Auditory recognition memory in 2-month-old infants as assessed by event-related potentials

Xiaoqin Mai; Lin Xu; Mingyan Li; Jie Shao; Zhengyan Zhao; Raye Ann Deregnier; Charles A. Nelson; Betsy Lozoff

doi:10.1080/87565641.2011.650807

Auditory recognition memory in 2-month-old infants as assessed by event-related potentials

Xiaoqin Mai, Lin Xu, Mingyan Li, Jie Shao, Zhengyan Zhao^*, Raye Ann Deregnier, Charles A. Nelson, Betsy Lozoff

^*Corresponding author for this work

Pediatrics

Research output: Contribution to journal › Article

11 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	400-414
Number of pages	15
Journal	Developmental Neuropsychology
Volume	37
Issue number	5
DOIs	https://doi.org/10.1080/87565641.2011.650807
State	Published - Jul 1 2012

ASJC Scopus subject areas

Neuropsychology and Physiological Psychology
Developmental and Educational Psychology

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Mai, X., Xu, L., Li, M., Shao, J., Zhao, Z., Deregnier, R. A., Nelson, C. A., & Lozoff, B. (2012). Auditory recognition memory in 2-month-old infants as assessed by event-related potentials. Developmental Neuropsychology, 37(5), 400-414. https://doi.org/10.1080/87565641.2011.650807

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abstract = "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.",

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