Evidence for Two Numerical Systems That Are Similar in Humans and Guppies
Identifieur interne : 000161 ( Main/Exploration ); précédent : 000160; suivant : 000162Evidence for Two Numerical Systems That Are Similar in Humans and Guppies
Auteurs : Christian Agrillo [Italie] ; Laura Piffer [Italie] ; Angelo Bisazza [Italie] ; Brian Butterworth [Royaume-Uni]Source :
- PLoS ONE [ 1932-6203 ] ; 2012.
Abstract
Humans and non-human animals share an approximate non-verbal system for representing and comparing numerosities that has no upper limit and for which accuracy is dependent on the numerical ratio. Current evidence indicates that the mechanism for keeping track of individual objects can also be used for numerical purposes; if so, its accuracy will be independent of numerical ratio, but its capacity is limited to the number of items that can be tracked, about four. There is, however, growing controversy as to whether two separate number systems are present in other vertebrate species.
In this study, we compared the ability of undergraduate students and guppies to discriminate the same numerical ratios, both within and beyond the small number range. In both students and fish the performance was ratio-independent for the numbers 1–4, while it steadily increased with numerical distance when larger numbers were presented.
Our results suggest that two distinct systems underlie quantity discrimination in both humans and fish, implying that the building blocks of uniquely human mathematical abilities may be evolutionarily ancient, dating back to before the divergence of bony fish and tetrapod lineages.
Url:
DOI: 10.1371/journal.pone.0031923
PubMed: 22355405
PubMed Central: 3280231
Affiliations:
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Psychology, University of Padova, Padova</wicri:regionArea><wicri:noRegion>Padova</wicri:noRegion></affiliation></author><author><name sortKey="Bisazza, Angelo" sort="Bisazza, Angelo" uniqKey="Bisazza A" first="Angelo" last="Bisazza">Angelo Bisazza</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of General Psychology, University of Padova, Padova, Italy</addr-line></nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Department of General Psychology, University of Padova, Padova</wicri:regionArea><wicri:noRegion>Padova</wicri:noRegion></affiliation></author><author><name sortKey="Butterworth, Brian" sort="Butterworth, Brian" uniqKey="Butterworth B" first="Brian" last="Butterworth">Brian Butterworth</name><affiliation wicri:level="3"><nlm:aff id="aff2"><addr-line>Institute of Cognitive Neuroscience, University College of London, London, United Kingdom</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute of Cognitive Neuroscience, University College of London, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22355405</idno><idno type="pmc">3280231</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280231</idno><idno type="RBID">PMC:3280231</idno><idno type="doi">10.1371/journal.pone.0031923</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">000205</idno><idno type="wicri:Area/Pmc/Curation">000205</idno><idno type="wicri:Area/Pmc/Checkpoint">000117</idno><idno type="wicri:Area/Ncbi/Merge">000124</idno><idno type="wicri:Area/Ncbi/Curation">000124</idno><idno type="wicri:Area/Ncbi/Checkpoint">000124</idno><idno type="wicri:Area/Main/Merge">000161</idno><idno type="wicri:Area/Main/Curation">000161</idno><idno type="wicri:Area/Main/Exploration">000161</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Evidence for Two Numerical Systems That Are Similar in Humans and Guppies</title><author><name sortKey="Agrillo, Christian" sort="Agrillo, Christian" uniqKey="Agrillo C" first="Christian" last="Agrillo">Christian Agrillo</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of General Psychology, University of Padova, Padova, Italy</addr-line></nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Department of General Psychology, University of Padova, Padova</wicri:regionArea><wicri:noRegion>Padova</wicri:noRegion></affiliation></author><author><name sortKey="Piffer, Laura" sort="Piffer, Laura" uniqKey="Piffer L" first="Laura" last="Piffer">Laura Piffer</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of General Psychology, University of Padova, Padova, Italy</addr-line></nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Department of General Psychology, University of Padova, Padova</wicri:regionArea><wicri:noRegion>Padova</wicri:noRegion></affiliation></author><author><name sortKey="Bisazza, Angelo" sort="Bisazza, Angelo" uniqKey="Bisazza A" first="Angelo" last="Bisazza">Angelo Bisazza</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of General Psychology, University of Padova, Padova, Italy</addr-line></nlm:aff><country xml:lang="fr">Italie</country><wicri:regionArea>Department of General Psychology, University of Padova, Padova</wicri:regionArea><wicri:noRegion>Padova</wicri:noRegion></affiliation></author><author><name sortKey="Butterworth, Brian" sort="Butterworth, Brian" uniqKey="Butterworth B" first="Brian" last="Butterworth">Brian Butterworth</name><affiliation wicri:level="3"><nlm:aff id="aff2"><addr-line>Institute of Cognitive Neuroscience, University College of London, London, United