999 resultados para Pupillary reflexes
Resumo:
Comparative studies of autonomic and somatic reflexes, such as cardiac defense and motor startle, are rare. However, examination of the pattern of covariation, independence, or interference among physiological reflexes may help to clarify their functional significance and elucidate their complex modulation by psychological factors. Here we report the results of a study that examined the pattern of interference of eye-blink startle on subsequent cardiac defense. Participants were 63 students (31 women) distributed into three groups according to the sensory modality of the eliciting stimulus during the startle trials: acoustic high intensity (105 dB), acoustic low intensity (65 dB), and visual modality. Startle trials consisted of 12 presentations of the eliciting stimulus with a duration of 50 ms, instantaneous risetime, and a variable inter-stimulus interval of 16 – 20 s.Defense trials began 20 s after the last startle trial and consisted, for all groups, of 3 presentations of the high intensity acoustic stimulus with a duration of 500 ms and an inter-stimulus interval of 215 s. Results showed a clear interference of the startle trials on the subsequent defense trials when both types of trials shared identical sensory modality (acoustic) independently of intensity: the expected pattern of cardiac defense in the first trial only appeared in the visual modality. Similar interference effects were observed in the skin conductance response. Subjective reactivity to the defense stimulus did not detect differences between conditions.
Resumo:
O objetivo central desta pesquisa é desvendar possibilidades no estabelecimento de prováveis eixos básicos de uma cristologia pluralista da libertação, a partir das reflexões teológicas de Jon Sobrino (1938-) e Jacques Dupuis (1923-2004). Para tanto, se reconhecem cotidianamente os entrecruzamentos de sinais dos tempos, como as diferenças religiosas e as violações de direitos e injustiças sociais. A partir desta problemática, toma-se como hipótese a necessidade de se demonstrar a articulação em andamento entre perspectivas das teologias da libertação com perspectivas das teologias cristãs do pluralismo religioso, sinalizando um novo modo de fazer teologia. O trabalho aqui desenvolvido dialoga com os estudos culturais, especialmente com os conceitos de Homi Bhabha, o referencial teórico desta pesquisa, que possibilitou, criticamente, o entrelaçamento das perspectivas de Jacques Dupuis e Jon Sobrino. Para a construção desta cristologia, seguiu-se um tripé metodológico: revisão, reconstrução e reinvenção. O trabalho buscou revisar os discursos teológicos apresentados por Jon Sobrino e Jacques Dupuis; reconstruir as reflexões teológicas elaboradas por estes autores; e reinventar uma cristologia que se mostre como um terceiro espaço, um entrelugar discursivo, uma cristologia pluralista da libertação, que não é nem o um (a cristologia da libertação) nem o outro (a teologia cristã do pluralismo religioso), mas algo a mais, uma fala híbrida elaborada a partir de determinadas zonas de contato entre os autores. A pesquisa apresenta como eixos: (i) uma cristologia integral: vivenciada nos espaços cotidianos, com uma reflexão a partir das vítimas e do espírito das testemunhas; (ii) uma cristologia trinitária: refletida a partir d@ outr@ e centrada no mistério inesgotável, na humanização do divino e na força do Espírito; e (iii) uma cristologia reinoteocêntrica: vocacionada ao reino de Deus, numa tensão entre a parcialidade com as vítimas e a universalidade da ação de Deus, numa elaboração nas vias da mística e em um discurso cristológico estruturado na (des)missão. Tais eixos possuem implicações políticas, uma vez que esta cristologia se constrói como uma dupla função: é objeto de estudo e é espaço para a atuação política, reconhecendo que novos discursos e linguagens relacionam-se com novas atuações e mobilizações sociais.
