It's about time: revisiting temporal processing deficits in dyslexia
It's about time: revisiting temporal processing deficits in dyslexia
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DOI：
10.1111/desc.12530
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发表时间：
2018-03-01
影响因子：
3.7
通讯作者：
Ziegler, Johannes C.
中科院分区：
文献类型：
--
作者：
Casini, Laurence;Pech-Georgel, Catherine;Ziegler, Johannes C.
对法语阅读障碍儿童的时间加工进行了三个任务的评估：一个需要内隐时间加工的单词识别任务，以及两个外显的时间一分为二任务，一个是听觉的，一个是视觉的。年龄和阅读水平相匹配的正常发育儿童作为对照组。阅读困难症儿童在时间任务上表现出强烈的缺陷，无论这些任务是外显的还是内隐的，也无论它们涉及听觉还是视觉通道。首先，他们在执行时间任务时表现出更大的知觉变异性，而在非时间维度(强度)上执行相同任务时，他们没有表现出这样的困难。这种分离表明，他们的困难是特定于时间加工的，不能归因于注意力疏忽、警觉性降低、错误的锚定或整体噪音加工。在时间知觉的认知模型框架下，这些数据表明阅读障碍儿童的内部时钟功能紊乱。这些结果与最近关于阅读障碍的时间抽样理论大体一致。
Temporal processing in French children with dyslexia was evaluated in three tasks: a word identification task requiring implicit temporal processing, and two explicit temporal bisection tasks, one in the auditory and one in the visual modality. Normally developing children matched on chronological age and reading level served as a control group. Children with dyslexia exhibited robust deficits in temporal tasks whether they were explicit or implicit and whether they involved the auditory or the visual modality. First, they presented larger perceptual variability when performing temporal tasks, whereas they showed no such difficulties when performing the same task on a non-temporal dimension (intensity). This dissociation suggests that their difficulties were specific to temporal processing and could not be attributed to lapses of attention, reduced alertness, faulty anchoring, or overall noisy processing. In the framework of cognitive models of time perception, these data point to a dysfunction of the internal clock' of dyslexic children. These results are broadly compatible with the recent temporal sampling theory of dyslexia.