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Adesão ao tratamento anti-retroviral por cuidadores de crianças e adolescentes soropositivos de uma Unidade de Saúde do Estado do Pará
(Universidade Federal do Pará, 2007-02) BRANCO, Caroline Mota; FERREIRA, Eleonora Arnaud Pereira; http://lattes.cnpq.br/6600933695027723
The adhesion to treatment has been receiving a lot of attention in Health´s Psychology these years. Studies in this area reveal that the patients who don't take part in the treatment cannot receive benefits of therapeutical intervention. The literature about adhesion in the anti-retroviral´s treatment reveals that is the caretaker who usually has the responsibility for managing soropositive children and teenager´s treatment. This study aims to describe the standard adhesion of caretakers treatment who live in the State of Pará, identifying the variables that interfere in their participation. It still reveals the types of cope strategies used to deal with the adverse conditions of soropositivity. For that, it was carried out a descriptive study, of transverse cut, with 30 caretakers, enrolled in the “Unidade de Referência Materno-infantil e Adolescente do Estado do Pará” (UREMIA), using, as instruments of data collection, an interview with caretakers - which investigated socialdemografic, clinical and psicosocial children and teenager's aspects - and the “Escala Modos of Enfrentamento de Problemas” (EMEP). Concerning to caretakers participation, it was observed that some conditions facilitated the treatment´s adhesion. Those conditions were related to varied of family organization (such as the number of people that lived in a house), to the history of treatment interruption and the self-report of caretakers about the fulfilment standard which should be emitted about the success (or failure) of the adhesion. The influence of those varied demonstrated the influence of behavior control made by rules, because the caretakers emitted the fulfillment standard classified as "adhesion" in order to avoid being in contact with the aversive consequences of the non-continuation of the treatment. Concerning to the cope strategies, it was showed a major grade for Factor 3, emphasizing the use of strategies focused on religious practices and/or imaginative thoughts. This research verified that the caretakers of the sample avoided thinking about the soropositivity problem as it is really constituted, using religious thoughts or "magic" to continue working with the daily routine of the subject coping, which involved the condition of children and teenager’s soropositivity. Based on all this data, this research suggests that more studies should be carried out in order to investigate themes related to the function of social contigences about the behavior of children and teenager’s caretakers from Pará, and also investigate aspects concerned to the diagnosis revealing.
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Adesão ao tratamento da malária: um estudo em comunidades do entorno da Usina Hidrelétrica de Tucuruí - Pará
(Universidade Federal do Pará, 2008) ROCHA, Maria de Nazaré Almeida; FERREIRA, Eleonora Arnaud Pereira; http://lattes.cnpq.br/6600933695027723
Malaria, infectious disease, caused by the protozoan Plasmodium, transmitted to humans by the bite of female mosquito of the genus Anopheles. Currently puts at risk 40% of the world population. In Brazil occurs mainly in the Amazon region where they are concentrated 99.7% of cases. In communities located around the lake of Tucuruí the occurrence of malaria is high and the residents do not have efficient services that provide appropriate prophylaxis and therapy. This research has the purpose of examining the occurrence of conduct of accession to drug treatment and prevention of malaria in people living in the surrounding communities of the Tucuruí hydroelectric power, state of Para, through comparison of three conditions for intervention: Timing ( n = 10), Monitoring (n = 9) and Monitoring with information (n = 10). To quantitatively assess the effects of intervention in the conduct adopted three conditions were compared by non-parametric statistical methods: the Chi-square test and Binomial test. It was previously set the significance level alpha = 0.05 to reject the null hypothesis. The adherence to treatment and the conditions Routine Monitoring was marginal, however, in the condition Monitoring with information was found that after the intervention 80% of the participants joined significantly (p <0.05) to treatment, demonstrating, effectiveness of intervention. As to the knowledge of malaria, in the condition Monitoring with information when compared with other conditions, after intervention, was obtained p-value = 0.0466 (significant) indicating that the intervention promoted increase in the level of knowledge of participants on malaria. The analysis of change in the behavioral repertoire was held in thirteen items. Results have been achieved more success in then condition Monitoring with information on nine items was observed significant change of attitude of the participants, highlighting the fact that these nine items the p-value <0.05 was certificate as evidence of statistical significance of this conclusion. The comparison between the conditions Monitoring and Monitoring with information presented significant difference in eight items. There was a statistically significant difference (p <0.05) in the following items: Use mosquito net, notify the officer of health, keep the trees pruned or cut, not bathing in the river in times of danger, Wear clothes suitable for enter the forest, Use appropriate clothing for fishing, not staying at night and Use repellents as andiroba or similar. In summary, the intervention was successful to contribute to effective treatment of malaria and increase the level of knowledge about the disease.