Resumo:
A pesquisa pretende tratar de um tema na produção acadêmica do teólogo alemão Jürgen Moltmann, sua eclesiologia. Ela procurará abordar as principais chaves hermenêuticas da eclesiologia moltmanniana, por entender que o autor, em sua eclesiologia, desenha uma concepção de igreja em dimensões abertas. Sendo, portanto, uma igreja que procura estar ciente do que ocorre na sociedade e dela fazer parte com um grau alto de comprometimento e inserção significativa nos grandes temas suscitados pela cultura contemporânea. Moltmann, com suas categorias teológicas, favorece o estabelecimento de bases para se pensar em uma eclesiologia com dimensões abertas, contribuindo assim para o desenvolvimento de uma práxis que seja mais condizente com o contexto em que a comunidade de fé está inserida. Para isso, considerando que as reflexões de Moltmann podem contribuir para o contexto eclesiológico brasileiro, na pesquisa optamos por fazer a comparação dos principais aspectos eclesiológicos do autor com o modo de ser batista no Brasil, a partir de autores que produzem reflexão teológica para a denominação, sendo, portanto, autores reconhecidos no universo batista. Além destas fontes bibliográficas, a pesquisa trará o pensamento teológico da Igreja Batista brasileira a partir da Declaração Doutrinária da Convenção Batista Brasileira, procurando apontar caminhos que são passíveis de reflexão teológica e contribuição pastoral críticas.
Resumo:
Previous studies have shown that a chromatic mechanism can drive pupil responses. The aim of this research was to clarify whether a linear or nonlinear chromatic mechanism drives pupillary responses by using test stimuli of various colours that are defined in cone contrast space. The pupil and accommodation responses evoked by these test stimuli were continuously and simultaneously objectively measured by photorefraction. The results with isochromatic and isoluminant stimuli showed that (lie accommodative level remained approximately constant (<0.25 D change in mean level) even when the concurrent pupillary response was large (ca. 0.30mm). The pupillary response to an isoluminant grating was sustained, delayed by ca. 60 ms) and larger in amplitude than that for a isochromatic uniform stimulus, which supports previous work suggesting that the chromatic mechanism contributes to the pupillary response. In a second experiment, selected chromatic test gratings were used and isoresponse contours in cone contrast space were obtained. The results showed that the isoresponse contour in cone contrast space is well described (r2 = 0.99) by a straight line with a positive slope. The results indicate that a [L-M] linear chromatic mechanism, whereby a signal from the long wavelength cone is subtracted from that of the middle wavelength cone and vice versa, drives pupillary responses.
Resumo:
The literature suggests that there may be pupil size and response abnormalities in migraine headache sufferers. We used an infra-red pupillometer to measure dynamic pupil responses to light in 20 migraine sufferers (during non-headache periods) and 16 non-migraine age and gender matched controls. There was a significant increase in the absolute inter-ocular difference of the latency of the pupil light response in the migraine group compared with the controls (0.062 s vs 0.025 s, p = 0.014). There was also a significant correlation between anisocoria and lateralisation of headache such that migraine sufferers with a habitual head pain side have more anisocoria (r= 0.59, p < 0.01), but this was not related to headache laterally. The pupil changes were not correlated with the interval since the last migraine headache, the severity of migraine headache or the number of migraine headaches per annum. We conclude that subtle sympathetic and parasympathetic pupil abnormalities persist in the inter-ictal phase of migraine. © 2005 The College of Optometrists.
