Youse K M, Coelho C A
Department of Communication Sciences, University of Connecticut, Storrs, CT 06269-1085, USA.
Brain Inj. 2005 Nov;19(12):1001-9. doi: 10.1080/02699050500109951.
This study investigated the relationship between working memory (WM) and narrative discourse production in individuals with closed head injury (CHI). It was hypothesized that those individuals with higher performance on tests of WM would demonstrate better performance on measures of discourse production.
Correlation coefficients were calculated among five discourse measures from two story narratives and scores from three sub-tests of the Wechsler Memory Scale (WMS).
Fifty-five individuals with moderate-to-severe CHI were studied. Participants included 16 females and 39 males ranging in age from 16-69. Narrative discourse samples were elicited from all participants under two conditions: story retelling and story generation.
The results revealed a number of modest, significant correlations (r=0.29-0.39, p<0.05) between sub-tests of the WMS and measures of discourse production.
Results supported the hypothesis. Story elicitation task differences, limitations of using simple memory span tests as indices of WM and clinical implications of the relationship between WM and discourse production are discussed.
本研究调查了闭合性颅脑损伤（CHI）患者的工作记忆（WM）与叙事话语生成之间的关系。研究假设是，在WM测试中表现较好的个体在话语生成测量中会表现得更好。
计算了来自两个故事叙述的五项话语测量指标与韦氏记忆量表（WMS）三个子测试得分之间的相关系数。
对55名中重度CHI患者进行了研究。参与者包括16名女性和39名男性，年龄在16至69岁之间。在两种条件下从所有参与者中获取叙事话语样本：故事复述和故事生成。
结果显示，WMS子测试与话语生成测量指标之间存在一些适度的显著相关性（r = 0.29 - 0.39，p < 0.05）。
结果支持了该假设。讨论了故事引出任务差异、使用简单记忆广度测试作为WM指标的局限性以及WM与话语生成之间关系的临床意义。
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