語言與手勢在語言處理的各項層面，包括詞彙、句法及語意方面，具有密切的關聯。然而，手勢與音韻學的關係以往並未受到研究者重視。本文探究言語與手勢在音位層面的關係，目的在得知手勢的產生是否影響與它同時產生的母音聲譜。

Language and gesture are closely related on various levels of processing, including lexicon, syntax, and semantics. The relationship of gestures to phonology, however, has received only little attention from researchers in the past. The present paper explores the relationship between speech and gesture on a phonemic level to see whether manual gesture production influences the acoustic spectrum of simultaneously produced vowel sounds.