Resumo:
The literature review reveals that the field of Work Organizational Psychology, as well as the Mental Health of Work has been developing relevant research about the suffering and the world of work. This research intended to approach the unique experience of suffering in relation of the work, from the clinical view, taking the Heidegger’s phenomenological hermeneutics perspective as a reference. Inspired by the thought of the philosopher, sought to understand the suffering in their ontic and existential dimensions, in its limiting aspects; as the one who restricts the possibilities of relationship that man with others, putting in danger significances networks woven for him to deal with things and to live with others. The world of work has been envisioned as a space of possibilities for realization of the existence. Thus, the objective of this study is to understand how the suffering is experienced in relation to work, from the experience of professionals inserted in a judicial organization. The research, with the qualitative approach, used semi-structured individual interviews, whose narratives were analyzed from the heideggerian hermeneutic perspective. Three employees collaborated into this research. The narratives showed that the suffering is related with excess and diversity of tasks carried out by the same employee, associated with lack of acknowledgment of the work executed, and also with working relationship. In general way, the suffering revealed itself as helplessness, loneliness and lack of sense to the existence. We hope that this study enables the opening towards new horizons of understanding about the meanings and sense of work and their relationship networks, as well as contributes to the field of psychology in general
Resumo:
A política habitacional teve importante avanço na década de 2000, principalmente com a criação do Ministério das Cidades. A estruturação do Plano Nacional de Habitação ocasionou inclusão do tema na agenda governamental, permitindo a produção de habitação de interesse social voltada à população em situação vulnerável, através do Programa Minha Casa Minha Vida (PMCMV). Assim, a presente dissertação tem como objetivo compreender atributos de gestão social para a organização comunitária em empreendimentos da faixa 1 do Programa. Para tanto, realizou-se pesquisa quantitativa, por meio da aplicação de formulários, e qualitativa, por meio de grupo focal, ambos com beneficiários do Programa. No tocante aos resultados, observou-se debilidade do papel do Estado, caracterizado principalmente pelos frágeis Projetos Técnicos de Trabalho Social. Os elementos de gestão social igualmente foram frágeis, distanciando os empreendimentos de condições ideias de habitabilidade e convívio coletivo. A ausência de compreensão da relevância de bem-estar coletivo e a precariedade da esfera pública, conduzem ao afastamento da finalidade emancipatória da gestão social. Destacou-se, ainda, o papel de associações de moradores e de iniciativas de trabalho coletivo no atendimento de demandas sociais da comunidade.
Resumo:
This work appears as a reflection on the oral modality of the language in the teaching of Portuguese Language from textbooks proposed for the elementary school. It has as main aim to analyze the textbooks for the Youth and Adult Education - EJA (6th and 7th grade), the collection "It is time to learn", specifically in regard to educational activities focusing on oral proposals in their constituent units. It is a process of reflection with a view to submitting suggestions arising from the discussions held, given the fact that the writing mode has been identified by some scholars, between these Marcuschi (2005), as the most privileged in the classroom and in most manuals that guide the teaching of Portuguese Language. In this work, we start from a broader vision from the principles of dialogic pedagogy by Paulo Freire perspectives towards pedagogical practices that favor the development of linguistic and discursive student skills. In this sense, we emphasize the formation of a critical subject, who can argue and defend points of view, using oral or written language, in various social situations. In this view, this paper set up aims to identify, describe and interpret the activities proposed to the oral modality of Portuguese Language, from interactional theoretical bases, based on authors as Marcuschi (2005, 2010), Fávero, Andrade and Aquino (1999) Schneuwly and Dolz (2004), Antunes (2009), among others. In addition, the objective was to suggest other educational activities, as a way of expanding the existing ones, in order that addressed more efficiently, to aspects of orality been proposed and aspects of formal oral genres. Methodologically, it is a qualitative research, in which, from the teaching materials used in the classroom, there was a reflection on the orality and the oral teaching of the Portuguese language and has been proposed an expansion of activities one oral mode. In this reflection, analysis of the results revealed that the books investigated, used in Portuguese classes in EJA, include in their proposals orality as an object and teaching axis. However, we appoint the need to expand the teaching proposals with the existing activities in order to give greater emphasis to important aspects of orality already prioritized, and also to address to the formal public genres. In seeking to make suggestions and educational proposals that integrate with existing, we postulated the most effective development for oral skills for the EJA student, in Freire's perspective, as also we thought in a way to provide subsidies which could guide teachers of the Portuguese Language area at the fundamental level of education.
