Male Mating Expectations in Brazilian and American Samples.

This study aims to investigate assortative mating based on mate value from male perspective. Male participants (132 Brazilian and 106 American) evaluated hypothetical "stimulus" males described in terms of physical attractiveness, social skills, and social status (each varied in high or low levels). Participants rated each stimulus and each stimulus' preferred mating partner on nine traits. The results showed that (1) positive assortative mating was expected in romantic relationships; (2) the stimulus ratings did not vary independently, suggesting that mate value is the result of the interaction of the characteristics of individuals; and (3) that participants expected physically attractive and healthier female partners to pair with high-status male stimuli. The American and Brazilian mating expectations were similar, minor differences indicate that Brazilian participants considered men with high levels of social skills to be more ambitious and intelligent; American participants expected men of high status to be healthier; Brazilians expect men of high status to have more attractive faces, while Americans expected these men to possess more attractive bodies; and Brazilian participants assigned more attractive bodies to men of lower status. These differences reflect the influence of economic and cultural factors on the local environment. The study contributes to the understanding of the construction of market value and reveals that male expectations are in line with human mating preferences. The investigation of mating expectations can be a rich approach to investigate socio-cultural aspects that are related to mating in different cultures.

Are There Multiple Motivators for Helping Behavior in Rats?

Empathy is the ability to (a) be affected by and share the emotional state of another; (b) assess the reasons for the other's state; and (c) identify with the other, adopting their perspective. This phenomenon has been shown to exist in several species and is proposed as a motivator for prosocial behavior. The experimental study of this feature in laboratory rodents is a more viable alternative in comparison to wild animals. A recent report showed that rats opened a door to free their cage mate from a restraint box. Although this behavior has been suggested to be motivated by empathy, this fact has been questioned by several studies that proposed other motivators for the releasing behavior. In the present study, we use an adaptation of the protocol of releasing behavior to investigate aspects of empathy and pro-sociality such as familiarity and reciprocity. In addition, we addressed some potential motivational factors that could influence this behavior. The main results showed that (1) rats opened the restraint box to free conspecifics most of the time; (2) direct reciprocity or past restriction experience did not improve releasing performance, probably due to a ceiling effect; (3) after a series of trials in the presence of a restricted conspecific, the free rat continues to open the restraint box even if it is empty; (4) in general, the opening performance improves across trials and phases, resembling learning curves; (5) if the first series of trials occurs with the empty box, the opening behavior does not occur and is modest in subsequent trials with a trapped animal; (6) the exploratory drive toward the restraint box and desire for social contact do not seem to function as key motivators for releasing behavior. In conclusion, our findings do not support that the opening behavior is exclusively related to empathic motivation. While multiple factors might be involved, our study suggests that task learning triggered (and possibly reinforced) by the presence of the restricted rat can function as a motivator. Further investigations are required to fully understand the mechanisms and motivation factors guiding the releasing behavior.

Adult criticism and vigilance diminish free riding by children in a social dilemma.

In cooperative situations, individual interests can be in conflict with those of the group, creating a social dilemma in which one must choose whether to cooperate or not. Sensitivity to social stimuli is an important factor influencing cooperative behavior in such dilemmas. The current study investigated the influence of verbal feedback and vigilance by adults on children's donating behavior in a public goods game. The participants were 739 public school children, between 5 and 12 years of age, who were divided into 34 groups. Each group was assigned to one of four experimental conditions: control, positive feedback (praise), negative feedback (criticism), or vigilance. Participants then played eight rounds of the game. The children's donations were greater in the feedback and vigilance conditions, but the effects were mediated by age and rounds. The results are most likely related to concerns about reputation, which tend to become stronger with age. Older children are better at self-presentation and understanding social norms. Thus, compared with younger children, they seemed more concerned with appearing to be generous, but only when they could get credit for it. Nevertheless, children's donations still decreased across the rounds. Although adult vigilance and feedback influence children's cooperation among peers, other mechanisms are necessary to stabilize their behavior over time.

