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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
181

Attention Modification to Attenuate Facial Emotion Recognition Deficits in Children with ASD

Wieckowski, Andrea Trubanova 04 February 2019 (has links)
Prior studies have identified diminished attending to faces, and in particular the eye region, in individuals with Autism Spectrum Disorder (ASD), which may contribute to the impairments they experience with emotion recognition and expression. The current study evaluated the acceptability, feasibility, and preliminary effectiveness of an attention modification intervention designed to attenuate deficits in facial emotion recognition and expression in children with ASD. During the 10-session experimental treatment, children watched videos of people expressing different emotions with the facial features highlighted to guide children's attention. Eight children with ASD completed the treatment, of nine who began. On average, the children and their parents rated the treatment to be acceptable and helpful. Although treatment efficacy, in terms of improved facial emotion recognition (FER), was not apparent on task-based measures, children and their parents reported slight improvements and most parents indicated decreased socioemotional problems following treatment. Results of this preliminary trial suggest that further clinical research on visual attention retraining for ASD, within an experimental therapeutic program, may be promising. / PHD / Previous studies have shown that individuals with Autism Spectrum Disorder (ASD) show lower looking at faces, especially the eyes, which may lead to the difficulties they show with ability to recognize other’s emotions and express their own emotions. This study looked at a new treatment designed to decrease the difficulties in emotion recognition and expression in children with ASD. The study looked at whether the treatment is possible, acceptable to children and their parents, and successful in decreasing the difficulty with emotion recognition. During the 10-session treatment, children watched videos of people making different expressions. The faces of the actors in the videos were highlighted to show the children the important area to look at. Eight children with ASD completed the treatment, of nine who started the treatment. On average, the children and their parents said that the treatment is acceptable and helpful. While the treatment was not successful in improving ability to recognize emotions on other’s faces on several tasks, children and their parents reported slight improvements. In addition, most parents reported less problems with social skills and emotion recognition and expression after the treatment. These results suggest that more clinical research may be needed to evaluate usefulness of such attention retraining for children with ASD.
182

A day in the life of a Farm-fluencer: can Agriculturalists change public perceptions towards Agriculture by using social media

Webb, Josey M. 10 May 2024 (has links) (PDF)
As generations have moved away from the farm, the population has become less aware of the practices behind the agriculture industry. However, people are becoming interested in how their food is produced. Since most of the population has not received an agriculture education, they look towards social media as their source of information. Social media has become a platform for sharing opinions and knowledge on certain topics. It has also been studied the perceptions of others can be influenced by emotionalizing and repeating stories related to the topic. Farmers and ranchers are now sharing their knowledge and experiences regarding agriculture through the convenience of social media. This leaves the question can a farmer’s use of social media influence a change in the public opinion of agriculture to a positive one. Therefore, this study focuses on the potential influence and impact farm-fluencers have on public perceptions of agriculture, through using social media.
183

Resposta não declarada: contribuições do eye tracker e da resposta de condutância de pele para a pesquisa em publicidade. / Unreported response: contributions from the eye tracker and skin conductance response to advertising research

Kawano, Diogo Rogora 28 June 2019 (has links)
Profundas transformações têm impactado não somente os processos interacionais e comunicacionais como, também, a forma de se fazer pesquisa em comunicação. Tal busca por um maior entendimento passa pela dinâmica científica e seus métodos no campo da comunicação. O avanço das metodologias mais ligadas à neurociência e suas aplicações em outras áreas do conhecimento, incluindo a comunicação, fez emergir um crescente interesse por pesquisadores do campo. Entretanto, a contribuição efetiva de tais metodologias, como a aferição no nível condutância de pele e o rastreamento ocular (eye tracking) ainda não é devidamente clara. A presente pesquisa tem como objetivo aprofundar o diálogo interdisciplinar entre os campos da comunicação e neurociência, no que se refere ao emprego combinado das metodologias do eye tracking e de condutância de pele, a fim de se identificar possíveis contribuições e limitações dos métodos para a comunicação. Para tanto, foi conduzido um experimento com 46 universitários homens e mulheres, que tiveram seus dados de rastreamento ocular e nível de condutância de pele aferidos enquanto observavam um dos três tipos de abordagem (frame) em campanhas de segurança no trânsito (neutra, positiva e negativa). Os dados foram, então, analisados de forma quantitativa e qualitativa, e comparados com avaliações atitudinais autodeclaradas pelos participantes. Como principais resultados, houve diferenças entre três as abordagens consoante a forma e métrica de avaliação, sugerindo que a escolha por determinada forma de análise exerce um considerável efeito sobre os resultados. As considerações finais indicam que, apesar de apresentarem limitações, o eye tracking e a condutância de pele constituem métodos importantes e complementares às formas tradicionais de pesquisa em comunicação, ao conferirem uma maior objetividade e comparabilidade de informações relativas a aspectos atencionais e emocionais de conteúdos comunicacionais persuasivos. / Deep transformations have impacted not only on interactional and communication processes but also on the way of conducting research in communication. This search for a greater understanding goes through the scientific dynamics and its methods in the field of communication. The advancement of methodologies closely related to neuroscience and its applications in other areas of knowledge including applied social sciences - communication, has given rise to a growing interest by researchers in the field. However, the effective contribution of such methodologies, e.g. the measurement of the level of skin conductance and eye tracking, is not yet properly clear. The present research aims at deepening the interdisciplinary dialogue between the fields of communication and neuroscience regarding the combined use of the methodologies of eye tracking and skin conductance to identify possible contributions and limitations of methods for communication. In order to do so, an experiment was conducted with 46 male and female university students, who had their eye tracking data and skin conductance level collected while observing one of the three types of approach in traffic safety campaigns (neutral, positive and negative). The data were then analyzed in a quantitative and qualitative manner and compared with self-reported attitudinal answers by the participants. As the main results, there were differences between three approaches depending on the form and metric of evaluation, suggesting that the choice for a particular form of analysis exerts a considerable effect on the results. The final considerations indicate that despite limitations eye tracking and skin conductance are important and complementary methods to traditional forms of communication research, by providing greater objectivity and comparability of information regarding the attentional and emotional aspects of persuasive communication contents.
184

