Sounds, words, sentences: Age-related changes across levels of language processing
Sounds, words, sentences: Age-related changes across levels of language processing
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DOI：
10.1037/0882-7974.18.4.858
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发表时间：
2003-12-01
影响因子：
3.7
通讯作者：
Kutas, M
中科院分区：
文献类型：
--
作者：
Federmeier, KD;Van Petten, C;Kutas, M
研究人员使用事件相关电位（ERP）记录年轻和老年参与者听自然语音进行理解，检查并比较了感觉，词汇和句子处理中与听觉相关的变化。词汇关联和无关联的词对嵌入有意义的或句法上法律的但无意义的句子中。早期，一般感觉，和注意力相关的反应（N1，P2）延迟约25英寸的老年参与者，但后来的组件索引语义处理（N400）没有延迟。两组在词汇联想效应的大小、时间或分布上没有差异。相比之下，在老年人组中，信息水平的上下文效应延迟了200 ms以上。研究结果支持了主要在高阶语言过程中与记忆相关的变化的模型。
Age-related changes in sensory, lexical, and sentence processing were examined and compared using event-related potentials (ERPs) recorded as young and elderly participants listened to natural speech for comprehension. Lexically associated and unassociated word pairs were embedded in meaningful or syntactically legal but meaningless sentences. Early, general sensory, and attention-related responses (N1, P2) were delayed by about 25 Ins for older participants, but later components indexing semantic processing (N400) were not delayed. There were no differences in the size, timing, or distribution of lexical associative effects for the two groups. In contrast, message-level context effects were delayed by more than 200 ms in the elderly group. The results support models that posit age-related changes primarily in higher order language processes.