"In x out": revisando o viés de grupo através da perspectiva biológica / "In x out": revisando el sesgo de grupo a través de la perspectiva biológica

Os fatores subjacentes ao favorecimento do endogrupo e de indiferença/hostilidade ao exogrupo são amplamente estudados pela psicologia social, onde estudos reportam que, por exemplo, indivíduos confiam mais e associam palavras positivas aos membros do mesmo grupo. O estudo desses fatores pode ajudar na compreensão de fenômenos tais como preconceito e etnocentrismo. As perspectivas evolucionista e neuroendócrina vêm sendo extremamente relevantes nos últimos anos para o estudo do favoritismo ingroup. Todavia, uma busca sistemática nas bases de dados Lilacs, Scielo, Google Scholar e Web of Science por palavras-chave relacionadas ao viés de grupo demonstrou uma carência por publicações nesse tema no Brasil. Dos trabalhos recuperados, apenas um se enquadrava na perspectiva evolucionista e nenhum abordava os mecanismos neuroendócrinos do viés de grupo. Dessa forma, o objetivo do presente estudo é discutir o viés de grupo através de uma perspectiva biológica, explicitando as hipóteses para a evolução desses comportamentos, os métodos empregados para o estudo dos mesmos e as bases neuroendócrinas e os substratos neurais que os medeiam.(AU)

Los factores subyacentes al favorecimiento del endogrupo y a la indiferencia/hostilidad al exogrupo son ampliamente estudiados por la psicología social, donde estudios informan, por ejemplo, que los indivíduos confian más y asocian palabras positivas a los miembros del mismo grupo. El estúdio de esos factores puede ayudar en la comprensíon de fenómenos tales como el prejuicio y el etnocentrismo. Las perspectivas evolucionista y neuroendócrina han sido extremadamente relevantes en los últimos años para el estúdio del favoritismo ingroup. Sin embargo, una búsqueda sistemática en las bases de datos Lilacs, Scielo, Web of Science y Google Scholar por palabras claves relacionadas al sesgo de grupo demostró una carencia de publicaciones sobre ese tema en Brasil. De los trabajos recuperados sólo uno se ajustaba a la perspectiva evolucionista y ninguno abordaba los mecanismos neuroendocrino del sesgo de grupo. De esta manera, el objetivo del presente estudio es discutir el sesgo de grupo a través de una perspectiva biológica, explicando las hipótesis para la evolución de esos comportamientos, los métodos utilizados para el estúdio de ellos, las bases neuroendocrinas y los sustratos neurales que los median.(AU)

"In x Out": Revisando o Viés de Grupo através da Perspectiva Biológica / "In x Out": Revisando el Sesgo de Grupo a través de la Perspectiva Biológica / "In x Out": Reviewing the Group Bias through the Biological Perspective

Os fatores subjacentes ao favorecimento do endogrupo e de indiferença/hostilidade ao exogrupo são amplamente estudados pela psicologia social, onde estudos reportam que, por exemplo, indivíduos confiam mais e associam palavras positivas aos membros do mesmo grupo. O estudo desses fatores pode ajudar na compreensão de fenômenos tais como preconceito e etnocentrismo. As perspectivas evolucionista e neuroendócrina vêm sendo extremamente relevantes nos últimos anos para o estudo do favoritismo ingroup. Todavia, uma busca sistemática nas bases de dados Lilacs, Scielo, Google Scholar e Web of Science por palavras-chave relacionadas ao viés de grupo demonstrou uma carência por publicações nesse tema no Brasil. Dos trabalhos recuperados, apenas um se enquadrava na perspectiva evolucionista e nenhum abordava os mecanismos neuroendócrinos do viés de grupo. Dessa forma, o objetivo do presente estudo é discutir o viés de grupo através de uma perspectiva biológica, explicitando as hipóteses para a evolução desses comportamentos, os métodos empregados para o estudo dos mesmos e as bases neuroendócrinas e os substratos neurais que os medeiam.

Los factores subyacentes al favorecimiento del endogrupo y a la indiferencia/hostilidad al exogrupo son ampliamente estudiados por la psicología social, donde estudios informan, por ejemplo, que los indivíduos confian más y asocian palabras positivas a los miembros del mismo grupo. El estúdio de esos factores puede ayudar en la comprensíon de fenómenos tales como el prejuicio y el etnocentrismo. Las perspectivas evolucionista y neuroendócrina han sido extremadamente relevantes en los últimos años para el estúdio del favoritismo ingroup. Sin embargo, una búsqueda sistemática en las bases de datos Lilacs, Scielo, Web of Science y Google Scholar por palabras claves relacionadas al sesgo de grupo demostró una carencia de publicaciones sobre ese tema en Brasil. De los trabajos recuperados sólo uno se ajustaba a la perspectiva evolucionista y ninguno abordaba los mecanismos neuroendocrino del sesgo de grupo. De esta manera, el objetivo del presente estudio es discutir el sesgo de grupo a través de una perspectiva biológica, explicando las hipótesis para la evolución de esos comportamientos, los métodos utilizados para el estúdio de ellos, las bases neuroendocrinas y los sustratos neurales que los median.

