15 research outputs found
Attenuation of N2 amplitude of laser-evoked potentials by theta burst stimulation of primary somatosensory cortex
No full textTheta burst stimulation (TBS) is a special repetitive transcranial magnetic stimulation (rTMS) paradigm, where bursts of low-intensity stimuli are applied in the theta frequency. The aim of this study was to investigate the effect of neuronavigated TBS over primary somatosensory cortex (SI) on laser-evoked potentials (LEPs) and acute pain perception induced with Tm : YAG laser stimulation. The amplitude changes of the N1, N2, and P2 components of LEPs and related subjective pain rating scores of 12 healthy subjects were analyzed prior to and following continuous TBS (cTBS), intermittent TBS (iTBS), intermediate TBS (imTBS), and sham stimulation. Our results demonstrate that all active TBS paradigms significantly diminished the amplitude of the N2 component, when the hand contralateral to the site of TBS was laser-stimulated. Sham stimulation condition had no significant effect. The subjective pain perception also decreased during the experimental sessions, but did not differ significantly from the sham stimulation condition. The main finding of our study is that TBS over SI diminished the amplitude of the N2 component evoked from the contralateral side without any significant analgesic effects. Furthermore, imTBS produced responses similar to those observed by other forms of TBS induced excitability changes in the SI
Transcranial direct current stimulation over somatosensory cortex decreases experimentally induced acute pain perception
No full textObjective: Multiple cortical areas including the primary somatosensory cortex are known to be involved in nociception. The aim of this study was to investigate the effect of transcranial direct current stimulation (tDCS) that modulates the cortical excitability painlessly and noninvasively, over somatosensory cortex on acute pain perception induced with a Tm:YAG laser. Methods: Subjective pain rating scores and amplitude changes of the N1, N2, and P2 components of laser-evoked potentials of 10 healthy participants were analyzed before and after anodal, cathodal, and sham tDCS. Results: Our results demonstrate that cathodal tDCS significantly diminished pain perception and the amplitude of the N2 component when the contralateral hand to the side of tDCS was laser-stimulated, whereas anodal and sham stimulation conditions had no significant effect. Discussion: Our study highlights the antinociceptive effect of this technique and may contribute to the understanding of the mechanisms underlying pain relief. The pharmacologic prolongation of the excitability-diminishing after-effects would render the method applicable to different patient populations with chronic pain
Transcranial direct current stimulation over somatosensory cortex decreases experimentally induced acute pain perception
No full textObjective: Multiple cortical areas including the primary somatosensory cortex are known to be involved in nociception. The aim of this study was to investigate the effect of transcranial direct current stimulation (tDCS) that modulates the cortical excitability painlessly and noninvasively, over somatosensory cortex on acute pain perception induced with a Tm:YAG laser. Methods: Subjective pain rating scores and amplitude changes of the N1, N2, and P2 components of laser-evoked potentials of 10 healthy participants were analyzed before and after anodal, cathodal, and sham tDCS. Results: Our results demonstrate that cathodal tDCS significantly diminished pain perception and the amplitude of the N2 component when the contralateral hand to the side of tDCS was laser-stimulated, whereas anodal and sham stimulation conditions had no significant effect. Discussion: Our study highlights the antinociceptive effect of this technique and may contribute to the understanding of the mechanisms underlying pain relief. The pharmacologic prolongation of the excitability-diminishing after-effects would render the method applicable to different patient populations with chronic pain
Memória e História: Hannah Arendt em diálogo com Walter Benjamin
No full textA autora tem como proposta refletir sobre o papel da memória e da História
em nossa cultura contemporânea, através de uma aproximação ao pensamento de Hannah
Arendt e Walter Benjamin.
Abstract
The author has as purpose to reflect about the role of memory and History in
our contemporary culture, through an approximation to the thought of Hannah Arendt
and Walter Benjamin.
Palavras-chave: História. Memória. Hannah Arendt. Walter Benjamin.
