Several previous studies have used mismatch negativity (MMN) to examine the auditory processing deficit in individuals with dyslexia. However, researchers have not clearly determined whether the deficit is general or specific and how it potentially changes with age. Meta-analysis was adopted to quantitatively identify the auditory processing deficit in individuals with dyslexia. By analysing 81 results within 25 publications that employed passive oddball paradigms to explore auditory processing in individuals with dyslexia, we identified that MMN impairment in auditory processing of speech was observed in children (Cohen’s d = 0.296) and adults with dyslexia (Cohen’s d = 0.486). Besides, adults with dyslexia showed atypical auditory processing of non-speech (Cohen’s d = 0.409), which appeared to be related to the types of stimuli. Based on these findings, for individuals with dyslexia, the auditory processing deficit in speech will persist into adulthood, and the auditory processing deficit is general in adults with dyslexia. Because few studies used appropriate non-speech stimuli to examine the auditory processing in children with dyslexia, future studies should focus more on this area.

先前的一些研究已经使用失配阴性（MMN）来检查阅读障碍患者的听觉加工缺陷。但是，研究人员尚未清楚确定赤字是普遍的还是特定的，以及赤字会随着年龄而变化的可能性。采用荟萃分析定量地识别患有阅读障碍的个体的听觉处理缺陷。通过分析25个出版物中的81个结果，这些出版物采用被动的奇数球范式来探讨阅读障碍者的听觉处理，我们发现在儿童（Cohen d = 0.296）和患有阅读障碍的成年人（Cohen d = 0.486）中，在听觉处理中存在MMN障碍。 ）。此外，患有阅读障碍的成年人表现出非语音的非典型听觉加工（Cohen d = 0.409），这似乎与刺激的类型有关。基于这些发现，对于阅读障碍的人，言语听觉加工缺陷会持续到成年，而阅读障碍的听觉缺陷普遍存在。由于很少有研究使用适当的非语音刺激来检查阅读障碍儿童的听觉加工，因此未来的研究应更多​​地关注这一领域。