The factors underlying to the ingroup favoritism and outgroup indifference/hostility are broadly studied by social psychology, where studies report that, for example, individuals trust more and associate positive words to members of the same group. The study of these factors can help in understand phenomena such as prejudice and ethonocentrism. However, a systematic search in the databases Web of Science, Google Scholar, Scielo, and Lilacs for the keywords related to group bias showed a studies shortage for this topic in Brazil. Besides, in the studies retrieved, just one fitted into evolutionary perspective and no study has approached the neuroendocrine mechanisms of the group bias. Therefore, the objective of this study was to discuss the group bias through the biological perspective, explaining the evolutionary hypothesis to the evolution of these behaviors, the methods applied to study this topic, and the neuroendocrine basis and neural substrates mediating them.

Symptoms of conduct disorder and reasons to act prosocially: A reading through evolutionary theories / Sintomatologia do transtorno da conduta e razões para agir pró-socialmente: Uma leitura através das teorias evolucionistas / Síntomas de trastorno de conducta y razones para un comportamiento pro-social: Una lectura a través de las teorías evolutivas

Based on evolutionary theories, this study analyzes reasons for sharing and retention and the association of these reasons according to age and the presence of conduct disorder symptoms in children. Therefore, the children participated in a prosocial activity, in which they had to decide if they would like to share a prize with his/her classroom best friend. Finally, the experimenter asked them to explain the reasons for his/her decision. The results showed that children considered factors such as reciprocity probability, sharing cost, benefit to the recipient, moral justification and kinship. Furthermore, the conduct disorder symptoms group showed a weak association to social issues and younger children assign greater cost on sharing the prize, compared to older ones. It is possible to understand the reasons provided by the children in the light of evolutionary theories on cooperation, altruism and generosity.

Baseado nas teorias evolucionistas, este estudo analisa as justificativas de partilha e de retenção, assim como a associação dessas justificativas com a faixa etária e a presença ou ausência de sintomatologia do transtorno da conduta em crianças. Para isso, as crianças passaram por uma atividade pró-social, na qual decidiam se gostariam de partilhar ou não com seu melhor amigo de classe. Por fim, o experimentador solicitava para que elas explicassem as razões de sua decisão. Os resultados mostraram que as crianças consideraram fatores como: probabilidade de reciprocidade, custo da partilha, benefício para o receptor, justificativas morais e parentesco. Além disso, o grupo com a sintomatologia do transtorno da conduta mostrou uma relação muito fraca com respostas relacionadas a questões sociais e as crianças mais jovens, comparadas as mais velhas, atribuíram maior custo para partilhar os objetos. As justificativas dadas pelas crianças respaldam as teorias evolucionistas sobre cooperação, altruísmo e generosidade.

Basado en las teorías evolucionistas, este estudio analiza las justificativas del compartir y del retener, así como la asociación de esas justificativas con el rango de edad, la presencia o ausencia de sintomatología de trastorno de conducta en niños. Para esto, los niños participaron de una actividad pro-social, en la cual debían decidir compartir o no con su mejor amigo de la clase. Al final, el experimentador les solicitaba que explicaran las razones de su decisión. Los resultados mostraron que los niños consideraron factores como: probabilidad de reciprocidad, costo de compartir, beneficio para el receptor, justificativas morales y parentesco. Además de eso, el grupo con la sintomatología de trastorno de conducta mostró una relación muy débil con respuestas relacionadas a cuestiones sociales y los infantes más jóvenes, comparados a los mayores, atribuyeron mayor costo para compartir los objetos. Las justificativas dadas por los infantes respaldan las teorías evolucionistas sobre cooperación, altruismo y generosidad.