Resumo:
OBJETIVO: Analizar limitaciones del estudio de fluorosis dentaria en pesquisas transversales. MÉTODOS: Se utilizaron datos de estudios de de Condiciones de Salud Bucal de la Población Brasileña (SBBrasil 2003) y de la Investigación Nacional de la Salud Bucal (SBBrasil 2010). La estimativa de tendencia epidemiológica de la fluorosis en la población de 12 años, aspectos de la confiabilidad de los datos, así como la precisión de las estimativas, fueron evaluadas en estas dos investigaciones. La distribución de la prevalencia de la fluorosis fue hecha de acuerdo con los dominios de estudio (capitales y regiones) y el año estudiado. Se expresaron también los intervalos de confianza (IC95%) para la prevalencia simple (sin considerar las fases de la gravedad). RESULTADOS: La prevalencia de la fluorosis dentaria presentó una variación considerable, de 0 a 61% en 2003 y de 0 a 59% en 2010. Se observaron inconsistencias en los datos en términos individuales (por año y por dominio) y en el comportamiento de la tendencia. Considerando la expectativa de prevalencia y los datos disponibles en las dos investigaciones, el tamaño mínimo de la muestra debería ser de 1.500 individuos para obtener intervalos de 3,4% y 6,6% de confianza, considerando un coeficiente de variación mínimo de 15%. Dada la subjetividad en la naturaleza de su clasificación, exámenes de fluorosis dentaria pueden presentar más variación de los realizados para otras condiciones de salud bucal. El poder para establecer diferencias entre los dominios del estudio con la muestra de SBBrasil 2010 es bastante limitado. CONCLUSIONES: No fue posible analizar la tendencia de la fluorosis dentaria en Brasil con base en los estudios de 2003 y 2010; esos datos son sólo indicadores exploratorios de la prevalencia de la fluorosis. La comparación se hace imposible por el hecho de haber sido utilizado modelos de análisis diferentes en las dos pesquisas. La investigación de la fluorosis dentaria en pesquisas de base poblacional no es viable técnica y económicamente, la realización de estudios epidemiológicos localizados con plan de muestreo es más adecuada.
Resumo:
We intend with this research to contribute to the contemporary debate pertinent to the history of Brazilian cinema, its historiography and its writing procedures. Thereunto, we sustain the view that the historical interpretation composed by the essays Panorama do Cinema Brasileiro: 1896/1966 (1966) and Cinema: trajetória no subdesenvolvimento (1973) arranged by the critic and historian Paulo Emilio Salles Gomes, due to their epistemological postulates and narrative strategies, constitutes a version about the history of national cinema of expressive discursive efficacy.
Resumo:
This research studies the landscape paintings of the artist Ido Finotti, specifically the Brazilian cerrado vegetation and rivers landscape paintings, in the region of Triângulo Mineiro, mainly Uberlândia and the surrounding cities as Uberaba and Araguari. The artist produced the landscape paintings from 1947 to 1980. This study searches to understand the poetic in the paintings and identify the elements that the artist chose to create the visuality of landscape to build a regional identity. Therefore, it links the artistic and historical reflections with the general ideas about the landscape painting in the Universal History of Art and in the Brazilian History of Art through the main landscape painters. First, this work shows the trajectory of the artist Ido Finotti and the two phases of his paintings: as a decorative painter of walls from 1920 to 1940, then as an oil painter artist on canvas. Second, the national and foreign authors studied were from several fields: Visual Arts, History, History of the Art, Philosophy and Geography, but had produced literature on the idea and the subject of landscape in the painting. The initial reading was about some workmanships of Ido Finotti, which included 142 landscapes paintings; interviews; articles, periodicals and magazines collected; documents, brochures and catalogues gathered. The comparison between the written and visual sources made possible the textual construction of this research.
