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Phonological and sensory short-term memory are correlates and both affected in developmental dyslexia

机译:语音和感觉的短期记忆是相关的,并且都在发育障碍中受到影响

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摘要

We investigated whether poor short-term memory (STM) in developmental dyslexia affects the processing of sensory stimulus sequences in addition to phonological material. STM for brief binary non-verbal stimuli (light flashes, tone bursts, finger touches, and their crossmodal combinations) was studied in 20 Finnish adults with dyslexia and 24 healthy controls. To determine sensory Item STM, participants were asked to match pairs of sequences of increasing length. In Time STM, participants matched pairs of five-stimulus-sequences of increasing stimulus onset asynchrony between the stimuli. Phonological STM was studied with digit span forwards and backwards, pseudoword span, pseudoword matching span, and pseudoword repetition. Earlier results associating phonological STM impairment with dyslexia were replicated. Dyslexic participants also performed more poorly than controls in sensory STM, suggesting that they have general difficulties in representing temporal sequences in STM. Further, sensory STM, phonological STM, temporal acuity, and reading ability were correlated, pointing to shared processes.
机译:我们研究了发育障碍的短期记忆(STM)不良是否会影响除了语音材料以外的感觉刺激序列的处理。在20名患有阅读障碍的芬兰成年人和24名健康对照者中,研究了短暂的二进制非语言刺激(闪烁,音调,手指触摸及其交叉模式组合)的STM。为了确定感觉项目STM,要求参与者匹配长度增加的序列对。在Time STM中,参与者将五对刺激序列配对,以增加刺激之间的刺激发作异步性。语音STM的研究包括前后数字跨度,伪字跨度,伪字匹配跨度和伪字重复。复制了语音STM障碍与阅读障碍相关的早期结果。阅读障碍的参与者在感觉STM中的表现也比对照组差,这表明他们在STM中表示时间序列方面普遍存在困难。此外,感官STM,语音STM,时间敏锐度和阅读能力也相互关联,指向共享的过程。

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  • 来源
    《Reading and Writing》 |2012年第9期|p.2247-2273|共27页
  • 作者单位

    Division of Cognitive and Neuropsychology, Department of Psychology, Institute of Behavioural Sciences, University of Helsinki, P. O. Box 9, Siltavuorenpenger 1 A, 00014, Helsinki, Finland;

    Division of Cognitive and Neuropsychology, Department of Psychology, Institute of Behavioural Sciences, University of Helsinki, P. O. Box 9, Siltavuorenpenger 1 A, 00014, Helsinki, Finland;

    Division of Cognitive and Neuropsychology, Department of Psychology, Institute of Behavioural Sciences, University of Helsinki, P. O. Box 9, Siltavuorenpenger 1 A, 00014, Helsinki, Finland;

    Division of Cognitive and Neuropsychology, Department of Psychology, Institute of Behavioural Sciences, University of Helsinki, P. O. Box 9, Siltavuorenpenger 1 A, 00014, Helsinki, Finland;

    Division of Cognitive and Neuropsychology, Department of Psychology, Institute of Behavioural Sciences, University of Helsinki, P. O. Box 9,;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nonverbal short-term memory; Phonological processing; Reading disability; Reading impairment; Sensory memory; Temporal processing;

    机译:非语言短期记忆;语音处理;阅读障碍;阅读障碍;感觉记忆;时态处理;

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