Acesso aberto (Open Access)
Análise da competição entre os efeitos de consequências imediatas e efeitos de justificativas sobre o seguimento de regras
(Universidade Federal do Pará, 2016-03-18) FARIAS, Andréa Fonseca; ALBUQUERQUE, Luiz Carlos de; http://lattes.cnpq.br/5261537967195189
This study aimed to investigate the effects of rules with additional justifications of Type 1 (reports about possible consequences of rule governed behavior) and Type 2 (reports about eventual approval or not, of the rule following) on the maintenance of rule governed behavior, after a change in programmed contingencies when this behavior starts to produce loss of reinforcer (points exchangeable for cash). To this end, 44 participants were exposed to a matching to sample procedure. The task was to point to each of the three comparison stimuli in a given sequence. Each comparison stimulus had only one dimension - color (C), thickness (T) or shape (S) - in common with the sample and differed on all other dimensions. Experiment included six conditions. Each condition was composed of four phases. Phases 1 and 3 started with the presentation of a rule related to programmed contingencies, while Phases 2 and 4 were marked by an unsignaled change, in such contingencies. Phases 1 and 3 differed only as to the justifications presented to rule following. The maintenance of the rule governed behavior avoided loss of the programmed reinforcer in Phases 1 and 3, and produced such loss in Phases 2 and 4. Overall, results showed that rules with justifications can alter the probability of the behavior specified by them to occur in the future. The role of control by rules in the explanation of behavior was discussed.
Acesso aberto (Open Access)
Análise da investigação dos determinantes do comportamento homossexual humano
(Universidade Federal do Pará, 2005-07-21) MENEZES, Aline Beckmann de Castro; CARVALHO NETO, Marcus Bentes de; http://lattes.cnpq.br/7613198431695463
The behavior determination debate lasts since Antiquity, usually based in dichotomic arguments. Actual tendency of behavior determination comprehension points out to an interacionist perspective, analyzing genetic, biological and environmental influences combined over behavior. Many empirical researches have been developed to identify which factors are responsible for a specific behavior. Considering impossible to make a complete study of human behavior determinants, it was chosen to focus into a specific padron the homosexual behavior. Since Antiquity until nowadays, homosexual behavior determinants have been debated. Besides, this subject concerns to a large amount of people and reflects in important social issues. The present study had the purpose of analyzing which are the empiric evidences about homosexual behavior determination, through three stages: (1) historic evolution of the behavior determination, with emphasis on the methodologies applied; (2) presentation and discussion of the main research strategies about homosexual behavior determination, with emphasis on the critical analysis of data; (3) discussion of research implications and possible empirical follow-up. A bibliographic search was conducted, identifying six main research strings: hormonal measures, hormonal effects, genetic, cerebral functioning, animal models and environmental effects. Each research methodology and results were critically analyzed. Then, politics influence over research and the ethical consequences of data release were discussed; as existing data were organized into a proposal to understand the phenomena. It is expected to have contributed to a general description of the actual stage of homosexual behavior determinants as to a critical perspective over methodologies applied.
