Programa de Pós-Graduação em Neurociências e Biologia Celular - PPGNBC/ICB
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/2374
O Programa de Pós-Graduação em Neurociências e Biologia Celular (PPGNBC) é parte integrante do Instituto de Ciências Biológicas (ICB) da Universidade Federal do Pará (UFPA), sendo constituído por: Mestrado e Doutorado em Neurociências e Biologia Celular, com área de concentração em Neurociências ou Biologia Celular.
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Item Acesso aberto (Open Access) Plasticidade de modalidade cruzada em córtices sensoriais adulto(Universidade Federal do Pará, 2018-12-21) DIAS, Ivanira Amaral; BOTELHO, Eliã Pinheiro; http://lattes.cnpq.br/6276864906384922; PEREIRA JÚNIOR, Antônio; http://lattes.cnpq.br/1402289786010170; BAHIA, Carlomagno Pacheco; http://lattes.cnpq.br/0910507988777644The central nervous system (CNS) neural circuitry is highly dynamic and is continuously modified by sensory experience, in a process we call neuroplasticity, which gives the CNS the ability to adapt to changes in the sensory periphery and / or in response to environmental stimuli . This ability of the CNS remains lifelong, although it is more intense during early stages of development, especially during the critical plasticity period. The main goal of the present work was to evaluate the effects of bilateral sensory deprivation on cross modal neuroplasticity in the visual, somatosensory, and auditory primary cortices od adult rats. Animals (Rattus novergicus) (authorization CEUA/UFPA: 141-13) were divided into three experimental groups: a control group (CTL), an unimodal deprivation group (DEP), in which the animals were subjected to visual deprivation by bilateral enucleation, and a bimodal deprivation group (DDEP), whose animals were submitted to both visual and whisker deprivation bilaterallly. After 60 days of sensory deprivation, the rats were perfused and the brains were sectioned in the coronal plane for immunohistochemistry procedures aimed at revealing the activation of immediate early genes (c-Fos). The results showed that after bilateral visual deprivation the number of c-Fos+ neurons decreased in the visual cortex (** p < 0.0056), increased in the auditory cortex (** p <0.0099), and had no effect in the somatosensory cortex. Bilateral visual and whisker deprivation decreased the number of c-Fos+ neurons in the visual cortex (* p <0.0268) but did not have any effect in the somatosensory and auditory cortices.Item Acesso aberto (Open Access) O que os olhos não vêem o coração não sente: implicações para a opinião sobre a redução da maioridade penal(Universidade Federal do Pará, 2018-04-27) CALDAS, Ivete Furtado Ribeiro; PEREIRA JÚNIOR, Antônio; http://lattes.cnpq.br/1402289786010170The increase in urban violence has led society to charge the State with more severe and punitive measures to solve the problem of juvenile crime. One of the proposals is the reduction of the criminal majority from 18 to 16 years. Discussions on this proposal have been ideologically polarized and instances where the debate is based on reliable scientific evidence are rare. In this research, we try to contribute to identify the implicit social and moral constraints associated with the issue of criminal majority. For this, we designed two experiments to evaluate how socioeconomic factors, sociodemographic factors and the moral development of the individual influence the opinion on the topic. Objective: To verify the relationship between socioeconomic factors, sociodemographic factors and moral development in the opinion about the reduction of the penal majority. Materials and Methods: This is a qualitative and quantitative research with a cross-sectional design that consisted of two experiments: Belem Experiment and Regional Experiment. In the Belém Experiment the data were collected in two public places of the municipality of Belém, Pará, Praça Batista Campos and the Court of Justice of the State of Pará. In the Regional Experiment an on line tool was used with the aim of achieving people from different regions of the Brazilian territory. The sample consisted of individuals older than 18 years of both sex. The instruments used were: (1) Socioeconomic and sociodemographic questionnaire and (2) Dilemma of the adolescent in conflict with the law. Pearson's Chi-square test (χ2) and data mining were used for data analysis. Results: Juvenile court workers display preference for lower stages (stage 1) and a lower level of moral competence (average c-index) (3.97), with a strong adherence to the law, different from the general public that prefers higher stages (stage 6) and c-index (14.29). There was a significant relationship between the stage preference and the opinion of the subjects, only in the juvenile court workers (χ2 = 20,665, df = 10, p = 0.024). However, the former is less in accordance with lowering the age of criminal responsibility than the latter. Conclusion: The accuracy of opinion is greater at the extremes of psychological distance, that is, when the individual is very distant or very close to the reality of this adolescent.