Kingdom</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute of Cognitive Neuroscience, University College of London, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author></analytic><series><title level="j">PLoS ONE</title><idno type="eISSN">1932-6203</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>Humans and non-human animals share an approximate non-verbal system for representing and comparing numerosities that has no upper limit and for which accuracy is dependent on the numerical ratio. Current evidence indicates that the mechanism for keeping track of individual objects can also be used for numerical purposes; if so, its accuracy will be independent of numerical ratio, but its capacity is limited to the number of items that can be tracked, about four. There is, however, growing controversy as to whether two separate number systems are present in other vertebrate species.</p></sec><sec><title>Methodology/Principal Findings</title><p>In this study, we compared the ability of undergraduate students and guppies to discriminate the same numerical ratios, both within and beyond the small number range. In both students and fish the performance was ratio-independent for the numbers 1–4, while it steadily increased with numerical distance when larger numbers were presented.</p></sec><sec><title>Conclusions/Significance</title><p>Our results suggest that two distinct systems underlie quantity discrimination in both humans and fish, implying that the building blocks of uniquely human mathematical abilities may be evolutionarily ancient, dating back to before the divergence of bony fish and tetrapod lineages.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Burr, D" uniqKey="Burr D">D Burr</name></author><author><name sortKey="Ross, J" uniqKey="Ross J">J Ross</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Nieder, A" uniqKey="Nieder A">A Nieder</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Feigenson, L" uniqKey="Feigenson L">L 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Dadda</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="G Mez Laplaza, Lm" uniqKey="G Mez Laplaza L">LM Gòmez-Laplaza</name></author><author><name sortKey="Gerlai, R" uniqKey="Gerlai R">R Gerlai</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Flombaum, Ji" uniqKey="Flombaum J">JI Flombaum</name></author><author><name sortKey="Junge, Ja" uniqKey="Junge J">JA Junge</name></author><author><name sortKey="Hauser, Md" uniqKey="Hauser M">MD Hauser</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Maxwell, Se" uniqKey="Maxwell S">SE Maxwell</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Maggard, Ma" uniqKey="Maggard M">MA Maggard</name></author><author><name sortKey="O Connell, Jb" uniqKey="O Connell J">JB O'Connell</name></author><author><name sortKey="Liu, Jh" uniqKey="Liu J">JH Liu</name></author><author><name sortKey="Etzioni, Da" uniqKey="Etzioni D">DA Etzioni</name></author><author><name sortKey="Ko, Cy" uniqKey="Ko C">CY Ko</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jennions, Md" uniqKey="Jennions M">MD Jennions</name></author><author><name sortKey="Moller, Ap" uniqKey="Moller A">AP Moller</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Beran, Mj" uniqKey="Beran M">MJ Beran</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cordes, S" uniqKey="Cordes S">S Cordes</name></author><author><name sortKey="Brannon, Em" uniqKey="Brannon E">EM Brannon</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cordes, S" uniqKey="Cordes S">S Cordes</name></author><author><name sortKey="Brannon, Em" uniqKey="Brannon E">EM Brannon</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Binoy, Vv" uniqKey="Binoy V">VV Binoy</name></author><author><name sortKey="Thomas, Kj" uniqKey="Thomas K">KJ Thomas</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Brown, C" uniqKey="Brown C">C Brown</name></author><author><name sortKey="Laland, Kn" uniqKey="Laland K">KN Laland</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bshary, R" uniqKey="Bshary R">R Bshary</name></author><author><name sortKey="Wickler, W" uniqKey="Wickler W">W Wickler</name></author><author><name sortKey="Fricke, H" uniqKey="Fricke H">H Fricke</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Stoianov, I" uniqKey="Stoianov I">I Stoianov</name></author><author><name sortKey="Zorzi, M" uniqKey="Zorzi M">M Zorzi</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Italie</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Londres</li></region><settlement><li>Londres</li></settlement></list><tree><country name="Italie"><noRegion><name sortKey="Agrillo, Christian" sort="Agrillo, Christian" uniqKey="Agrillo C" first="Christian" last="Agrillo">Christian Agrillo</name></noRegion><name sortKey="Bisazza, Angelo" sort="Bisazza, Angelo" uniqKey="Bisazza A" first="Angelo" last="Bisazza">Angelo Bisazza</name><name sortKey="Piffer, Laura" sort="Piffer, Laura" uniqKey="Piffer L" first="Laura" last="Piffer">Laura Piffer</name></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Butterworth, Brian" sort="Butterworth, Brian" uniqKey="Butterworth B" first="Brian" last="Butterworth">Brian Butterworth</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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