Acesso aberto (Open Access)
Análise do comportamento de crianças seus acompanhantes e auxiliares de enfermagem durante a punção venosa em sessão de quimioterapia ambulatorial
(Universidade Federal do Pará, 2007-03-29) LEMOS, Isabela Porpino; FERREIRA, Eleonora Arnaud Pereira; http://lattes.cnpq.br/6600933695027723
Acesso aberto (Open Access)
Um análogo experimental de uma prática cultural: efeitos de um produto agregado contingente, mas não contíguo, sobre uma contigência de reforçamento entrelaçada
(Universidade Federal do Pará, 2010-04) LOPES, Eduardo Barbosa; TOURINHO, Emmanuel Zagury; http://lattes.cnpq.br/5960137946576592
According to Skinner’s causal model of selection by consequences, human behavior is a product of three levels of selection: phylogeny, ontogeny and culture. Empiric investigations of the third level just recently begun in behavior analysis. In the theoretic field, Glenn introduced the concept of Metacontingency to describe functional relations between interlocked reinforcement contingencies and an aggregated outcome responsible for the selection of the interlock. In laboratory, a pioneer work by Vichi, reproduced a metacontingency using a procedure adapted from experimental studies in sociology. Vichi suggests that the interlocking behaviors of a small group of people could be modified by the aggregated outcome produced by the interlock, in this way, characterizing a metacontingency. The present work is a replication of Vichi’s study, with the objective to verify if interlocked behavioral contingencies can in fact be selected by an aggregated outcome contingent to the behaviors of people of a small group microculture. The participants were eight undergraduate students, divided into two groups of four, who accomplished a group task. The task consisted in a problem to solve by choosing a cell in a matrix composed of 8 columns and 8 rows, containing positive and negative signs. On each trial, the participants chose one row and the experimenter chose one column. A positive sign in the intersection of the chosen row and column resulted in gains for the group; a negative sign resulted in losses. The column chosen by the experimenter was contingent to the way in which the gains were distributed by the group (equally or unequally) in the immediately anterior trial. In experimental condition A, the positive sign was contingent to an equal distribution of gains, and in the experimental condition B, the positive sign was contingent to an unequal distribution of gains. Group 1 presented 43% of correct choices (the participants distributed the gains accordingly to the experimental condition imposed), and the group 2 made 19% correct choices. These results showed that procedures which use contingent consequences (win or lose in a trial) without contiguity with the interlock, make it difficult to select such interlock. However, interlocked contingencies of reinforcement were selected by its aggregated outcome under variables not controlled in the experiment. This phenomenon can be characterized as an experimental analogous of a metacontingency. The procedure, possible improvements of the procedure and the complexity of the experimental task are discussed. Emergent superstitious rule patterns of behavior are also discussed.
Acesso aberto (Open Access)
Aplicação de tentativas discretas por cuidadores para o ensino de habilidades verbais a crianças diagnosticadas com autismo
(Universidade Federal do Pará, 2015-08-25) SILVA, Álvaro Júnior Melo e; BARROS, Romariz da Silva; http://lattes.cnpq.br/7231331062174024
The cases of Autism Spectrum Disorder (ASD) are characterized by persistent deficits in communication and social interaction in multiple contexts. The diagnosis of ASD also involves the presence of repetitive behavior and restricted interests. Considering the need of intervention and the lack of qualified professionals to implement intervention the purpose of this study was to verify the effects of parent-implemented teaching programs (VI) on the performance of children (VD). Participants included three children diagnosed with autism and their respective caregivers. Through a multiple probe design, the independent variable (IV) was selectively implemented on each of the teaching programs. Caregivers carried out the intervention at home and had their performance, and the performance of their children, was evaluated in sessions conducted in the room of the APRENDE Project/UFPA. Their performance was monitored during every session. Two or more programs were selected for each child. Participant 1 reached criterion for performance accuracy in the following programs: "Tact of Actions", "Mand with Autoclitic", and "Intraverbal of Personal Informations" after 7, 13, 19 sessions, respectively. Participant 2 needed 24 to 48 sessions and the Participant 3, 5 to 38 sessions to achieve accuracy in the programs. Data show that the intervention via caregiver, guided by a behavior analyst, can be effective and appropriate to the social-economic context of Brazil, characterized by lack of governm.
