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Categorical perception of vocal emotion expressions
Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Psychology.
2005 (English)In: Emotion, ISSN 1528-3542, Vol. 5, 277-295 p.Article in journal (Refereed) Published
Abstract [en]

Continua of vocal emotion expressions, ranging from one expression to another, were created using speech synthesis. Each emotion continuum consisted of expressions differing by equal physical amounts. In two experiments, subjects identified the emotion of each expression and discriminated between pairs of expressions. Identification results show that the continua were perceived as two distinct sections separated by a sudden category boundary. Also, discrimination accuracy was generally higher for pairs of stimuli falling across category boundaries than for pairs belonging to the same category. These results suggest that vocal expressions are perceived categorically. Results are interpreted from an evolutionary perspective on the function of vocal expression

Place, publisher, year, edition, pages
2005. Vol. 5, 277-295 p.
Keyword [en]
vocal expression, emotion, speech, categorical perception, speech synthesis, acoustic cues
URN: urn:nbn:se:uu:diva-67756OAI: oai:DiVA.org:uu-67756DiVA: diva2:95667
Available from: 2005-10-07 Created: 2005-10-07 Last updated: 2011-01-12

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Laukka, Petri
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