The impact of change in stimulus format on the electrophysiological indices of recognition
The impact of change in stimulus format on the electrophysiological indices of recognition
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DOI：
10.1016/j.neuropsychologia.2003.08.010
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发表时间：
2004-01-01
期刊：
影响因子：
2.6
通讯作者：
Rugg, MD
中科院分区：
文献类型：
--
作者：
Schloerscheidt, AM;Rugg, MD
本研究探讨了学习和测验之间刺激形式的变化对再认相关事件相关电位（ERP）的影响。为了达到这个目的，受试者研究了常见物体的名称和图片。在检索时，向受试者呈现的是呈现格式发生变化的旧项目（从图片到名称，反之亦然）、以与研究时相同的格式显示的旧项目和新项目。ERPs揭示了三个时间，空间和功能分离的记忆相关的影响：早期的双边额叶效应，这是敏感的学习和测试刺激之间的感知相似性;左颞顶叶效应，这是敏感的类型的刺激编码;和后期的额叶效应，这是最大的右电极网站，似乎是敏感的测试刺激的类型。结果为早期双侧额叶和后期颞顶叶旧/新效应之间的功能分离提供了进一步的证据，这表明分别从有助于感知驱动的熟悉性或新奇评估和回忆的过程方面进行了解释。(C)2003 Elsevier Ltd.保留所有权利。
The present study investigated the impact of changes in stimulus format between study and test on the event-related potential (ERP) correlates of recognition. To this end subjects studied the names and pictures of common objects. At retrieval, subjects were presented with old items for which the presentational format had changed (from picture to name or vice versa), old items that were shown in the same format as at study, and new items. ERPs revealed three temporally, spatially and functionally dissociable memory-related effects: an early bilateral frontal effect, which was sensitive to the perceptual similarity between study and test stimulus; a left temporo-parietal effect, which was sensitive to the type of stimulus that was encoded; and a late frontal effect, which was largest over right electrode sites and appeared to be sensitive to the type of test stimulus. The results provide further evidence for a functional dissociation between the early bilateral frontal and the later temporo-parietal old/new effect, suggesting an interpretation in terms of processes contributing to a perceptually-driven familiarity or novelty assessment and recollection, respectively. (C) 2003 Elsevier Ltd. All rights reserved.