Acesso aberto (Open Access)
Aplicação de um programa de ensino de leitura e construção de sentenças para crianças com autismo
(Universidade Federal do Pará, 2016-09-28) PAIXÃO, Glenda Miranda da; ASSIS, Grauben José Alves de; http://lattes.cnpq.br/0722706223558223
Autism Spectrum Disorder (ASD) is characterized by significant disturbances in communication, social interaction and other children's behavior. These disturbances may restrict the development of equivalent stimulus classes, which may hinder the development of repertoires such as reading and writing. To prevent or remedy difficulties in developing these repertoires, behavior analysis studies have applied the Constructed Response Matching to Sample (CRMTS) procedure, in which is required pairing response to the model from the selection of stimuli that compose it. Using this procedure, a series of three studies were conducted with three children diagnosed with ASD, in which were gradually taught to build words and sentences of two to five components and tested the textual reading and reading with comprehension and, as well as the construction of new sentences. The stimuli used were visual and auditory responses and the observation and selection responses got along from the touch on the computer screen. Two children showed textual reading and comprehension, in addition to the widespread construction of three and five terms sentences, showing maintenance of the repertoire after fifteen and thirty days. One child showed textual reading and comprehension, and general construction of sentences with two terms. A fourth participant was exposed to the teaching procedure, which is applied by the mother, showing textual and comprehension reading, and general construction of sentences with five terms, also demonstrating maintenance. The data indicate that there was equivalence classes and ordinal classes formation, maintaining these repertoires even after a period without exposure to tasks for children diagnosed with ASD.
Acesso aberto (Open Access)
Aquisição de repertório intraverbal via instrução baseada em equivalência em crianças com TEA
(Sociedade Brasileira de Psicologia, 2018-09) SILVA, Álvaro Júnior Melo e; KEUFFER, Sara Ingrid Cruz; OLIVEIRA, Juliana Sequeira Cesar de; BARROS, Romariz da Silva
Acesso aberto (Open Access)
Associação entre sintomas de desconforto psicológico em idosos brasileiros e fatores sócio demográficos durante a pandemia da COVID-19
(Universidade Federal do Pará, 2021-08-04) GRANHEN, Yana Wanzeller; PEDROSO, Janari da Silva; http://lattes.cnpq.br/4096274367867186; http://orcid.org/0000-0001-7602-834X; MAGALHÃES, Celina Maria Colino; http://lattes.cnpq.br/1695449937472051
The context of the global pandemic of COVID-19 emerged the vulnerability of the elderly public from the psychological consequences under the analysis of the Life Span perspective, which understands the developmental trajectory in a continuous, contextual, multidimensional, and multidirectional way concerning genetic-biological and sociocultural influences. The study aimed to investigate the association between socio-demographic factors and symptoms of psychological distress in the elderly during the pandemic context of COVID-19. The research has an exploratory nature and was carried out with a sample of 289 elderly Brazilians, aged over 60 years, recruited through the snowball technique, by virtual means (social networks and e-mail). The results obtained indicated a sample mostly female, with schooling ranging from 13 to 18 years old, Christian-Catholic religion, cohabiting with adult members, family income higher than 1,200 reais and occupation of the retirement type. The most frequent symptoms of psychological discomfort were restlessness, insomnia, muscle tension, and the urge to cry in males, family income between 900 and 1.200 reais, and house size smaller than 50 m²; on the other hand, there was no significant relation between religion, family structure, and the number of persons per family. We conclude that there was a significant association between socio-demographic and psychological factors, which indicates that the elderly focus on emotional type coping strategies, being anxiety symptoms the most prominent which suggests a perception about the loss of control about the future and physical vulnerability facing a stressful context.
Acesso aberto (Open Access)
Atenção conjunta e repertórios verbais em crianças com autismo
(Universidade Federal do Pará, 2016-03-29) SILVA, Flávia Teresa Neves; SOUZA, Carlos Barbosa Alves de; http://lattes.cnpq.br/1264063598919201
This work brought together a literature review and two experimental studies in order to investigate the relationship between joint attention (JA) and verbal repertoires in children with autism. The first study reviewed studies based on Behavior Analysis methodologies and procedures that investigated the teaching of JA for children with autism, trying to describe and analyze the variables involved in teaching joint attention responses (JAR) and initiation of joint attention (IJA). The first experimental study investigated in three children with autism functional relationships that could be established between social conditional discriminative stimuli/reinforcers and JA, tact and mand. The second experimental study evaluated in three children with autism who had joint attention the relationship between expressive and receptive vocabulary. The literature review showed that Behavior Analysis provides efficient technologies to teach JAR and IJA, but that JAR is more easily installed than the IJA. The results of empirical studies 1) indicate that the JA is important for children with autism properly establish the object-name relationship displayed by adults and thus expand and generalize these learned verbal relations; and 2) have suggested the need for expansion of reinforcing community of this population and the intensive tact instruction in order to increase the opportunities that the child will recruit adult attention as a conditioned social reinforcer.