Key words: History. Memory. Hannah Arendt. Walter Benjamin
The falling in love and the separation of lovers in Hannah Arendt‘s Notebook of Thought
No full textO presente artigo tem como objetivo apresentar, a partir de algumaspassagens dos Cadernos de Pensamento de Hannah Arendt, suasreflexões sobre o enamoramento e a separação dos amantes, suarelevância na vida cotidiana, seu necessário distanciamento em relação à vida pública e suas construções do eu – interior. Não se trata, todavia, de um estudo sobre a intimidade da autora, mas um estudo sobre a intimidade segundo Hannah Arendt.This article aims at presenting, from some passages taken from Hannah Arendt‘s Thoughts Notebook, her ideas about falling in love and the separation of lovers, its relevance to daily life, its necessary distancing from public life and its constructions of one‘s interior self. It is not, however, a study of the author‘s intimate life, but a study of intimate life according to Hannah Arendt
Memória e História: Hannah Arendt em diálogo com Walter Benjamin
No full textA autora tem como proposta refletir sobre o papel da memória e da História em nossa cultura contemporânea, através de uma aproximação ao pensamento de Hannah Arendt e Walter Benjamin. Abstract The author has as purpose to reflect about the role of memory and History in our contemporary culture, through an approximation to the thought of Hannah Arendt and Walter Benjamin. Palavras-chave: História. Memória. Hannah Arendt. Walter Benjamin. Key words: History. Memory. Hannah Arendt. Walter Benjamin.</jats:p
A PAIXÃO MILITANTE; OS ESCRITOS DE HANNAH ARENDT SOBRE O EU REVOLUCIONÁRIO
No full textPartindo de excertos sobre temas como “revolução”, “classe trabalhadora”, “engajamento” e “promessa”, analisados nos livros e artigos de Hannah Arendt, pretendo refletir sobre a figura do eu-revolucionário, ilustrado pela autora em diversos momentos de seu trabalho. Trata-se do feito extraordinário (ainda que aquele em pequena escala), realizado pelo homem comum, que se destaca devido a seu compromisso, resistência, oposição. O objetivo deste artigo é, a partir de algumas leituras de Hannah Arendt, discutir os sentimentos e sensibilidades que motivam o engajamento político, sua linguagem e dinâmica interna, tanto quanto a quase inevitável oscilação ente o desejo de liberdade e a disposição à obediência, o sincero amor à causa e a tendência à mentira. Starting with the excerpts on themes like working class, revolution, engagement and promise, contained in Hannah Arendt’s books and articles my purpose is to reflect on the concept of the revolutionary self, illustrated by the author in several occasions of her writings.It refers to the “extraordinary” (although small scale) accomplishment of the common man, who stands out due to his commitment, resistance, opposition.The goal of this article is to discuss, folowing some reflections of Hannah Arendt, the feelings that motivate political commitment, its language and internal dynamics, as well as the almost inevitable oscillation between the desire of freedom and the disposition to obedience, between the sincere love for the cause and the tendency to lie
Memória e História: Hannah Arendt em diálogo com Walter Benjamin
No full textThe author has as purpose to reflect about the role of memory and History in our contemporary culture, through an approximation to the thought of Hannah Arendt and Walter Benjamin.La autora tiene como propuesta reflexionar sobre el papel de la memoria y la historia en nuestra cultura contemporánea, a través de una aproximación al pensamiento de Hannah Arendt y Walter Benjamin.A autora tem como proposta refletir sobre o papel da memória e da História em nossa cultura contemporânea, através de uma aproximação ao pensamento de Hannah Arendt e Walter Benjamin
Missões e o espaço de negociação : as narrativas de Robert H. Nassau sobre a presença protestante no Gabão (1874-1914)
No full textOrientadora: Profa. Dra. Marion Dias Brepohl de MagalhãesDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Humanas, Programa de Pós-Graduação em História. Defesa : Curitiba, 29/08/2023Inclui referênciasResumo: O presente estudo consiste em uma análise das narrativas do missionário protestante estadunidense Robert Hamill Nassau, e de sua descrição das negociações culturais no cotidiano missionário no Gabão, entre 1874 e 1914. Um dos aspectos distintivos da experiência histórica de missionários protestantes, homens e mulheres cuja presença foi uma constante nos espaços coloniais dos séculos XIX e XX, foi a produção em massa de textos, os quais conectavam as suas experiências dos "campos de missão" aos públicos religiosos metropolitanos. Tendo em vista a atuação limiar da missão estadunidense em meio ao avanço colonial francês no Gabão e a extensa produção narrativa do autor em questão, busca-se adentrar à temporalidade mais densa do colonialismo a fim de destacar as diversas formas de negociação entre missionários, prosélitos, agentes coloniais e chefes gaboneses. A partir de um diálogo com a "história crítica das missões", argumenta-se que esses textos podem ser lidos como um meio privilegiado para a análise das diversas camadas de alteridade e poder que compuseram o contexto colonial gabonês, bem como as mútuas influências que marcam o contato entre seus diferentes agentes históricos. Depreende-se, a partir desse estudo, que os escritos e a trajetória de Robert H. Nassau, bem como de outros missionários protestantes, podem ser melhor compreendidos como um produto tensionado da relação entre o campo literário protestante e as relações que marcam o contato colonial.Abstract: This thesis consists of an analysis of the narratives of the American Protestant missionary Robert Hamill Nassau, and of his description of the cultural negotiations in the missionary daily life in Gabon, between 1874 and 1914. One of the distinctive aspects of the historical experience of Protestant missionaries, men and women whose presence was a constant in the colonial spaces of the 19th and 20th centuries, was the mass production of texts, which connected