Crayfish recognize the faces of fight opponents.

The capacity to associate stimuli underlies many cognitive abilities, including recognition, in humans and other animals. Vertebrates process different categories of information separately and then reassemble the distilled information for unique identification, storage and recall. Invertebrates have...

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Autores principales:	Joanne Van der Velden, Ying Zheng, Blair W Patullo, David L Macmillan
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2008
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dc975d47f0244608bdf10579a8352563
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id	oai:doaj.org-article:dc975d47f0244608bdf10579a8352563
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spelling	oai:doaj.org-article:dc975d47f0244608bdf10579a83525632021-11-25T06:13:13ZCrayfish recognize the faces of fight opponents.1932-620310.1371/journal.pone.0001695https://doaj.org/article/dc975d47f0244608bdf10579a83525632008-02-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18305823/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The capacity to associate stimuli underlies many cognitive abilities, including recognition, in humans and other animals. Vertebrates process different categories of information separately and then reassemble the distilled information for unique identification, storage and recall. Invertebrates have fewer neural networks and fewer neural processing options so study of their behavior may reveal underlying mechanisms still not fully understood for any animal. Some invertebrates form complex social colonies and are capable of visual memory-bees and wasps, for example. This ability would not be predicted in species that interact in random pairs without strong social cohesion; for example, crayfish. They have chemical memory but the extent to which they remember visual features is unknown. Here we demonstrate that the crayfish Cherax destructor is capable of visual recognition of individuals. The simplicity of their interactions allowed us to examine the behavior and some characteristics of the visual features involved. We showed that facial features are learned during face-to-face fights, that highly variable cues are used, that the type of variability is important, and that the learning is context-dependent. We also tested whether it is possible to engineer false identifications and for animals to distinguish between twin opponents.Joanne Van der VeldenYing ZhengBlair W PatulloDavid L MacmillanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 3, Iss 2, p e1695 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Joanne Van der Velden Ying Zheng Blair W Patullo David L Macmillan Crayfish recognize the faces of fight opponents.
description	The capacity to associate stimuli underlies many cognitive abilities, including recognition, in humans and other animals. Vertebrates process different categories of information separately and then reassemble the distilled information for unique identification, storage and recall. Invertebrates have fewer neural networks and fewer neural processing options so study of their behavior may reveal underlying mechanisms still not fully understood for any animal. Some invertebrates form complex social colonies and are capable of visual memory-bees and wasps, for example. This ability would not be predicted in species that interact in random pairs without strong social cohesion; for example, crayfish. They have chemical memory but the extent to which they remember visual features is unknown. Here we demonstrate that the crayfish Cherax destructor is capable of visual recognition of individuals. The simplicity of their interactions allowed us to examine the behavior and some characteristics of the visual features involved. We showed that facial features are learned during face-to-face fights, that highly variable cues are used, that the type of variability is important, and that the learning is context-dependent. We also tested whether it is possible to engineer false identifications and for animals to distinguish between twin opponents.
format	article
author	Joanne Van der Velden Ying Zheng Blair W Patullo David L Macmillan
author_facet	Joanne Van der Velden Ying Zheng Blair W Patullo David L Macmillan
author_sort	Joanne Van der Velden
title	Crayfish recognize the faces of fight opponents.
title_short	Crayfish recognize the faces of fight opponents.
title_full	Crayfish recognize the faces of fight opponents.
title_fullStr	Crayfish recognize the faces of fight opponents.
title_full_unstemmed	Crayfish recognize the faces of fight opponents.
title_sort	crayfish recognize the faces of fight opponents.
publisher	Public Library of Science (PLoS)
publishDate	2008
url	https://doaj.org/article/dc975d47f0244608bdf10579a8352563
work_keys_str_mv	AT joannevandervelden crayfishrecognizethefacesoffightopponents AT yingzheng crayfishrecognizethefacesoffightopponents AT blairwpatullo crayfishrecognizethefacesoffightopponents AT davidlmacmillan crayfishrecognizethefacesoffightopponents
_version_	1718414074424852480

Crayfish recognize the faces of fight opponents.

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