The Brazilian version of the three-factor eating questionnaire-R21: psychometric evaluation and scoring pattern.

PURPOSE: This study aimed to evaluate the psychometric properties and scoring pattern of the Brazilian version of the three-factor eating questionnaire-r21 (TFEQ-R21). METHODS: Data were collected from 410 undergraduate students. Confirmatory factor analysis was conducted to examine the factor structure of the TFEQ-R21. Convergent and discriminant validity also was assessed. Cluster analysis was performed to investigate scoring patterns. RESULTS: In assessing the quality setting, the model was considered satisfactory (χ 2/gl = 2.24, CFI = 0.97, TLI = 0.96, RMSEA = 0.05). The instrument was also considered appropriate in relation to the discriminant and convergent validity. There was a positive correlation between body mass index and the dimensions of cognitive restraint (r s  = 0.449, p < 0.001) and emotional eating (r s  = 0.112, p = 0.023). Using cluster analysis three respondent profiles were identified. The profile "A" was associated with appropriate weight, the "B" was characterized by high scores in cognitive restraint dimension, and the cluster "C" focused individuals who had higher scores on the uncontrolled eating and emotional eating dimensions. CONCLUSIONS: The Brazilian version of TFEQ-R21 has adequate psychometric properties, and the identified response profiles offer a promising prospect for its use in clinical practice, in weight loss interventions.

Food cravings among Brazilian population.

This study aimed to develop and validate a Brazilian version of the Food Craving Inventory (FCI-Br), adapted to the cultural-gastronomic context of Brazil, and to explore this behavior among adult Brazilians. The Study 1 population consisted of 453 adults from all regions of Brazil. Participants responded to a preliminary form of the instrument online. Exploratory factor analysis revealed an FCI-Br presenting 23 items and three factors: High Fat, Sweet Food and Traditional Meal. The FCI-Br overall reliability was considered adequate (α = 0.82), as were each of the sub-scales. The food items receiving higher average scores from the application of the instrument were chocolate (3.14 ± 1.28; women) and bread (2.94 ± 1.44, men). A significant association was observed between the specific-craving for Sweet Food and female respondents. Most participants reported experiencing more frequent episodes of food craving when alone (68.0%; n = 391) and during the afternoon (32.2%; n = 127) or evening (43.8%; n = 173) hours. Application of the FCI-Br in a population of 649 university students (Study 2) demonstrated a good adjustment of the model developed according to the Confirmatory factor analysis (χ2/gl = 2.82, CFI = 0.94; TLI = 0.93; RMSEA = 0.06). The current findings indicate that the FCI-Br has adequate psychometric properties to measure craving behavior with respect to specific food groups in the resident population of Brazil. The results of this study also shed light on the importance of considering the cultural diversity of a population when investigating eating behaviors.

Stickers versus wafers: The value of resource in a public goods game with children / Adesivos versus wafers: O valor do recurso em um jogo de bens públicos com crianças / Pegatinas versus obleas: El valor del recurso en un juego de bienes públicos con niños

Abstract We investigated how the type of resource, food (wafer) or non-food (sticker), age and sex influence cooperation in children. 251 children were tested in a public goods game during eight rounds in two experimental conditions: wafer or sticker condition. Wafers were all of the same kind but stickers were varied. The results indicated that 1) older children donated more stickers than younger children, but they did not differ in relation to wafer donations; and 2) sticker donations remained high along the rounds, while wafer donations decreased. We propose that different strategies may be adopted according to the quality, particularly to the diversity of the resource used, and the cost of cooperation may be overcome when it is more advantageous to wait for a future reward.

Resumo Investigamos como o tipo de recurso, alimentar (wafer) ou não-alimentar (adesivo), a idade e o sexo influenciam a cooperação em crianças. Foram testadas 251 crianças em um jogo de bens públicos durante oito rodadas, em duas condições experimentais: condições wafer ou adesivo. Os wafers eram todos iguais, mas os adesivos eram variados. Os resultados indicaram que 1) as crianças mais velhas doaram mais adesivos do que as crianças mais jovens, mas elas não diferiram em relação às doações de wafers; e 2) as doações de adesivos mantiveram-se elevadas ao longo das rodadas, enquanto as doações de wafers diminuíram. Propomos que diferentes estratégias podem ser adotadas de acordo com a qualidade, particularmente quanto à diversidade do recurso utilizado, e o custo de cooperar pode ser superado quando é mais vantajoso esperar por uma recompensa.

