Modifications of recognition memory processes in preterm children: an event-related potential study.

Modifications of recognition memory processes in preterm children: an event-related potential study.
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早产儿认知记忆过程的改变:一项事件相关电位研究

DOI:
10.1111/cdev.12323
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发表时间:
2015
期刊:
影响因子:
4.6
通讯作者:
Mecklinger
Mecklinger
中科院分区:
心理学1区
文献类型:
--
作者:
Brunnemann;Shamdeen;Meng-Hentschel;Gortner;Mecklinger

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早产可能导致海马损害。因此,海马依赖性记忆过程(基于回忆的提取)可能比海马独立性过程(基于熟悉性的提取)受损更严重。采用项目识别任务测试了18名早产儿(胎龄< 34周,体重<1,600 g)和15名对照组(8-10岁)的记忆力,早产儿海马体积减小,无新生儿并发症。虽然各组在记忆表现上是平等的,但发现了分离:早产儿组中熟悉的事件相关电位(ERP)相关性是完整的,而回忆的相关性减弱。一项后续实验排除了这是由于一般认知缺陷造成的。此外,孕龄与ERP回忆指数相关。因此,早产儿的再认记忆的特点可能是通过熟悉性来补偿衰减的回忆。
Prematurity may cause hippocampal compromise. Therefore, hippocampus‐dependent memory processes (recollection‐based retrieval) may be more impaired than hippocampus‐independent processes (familiarity‐based retrieval). The memory of 18 children born preterm with reduced hippocampal volumes, without neonatal complications (weeks of gestation < 34, weight < 1,600 g), and 15 controls (8–10 years) was tested using an item recognition task. While groups were equal in memory performance, dissociation was found: The event‐related potential (ERP) correlate of familiarity was intact in the preterm group, whereas the correlate of recollection was attenuated. A follow‐up experiment ruled out that this was due to general cognitive deficits. Furthermore, gestational age correlated with the ERP index of recollection. Thus, recognition memory in preterm children may be characterized by a compensation of attenuated recollection by familiarity.
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