Relations between Short-term Memory Deficits, Semantic Processing, and Executive Function.
Relations between Short-term Memory Deficits, Semantic Processing, and Executive Function.
复制标题
DOI：
10.1080/02687038.2011.617436
复制
发表时间：
2012-03
期刊：
影响因子：
2
通讯作者：
Martin N
中科院分区：
文献类型：
--
作者：
Allen CM;Martin RC;Martin N
先前的研究建议使用可分离的短期记忆（STM）缓冲区来维护语音和词汇语义信息，因为一些失语症患者表现出比语音信息更好的保留语义的能力，而其他患者则表现出相反的情况。最近，研究人员提出，STM 中语义信息维护的缺陷与执行控制能力有关。本研究调查了此类患者的执行功能能力与语义和语音短期记忆（STM）以及语义处理的关系，因为之前的一些研究表明语义 STM 缺陷和语义处理能力与特定或一般执行功能缺陷密切相关。对 20 名患有失语症和 STM 缺陷的患者进行了短期保留、语义处理以及复杂和简单执行功能任务的测试。在相关分析中，我们发现语义 STM 与简单或复杂执行功能任务的表现之间没有关系。相比之下，语音 STM 与具有语言成分的任务中的执行功能表现相关，这表明某些执行功能任务中的表现取决于维护或排练语音代码。尽管语义STM与执行功能能力无关，但语义处理任务的表现与执行功能相关，这可能是由于语义处理和执行功能任务中执行任务的要求相似。讨论了执行缺陷的治疗意义和解释。
Previous research has suggested separable short-term memory (STM) buffers for the maintenance of phonological and lexical-semantic information, as some patients with aphasia show better ability to retain semantic than phonological information and others show the reverse. Recently, researchers have proposed that deficits to the maintenance of semantic information in STM are related to executive control abilities. The present study investigated the relationship of executive function abilities with semantic and phonological short-term memory (STM) and semantic processing in such patients, as some previous research has suggested that semantic STM deficits and semantic processing abilities are critically related to specific or general executive function deficits. 20 patients with aphasia and STM deficits were tested on measures of short-term retention, semantic processing, and both complex and simple executive function tasks. In correlational analyses, we found no relation between semantic STM and performance on simple or complex executive function tasks. In contrast, phonological STM was related to executive function performance in tasks that had a verbal component, suggesting that performance in some executive function tasks depends on maintaining or rehearsing phonological codes. Although semantic STM was not related to executive function ability, performance on semantic processing tasks was related to executive function, perhaps due to similar executive task requirements in both semantic processing and executive function tasks. Implications for treatment and interpretations of executive deficits are discussed.
登录
查看更多内容
影响因子：
2.5
作者：
Baldo, Juliana V.;Bunge, Silvia A.;Wilson, Stephen M.;Dronkers, Nina F.
通讯作者：
Dronkers, Nina F.
影响因子：
2
作者：
Edmonds, Lisa A.;Nadeau, Stephen E.;Kiran, Swathi
通讯作者：
Kiran, Swathi
DOI：
10.1037/0096-1523.1.4.339
发表时间：
1975-01-01
影响因子：
2.1
作者：
CLARK, HH;BROWNELL, HH
通讯作者：
BROWNELL, HH
影响因子：
2.6
作者：
Barde LH;Schwartz MF;Chrysikou EG;Thompson-Schill SL
通讯作者：
Thompson-Schill SL
影响因子：
4.1
作者：
Baddeley, A;Chincotta, D;Adlam, A
通讯作者：
Adlam, A