Publicação
Individual memory and the emergence of cooperation
| Resumo: | The social brain hypothesis states that selection pressures associated with complex social relationships have driven the evolution of sophisticated cognitive processes in primates. We investigated how the size of cooperative primate communities depends on the memory of each of its members and on the pressure exerted by natural selection. To this end we devised an evolutionary game theoretical model in which social interactions are modelled in terms of a repeated Prisoner's Dilemma played by individuals who may exhibit a different memory capacity. Here, memory is greatly simplified and mapped onto a single parameter m describing the number of conspecifics whose previous action each individual can remember. We show that increasing m enables cooperation to emerge and be maintained in groups of increasing sizes. Furthermore, harsher social dilemmas lead to the need for a higher m in order to ensure high levels of cooperation. Finally, we show how the interplay between the dilemma individuals face and their memory capacity m allows us to define a critical group size below which cooperation may thrive, and how this value depends sensitively on the strength of natural selection. |
|---|---|
| Autores principais: | Moreira, João |
| Outros Autores: | Vukov, Jeromos; Sousa, Claudia Maria A. Margato Ramalho; Santos, Francisco C.; D'Almeida, André F.; Santos, Marta D.; Pacheco, Jorge M. |
| Assunto: | Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| Ano: | 2013 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| _version_ | 1868984061974806528 |
|---|---|
| author | Moreira, João |
| author2 | Vukov, Jeromos Sousa, Claudia Maria A. Margato Ramalho Santos, Francisco C. D'Almeida, André F. Santos, Marta D. Pacheco, Jorge M. |
| author2_role | author author author author author author |
| author_facet | Moreira, João Vukov, Jeromos Sousa, Claudia Maria A. Margato Ramalho Santos, Francisco C. D'Almeida, André F. Santos, Marta D. Pacheco, Jorge M. |
| author_role | author |
| contributor_name_str_mv | Departamento de Antropologia (DA) Centro em Rede de Investigação em Antropologia (CRIA - NOVA FCSH) Elsevier Science B.V., Amsterdam. RUN |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Moreira, João\"},{\"Person.name\":\"Vukov, Jeromos\"},{\"Person.name\":\"Sousa, Claudia Maria A. Margato Ramalho\"},{\"Person.name\":\"Santos, Francisco C.\"},{\"Person.name\":\"D'Almeida, André F.\"},{\"Person.name\":\"Santos, Marta D.\"},{\"Person.name\":\"Pacheco, Jorge M.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Departamento de Antropologia (DA) Centro em Rede de Investigação em Antropologia (CRIA - NOVA FCSH) Elsevier Science B.V., Amsterdam. RUN |
| datacite.creators.creator.creatorName.fl_str_mv | Moreira, João Vukov, Jeromos Sousa, Claudia Maria A. Margato Ramalho Santos, Francisco C. D'Almeida, André F. Santos, Marta D. Pacheco, Jorge M. |
| datacite.date.Accepted.fl_str_mv | 2013-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-02-28T23:09:31Z |
| datacite.date.embargoed.fl_str_mv | 2019-02-28T23:09:31Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| datacite.titles.title.fl_str_mv | Individual memory and the emergence of cooperation |
| dc.contributor.none.fl_str_mv | Departamento de Antropologia (DA) Centro em Rede de Investigação em Antropologia (CRIA - NOVA FCSH) Elsevier Science B.V., Amsterdam. RUN |
| dc.creator.none.fl_str_mv | Moreira, João Vukov, Jeromos Sousa, Claudia Maria A. Margato Ramalho Santos, Francisco C. D'Almeida, André F. Santos, Marta D. Pacheco, Jorge M. |
| dc.date.Accepted.fl_str_mv | 2013-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-02-28T23:09:31Z |
| dc.date.embargoed.fl_str_mv | 2019-02-28T23:09:31Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://www.scopus.com/inward/record.url?scp=84872337131&partnerID=8YFLogxK |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| dc.title.fl_str_mv | Individual memory and the emergence of cooperation |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The social brain hypothesis states that selection pressures associated with complex social relationships have driven the evolution of sophisticated cognitive processes in primates. We investigated how the size of cooperative primate communities depends on the memory of each of its members and on the pressure exerted by natural selection. To this end we devised an evolutionary game theoretical model in which social interactions are modelled in terms of a repeated Prisoner's Dilemma played by individuals who may exhibit a different memory capacity. Here, memory is greatly simplified and mapped onto a single parameter m describing the number of conspecifics whose previous action each individual can remember. We show that increasing m enables cooperation to emerge and be maintained in groups of increasing sizes. Furthermore, harsher social dilemmas lead to the need for a higher m in order to ensure high levels of cooperation. Finally, we show how the interplay between the dilemma individuals face and their memory capacity m allows us to define a critical group size below which cooperation may thrive, and how this value depends sensitively on the strength of natural selection. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
