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Vocal laughter punctuates speech and manual signing: Novel evidence for similar linguistic and neurological mechanisms

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Abstract Vocal laughter fills conversations between speakers with normal hearing and between deaf users of American Sign Language, but laughter rarely intrudes on the phrase structure of spoken or signed… Click to show full abstract

Abstract Vocal laughter fills conversations between speakers with normal hearing and between deaf users of American Sign Language, but laughter rarely intrudes on the phrase structure of spoken or signed conversation, being akin to punctuation in written text. This punctuation effect indicates that language, whether vocal or signed, is dominant over laughter, and that speech and manual signing involve similar mechanisms.

Keywords: manual signing; speech manual; laughter; laughter punctuates; vocal laughter

Journal Title: Behavioral and Brain Sciences
Year Published: 2017

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