Lexical-semantic retention and speech production: Further evidence from normal and brain-damaged participants for a phrasal scope of planning
Lexical-semantic retention and speech production: Further evidence from normal and brain-damaged participants for a phrasal scope of planning
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DOI：
10.1080/02643290342000302
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发表时间：
2004-09-01
影响因子：
3.4
通讯作者：
Vu, H
中科院分区：
文献类型：
--
作者：
Martin, RC;Miller, M;Vu, H
本研究通过观察描述运动画面的句子的开始潜伏期来研究言语产生中的计划范围。实验句子以简单或复杂的名词短语开头，但长度和实义词是匹配的。来自年轻和年老的正常参与者的结果重复了Smith和Wheeldon（1999）之前的发现，即以复杂名词短语开头的句子的开始潜伏期更长，支持短语范围的规划。我们对两名失语症患者进行了测试，在之前的研究中，他们在语义保留（患者ML）或语音保留（患者EA）方面表现出短期记忆缺陷。患者ML在以复杂名词短语开头的句子中表现出明显更大的劣势，而在正常范围内表现出影响。本研究结果与以往的研究结果表明，短语规划发生在词汇-语义层面，使用的能力也涉及理解。
The present study investigated the scope of planning in speech production by examining onset latencies for sentences describing moving picture displays. The experimental sentences began with either a simple or complex noun phrase, but were matched in length and content words. Results from young and old normal participants replicated previous findings of Smith and Wheeldon (1999) in showing longer onset latencies for sentences beginning with a complex noun phrase, supporting a phrasal scope of planning. Two aphasic patients were tested who, in previous studies, had shown a short-term memory deficit either in semantic retention (patient ML)or in phonological retention (patient EA). Patient ML showed a markedly greater disadvantage for the sentences beginning with a complex noun phrase whereas EAshowed an effect within normal range. The present results from the patients, together with those from previous studies, indicate that the phrasal planning is occurring at a lexical-semantic level using a capacity that is also involved in comprehension.