Resumen Investigamos como el tipo de recurso, alimentar (oblea) o no alimentar (pegatina), la edad y el género influyen en la cooperación de los niños. 251 niños fueron investigados en ocho partidos de un juego de bienes públicos, en dos condiciones experimentales: oblea o pegatina. Las obleas eran todas iguales, pero las pegatinas eran variadas. Los resultados indicaron que 1) los niños mayores donaron más pegatinas que los niños más pequeños, pero no difieren con respecto a las donaciones de obleas; y 2) las donaciones de pegatinas se mantuvieron altas durante las rondas, mientras que las donaciones de obleas disminuyeron. Proponemos que diferentes estrategias pueden ser adoptadas de acuerdo con la calidad, particularmente con respecto a la diversidad de los recursos utilizados, y el costo de la cooperación puede ser superado cuando es más ventajoso esperar por una recompensa futura mejor.

Stickers versus wafers: the value of resource in a public goods game with children / Adesivos versus wafers: o valor do recurso em um jogo de bens públicos com crianças / Pegatinas versus obleas: el valor del recurso en un juego de bienes públicos con niños

We investigated how the type of resource, food (wafer) or non-food (sticker), age and sex influence cooperation in children. 251 children were tested in a public goods game during eight rounds in two experimental conditions: wafer or sticker condition. Wafers were all of the same kind but stickers were varied. The results indicated that 1) older children donated more stickers than younger children, but they did not differ in relation to wafer donations; and 2) sticker donations remained high along the rounds, while wafer donations decreased. We propose that different strategies may be adopted according to the quality, particularly to the diversity of the resource used, and the cost of cooperation may be overcome when it is more advantageous to wait for a future reward.

Investigamos como o tipo de recurso, alimentar (wafer) ou não-alimentar (adesivo), a idade e o sexo influenciam a cooperação em crianças. Foram testadas 251 crianças em um jogo de bens públicos durante oito rodadas, em duas condições experimentais: condições wafer ou adesivo. Os wafers eram todos iguais, mas os adesivos eram variados. Os resultados indicaram que 1) as crianças mais velhas doaram mais adesivos do que as crianças mais jovens, mas elas não diferiram em relação às doações de wafers; e 2) as doações de adesivos mantiveram-se elevadas ao longo das rodadas, enquanto as doações de wafers diminuíram. Propomos que diferentes estratégias podem ser adotadas de acordo com a qualidade, particularmente quanto à diversidade do recurso utilizado, e o custo de cooperar pode ser superado quando é mais vantajoso esperar por uma recompensa.

Investigamos como el tipo de recurso, alimentar (oblea) o no alimentar (pegatina), la edad y el género influyen en la cooperación de los niños. 251 niños fueron investigados en ocho partidos de un juego de bienes públicos, en dos condiciones experimentales: oblea o pegatina. Las obleas eran todas iguales, pero las pegatinas eran variadas. Los resultados indicaron que 1) los niños mayores donaron más pegatinas que los niños más pequeños, pero no difieren con respecto a las donaciones de obleas; y 2) las donaciones de pegatinas se mantuvieron altas durante las rondas, mientras que las donaciones de obleas disminuyeron. Proponemos que diferentes estrategias pueden ser adoptadas de acuerdo con la calidad, particularmente con respecto a la diversidad de los recursos utilizados, y el costo de la cooperación puede ser superado cuando es más ventajoso esperar por una recompensa futura mejor.

Internationalization: towards new horizons / Internacionalização: rumo a novos horizontes

This article aims to examine the internationalization actions of Brazilian Postgraduate Programs. Data were used from the Coordination for the Improvement of Higher Education Personnel (CAPES) and the Ministry of Education (MEC), which perform an evaluation of postgraduate courses every three years. Recently, the period was changed to four years. The data reported in the Indicators Booklet of productions of each program, selected according to 8 criteria, allowed the grouping of activities. The comments made on the Evaluation Form were then examined. This showed that internationalization actions are varied and are overwhelmingly present in the Brazilian programs (n= 49). It was verified that the evaluation valorizes production in international publications, often to the detriment of the various actions that effectively contribute to internationalization. It was concluded that, despite publication in international media being a relevant indicator, it does not definitively indicate participation in international knowledge production. The demand, on behalf of students and researchers, for the qualification that is provided in the country would be the most accurate indicator of internationalization. No courses, in the period examined, accommodated non-Portuguese speakers. Despite the efforts already made toward effective internationalization, there remains the important and urgent step: to make the National Postgraduate System a reference point in the international community. (AU)

