CROSS-MODAL REPETITION EFFECTS ON THE N4
CROSS-MODAL REPETITION EFFECTS ON THE N4
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DOI：
10.1111/j.1467-9280.1991.tb00126.x
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发表时间：
1991-05-01
影响因子：
8.2
通讯作者：
HALGREN, E
中科院分区：
文献类型：
--
作者：
DOMALSKI, P;SMITH, ME;HALGREN, E
本研究记录了12名正常右利手受试者的13个中线和侧头皮部位的事件相关脑电位（ERP），记录的任务包括在听觉模式下学习20个单词，然后在听觉模式和视觉模式下进行再认记忆测试。受试者被指示按下重复的单词，这些单词随机与相同数量的新干扰词混合。在听觉条件下，重复的话，ERPs的N4分量的幅度和P3分量的增加被发现的递减，这种差异持续跨模式的视觉条件下，虽然前后分布的N4差异条件之间的变化。重复引起的N4衰减的跨模态转移表明N4变化可以由语义（即，非模态特定的）记忆痕迹，而在听觉和视觉条件之间的分布的差异提供了证据的模态特定的贡献N4发电机。
Event related brain potentials (ERP) were recorded from 12 normal right-handed subjects from 13 midline and lateral scalp sites during a task that involved learning a list of 20 words in the auditory modality, followed by recognition memory testing in first the auditory and then the visual modality. Subjects were instructed to keypress to repeated words, which were randomly mixed with an equal number of novel distractor words. A decrement in the amplitude of the N4 component of ERPs and an increase in the P3 component was found following repeated words in the auditory condition, and this difference persisted across modalities to the visual condition, although the anterior-posterior distribution of the N4 difference changed between conditions. The cross-modal transfer of the repetition-induced N4 attenuation suggests that the N4 change may be modulated by a semantic (i.e., non-modality specific) memory trace, while the difference in its distribution between the auditory and visual conditions provides evidence for a modality-specific contribution to the N4 generator.