层活动的不对称性测试了婴儿出生后第一年的短期和长期稳定性。婴儿（N = 129）共完成四次实验室访问：婴儿6个月大时两次访问间隔约1周，婴儿12个月大时两次访问间隔约1周。在每次实验室访问中，在5个1分钟中性基线期间以及在消极和积极情绪引发任务期间采集脑电图读数。在正中额（F3/4、F7/8）和顶叶（P3/4）电极位置评估半球不对称的稳定性。基线和恐惧诱发发作的不对称表现为中度短期稳定性。在6个月和12个月综合评估时，长期稳定性明显。在基线记录中，额叶不对称大于顶叶不对称。在积极情绪任务中，几乎没有证据表明不对称性是稳定的。结果讨论了关于收集和解释α不对称措施在婴儿期。
Asymmetry in cortical activity was tested for short- and long-term stability during the first year of life. Infants (N = 129) completed a total of four laboratory visits: two visits occurred about 1 week apart when infants were 6 months old, and two visits occurred about 1 week apart when infants were 12 months of age. At each laboratory visit, EEG readings were taken during five 1-min, neutral baselines as well as during a negative and a positive emotion-eliciting task. The stability of hemispheric asymmetry was assessed at midfrontal (F3/4, F7/8) and parietal (P3/4) electrode sites. Asymmetry in baseline and fear-eliciting episodes showed moderate short-term stability. Long-term stability was apparent when assessments were composited at 6 months and 12 months. Frontal asymmetry was greater than parietal asymmetry for baseline recordings. There was minimal evidence for stability in asymmetry during positive emotion tasks. Results are discussed with regard to the collection and interpretation of alpha asymmetry measures during infancy.