Lipread-induced phonetic recalibration in dyslexia
Lipread-induced phonetic recalibration in dyslexia
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DOI：
10.1016/j.actpsy.2012.03.003
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发表时间：
2012-05-01
影响因子：
1.8
通讯作者：
Vroomen, Jean
中科院分区：
文献类型：
--
作者：
Baart, Martijn;de Boer-Schellekens, Liselotte;Vroomen, Jean
与阅读流利的读者相比，发展性阅读障碍读者的听觉音素类别定义不那么明确。在这里，我们研究了语音边界重新校准不当是否可能与这种缺陷有关。对22名阅读困难的成人读者和22名阅读流利的读者在音素识别任务和通过唇语进行语音再校准的任务上进行了比较(Bertelson，Vroomen，&De Geld，2003)。与之前的报告一致，我们发现阅读障碍者在语音标签上不那么明确。然而，他们的语音再校准效应的大小与正常读者相当。这一结果表明，阅读困难者的语音再校准没有受到影响，这不太可能是他们的听觉音素分类障碍的基础。然而，对于正常的读者来说，一个校准良好的系统似乎与听觉精度有关，因为听觉识别曲线的陡度与重新校准呈正相关。(C)2012爱思唯尔B.V.保留所有权利。
Auditory phoneme categories are less well-defined in developmental dyslexic readers than in fluent readers. Here, we examined whether poor recalibration of phonetic boundaries might be associated with this deficit. 22 adult dyslexic readers were compared with 22 fluent readers on a phoneme identification task and a task that measured phonetic recalibration by lipread speech (Bertelson, Vroomen, & De Gelder, 2003). In line with previous reports, we found that dyslexics were less categorical in the labeling of the speech sounds. The size of their phonetic recalibration effect, though, was comparable to that of normal readers. This result indicates that phonetic recalibration is unaffected in dyslexic readers, and that it is unlikely to lie at the foundation of their auditory phoneme categorization impairments. For normal readers however, it appeared that a well-calibrated system is related to auditory precision as the steepness of the auditory identification curve positively correlated with recalibration. (C) 2012 Elsevier B.V. All rights reserved.