Acesso aberto (Open Access)
Avaliação de um sistema on-line de instrução personalizado na aprendizagem conceitual e procedimental de professores da educação especial
(Universidade Federal do Pará, 2025-01-30) COSTA, Malena Russelakis Carneiro; SOUZA, Carlos Barbosa Alves de; http://lattes.cnpq.br/1264063598919201
Behavior-analytic procedures have been identified as effective for training teachers working in special education. However, most are implemented in a face-to-face and individualized manner, leading to a lower cost-benefit ratio compared to online training. This study evaluated the efficacy of a Personalized Online Instruction System (POIS) in teaching declarative knowledge about autism diagnosis, basic concepts of Behavior Analysis, and the implementation of three behavior-analytic procedures (Multiple Stimulus Without Replacement Preference Assessment, Brief Functional Analysis, and Functional Communication Training) to thirty-five special education teachers. All teachers completed the POIS modules, organized sequentially and individually, including video instruction, written material, and written and computerized feedback. Progression between modules was contingent on meeting minimum performance criteria in posttests. Nine participants underwent generalization tests to verify the practical application of procedural knowledge in simulated trials with confederates. These tests involved implementing the three learned behavior-analytic procedures, assessing the accuracy of correct responses. Results indicated that the POIS was effective in teaching declarative knowledge. However, in the generalization test, no participant met the criterion to independently implement the procedures, thus requiring additional training with feedback. This study contributes to the development of efficient and accessible teacher training methodologies, which highlights the importance of combining online instructional systems with in-person strategies to maximize learning and practical application of behavior-analytic repertoires in special education.
Acesso aberto (Open Access)
B. F. Skinner e o uso do controle aversivo: um estudo histórico-conceitual
(Universidade Federal do Pará, 2012-03-12) MARTINS, Tatiana Evandro Monteiro; MAYER, Paulo César Morales; http://lattes.cnpq.br/5360949596306254; CARVALHO NETO, Marcus Bentes de; http://lattes.cnpq.br/7613198431695463
B.F. Skinner (1904-1990) is frequently cited as having a contrary position on the use of aversive control. However, in certain passages Skinner presents a more flexible opinion about the use of this type of behavioral control. The purpose of the present study was identifying and analyzing the passages where Skinner prescribes or warns about such use. A historical-conceptual study was conducted involving eight Skinner works (Skinner 1938/1991, 1948/1975, 1953/1989, 1968/1972, 1969/1980, 1971, 1974/2006, 1989), analyzed according to the following categories: 1) the definition of aversive control and concepts involved; 2) the positive aspects of aversive control and prescribing; and 3) the negative aspects of aversive control and prohibitions. It wasn’t possible to find a specific definition of aversive control and it was observed that at certain moments Skinner justifies the use of aversive control, but does not prescribe it in general.
Acesso aberto (Open Access)
Bem estar em cativeiro: análise e planejamento da ocupação do tempo em macacos-prego (Cebus apella)
(Universidade Federal do Pará, 2009) LESSA, Miguel Angelo Monteiro; GALVÃO, Olavo de Faria; http://lattes.cnpq.br/7483948147827075
Foraging is one of the most important activities and consuming great part of the day time of neotropical primates in the natural environment. In the wild, Capuchins spend up to 80% of their time traveling and foraging in the search for food. On the other side, in captivity no effort is usually required to obtain food. Therefore the opportunity to express foraging activities becomes virtually excluded in captivity. The main objective of this work was to create and evaluate the effectiveness of an environmental enrichment tool called “bowlboard”, designed to difficult access, extending the time devoted to reach food. The observation was carried through in four different contexts, being one in the morning and three in the afternoon, using a focal animal sampling method. The relative duration of each behavioral event was compared in the absence and presence of the enrichment. It was found that the bowller extended foraging time, functioning as instrument of environmental enrichment. A considerable lowering in frequency of abnormal behaviors, while search and manipulation of food was more time consuming.
