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首页> 外文期刊>Auris, nasus, larynx >Gender disparity in subcortical encoding of binaurally presented speech stimuli: An auditory evoked potentials study
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Gender disparity in subcortical encoding of binaurally presented speech stimuli: An auditory evoked potentials study

机译：双耳呈现语音刺激的皮层下编码中的性别差异：听觉诱发电位研究

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Objectives: To investigate the influence of gender on subcortical representation of speech acoustic parameters where simultaneously presented to both ears. Methods: Two-channel speech-evoked auditory brainstem responses were obtained in 25 female and 23 male normal hearing young adults by using binaural presentation of the 40. ms synthetic consonant-vowel. /da/, and the encoding of the fast and slow elements of speech stimuli at subcortical level were compared in the temporal and spectral domains between the sexes using independent sample, two tailed t-test. Results: Highly detectable responses were established in both groups. Analysis in the time domain revealed earlier and larger Fast-onset-responses in females but there was no gender related difference in sustained segment and offset of the response. Interpeak intervals between Frequency Following Response peaks were also invariant to sex. Based on shorter onset responses in females, composite onset measures were also sex dependent. Analysis in the spectral domain showed more robust and better representation of fundamental frequency as well as the first formant and high frequency components of first formant in females than in males. Conclusions: Anatomical, biological and biochemical distinctions between females and males could alter the neural encoding of the acoustic cues of speech stimuli at subcortical level. Females have an advantage in binaural processing of the slow and fast elements of speech. This could be a physiological evidence for better identification of speaker and emotional tone of voice, as well as better perceiving the phonetic information of speech in women.
机译：目的：研究性别对同时呈现给两只耳朵的语音声学参数的皮层下表达的影响。方法：采用40 ms合成辅音元的双耳表现，在25位女性和23位正常听觉的年轻成年人中获得了两通道语音诱发的听觉脑干反应。 / da /，并使用独立样本，两个尾部t检验比较了性别之间在时域和频谱域中皮层下语音刺激的快慢元素的编码。结果：两组均建立了高度可检测的反应。时域分析显示，女性的快速发作反应较早且较大，但持续性片段和反应抵消没有性别相关的差异。频率跟随反应峰值之间的峰间间隔对性别也不变。基于女性较短的发作反应，复合发作措施也取决于性别。在频谱域中的分析表明，与男性相比，女性的基本频率以及第一共振峰和第一共振峰的高频成分更鲁棒和更好地表示。结论：雌雄之间在解剖学，生物学和生化上的区别可以改变皮层下语音刺激的声音提示的神经编码。女性在对慢速和快速语音元素进行双耳处理方面具有优势。这可能是一个生理证据，可以更好地识别说话者和语音的情绪音调，以及更好地感知女性的语音信息。

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