Auditory Recognition Memory in 2-Month-Old Infants as Assessed by Event-Related Potentials

被引：18

作者：

Mai, Xiaoqin ^{[2
]}

Xu, Lin ^{[1
]}

Li, Mingyan ^{[1
]}

Shao, Jie ^{[1
]}

Zhao, Zhengyan ^{[1
]}

deRegnier, Raye-Ann ^{[3
]}

Nelson, Charles A. ^{[4
]}

Lozoff, Betsy ^{[2
,5
]}

机构：

[1] Zhejiang Univ, Sch Med, Childrens Hosp, Hangzhou 310003, Zhejiang, Peoples R China

[2] Univ Michigan, Ctr Human Growth & Dev, Ann Arbor, MI 48109 USA

[3] Northwestern Univ, Dept Pediat, Feinberg Sch Med, Chicago, IL 60611 USA

[4] Harvard Univ, Sch Med, Childrens Hosp Boston, Boston, MA USA

[5] Univ Michigan, Dept Pediat & Communicable Dis, Ann Arbor, MI 48109 USA

来源：

DEVELOPMENTAL NEUROPSYCHOLOGY | 2012年 / 37卷 / 05期

基金：

中国国家自然科学基金; 美国国家卫生研究院;

关键词：

VOICE DISCRIMINATION; NEWBORN-INFANTS; VISUAL-STIMULI; SPEECH SOUNDS; ATTENTION; AGE; PREFERENCES; 4-MONTH-OLD; RESPONSES; SLEEP;

D O I：

10.1080/87565641.2011.650807

中图分类号：

B844 [发展心理学（人类心理学）];

学科分类号：

040202 ;

摘要：

Previous studies of auditory recognition memory in sleeping newborns reported 2 event-related potential (ERP) components, P2 and negative slow wave (NSW), reflecting voice discrimination and detection of novelty, respectively. In the present study, using high-density recording arrays, ERPs were acquired from 26 2-month-old awake infants as they were presented with a familiar and unfamiliar voice (i.e., mother and stranger) with equal probability. In addition to P2 and NSW, we observed a positive slow wave (PSW) over the right temporo-parietal scalp, indicating memory updating. Our study suggests that infants appear to have the capacity to encode novel stimuli as early as 2 months of age.

引用

页码：400 / 414

页数：15

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