Este artigo teve como objetivo examinar as ações de internacionalização dos Programas de Pós-graduação brasileiros. Utilizou dados da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes), Ministério da Educação (MEC), que trienalmente realiza a Avaliação dos cursos. Recentemente, a avaliação passou a ser quadrienal. Valeu-se dos dados declarados no Caderno de Indicadores de produções de cada Programa, que, selecionados de acordo com 8 critérios, permitiram o agrupamento das atividades. Em seguida, examinou os comentários realizados pela Ficha de Avaliação. Mostrou que ações de internacionalização são variadas e estão maciçamente presentes nos Programas brasileiros (n=49). Observou que a Avaliação privilegia a produção em publicações estrangeiras, quase sempre em detrimento das diversas ações que contribuem efetivamente para a internacionalização. Concluiu que, apesar da publicação em veículos internacionais ser um indicador relevante, não aponta em definitivo para a participação na produção internacional de conhecimento. A procura, por parte de alunos e pesquisadores, pela formação que é dada no país seria o indicador mais preciso de internacionalização. Nenhum curso, no período examinado, ofertava cursos que pudessem ser acompanhados por não falantes do português. Apesar dos esforços já realizados em direção a uma efetiva internacionalização, resta o importante e urgente passo: tornar a pós-graduação nacional um ponto de referência na comunidade internacional. (AU)

Male and female breeding strategies in a cooperative primate.

Marmosets are cooperative breeders organized as extended family groups, but breeding is generally restricted to a single pair. Breeding competition is fierce in female marmosets; males, on the other hand, show low levels of intragroup aggression. We investigated male and female breeding strategies and the resulting reproductive output in 9 wild groups. Reproductive output, tenure of breeding animals, identification of the breeding system, breeding position replacements, migration and infanticide were recorded; also, we recorded grooming and aggression. Replacement of the breeding male or female was observed on nine occasions. On four occasions, the son of the breeding male inherited the breeding post, but we never observed inheritance of a breeding post by a daughter. Mostly, females attained a breeding post by immigrating to a group that had a breeding vacancy. Our results showed that Callithrix jacchus males and females use different strategies to attain a breeding position and maintain it for as long as possible. These strategies prolong the tenure of the breeding position, which is the best way to produce a large number of offspring. This article is part of a Special Issue entitled: Neotropical Behaviour.

Karyotype patterns of Hypsolebias antenori (Cyprinodontiformes: Rivulidae): an endangered killifish of the semiarid region of Brazil.

Annual fish which belong to the order Cyprinodontiformes constitute an excellent model for evolutionary studies. their short life cycle, distribution in ecologically dynamic environments, and low agility make them favorable for genetic analyses. The species Hypsolebias antenori (Rivulidae), encountered in seasonal pools located in the semiarid region of Northeastern Brazil, has been the object of surveys with a view to study its ecological and behavioral aspects. This study reports on the karyotype patterns of this species, which represents the first contribution to the cytogenetics of this genus. The karyotype of this species is composed of 2n = 48 chromosomes (6m + 4 sm + 36 st; NF = 96); the heterochromatic regions are located in centromeric or pericentromeric position and are more pronounced in the nucleolar organizer regions. Two sites Ag-NORs/CMA+/DAPI were identified in the short arms of pairs 2 (metacentric) and 21 (subtelocentric). Unlike the other species of this family which show an evolution modulated by events of centric fusions, H. antenori shows the maintenance of a basal diploid number and the large number of bibrachial elements indicates karyotypic diversification derived by pericentric inversions. Cytogenetic analyzes in this species will provide new taxonomic markers capable of being utilized in conservation issues and systematics.

