...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The European Journal of Neuroscience >Auditory sensory memory disorder in dyslexic adults as indexed by the mismatch negativity.
【24h】

Auditory sensory memory disorder in dyslexic adults as indexed by the mismatch negativity.

机译：阅读障碍成年人的听觉感觉记忆障碍，由失配阴性所指示。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Deficient temporal discrimination and vulnerability to masking effects caused by rapidly succeeding or simultaneous sounds might be one factor underlying the phonological difficulties in dyslexia. We evaluated cortical auditory discrimination in dyslexia by recording the mismatch negativity (MMN) for a simple pitch change, for an order reversal of tone pairs, and for tone-pair order reversals, with a third tone either preceding or following the tone pairs. It was found that when an additional tone followed the pairs the MMN amplitude was attenuated, suggesting elevated backward-masking effects in the auditory cortex of dyslexic individuals. In addition, the MMN elicited by pitch change was diminished over the left hemisphere of the dyslexic individuals suggesting left hemisphere auditory dysfunction. These results suggest impaired cortical discrimination of sounds and lowered tolerance for the masking effects of rapidly following sounds in dyslexia.
机译：快速的连续或同时发声引起的时间辨别力不足和掩盖效果的脆弱性可能是诵读困难的语音困难的潜在因素之一。我们通过记录简单音高变化，音对顺序颠倒和音对顺序颠倒的错配负值（MMN）来评估阅读障碍的皮质听觉歧视，并在音对之前或之后记录第三音。发现当另外的音调跟随该对时，MMN幅度被衰减，表明阅读困难的个体的听觉皮层中的后向掩蔽效应升高。另外，由音高变化引起的MMN在阅读障碍者的左半球上减少，表明左半球听觉功能障碍。这些结果表明，声音的皮质辨别力受损，并且对诵读困难的快速跟随声音的掩盖效果的耐受性降低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号