Feenaughty Lynda, Tjaden Kris, Benedict Ralph H B, Weinstock-Guttman Bianca
Department of Communicative Disorders and Sciences, University at Buffalo, Buffalo, NY 14214, USA.
Clin Linguist Phon. 2013 Feb;27(2):134-51. doi: 10.3109/02699206.2012.751624.
This preliminary study investigated how cognitive-linguistic status in multiple sclerosis (MS) is reflected in two speech tasks (i.e. oral reading, narrative) that differ in cognitive-linguistic demand. Twenty individuals with MS were selected to comprise High and Low performance groups based on clinical tests of executive function and information processing speed and efficiency. Ten healthy controls were included for comparison. Speech samples were audio-recorded and measures of global speech timing were obtained. Results indicated predicted differences in global speech timing (i.e. speech rate and pause characteristics) for speech tasks differing in cognitive-linguistic demand, but the magnitude of these task-related differences was similar for all speaker groups. Findings suggest that assumptions concerning the cognitive-linguistic demands of reading aloud as compared to spontaneous speech may need to be re-considered for individuals with cognitive impairment. Qualitative trends suggest that additional studies investigating the association between cognitive-linguistic and speech motor variables in MS are warranted.
这项初步研究调查了多发性硬化症（MS）患者的认知语言状态如何在两项认知语言需求不同的言语任务（即口头阅读、叙述）中得到体现。根据执行功能以及信息处理速度和效率的临床测试，选取了20名MS患者，分为高表现组和低表现组。纳入了10名健康对照者进行比较。对言语样本进行了录音，并获取了整体言语时间的测量值。结果表明，对于认知语言需求不同的言语任务，整体言语时间（即语速和停顿特征）存在预期差异，但所有说话者组中这些与任务相关的差异程度相似。研究结果表明，对于有认知障碍的个体，可能需要重新考虑关于大声朗读与自发言语的认知语言需求的假设。定性趋势表明，有必要开展更多研究来调查MS患者认知语言与言语运动变量之间的关联。