Acesso aberto (Open Access)
O conceito de incontrolabilidade na pesquisa experimental e na terapia comportamental da depressão
(Universidade Federal do Pará, 2010) FERREIRA, Darlene Cardoso; TOURINHO, Emmanuel Zagury; http://lattes.cnpq.br/5960137946576592
Behavior Analysis offers many explanations for the phenomenon called depression, one of which refers to the model of learned helplessness. Learned helplessness is defined as a learning disability which results from exposure to uncontrollable aversive stimuli. As one of the products of this exposure, there would be the acquisition of behavioral patterns common to those observed in depressed individuals, like inactivity. Because of the parallel among the effects of the experience of uncontrollability on the behavioral repertoire in humans and nonhumans, learned helplessness has been suggested as an animal model of depression. In the literature references to the uncontrollability experience are often found in association with learned helplessness, whose occurrence is strictly linked to that condition. Uncontrollability also seems relevant to the installation of responses identified with depression. In this paper, the definitions of uncontrollability reported by publications in the field of clinical and experimental behavior psychology were described discussing the relevance of this concept in functional explanations of depression in Behavior Analysis and its possible contribution to a model of clinical depression in the light of this approach. The relationship between uncontrollability and depression is treated from five analysis categories: 1) Variability of investigated phenomena, results and definitions offered; 2) Differential effects of uncontrollability in the face of aversive and appetitive stimuli; 3) Cross-sectional approaches of the relevant variables: installers x maintainers, historical x current, exclusive x superimposed on other phenomena; 4) Uncontrollability in humans: numerous assumptions, scarce empirical evidence and verbal contingencies; 5) Treatment of depression: points of contact and distance in face of empirical investigation. The different uses of the concept of uncontrollability are distinguished, indicating how the same verbal topography issued by various authors is controlled by different events. Relevant variables to the generality of learned helplessness as the experimental model and animal equivalent of depression are discussed, justifying the need for more research into aspects such as the correspondence between the concept of uncontrollability and the experimentally established condition in the laboratory, the effects of different types of uncontrollable stimulation, the production of learned helplessness in humans and involvement of verbal processes and the different effects of pre-aversive signaling of uncontrollable stimuli. It is noted that, in general, the behavioranalytic treatment of depression consists of procedures which focus on teaching that responding controls the environment and can provide reinforcements. Also, the role of uncontrollability in the installation of depression is analyzed, concluding, ultimately, that it is a sufficient, yet not necessary condition for the occurrence and/or maintenance of the phenomenon.
Acesso aberto (Open Access)
O conceito de punição na obra de B. F. Skinner: uma análise Histórico-conceitual (1930-1990)
(Universidade Federal do Pará, 2017-07-06) SANTOS, Buna Colombo dos; CARVALHO NETO, Marcus Bentes de; http://lattes.cnpq.br/7613198431695463
Two definitions of punishment are more often referred to by behavioral analysts: Skinner's definition and Azrin and Holz’s definition. These definitions represent two theories of punishment (asymmetrical and symmetrical theory). Although the symmetrical position is the most cited, this does not appear to have caused the cessation of the asymmetrical position. Thus, both theories coexist and are debated within Behavior Analysis. In this sense, some studies have examined these positions and, in relation to the asymmetrical positioning, analyze more specifically the position assumed by Skinner. These studies contributed to the understanding of Skinner's position on punishment, but left some gaps to fill: (1) They did not include documents from the entire Skinner's publication period, focusing mostly in 1953; and (2) they did not analyze the concept of punishment in relation to other key concepts and their modifications within Skinner's theory. Thus, the objective of this study was to systematically characterize the concept of punishment in B.F. Skinner's work between 1930 and 1990, emphasizing: (a) the definitions presented by the author throughout his work; and (b) the explanatory mechanisms used by Skinner to deal with punishment. Published and unpublished documents of Skinner between 1930 and 1990 were analyzed. The results, presented in three chapters, showed that there were changes in the terminology, definition and explanation of punishment in the 1930’s and that these changes were due, among other factors, to the development of the concept of reflex reserve. This concept was questioned in the early 1940’s and completely abandoned in the 1950’s. It was argued that the concept was the key to Skinner's formulation of punishment as asymmetrical to reinforcement, and although it was abandoned in the 1950’s, some of its key features survived. It was also observed that, from the 1960’s, there were no major changes in the concept of punishment. These results address the main objectives of this work.