Resumo:
O presente relatório surgiu no âmbito da prática de Ensino Supervisionada em contextos de Creche e de Jardim de Infância, do Mestrado em Educação Pré-Escolar e está dividido em duas partes. A primeira relaciona-se com a experiência vivida em Creche e a segunda diz respeito ao Jardim de Infância. Na primeira parte apresenta-se uma dimensão reflexiva, referindo as expectativas que possuía no início do estágio, as dificuldades sentidas durante o mesmo, o que é ser educador em Creche e aprendizagens realizadas. De seguida apresenta-se um ensaio investigativo concretizado, seguindo uma metodologia qualitativa, com o objetivo de compreender que interações quatro crianças estabeleciam com o ambiente na sua sala de Creche, durante o momento de brincadeira livre da manhã. Os resultados obtidos parecem mostrar múltiplas interações com o ambiente por parte das crianças. Estas exploraram ativamente o espaço da sala, interagiram com crianças demonstrando uma vontade de iniciar relações mais próximas com estas, comunicaram com adultos de várias formas e exploraram objetos descobrindo as propriedades dos mesmos e realizando jogo simbólico. A segunda parte inicia-se com uma dimensão reflexiva, refletindo acerca das expectativas, dificuldades sentidas, o desafio de ser educador expressivo, aprender com o realizado, com o observado e com as críticas e propostas educativas. Seguidamente apresenta-se o projeto “Os caracóis”, realizado segundo a Metodologia de Trabalho de Projeto que partiu do interesse e motivação das crianças, sendo estas a decidir que curiosidades queriam ver respondidas.
Resumo:
Purpose: We have reported that the changes in the pupillary shape in response to electrical stimulation of the branches of the ciliary nerves in cats. (Miyagawa et al. PLoS One, 2014). This study investigates the changes in the pupillary shapes in response to electrical stimulations of the sclera of peripheral cornea in cats and porcines. Methods: Two enucleated eyes of two cats and three enucleated porcine eyes were studied. Trains of biphasic pulses (current, 3 mA; duration, 2 ms/phase; frequency, 40 Hz) were applied using a tungsten electrode (0.3mm diameter). The stimulation was performed at every 45 degree over the entire circular region on the sclera near the cornea. The pupillary images were recorded before and 4 s (cat) and 10 s (pig) after the stimulation and the change in the pupil diameter (Δr) was quantified. The pupillary images were obtained with a custom-built compact wavefront aberrometer (Uday et al. J Cataract Refract Surg, 2013). Results: In a cat eye, the pupil was dilated by the electrical stimulation at six out of eight orientations (before stimulation pupil diameter r=10.10±0.49 mm, Δr=0.33±0.12 mm). The pupil dilated only toward the electrode (relative eccentricity of the pupil center to the pupil diameter change amount rdec=1.15±0.28). In the porcine eyes, the pupils were constricted by the electrical stimulations at the temporal and nasal orientations (r=10.04±0.57 mm, Δr=1.52±0.70 mm). The pupils contracted symmetrically (rdec=0.30±0.12). Conclusions: With electrical stimulation in the sclera of the peripheral cornea, asymmetric mydriasis in cat eyes and symmetrical miosis in porcine eyes were observed. Under the assumption that the electrical stimulation stimulated both muscles that contribute to the pupil control, our hypothesis proposed here is that the pupil dilator is stronger than the pupil sphincter in cat, and pupil sphincter is stronger than pupil dilator in porcine.
Resumo:
Neste estudo, propoem-se uma reflexao acerca do "corpo substancial" e "corpo relacional", o movimento humano e suas decorrências na Dança em Cadeira de Rodas (DCR). Compreendemos a DCR enquanto uma manifestaçao/vivência recente que carece de desvendamentos, é relevante pensar na pessoa com deficiência física e seus meios de comunicaçao e interaçao com o mundo. Acreditamos que nao convêm estudar, pesquisar e escrever sobre a Dança seguindo um método pré-definido, alicerçado em pressupostos determinados. Deste modo, consideramos pertinente utilizar-se da Pesquisa Teórica, privilegiandouma leitura teórica sobre a Dança