A disorder of executive function and its role in language processing.

A disorder of executive function and its role in language processing.
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执行功能障碍及其在语言处理中的作用。

DOI:
10.1055/s-0028-1082884
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发表时间:
2008
影响因子:
1
通讯作者:
Allen,CorinneM
Allen,CorinneM
中科院分区:
医学4区
文献类型:
--
作者:
Martin,RandiC;Allen,CorinneM

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R. Martin 及其同事提出了单独的存储来维护短期记忆中的语音和语义信息。来自失语症患者的证据表明,这些可分离缓冲区的损坏会对语言理解和产生产生特定的影响,这表明语言和记忆系统之间存在相互依赖性。本文讨论了最近对短期记忆能力有限的失语症患者的研究,并回顾了表明 STM 中保留语义信息的缺陷可能是由特定于言语表征的抑制执行控制过程障碍引起的证据。相反,语音 STM 缺陷可能是由于衰减过快造成的。在语义 STM 缺陷中,假设抑制缺陷难以抑制不相关的言语表征,这可能导致过度干扰。反过来,与语义 STM 缺陷相关的过度干扰会对单个单词和句子的处理产生影响,这可能是这些患者表现出的 STM 能力下降的根源。
R. Martin and colleagues have proposed separate stores for the maintenance of phonological and semantic information in short-term memory. Evidence from patients with aphasia has shown that damage to these separable buffers has specific consequences for language comprehension and production, suggesting an interdependence between language and memory systems. This article discusses recent research on aphasic patients with limited-capacity short-term memories (STMs) and reviews evidence suggesting that deficits in retaining semantic information in STM may be caused by a disorder in the executive control process of inhibition, specific to verbal representations. In contrast, a phonological STM deficit may be due to overly rapid decay. In semantic STM deficits, it is hypothesized that the inhibitory deficit produces difficulty inhibiting irrelevant verbal representations, which may lead to excessive interference. In turn, the excessive interference associated with semantic STM deficits has implications for single-word and sentence processing, and it may be the source of the reduced STM capacity shown by these patients.
语音短期存储、语音处理和句子理解:神经心理学案例研究
DOI: --
发表时间: 1984
期刊:
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