Effect of interaction type on the characteristics of pet-directed speech in female dog owners
Recent studies focusing on the interspecific communicative interactions between humans and dogs show that owners use a special speech register when addressing their dog. This register, called pet-directed speech (PDS), has prosodic and syntactic features similar to that of infant-directed speech (IDS). While IDS prosody is known to vary according to the context of the communication with babies, we still know little about the way owners adjust acoustic and verbal PDS features according to the type of interaction with their dog. The aim of the study was therefore to explore whether the characteristics of women’s speech depend on the nature of interaction with their dog. We recorded 34 adult women interacting with their dog in four conditions: before a brief separation, after reuniting, during play and while giving commands. Our results show that before separation women used a low pitch, few modulations, high intensity variations and very few affective sentences. In contrast, the reunion interactions were characterized by a very high pitch, few imperatives and a high frequency of affectionate nicknames. During play, women used mainly questions and attention-getting devices. Finally when commanding, women mainly used imperatives as well as attention-getting devices. Thus, like mothers using IDS, female owners adapt the verbal as well as the non-verbal characteristics of their PDS to the nature of the interaction with their dog, suggesting that the intended function of these vocal utterances remains to provide dogs with information about their intentions and emotions.
KeywordsPet-directed speech Human–dog relationship Vocalizations Interaction context
The authors are indebted to David Reby for his invaluable contribution to this article. We would like to thank Dr. S. Perrot (IRCA-ENVA) for providing access to the IRCA room and its facilities at the ENVA. Thanks to Marine Parker, Raphaëlle Bourrec, Raphaëlle Tigeot and Justine Guillaumont for their participation in these experiments, as well as for the pilot experiment. Thanks to Mathieu Amy for help in statistical analyses. Thanks to the CHUVA (ENVA) for help with the recruitment of owners. Thanks to owners who accepted to take part to this study.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. All applicable international, national and/or institutional guidelines for the care and use of animals were followed and “all procedures performed in studies involving animals were in accordance with the ethical standards of the institution at which the study was conducted”. The study received the approval of the ethical committee of ENVA (COMERC), no. 2015-03-11.
- Ainsworth MDS, Wittig BA (1969) Attachment and exploratory behavior of one-year-olds in a strange situation. In: Foss BM (ed) Determinants of infant behavior, vol 4. Methuen, London, pp 111–136Google Scholar
- Askew HR (1996) Treatment of behavior problems in dogs and cats: a guide for the small animal veterinarian. Wiley, LondonGoogle Scholar
- Bolinger DL (1964) Around the age of language: Intonation. In: Bolinger D (ed) Intonation. Penguin Books, Harmondsworth, pp 19–29Google Scholar
- Bowlby J (1969) Attachement et perte, vol 1: L’attachement. PUF, ParisGoogle Scholar
- Burnham D et al (1998) Are you my little pussy-cat? Acoustic, phonetic and affective qualities of infant-and pet-directed speech. In: Fifth international conference on spoken language processing (ICSLP)Google Scholar
- Del Monte Foods, Business Wire (2011) New study reveals that the American family has gone to the dogs. The Milo’s Kitchen™Pet Parent Survey, conducted by Kelton Research. http://www.businesswire.com/news/home/20110502006312/en/Study-Reveals-American-Family-Dogs. Accessed 2 May 2011
- Dunst C, Gorman E, Hamby D (2012) Preference for infant-directed speech in preverbal young children. Cent Early Lit Learn Rev 5:1–13Google Scholar
- Fernald A (1992) Meaningful melodies in mothers’ speech to infants. In: Papoušek H, Papoušek M (eds) Nonverbal vocal communication: comparative and developmental approaches. Cambridge University Press, Cambridge, pp 262–282Google Scholar
- Fogle B (1992) The dog’s mind: understanding your dog’s behavior. Wiley, New YorkGoogle Scholar
- Harrington J, Palethorpe S, Watson CI (2007) Age-related changes in fundamental frequency and formants: a longitudinal study of four speakers. In: Interspeech 2007: 8th annual conference of the international speech communication association, vol 2, pp 1081–1084Google Scholar
- Kim H, Diehl MM, Panneton R, Moon C (2006) Hyperarticulation in mothers’ speech to babies and puppies. Paper presented at the annual meeting of the XVth biennial international conference on infant studies, Westin Miyako, Kyoto, Japan. http://citation.allacademic.com/meta/p94616_index.html
- Maxwell SE, Delaney HD (2004) Designing experiments and analyzing data: a model comparison perspective, 2nd edn. Psychology Press, New YorkGoogle Scholar
- Newport E, Gleitman H, Gleitman L (1977) Mother, I’d rather do it myself: some effects and non-effects of maternal speech style. In: Snow CE, Ferguson CA (eds) Talking to children. Cambridge University Press, Cambridge, pp 109–149Google Scholar
- Pongrácz P, Miklósi A, Csányi V (2001) Owner’s beliefs on the ability of their pet dogs to understand human verbal communication: a case of social understanding. Curr Psychol Cogn 20:87–107Google Scholar
- Siegel S, Castellan NJ (1988) Book review: nonparametric statistics for the behavioral Sciences, 2nd edn. McGraw-Hill, New YorkGoogle Scholar
- Sokal RR, Rohlf FJ (1995) Biometry: the principals and practice of statistics in biological research, 3rd edn. WH Freman and Company, New YorkGoogle Scholar
- Syrdal A, Kim YJ (2008) Dialog speech acts and prosody: considerations for TTS. In: Proceedings of speech prosody. Campinas, Brazil, pp 661–665Google Scholar
- Taylor P (2006) Gauging family intimacy: Pew Research Centers Social Demographic Trends Project RSS. Pew Research Center http://www.pewsocialtrends.org/2006/03/07/gauging-family-intimacy/
- Topál J, Kis A, Oláh K (2014) Dogs’ sensitivity to human ostensive cues: a unique adaptation. In: The social dog. Elsevier, London, pp 319–346 Google Scholar