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| inst_facet_str | urn:organizationAcronym:unl{{{_:::_}}}Universidade Nova de Lisboa |
| instacron_str | unl |
| institution | Universidade Nova de Lisboa |
| instname_str | Universidade Nova de Lisboa |
| language | eng |
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| network_name_str | Repositório Institucional da UNL |
| oai_identifier_str | oai:run.unl.pt:10362/61960 |
| organization_str_mv | urn:organizationAcronym:unl |
| person_str_mv | Moreira, João Vukov, Jeromos Sousa, Claudia Maria A. Margato Ramalho Santos, Francisco C. D'Almeida, André F. Santos, Marta D. Pacheco, Jorge M. |
| publishDate | 2013 |
| repo_facet_str | urn:repositoryAcronym:run{{{_:::_}}}Repositório Institucional da UNL |
| reponame_str | Repositório Institucional da UNL |
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| spelling | engenThe social brain hypothesis states that selection pressures associated with complex social relationships have driven the evolution of sophisticated cognitive processes in primates. We investigated how the size of cooperative primate communities depends on the memory of each of its members and on the pressure exerted by natural selection. To this end we devised an evolutionary game theoretical model in which social interactions are modelled in terms of a repeated Prisoner's Dilemma played by individuals who may exhibit a different memory capacity. Here, memory is greatly simplified and mapped onto a single parameter m describing the number of conspecifics whose previous action each individual can remember. We show that increasing m enables cooperation to emerge and be maintained in groups of increasing sizes. Furthermore, harsher social dilemmas lead to the need for a higher m in order to ensure high levels of cooperation. Finally, we show how the interplay between the dilemma individuals face and their memory capacity m allows us to define a critical group size below which cooperation may thrive, and how this value depends sensitively on the strength of natural selection.application/pdfenIndividual memory and the emergence of cooperationMoreira, JoãoVukov, JeromosSousa, Claudia Maria A. Margato RamalhoSantos, Francisco C.D'Almeida, André F.Santos, Marta D.Pacheco, Jorge M.Departamento de Antropologia (DA)Centro em Rede de Investigação em Antropologia (CRIA - NOVA FCSH)Elsevier Science B.V., Amsterdam.HostingInstitutionOrganizationalRUNe-mailmailto:run@unl.ptrun@unl.ptISSNIsPartOf0003-3472URNIsPartOfPURE: 4233131URNIsPartOfPURE UUID: d21b07c4-2606-4091-a512-c4e7c411fee9URNIsPartOfScopus: 84872337131DOIIsPartOf10.1016/j.anbehav.2012.10.0302019-02-28T23:09:31Z2013-01-012013-01-01T00:00:00ZURLhttp://www.scopus.com/inward/record.url?scp=84872337131&partnerID=8YFLogxKhttp://purl.org/coar/access_right/c_abf2open accessCooperationEvolutionary game theoryMemoryReciprocityEcology, Evolution, Behavior and SystematicsAnimal Science and Zoology316003 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://run.unl.pt/bitstreams/1e2c1de1-37b7-441a-ba9c-eeb70bcd0bc2/download |
| spellingShingle | Individual memory and the emergence of cooperation Moreira, João Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| status | SINGLETON |
| subject.fl_str_mv | Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| title | Individual memory and the emergence of cooperation |
| title_full | Individual memory and the emergence of cooperation |
| title_fullStr | Individual memory and the emergence of cooperation |
| title_full_unstemmed | Individual memory and the emergence of cooperation |
| title_short | Individual memory and the emergence of cooperation |
| title_sort | Individual memory and the emergence of cooperation |
| topic | Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| topic_facet | Cooperation Evolutionary game theory Memory Reciprocity Ecology, Evolution, Behavior and Systematics Animal Science and Zoology |
| url | http://www.scopus.com/inward/record.url?scp=84872337131&partnerID=8YFLogxK |
| visible | 1 |