Crows cross-modally recognize group members but not non-group members

Noriko Kondo, Ei Ichi Izawa, Shigeru Watanabe

研究成果: Article査読

70 被引用数 (Scopus)


Recognizing other individuals by integrating different sensory modalities is a crucial ability of social animals, including humans. Although cross-modal individual recognition has been demonstrated in mammals, the extent of its use by birds remains unknown. Herein, we report the first evidence of cross-modal recognition of group members by a highly social bird, the large-billed crow (Corvus macrorhynchos). A cross-modal expectancy violation paradigm was used to test whether crows were sensitive to identity congruence between visual presentation of a group member and the subsequent playback of a contact call. Crows looked more rapidly and for a longer duration when the visual and auditory stimuli were incongruent than when congruent. Moreover, these responses were not observed with non-group member stimuli. These results indicate that crows spontaneously associate visual and auditory information of group members but not of non-group members, which is a demonstration of cross-modal audiovisual recognition of group members in birds.

ジャーナルProceedings of the Royal Society B: Biological Sciences
出版ステータスPublished - 2012 5月 22

ASJC Scopus subject areas

  • 生化学、遺伝学、分子生物学一般
  • 免疫学および微生物学一般
  • 環境科学一般
  • 農業および生物科学一般


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