言語研究に子犬を取り入れると新たな洞察が得られる(Incorporating puppies into language research adds new insight)

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2023-10-11 バージニア工科大学(VirginiaTech)

◆言語研究者が母親が幼児、ペット、他の大人に話しかける方法を研究しています。母親は幼児に対してはゆっくりと明瞭に話し、言語を教えるために過度に発音します。この研究は母親の話し方の感情要因を調査していなかった。犬に話しかける際、母親は感情豊かな声を使用し、幼児に話しかける場合と同様の感情表現を行うことが示されました。
◆この「楽しい会話」には、言語発達の将来的な研究や、感情的な話し方ができない母親へのサポートに関する示唆があります。

<関連情報>

乳児と子犬に対する母親の発話において、肯定的価値は多弁に寄与する Positive Valence Contributes to Hyperarticulation in Maternal Speech to Infants and Puppies

Robin Panneton,Alejandrina Cristia,Caroline Taylor and Christine Moon
Journal of Child Language  Published:01 July 2023
DOI:https://doi.org/10.1017/S0305000923000296

言語研究に子犬を取り入れると新たな洞察が得られる(Incorporating puppies into language research adds new insight)

Abstract

Infant-directed speech often has hyperarticulated features, such as point vowels whose formants are further apart than in adult-directed speech. This increased “vowel space” may reflect the caretaker’s effort to speak more clearly to infants, thus benefiting language processing. However, hyperarticulation may also result from more positive valence (e.g., speaking with positive vocal emotion) often found in mothers’ speech to infants. This study was designed to replicate others who have found hyperarticulation in maternal speech to their 6-month-olds, but also to examine their speech to a non-human infant (i.e., a puppy). We rated both kinds of maternal speech for their emotional valence and recorded mothers’ speech to a human adult. We found that mothers produced more positively valenced utterances and some hyperarticulation in both their infant- and puppy-directed speech, compared to their adult-directed speech. This finding promotes looking at maternal speech from a multi-faceted perspective that includes emotional state.

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