摘要
目的探讨不同日龄新生儿认知发展特征。方法2013年12月至2015年9月人住常州市儿童医院新生儿科的相对正常足月患儿中随机选择不同日龄的新生儿62例,采用听觉Oddball范式记录脑电图及事件相关电位(event related potential,ERP),比较不同日龄(1~10d、11~20d和21~28d)新生儿认知脑电6功率和ERPN2波面积。采用配对t检验、方差分析及LSD检验进行统计学分析。结果(1)新生儿静息及认知状态下8功率比较:日龄11~20d组和日龄21~28d组新生儿认知8功率分别为(268.22±132.09)和(236.01±97.40)μV^2,明显高于同日龄静息8功率[分别为(175.80+80.80)和(178.78±104.74)μV^2,t值分别为2.539和2.845,P值分别为0.020和0.0101。(2)不同日龄新生儿认知8功率比较:新生儿认知8功率在日龄11~20d组和21~28d组分别为(268.22±132.09)和(236.01±97.40)μV^2,均高于日龄1~10d组[(116.70±56.70)μV^2],差异均有统计学意义(LSD检验,P值均〈0.05)。(3)不同日龄新生儿ERPN2波面积比较:日龄1~10d组新生儿ERP呈现多个波峰的低平复合波,在日龄11~20d组和21~28d组可见N2渐呈波形规整、高耸的趋势,并渐趋为单波,波形逐渐成熟。日龄11~20d组和21~28d组N2波面积分别为(6435.08±2212.34)和(6536.75±1969.86)ms·μV,高于日龄1~10d组[(4230.04±1550.55)ms·μV],差异均有统计学意义(LSD检验,P值均〈0.05)。结论新生儿认知能力随日龄增强,尤其是日龄11~20d可能为认知发展较迅速的时期。
Objective To investigate the characteristics of cognitive development in different aged neonates. Methods Sixty two newborns were randomly selected from relatively normal full-term babies in Changzhou Children's Hospital from December 2013 to September 2015. Electroencephalogram (EEG) and event-related potentials (ERP) were recorded with the auditory Oddball paradigm. Cognitive EEG delta power and the N2 wave area of different ages (1-10, 11 20 and 2]-28 days) were compared. Paired t test, analysis of variance and the LSD test were used for statistical analysis. Results (1) Delta power in the resting and cognition state: neonatal cognitive delta power in the 11 20 and 21-28 days old groups was (268.22± 132.09) and (236.01±97.40)μV^2, respectively, significantly higher than the resting delta power of the same groups [(175.80±80.80) and (178.78± 104.74)μV^2, t=2.539 and 2.845, P=0.020 and 0.010, respectively]. (2) Cognitive delta power in different aged neonates: cognitive delta power in the 11-20 and 21-28 days old groups was (268.22 ± 132.09) and (236.01 ± 97.40) μV^2, respectively, higher than that of the 1-10 days old group [(116.70 ±56.70) μV^2], with statistically significant difference (LSD test, both P〈0.05). (3) Neonatal ERP: ERP of the 110 days old group presented with multiple peaks of a flat composite wave, in the 11 20 and 21-28 daysold groups, the N2 wave showed a regular and rising trend, gradually to a single wave, and became gradually mature. The N2 wave area in the 11-20 and 21-28 days old groups was (6 435.08±2 212.34) and (6 536.75± 1 969.86) ms·μ V, respectively, which was larger than that in the 1- 10 days old group [(4 230.04 ±1 550.55) ms ·μV] (LSD test, both P〈0.05). Conclusions Neonatal cognitive development is enhanced with age and there may be a period of more rapid cognitive development, especially at 11-20 days of age.
出处
《中华围产医学杂志》
CAS
CSCD
2016年第8期592-595,共4页
Chinese Journal of Perinatal Medicine
基金
江苏省科技计划项目(BK20161194)
常州市科技支撑计划项目(CE20135045)
关键词
声刺激
认知
脑电描记术
诱发电位
婴儿
新生
Acoustic stimulation
Cognition
Electroencephalography
Evoked potentials
Infant, newborn
作者简介
通信作者:董选,Email:dx6868@hotmail.com