Universität zu Köln

Roettger, Timo B. and Franke, Michael (2019). Evidential Strength of Intonational Cues and Rational Adaptation to (Un-)Reliable Intonation. Cogn. Sci., 43 (7). HOBOKEN: WILEY. ISSN 1551-6709

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Abstract

Intonation plays an integral role in comprehending spoken language. Listeners can rapidly integrate intonational information to predictively map a given pitch accent onto the speaker's likely referential intentions. We use mouse tracking to investigate two questions: (a) how listeners draw predictive inferences based on information from intonation? and (b) how listeners adapt their online interpretation of intonational cues when these are reliable or unreliable? We formulate a novel Bayesian model of rational predictive cue integration and explore predictions derived under a concrete linking hypothesis relating a quantitative notion of evidential strength of a cue to the moment in time, relative to the unfolding speech signal, at which mouse trajectories turn towards the eventually selected option. In order to capture rational belief updates after concrete observations of a speaker's behavior, we formulate and explore an extension of this model that includes the listener's hierarchical beliefs about the speaker's likely production behavior. Our results are compatible with the assumption that listeners rapidly and rationally integrate all available intonational information, that they expect reliable intonational information initially, and that they adapt these initial expectations gradually during exposition to unreliable input. All materials, data, and scripts can be retrieved here:

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Roettger, Timo B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Franke, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-136178
DOI:	10.1111/cogs.12745
Journal or Publication Title:	Cogn. Sci.
Volume:	43
Number:	7
Date:	2019
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1551-6709
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPOKEN-LANGUAGE; PERCEPTUAL ADAPTATION; EYE-MOVEMENTS; PROSODY; COMPREHENSION; INFORMATION; TRACKING; SPEECH; ACCENT; TIME Multiple languages Psychology, Experimental Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13617