Harvey Denise Y, Traut Hilary J, Middleton Erica L
Moss Rehabilitation Research Institute, Elkins Park, Pennsylvania, USA.
Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Lang Cogn Neurosci. 2019;34(1):69-86. doi: 10.1080/23273798.2018.1501500. Epub 2018 Jul 26.
Naming pictures from the same semantic category hinders subsequent naming from that category (i.e., semantic interference), irrespective of the number of intervening different-category exemplars named. Persistent semantic interference has been well documented in chronometric studies, and has been attributed to experience-driven adjustments in the strength of connections between semantic and lexical representations. However, whether parallel effects exist in speech error data remains unclear. In the current study, people with aphasia, a speaker population prone to naming errors, provided naming responses to a large picture corpus presented in random order that comprised multiple exemplars drawn from several different categories. We found persistent semantic interference in the task in semantic error rates specifically, and that semantic similarity between consecutive related exemplars modulated the effect. The results provide further evidence for the presumed lexical-semantic locus and mechanism(s) underlying semantic interference.
从同一语义类别中命名图片会妨碍后续从该类别中进行命名（即语义干扰），无论其间命名的不同类别示例数量如何。持续性语义干扰在计时研究中已有充分记录，并归因于语义和词汇表征之间连接强度的经验驱动调整。然而，言语错误数据中是否存在平行效应仍不清楚。在当前研究中，失语症患者这一容易出现命名错误的说话人群，对以随机顺序呈现的大量图片语料库提供命名反应，该语料库包含从几个不同类别中抽取的多个示例。我们特别在语义错误率方面发现了该任务中的持续性语义干扰，并且连续相关示例之间的语义相似性调节了这种效应。这些结果为语义干扰背后假定的词汇 - 语义位点和机制提供了进一步证据。
