Differentiation of speech is predictable from abilities to discriminate the speed at which a sound reaches its optimum amplitude (rise time). This study investigated whether rise time identification of an affricate–fricative continuum would be impacted upon by dyslexia. Children between 10 and 14 years old identified sounds along a continuum of fricative to affricate sounds (cha–sha continuum), using a novel automated learning rise time identification task. Those with higher dyslexia likelihoods (measured by the Dyslexia Screening Test – Secondary), and poor reading scores (measured by the British Abilities Scales), showed a difference in rise time identification; greater distances between rise times were needed for those with a high risk of dyslexia to recognise fricative–affricate differences than for controls. These results were not impacted upon by IQ scores.

中文翻译：

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持续时间和上升时间提示在阅读困难儿童的口语和轻音语音标签中的使用

从区分声音达到其最佳振幅（上升时间）的速度的能力可以预测语音的差异。这项研究调查了诵读障碍的识别是否会影响从属-磨擦性连续体的上升时间。10至14岁的儿童使用新颖的自动学习上升时间识别任务，沿着摩擦音的连续体识别声音（cha-sha连续体）。那些阅读障碍可能性较高（通过阅读障碍筛查测试-中学）和阅读得分较差（通过英国能力量表测量）的人，其上升时间的识别有所不同。对于那些患有诵读困难风险的人来说，识别磨擦性和附属性差异要比对照组需要更大的上升时间距离。