Acesso aberto (Open Access)
Critérios utilizados na seleção de parceiras amorosas em relacionamentos de curto e longo prazo entre mulheres de orientação homossexual em idade reprodutiva
(Universidade Federal do Pará, 2011-04-11) CORRÊA, Hellen Vivianni Veloso; BRITO, Regina Célia Souza; http://lattes.cnpq.br/5576436464955236
Different criteria used for partner choice among men and women have been identified. This difference probably stems from the different degrees of parental investment of each gender. Women seem to be predisposed to select partners with characteristics of emotional and material investment, as well as good indications of health. Men, on the other hand, may use the same criteria as women, however, they give more importance to physical appearance and youth. In short and long term relationships the literature indicates that there is a difference in the choices among women. In the first case they have demonstrated to prefer characteristics related to physical health compared to the second type of relationship, in which the emphasis has been focused on partners who are good at providing resources and who have high level of emotional investment. There are few studies that investigated the criteria that homosexual women use in their partner choice. Data from studies investigating the origin of homosexuality suggested the possibility of biological influences. In evolutionary terms, homosexuality could have evolved in part as a byproduct of pleasure evolution, typical from sexual activities. If this hypothesis is correct, the potential for developing a homosexual, heterosexual or bisexual orientation can be enhanced by characteristic environments of particular individuals. This assumption may suggest that the psychological mechanisms for mate choice are similar among women of different sexual orientations. To test this hypothesis, we investigated the preferences in partner choice of 100 women in reproductive period, from 18 to 40 years, who classified themselves as “exclusive homosexual” or “homosexual, and sometimes heterosexual.” For data collection we used two instruments, one for the selection of participants and another for data collection. The instrument of data collection was divided in: 1) Demographic Data, 2) Data from partners, 3) Criteria valued in choosing a partner, 4) Criteria valued in choosing a short and long term partner, 5) Variables related to sexual performance. Participants were contacted by the method a) “snow ball”, b) in bars attended by gay groups and c) in GLBT associations. We specifically investigated the variables involved in choosing short and long term partners and compared the results with data collected by Cruz (2009) with heterosexual women in reproductive period. The results indicated that there is greater preference for physical attributes in short-term relationships among both homosexual and heterosexual women. Attributes related to bonding were more demanded in long-term relationship; possibly because 75.6% of these women have an income and do not depend on their partners to survive, reducing the need for partners who invest in material resources. Homosexual women seem to have the same standards of partner choice as heterosexual ones do.
Acesso aberto (Open Access)
Desamparo aprendido com o zebrafish (Danio rerio)
(Universidade Federal do Pará, 2014-05-23) NASCIMENTO, Gabriela Souza do; GOUVEIA JUNIOR, Amauri; http://lattes.cnpq.br/1417327467050274
Exposure to uncontrollable aversive events leads to difficulty in learning contingency relations, escape and/or avoidance. Such phenomenon was named learned helplessness and it has been correlated to depression and post-traumatic stress disorder. This thesis is composed by three studies that together have the aim of: producing learned helplessness in Danio rerio (Study I); investigating the effects of light on the escape test (Study II) and evaluating the effects imipramine have on learned helplessness when applied acutely in Danio rerio (Study III). In every experiment it was used an acrylic shutllebox (INSIGHT equipment) which contained a central area (removable) that enabled the isolation of the subjects. The general protocol consisted in two phases: 1) Treatment, each subject of the Uncontrollable shock (USH) treatment was subjected to 60 random and uncontrollable shocks (0.7 – 0.9V, lasting 30 seconds each), in this phase the subjects of the group that didn't receive treatment with electric shock (NSH) only remained in the central area for 60 minutes; and 2) Test, each subject from both groups was subjected to an escape session with 30 shocks (0.7 – 0.9V, maximum duration of 30 seconds each). In Study I, 3 groups were used, one experimental (EGUSH) and two controls, one remaining in the experimental aquarium for 60 minutes without shock (CG-NSH). In Study II, 4 groups were used, a pair from NSH and USH subjected to the light test, another pair (NSH and USH) underwent the test no light condition. In Study III 6 groups were used according to the concentration of imipramine administered during 10 minutes before the test session: 0.0 mg/l NCH; 0.0 mg/CHI; 1.0 mg/l NCH; 1.0 mg/l CHI; 2.0 mg/l NCH; e 2.0 mg/l CHI. The main results show that it is possible to create learned helplessness in Danio rerio (study I), considering light as a variable that can interfere directly in the acquisition of the phenomenon (study II), in addition, it was showed that acute imipramine in the doses administered here did not revert the learned helplessness in Danio rerio.
