Tompkins C A
Department of Communication, University of Pittsburgh.
J Speech Hear Res. 1990 Jun;33(2):307-16. doi: 10.1044/jshr.3302.307.
This study was designed to assess how unilateral right hemisphere brain damage (RHD) affects the knowledge and processing of metaphoric aspects of word meaning. Ambiguous adjectives that could convey either a metaphoric or a literal meaning were used as target words in auditory lexical decision tasks. Targets were preceded by primes that were valid (related to the target's metaphoric or literal meaning), neutral, or unrelated. Prime-target pairs were presented in two attention conditions, designed to favor either relatively automatic or relatively effortful mental processing, and reaction time data were gathered. RHD stroke patients performed similarly to left-brain-damaged and normal control subjects in the automatic condition, and when provided with specific processing strategies, indicating that they retained some knowledge of metaphoric word meanings. When left to glean strategies for themselves, however, both brain-damaged groups had difficulty. These results and others from the RHD literature are discussed in terms of attentional resource capacity and attentional allocation models.
本研究旨在评估单侧右半球脑损伤（RHD）如何影响对词义隐喻方面的理解和处理。在听觉词汇判断任务中，将能够传达隐喻或字面意义的歧义形容词用作目标词。目标词之前会呈现启动词，启动词分为有效（与目标词的隐喻或字面意义相关）、中性或无关三种。启动词 - 目标词对在两种注意力条件下呈现，旨在分别促进相对自动或相对费力的心理加工，并收集反应时间数据。RHD中风患者在自动条件下的表现与左脑损伤患者和正常对照组相似，并且在提供特定加工策略时也是如此，这表明他们保留了一些隐喻词义的知识。然而，当让两组脑损伤患者自己去寻找策略时，他们都遇到了困难。本文根据注意力资源容量和注意力分配模型对这些结果以及RHD文献中的其他结果进行了讨论。
