The present paper aims at providing empirical evidence for dialectal variation concerning the perception of the central vowel [ɐ] in European Portuguese (EP). More concretely, this study compares the perception of the contrast between [a] and [ɐ] by native speakers of two varieties of EP: 23 speakers of a northern Portuguese dialect (from the city of Braga) and 23 speakers of the Littoral Center variety of EP (from the city of Lisbon, defined as Standard European Portuguese (SEP)). Based on a discrimination test, the results show that the two groups of speakers differ with respect to the perception of the contrast between the two central vowels under investigation. The speakers of the northern variety differentiate less between the two central vowels compared to the speakers from Lisbon.

中文翻译：

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欧洲葡萄牙语中央元音感知中的方言变异

本文旨在为欧洲葡萄牙语（EP）中关于中心元音[ɐ]感知的方言变化提供经验证据。更具体而言，本研究比较了两种EP的母语使用者对[a]和[ɐ]的对比度的感知：葡萄牙北部方言的23名发言人（来自布拉加市）和滨海中心的23名发言人EP（来自里斯本市，定义为标准欧洲葡萄牙语（SEP））。根据鉴别测试，结果表明，在所研究的两个中央元音之间的对比度感知上，两组说话者有所不同。与里斯本的说话者相比，北部变种的说话者在两个中央元音之间的区别较小。