Acesso aberto (Open Access)
Desempenho do Guppy (Poecilia reticulata) em modelos de ansiedade: campo aberto, preferência claro-escuro e labirinto em cruz com rampa
(Universidade Federal do Pará, 2016-09-23) MONTEIRO, André Luiz Viard Walsh; GOUVEIA JUNIOR, Amauri; http://lattes.cnpq.br/1417327467050274
The use of animal models in experimental research in the last decades has shown to be more diversified than the classical model through the use of rodent or primate. This is mainly by advances in molecular, morphological and functional studies that revealed a big homology between the vertebrates. On this perspective, the Zebrafish (Danio rerio) has shown to be the non-mammal animal with biggest ascension as a study model in biological sciences in the latest decades. However, other species of fish also show to be promising as alternatives of use as animal model. This study used Guppy (Poecilia reticulata) as model for the research in behavior through different experimental approaches. In study I, guppies were exposed and re-exposed in different shifts (morning, afternoon, evening and night) in the open field test and light-dark preference. The found results show that in both tests, male and female present behavioral differences, being sensitive to re-exposure, with capacity of learning e controlling of the circadian cycle. In study II, was developed a plus-maze with ramp where it was verified the sensibility of the specie to the apparatus, the profile of response upon re-exposure and the drug effect. The results revealed sensibility to the apparatus with a height of water column at 8 cm and 5 minutes of session and differences between sex and learning by habituation along the re-expositions. The pharmacological study indicates that in this apparatus, the specie is sensitive to anxiolytic and anxiogenic drugs. Finally, we can conclude that Guppy presents similar behavior and drug responses compatible with the data described to the Zebrafish. These similarities reinforce the use of fishes as an alternative to the use of mammals in animal experimentation.
Acesso aberto (Open Access)
Desempenho na grafia e na direção grafológica em função da postura e da dominância manual em destros e canhotos em famílias de renda baixa e média
(Universidade Federal do Pará, 2007-04-17) SILVEIRA, Francisca Morais da; MARTIN, William Lee Berdel; http://lattes.cnpq.br/8591034699611752
There are three distinct theories that seek to explain the origin of the inverted hand posture (IHP) in left-handers. McKeevers genetic model assumes that the trait is sex-linked, tied to maternal transmission via the X-chromosome, which accounts for the higher prevalence of IHP among males. According to the pathological model, the IHP stems from neuropathological factors, whereas the technical adaptation theory views it as a manual adaptation for coping with abductive demands implicit in the Roman writing system. Many adherents of the latter theory regard the posture as maladaptive, leading to physical problems and illegible script; they recommend that the noninverted posture be used. A previous study was conducted among 96 lower-income adolescents, 48 left- and 48 righthanded, subdivided by sex and writing posture. This investigation extended that study by evaluating an additional 106 students from middle income families, 64 right- and 66 lefthanders. The main objectives were to ascertain whether the IHP was associated with physical problems, birth complications, different patterns of graphological direction and inferior calligraphic performance, as well as to verify whether these characteristics varied with socioeconomic status. As a whole, the findings showed no relationship between IHP, physical and pre-natal problems. On the graphological stimuli, IHP left-handers, more so than noninverters and dextrals tended to draw horizontal lines right-to left; however on other drawing tasks they did not differ from the other groups. On the cursive and printed writing task, females consistently outperformed males. Left-handers committed more errors when printing, but not when In general writing cursively. Response time was the only dependent variable related to socioeconomic status: Middle class students wrote and printed sentences faster than lower-class students. In general, these results do not support the contention that the IHP causes physical problems or inferior calligraphic performance, and thus do not justify attempts to oblige left-handers to adopt the noninverted posture.