The Influence of Ambient Speech on Adult Speech Productions through Unintentional Imitation

Université de Mons, Mons, Wallonia, Belgium
Phonetica (Impact Factor: 0.52). 02/2007; 64(2-3):145-73. DOI: 10.1159/0000107914
Source: PubMed


This paper deals with the influence of ambient speech on individual speech productions. A methodological framework is defined to gather the experimental data necessary to feed computer models simulating self-organisation in phonological systems. Two experiments were carried out. Experiment 1 was run on French native speakers from two regiolects of Belgium: two from Liège and two from Brussels. When exposed to the way of speaking of the other regiolect via loudspeakers, the speakers of one regiolect produced vowels that were significantly different from their typical realisations, and significantly closer to the way of speaking specific of the other regiolect. Experiment 2 achieved a replication of the results for 8 Mons speakers hearing a Liège speaker. A significant part of the imitative effect remained up to 10 min after the end of the exposure to the other regiolect productions. As a whole, the results suggest that: (i) imitation occurs automatically and unintentionally, (ii) the modified realisations leave a memory trace, in which case the mechanism may be better defined as 'mimesis' than as 'imitation'. The potential effects of multiple imitative speech interactions on sound change are discussed in this paper, as well as the implications for a general theory of phonetic implementation and phonetic representation.

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Available from: Véronique Delvaux
    • "Besides the timing of turn-taking, this mechanism may also facilitate convergence of motor aspects of speech production (Scott et al., 2009). In healthy speakers, unintentional convergence of acoustic-phonetic style including dialectal and voice characteristics, prosody and articulation have been found in different tasks (e.g.Bailly, 2002;Delvaux & Soquet, 2007;Giles, 1973;Kappes, Baumgaertner, Peschke, & Ziegler, 2009;Natale, 1975;Schultz et al., 2015;Street, 1984). In recent years, some evidence of rhythmic entrainment has also been found in dyadic interactions of healthy individuals with native as well as non-native and dialectally different speech (Krivokapić, 2013;Rao, Smiljanic, & Diehl, 2013;Schultz et al., 2015). "
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    • "This distinction matters, because there are many instances in which hearing other-produced speech influences perception and production. Properties of the speech sounds in the environment can be assimilated into a speaker's output (Delvaux & Soquet, 2007; Pickering & Garrod, 2004), and speech that a person is trying to ignore can be confused with attended speech, particularly if the utterances are semantically related (Brungart, 2001; Gray & Wedderburn, 1960). Thus, had participants heard any voice (not necessarily their own), they might have made the same misattributions. "

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