Do people adjust career choices according to socioeconomic conditions?: an evolutionary analysis of future discounting

The ability to process environmental cues and make advantageous choices has been fundamental during human evolution. Discounting future rewards is a capacity of our evolved mind and could be useful for understanding career decisions. This paper investigated the relationship between real-life plans, career choices, and income indicators based on an evolutionary approach of future discounting. Study 1 analyzed the plans of 200 senior high school students, and Study 2 analyzed a database of 46,649 applicants to a Brazilian public university. The results demonstrated that lower income subjects made career decisions with quicker returns and smaller investments. They included a job in immediate plans more frequently than higher income students who planned to go to a university. Analyzing the applicants' choices, higher income subjects sought courses with greater entrance difficulty. We suggest that individuals adjust career plans and choices according to their socioeconomic conditions and assume different discounting rates by considering risks of failure and future gains...

Surgimento e manutenção do comportamento religioso: contribuições da teoria evolucionista / The emergence and maintenance of religious behavior: Insights from an Evolutionary Perspective / La aparición y el mantenimiento de la conducta religiosa: Perspectivas desde una Perspectiva Evolutiva

O comportamento religioso por muito tempo foi objeto de estudo apenas das ciências humanas, havendo poucas tentativas sistemáticas de uma interpretação Darwiniana de seu surgimento e/ou manutenção nas populações humanas. No entanto, as ciências naturais, juntamente com pesquisadores das mais diversas áreas, estão se voltando para o estudo sistemático do comportamento religioso através de uma perspectiva evolucionista. Em função desse novo e crescente campo de pesquisa, iremos apresentar algumas das principais hipóteses evolucionistas para a manutenção do comportamento religioso nas populações humanas e analisar os principais resultados empíricos encontrados até o momento. Apesar da enorme riqueza de crenças e reconhecida relevância dada à religião no nosso país, pouquíssimos pesquisadores brasileiros trabalham com esse tema. Acreditamos que essa revisão poderá ser importante para a divulgação e incentivo ao estudo do comportamento religioso pela perspectiva evolucionista no nosso país por pesquisadores das mais diversas áreas.(AU)

Religious behavior has long been the object of study by the humanities, with only few attempts to analyze its emergence and maintenance in human population from a Darwinian perspective. However, the natural sciences, together with researchers from various fields, are turning to the systematic study of religious behavior through an evolutionary perspective. Due to this new and growing field of research, we will review some of the major evolutionary hypotheses for the maintenance of religious behavior in human populations and analyze the main empirical results obtained until now. Despite the diversity of beliefs and recognized importance given to religion in our country, very few Brazilian researchers are working on this theme. We believe that this review may be important to raise awareness and encourage the study of religious behavior by evolutionary perspective on our country by scholars from different fields.(AU)

El comportamiento religioso ha sido durante mucho tiempo objeto de estudio sólo de las humanidades, y considerado el resultado de las influencias culturales y sin influencia biológica. Sin embargo, las ciencias naturales, junto con investigadores de diversos campos, están recurriendo al estudio sistemático de la conducta religiosa a través de una perspectiva evolutiva. Debido a este nuevo y creciente campo de la investigación, vamos a presentar algunas de las principales hipótesis evolutivas para el mantenimiento de la conducta religiosa en las poblaciones humanas y analizar los principales resultados empíricos obtenidos hasta ahora. A pesar de la gran cantidad de creencias y reconocida importancia dada a la religión en nuestro país, muy pocos investigadores brasileños trabajan en este tema. Creemos que este examen puede ser importante para difundir y fomentar el estudio de la conducta religiosa por la perspectiva evolutiva en nuestro país por investigadores de diversos campos.(AU)

Surgimento e manutenção do comportamento religioso: contribuições da teoria evolucionista / The emergence and maintenance of religious behavior: Insights from an Evolutionary Perspective / La aparición y el mantenimiento de la conducta religiosa: Perspectivas desde una Perspectiva Evolutiva

O comportamento religioso por muito tempo foi objeto de estudo apenas das ciências humanas, havendo poucas tentativas sistemáticas de uma interpretação Darwiniana de seu surgimento e/ou manutenção nas populações humanas. No entanto, as ciências naturais, juntamente com pesquisadores das mais diversas áreas, estão se voltando para o estudo sistemático do comportamento religioso através de uma perspectiva evolucionista. Em função desse novo e crescente campo de pesquisa, iremos apresentar algumas das principais hipóteses evolucionistas para a manutenção do comportamento religioso nas populações humanas e analisar os principais resultados empíricos encontrados até o momento. Apesar da enorme riqueza de crenças e reconhecida relevância dada à religião no nosso país, pouquíssimos pesquisadores brasileiros trabalham com esse tema. Acreditamos que essa revisão poderá ser importante para a divulgação e incentivo ao estudo do comportamento religioso pela perspectiva evolucionista no nosso país por pesquisadores das mais diversas áreas...

