Influences of postconceptional age and postnatal experience on the development of auditory recognition memory in the newborn infant
Influences of postconceptional age and postnatal experience on the development of auditory recognition memory in the newborn infant
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DOI：
10.1002/dev.10070
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发表时间：
2002-11-01
影响因子：
2.2
通讯作者：
Nelson, CA
中科院分区：
文献类型：
--
作者：
deRegnier, RA;Wewerka, S;Nelson, CA
我们评估了孕后年龄和出生后经历对新生儿听觉识别记忆发展的影响。测试了三组：早产新生儿组（在孕后35-38周，小于或等于1周龄时测试）、足月新生儿组（在孕后39-42周，小于或等于1周龄时测试）和足月有经验组（在孕后39 -42周，> 1周龄时测试;范围8-30天）。当婴儿听到母亲的声音和陌生人的声音交替时，收集事件相关电位。孕后年龄与母亲声音识别记忆的发展相关，而产后经验对潜伏期测量有定性影响。听觉皮层反应的成熟度与再认记忆能力无关。我们的结论是，成熟的识别记忆通路主要是一个功能的产后年龄与产后经验的质量影响。听觉识别记忆通路的成熟并不取决于初级听觉皮层的“P2”峰的成熟。(C)2002 Wiley Periodicals，Inc.
We evaluated the effects of postconceptional age and postnatal experience on the development of neonatal auditory recognition memory. Three groups were tested: a premature newborn group (tested at 35-38 weeks postconceptional age, less than or equal to 1 week old), a full-term newborn group (tested at 39-42 weeks postconceptional age, less than or equal to 1 week old), and a full-term experienced group (tested at 39-42 weeks postconceptional age, > 1 week old; range 8-30 days). Event-related potentials were collected while infants listened to the maternal voice alternating with a stranger's voice. Postconceptional age was correlated with the development of recognition memory for the maternal voice while there were qualitative effects of postnatal experience on latency measurements. Maturity of auditory cortical responses was not correlated with recognition memory abilities. We conclude that maturation of the recognition memory pathways is primarily a function of postconceptional age with qualitative effects of postnatal experience. Maturation of the auditory recognition memory pathway is not contingent upon maturation of the "P2" peak thought to arise from primary auditory cortex. (C) 2002 Wiley Periodicals, Inc.