Low-Level Prenatal Lead Exposure Alters Auditory Recognition Memory in 2-Month-Old Infants: An Event-Related Potentials (ERPs) Study

被引：11

作者：

Geng, Fengji ^{[1
]}

Mai, Xiaoqin ^{[2
]}

Zhan, Jianying ^{[3
]}

Xu, Lin ^{[3
]}

Shao, Jie ^{[3
]}

Meeker, John ^{[4
]}

Lozoff, Betsy ^{[1
,5
]}

机构：

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

[2] Renmin Univ China, Dept Psychol, Beijing, Peoples R China

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

[4] Univ Michigan, Sch Publ Res, Ann Arbor, MI 48109 USA

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

来源：

DEVELOPMENTAL NEUROPSYCHOLOGY | 2014年 / 39卷 / 07期

关键词：

IRON-DEFICIENCY; NEWBORN-INFANTS; CHILDREN; ATTENTION; EXPERIENCE; PREGNANCY; TERM;

D O I：

10.1080/87565641.2014.959172

中图分类号：

B844 [发展心理学（人类心理学）];

学科分类号：

040202 ;

摘要：

This study used event-related potentials (ERPs) to assess effects of low-level prenatal lead exposure on auditory recognition memory in 2-month-old infants. Infants were divided into four groups according to cord-blood lead concentration: (1) mu g/dL, (2) 2.00-2.99 mu g/dL, (3) 3.0-3.7 mu g/dL, and (4) >= 3.7 mu g/dL. The first group showed the normally expected differences in P2, P750, and late slow wave (LSW) amplitudes elicited by mothers' and strangers' voices. These differences were not observed for one or more ERP components in the other groups. Thus, there was electrophysiological evidence of poorer auditory recognition memory at 2 months with cord-blood lead >= 2.00 mu g/dL.

引用

页码：516 / 528

页数：13

共 14 条

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