Pragmatic comprehension deficit in Parkinson's disease.
Pragmatic comprehension deficit in Parkinson's disease.
复制标题
帕金森病的语用理解缺陷。
DOI：
10.1080/13803390903130729
复制
发表时间：
2010
影响因子：
2.2
通讯作者：
McNamara,Patrick
中科院分区：
文献类型：
--
作者：
Holtgraves,Thomas;McNamara,Patrick
识别说话人在话语中所实施的具体言语行为是语用能力的一个基本特征。然而，人们对言语行为理解的神经认知介导知之甚少。本研究探讨了帕金森病（PD）患者对特定言语行为的理解程度。在第一个实验中，受试者阅读对话语句，然后执行词汇判断任务（判断目标字母串是否是单词）。与过去的研究一致，当目标字符串是与前面的话语相关联的言语行为时，未受损的参与者更快地完成了这项任务。相比之下，PD患者没有表现出这种效果，这表明PD患者的言语行为激活减慢或不是理解的自动组成部分。在第二项研究中，参与者被给予无限的时间来表明他们对言语行为的识别。PD参与者在这项任务中比对照参与者显着较差。我们的结论是，以前没有记录的语言障碍存在于PD，这种疾病涉及言语行为理解的选择性缺陷。额纹状体系统（PD中受损的系统）可能有助于正常的言语行为理解。
Recognizing the specific speech act that a speaker performs with an utterance is a fundamental feature of pragmatic competence. However, little is known about neurocognitive mediation of speech act comprehension. The present research examined the extent to which people with Parkinson's disease (PD) comprehend specific speech acts. In the first experiment, participants read conversational utterances and then performed a lexical decision task (decide whether a target string of letters was a word). Consistent with past research, nonimpaired participants performed this task more quickly when the target string was the speech act associated with the preceding utterance. In contrast, people with PD did not demonstrate this effect, suggesting that speech act activation is slowed or is not an automatic component of comprehension for people with PD. In a second study, participants were given unlimited time to indicate their recognition of the speech act performed with an utterance. PD participants were significantly poorer at this task than were control participants. We conclude that a previously undocumented language disorder exists in PD and that this disorder involves a selective deficit in speech act comprehension. Frontostriatal systems (the systems impaired in PD) likely contribute to normal speech act comprehension.