Ptok M, Dunkelmann A
Klinik und Poliklinik für Phoniatrie und Pädaudiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland.
HNO. 2012 Mar;60(3):269-74. doi: 10.1007/s00106-011-2470-1.
Phoneme discrimination tests based on presenting minimal pairs (MP) are frequently used to assess auditory processing. However, test results may be influenced by other factors beside correct acoustic representation. Here we studied if working memory capacity (WMC) correlates with reproducing sets of minimal pairs.
Participants were 161 preschool children whereby WMC was evaluated by memory span for digits and MPs were either real words or non-words (logatoms). Both real word MPs and logatom MPs were presented in doublets or triplets. Children were asked to repeat what they had heard. Correlation analysis was performed using Spearman rank correlation.
All four test item blocks showed a significant positive correlation to WMC (group values). Data from individuals indicated that some children with poor WMC performed sufficiently on MP discrimination and vice versa.
Besides confirming the phonological similarity effect our data indicate a significant interdependence between different processes and phonological representations (according to the Logogen model). This must be taken into account when using MP tests for evaluating "auditory processing" in the clinical routine. However, poor WMC is neither necessary nor obligatory for poor phoneme discrimination.
基于呈现最小对立体（MP）的音素辨别测试经常用于评估听觉加工。然而，测试结果可能会受到正确声学表征之外的其他因素影响。在此，我们研究了工作记忆容量（WMC）是否与再现最小对立体集相关。
参与者为161名学龄前儿童，通过数字记忆广度评估WMC，MP为真词或非词（语素）。真词MP和语素MP均以双音节或三音节呈现。要求儿童重复他们所听到的内容。使用斯皮尔曼等级相关进行相关分析。
所有四个测试项目组均显示与WMC（组值）存在显著正相关。个体数据表明，一些WMC较差的儿童在MP辨别上表现良好，反之亦然。
除了证实语音相似性效应外，我们的数据表明不同过程与语音表征之间存在显著的相互依存关系（根据语素生成模型）。在临床常规中使用MP测试评估“听觉加工”时必须考虑到这一点。然而，WMC差对于音素辨别差既非必要条件也非必然结果。
