犬は2単語のボタンの組み合わせでコミュニケーションをとることが研究で判明(Dogs Use Two-Word Button Combos to Communicate, Study Shows)

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2024-12-09 カリフォルニア大学サンディエゴ校(UCSD)

カリフォルニア大学サンディエゴ校の比較認知学研究所は、犬がサウンドボードのボタンを使い、偶然ではなく意図的に二語の組み合わせを行うことを確認しました。152匹の犬から26万回以上の押下データを分析した結果、「外」+「トイレ」などの組み合わせが、単なる模倣を超えた行動であることが判明しました。研究者は、犬の認知能力や飼い主とのコミュニケーションが深まる可能性があると指摘しています。今後は、過去や未来の出来事を指し示す能力も調査予定です。

<関連情報>

サウンドボードで訓練された犬は、偶然ではなく、ランダムでもなく、非意図的な2つのボタンの組み合わせを作り出す Soundboard-trained dogs produce non-accidental, non-random and non-imitative two-button combinations

Amalia P. M. Bastos,Zachary N. Houghton,Lucas Naranjo & Federico Rossano
Scientific Reports  Published:09 December 2024
DOI:https://doi.org/10.1038/s41598-024-79517-6

figure 2

Abstract

Early studies attempting interspecies communication with great apes trained to use sign language and Augmented Interspecies Communication (AIC) devices were limited by methodological and technological constraints, as well as restrictive sample sizes. Evidence for animals’ intentional production of symbols was met with considerable criticisms which could not be easily deflected with existing data. More recently, thousands of pet dogs have been trained with AIC devices comprising soundboards of buttons that can be pressed to produce prerecorded human words or phrases. However, the nature of pets’ button presses remains an open question: are presses deliberate, and potentially meaningful? Using a large dataset of button presses by family dogs and their owners, we investigate whether dogs’ button presses are (i) non-accidental, (ii) non-random, and (iii) not mere repetitions of their owners’ presses. Our analyses reveal that, at the population level, soundboard use by dogs cannot be explained by random pressing, and that certain two-button concept combinations appear more often than expected by chance at the population level. We also find that dogs’ presses are not perfectly predicted by their owners’, suggesting that dogs’ presses are not merely repetitions of human presses, therefore suggesting that dog soundboard use is deliberate.

生物環境工学
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