their experiences of the "mission fields" to the metropolitan religious audiences. Bearing in mind the marginal role of the US mission in the midst of the French colonial conquest in Gabon and the extensive literary production of the author in question, we seek to analyse everyday processes of colonialism in order to highlight the various forms of negotiation between missionaries, proselytes, colonial agents and Gabonese chiefs. Starting from a dialogue with the "critical history of missions", it is argued that these texts can be read as a privileged means for the analysis of the different layers of alterity and power that made up the Gabonese colonial context, as well as the mutual imbrication that mark the contact between its different historical agents. As this study demonstrate, it appears that the writings and trajectory of Robert H. Nassau, as well as other Protestant missionaries, can be better understood as a tensioned product of the relationship between the Protestant literary field and the intersubjectivity that marks the contact colonial
Nossos comerciais por favor! : ditadura militar e propaganda no Brasil
No full textOrientadora: Profa. Dra. Marion Brepohl de MagalhãesTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Humanas, Programa de Pós-Graduação em História. Defesa : Curitiba, 11/05/2018Inclui referências: p.246-250Resumo: O objetivo desta pesquisa é compreender de que maneira a ditadura militar se relacionou com a propaganda brasileira, seus agentes e instituições de classe. Com ênfase no período final do regime militar, ou seja, os anos da chamada "abertura, lenta, gradual e segura", nossa argumentação procurará salientar que as relações entre a propaganda brasileira e a ditadura não foram nem de condescendência e nem de resistência, mas, ambas ao mesmo tempo. Este movimento foi passível de ser observado na medida em que fizemos uso de documentação diversificada. Por um lado, discursos de presidentes de agências e instituições de classe (como a ABA e o CNP) e as campanhas institucionais ajudaram, por outro, a análise das campanhas produzidas pelas agências. Os momentos de aproximação demonstraram ser além das perspectivas econômicas, mas também abarcaram uma afinidade ideológica que se manteve constante até 1979, ano que consideramos aqui como marco do rompimento. Do ponto de vista da propaganda, a aproximação com o "projeto de comunicação" da agência oficial (AERP/ARP), deu-se em dois momentos. O primeiro deles, cuja característica é o nacionalismo exacerbado dos anos do "milagre econômico" brasileiro e, após o esgotamento da AERP/ARP, a partir de 1975, quando a propaganda parece ter absorvido o conteúdo do projeto e aproximado suas produções dos ideais do governo. O afastamento pode ser percebido na transformação do ufanismo dos anos 1970 num nacionalismo romântico ou discreto para, após os anos 1980, um rompimento completo, ou seja, o abandono das temáticas nacionalistas e o foco nos valores individuais e na exaltação dos prazeres do indivíduo. No que diz respeito a ditadura, nosso objetivo foi compreender de que maneira a propaganda brasileira, direta e/ou indiretamente, ajudou a compor, enquanto parcela comprometida com o governo, um conjunto de mensagens que, de alguma maneira, procuravam manter/instigar algum tipo de sentimento positivo, otimismo ou euforia. Como suporte teórico, lastreamos nossa pesquisa nas diversas reflexões de Pierre Ansart a respeito dos regimes políticos e dos regimes das emoções, ou naquilo que o autor chama de "gestão das paixões políticas", para compreender como tais sentimentos puderem ser manipulados tanto por àqueles que ocupavam o Estado, como aqueles que giravam em sua órbita. Palavras - Chave: Ditadura Militar; propaganda; propaganda políticaAbstract: This research aims to understand how the military dictatorship related to Brazilian advertisement, its agents and class institutions. Emphasizing on the final period of the military regime, the years of the so-called "open, slow, gradual and safe," our argument seeks to highlight that the relations between Brazilian advertising and the dictatorship were neither condescension nor resistance, but both at the same time. This movement could be observed as we made use of diversified documentation. On one hand, speeches by presidents of agencies and class institutions (such as ABA and CNP) and institutional campaigns helped; on the other hand, the analysis of the campaigns produced by the agencies. The moments of approximation proved to be beyond economic perspectives, but also embraced an ideological affinity that remained constant until 1979, a year that is considered as a breakthrough. From the point of view of advertising, the approach to the "communication project" of the official agency (AERP / ARP) took place in two moments. The first one, whose characteristic is the exacerbated nationalism of the years of the Brazilian "economic miracle", and after the exhaustion of the AERP / ARP, from 1975, when advertising seems to have absorbed the content of the project and brought its productions closer to the ideals of the government. The separation can be perceived in the transformation of the 1970s patriotism into a romantic or discrete nationalism, after the 1980s a complete breakthrough, that is, the abandonment of nationalist themes and the focus on individual values and the exaltation of the pleasures of the individual. With regard to dictatorship, our goal was to understand how Brazilian advertising, directly and / or indirectly, helped to compose, as a committed part of the government, a set of messages that somehow sought to maintain / instigate some kind of positive feeling, optimism or euphoria. As a theoretical support, we base our research on Pierre Ansart's various reflections on political regimes and regimes of emotions, or on what the author calls "management of political passions," to understand how such feelings can be manipulated by both those who they occupied the state, like those that revolved in its orbit. Key words: Military dictatorship, advertisement, political advertisement