Religious behavior has long been the object of study by the humanities, with only few attempts to analyze its emergence and maintenance in human population from a Darwinian perspective. However, the natural sciences, together with researchers from various fields, are turning to the systematic study of religious behavior through an evolutionary perspective. Due to this new and growing field of research, we will review some of the major evolutionary hypotheses for the maintenance of religious behavior in human populations and analyze the main empirical results obtained until now. Despite the diversity of beliefs and recognized importance given to religion in our country, very few Brazilian researchers are working on this theme. We believe that this review may be important to raise awareness and encourage the study of religious behavior by evolutionary perspective on our country by scholars from different fields...

El comportamiento religioso ha sido durante mucho tiempo objeto de estudio sólo de las humanidades, y considerado el resultado de las influencias culturales y sin influencia biológica. Sin embargo, las ciencias naturales, junto con investigadores de diversos campos, están recurriendo al estudio sistemático de la conducta religiosa a través de una perspectiva evolutiva. Debido a este nuevo y creciente campo de la investigación, vamos a presentar algunas de las principales hipótesis evolutivas para el mantenimiento de la conducta religiosa en las poblaciones humanas y analizar los principales resultados empíricos obtenidos hasta ahora. A pesar de la gran cantidad de creencias y reconocida importancia dada a la religión en nuestro país, muy pocos investigadores brasileños trabajan en este tema. Creemos que este examen puede ser importante para difundir y fomentar el estudio de la conducta religiosa por la perspectiva evolutiva en nuestro país por investigadores de diversos campos...

Romantic partners in a market perspective: expectations about what ensures a highly desirable partner.

This study used the biological market perspective and influential statistical models from the marketing field to investigate males' and females' expectations regarding which combination of characteristics are most relevant in ensuring desirable partnerships for same-sex individuals. Thus, 358 Brazilian undergraduates assessed eight descriptions of same-gender stimulus targets (formulated with different levels of physical attractiveness, social skills, and current or prospective social status) and evaluated the overall desirability of the targets' expected or probable partners. From the possible combinations, three groups emerged: for one group, mainly composed of men, status characteristics were the most important attributes; for the others, mostly composed of women, social skills or physical characteristics were identified as most important in appealing to a desirable partner. This work expands the understanding of variability in male and female romantic expectations, and its implications are discussed from an evolutionary perspective.

Do people adjust career choices according to socioeconomic conditions?: an evolutionary analysis of future discounting

The ability to process environmental cues and make advantageous choices has been fundamental during human evolution. Discounting future rewards is a capacity of our evolved mind and could be useful for understanding career decisions. This paper investigated the relationship between real-life plans, career choices, and income indicators based on an evolutionary approach of future discounting. Study 1 analyzed the plans of 200 senior high school students, and Study 2 analyzed a database of 46,649 applicants to a Brazilian public university. The results demonstrated that lower income subjects made career decisions with quicker returns and smaller investments. They included a job in immediate plans more frequently than higher income students who planned to go to a university. Analyzing the applicants' choices, higher income subjects sought courses with greater entrance difficulty. We suggest that individuals adjust career plans and choices according to their socioeconomic conditions and assume different discounting rates by considering risks of failure and future gains.(AU)

Temporal dynamics of reproduction of the neotropical fish, Crenicichla menezesi (Perciformes: Cichlidae).

The reproductive biology and the gonadal development cycle of the Neotropical cichlid fish, Crenicichla menezesi, is described. This species exhibits sexual dimorphism only during the spawning season. First sexual maturity of females is attained earlier than the males. Both macroscopic and histological investigations of ovaries and testes revealed four stages of gonadal maturation. Mean batch fecundity of females was 372 (± 10,41) of mature oocytes. This species is a partial spawner, with an extended spawning period. Monthly values of GSI and the condition factor are negatively correlated during the gonadal development cycle of this species.