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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Fatores que influenciam a coopera??o em humanos

Mour?o, Rochele Vasconcelos Castelo Branco 24 February 2012 (has links)
Made available in DSpace on 2014-12-17T15:36:39Z (GMT). No. of bitstreams: 1 RocheleVCBM_TESE.pdf: 2095393 bytes, checksum: 3e32df9736d15e4a91bb5cabe3afd11b (MD5) Previous issue date: 2012-02-24 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Human cooperation is fundamentally affected by reciprocal exchange, but it is also remarkably common on the context of large and symbolically marked in-groups, which promote cooperation through the feeling of belonging to a group. In this thesis, two empirical articles were produced in order to investigate how human cooperation is affected by factors such as reciprocity, in-group behavior, in-group markers and gender. We investigated this subject through the administration of online games consisting of token donations, on which the subjects faced virtual players controlled by the experiment. We found that cooperative behavior is strongly influenced by reciprocity, and it is also affected by the in-group behavior, observed on the context of the social variables place of birth, ethnicity, and religions, once all of them acted as in-group markers. The subjects? in-group behavior was enhanced when they played with generous in-group opponents, but weakened when their in-group opponents were non-generous. It was also found that cooperation is not affected by gender, but men and women cooperated in different ways under the influence of reciprocity and in-group behavior. Women are much more reciprocal on their cooperative behavior and men are less willing to cooperate with outgroupers, even when they act generously. The overall results contribute to a better understanding of the adaptive value of cooperation, reciprocity and in-group behavior on the solution of important challenges through the human evolutionary history / A coopera??o humana, al?m ser fundamentada pelas trocas rec?procas, desenvolve-se notadamente dentro de grupos extensos e simbolicamente marcados, nos quais existe a presen?a de marcadores de grupos, elementos que promovem a coopera??o por indicar pertin?ncia compartilhada. Na presente tese de doutorado, foram produzidos dois artigos emp?ricos que investigaram como a coopera??o humana se organiza diante dos fatores reciprocidade, comportamento de favorecimento de grupos, influ?ncia de marcadores de grupo e sexo dos indiv?duos. O m?todo de investiga??o consistiu no emprego de jogos online de doa??o de fichas, nos quais os sujeitos interagiam com jogadores virtuais controlados pelo experimento. Em linhas gerais, verificamos que o comportamento cooperativo sofre forte influ?ncia da reciprocidade. A coopera??o tamb?m ? afetada pelo favorecimento de grupos, comportamento que emergiu sob a influ?ncia das vari?veis naturalidade, etnia e religi?o, as quais atuaram como marcadores de grupo. O comportamento de favorecimento de grupos dos sujeitos mostrou-se amplificado na condi??o em que os parceiros de grupo cooperaram de forma generosa e enfraquecido na condi??o em que os parceiros de grupo foram pouco generosos. Verificamos tamb?m que a coopera??o n?o ? afetada pelo sexo dos indiv?duos. Por outro lado, homens e mulheres cooperam de forma diferenciada sob a influ?ncia da reciprocidade e do comportamento de favorecimento de grupos: as mulheres apresentam um perfil mais rec?proco na coopera??o e os homens cooperam pouco com os indiv?duos que n?o pertencem ao seu grupo, mesmo quando estes s?o generosos. Os resultados dos trabalhos, tomados em conjunto, contribuem para a compreens?o do valor adaptativo da coopera??o, da reciprocidade e do comportamento de favorecimento de grupos na solu??o de desafios na hist?ria evolutiva do homem

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