Brain-electric correlates of visual word recognition under natural reading conditions

Niefind, Florian 06 May 2016 (has links)
Diese vorliegende Dissertation nutzt Koregistrierung von EEG und Eye-Tracking um neuronale Korrelate der Wortverarbeitung beim natürlichen Lesen zu untersuchen. EKP-Forschung hat unser Verständnis der Wortverarbeitung stark geprägt. Jedoch wird Lesen in EKP-Experimenten üblicherweise im unnatürlichen RSVP Paradigma untersucht. Der Blickbewegungsforschung verdanken wir viele Erkenntnisse über die Koordination von Sprachverarbeitung und Blickbewegungsplanung, allerdings nur auf der Verhaltensebene. Drei Leseexperimente in dieser Arbeit untersuchten a) foveale und parafoveale Wortverarbeitung, b) Wortschwierigkeit in Form von Wortfrequenzeffekten und c) den Einfluss von Blickbewegungen. Ein viertes Experiment untersuchte die Generalisierbarkeit parafovealer Vorverarbeitungs-Effekte (Preview-Effekte), indem diese mit chinesischen Sätzen repliziert wurden. Die Ergebnisse zeigten einen reliablen Effekt parafovealer Vorverarbeitung auf neuronale Korrelate der fovealen Worterkennung in Form eines frühen Effekts auf der N1 Komponente. Interaktionen zwischen dem Preview-Effekt und Wortfrequenz zeigten Wechselwirkungen der Verarbeitung aufeinanderfolgender Worte im fovealen und parafovealen Blickfeld. Preview-Effekte waren schwächer nach Worten mit niedriger Frequenz, was zeigt, wie komplexe foveale Wortverarbeitung Resourcen für parafoveale Information bindet. Andererseits beeinflusste parafoveale Verarbeitung auch die foveale Verarbeitung: Erstens durch den oben beschriebenen Preview-Effekt, zweitens durch eine Verlangsamung der Wortverarbeitungsrate nach schweren Vorschaubedingungen. Außerdem zeigten sich foveale Wortfrequenzeffekte früher nach valider parafovealer Wortvorschau. Der Preview-Effekt war stärker, wenn Blickbewegungen ausgeführt werden mussten. Der Grund hierfür sind verdeckte Aufmerksamkeitsverschiebungen vor einer Sakkade. (EKP-)Forschung zur visuellen Wortverarbeitung sollte zukünftig Blickbewegungen und parafoveale Vorverarbeitung berücksichtigen. / The current dissertation uses co-registration of EEG with eye tracking to study the brain-electric correlates of word processing under natural reading circumstances. ERP research has advanced our understanding of the neuronal mechanisms of word processing greatly but traditionally used the RSVP paradigm that is not ecologically valid. Eye tracking research has greatly advanced our understanding of the coordination of linguistic processing with eye movement execution but provides only indirect insight into the actual brain processes during reading. Three reading experiments were conducted to study a) foveal and parafoveal processing, b) word processing in the form of frequency effects, and c) the impact of eye movement planning and execution on a neuronal as well as behavioral level. A fourth experiment tested the generalizability of the preview effects by replicating preview effects in Chinese sentence reading. Results show a robust effect of parafoveal preview on brain-electric correlates of foveal word recognition in the form of an early effect on the N1 component. The preview effect interacted with word frequency in different ways, revealing interactions between the processing of subsequent words in parafoveal and foveal vision. Preview effects were smaller after low frequency words, showing that parafoveal processing is reduced if foveal processing is complex. Also, parafoveal processing also affected foveal processing: Firstly, by providing preview benefit as described above and secondly, by slowing processing rates after a difficult preview (delayed POF effects). Lastly, foveal word frequency effects were found earlier if valid parafoveal preview had been provided. Preview effects were much stronger if eye movements had to be executed, which is most likely due to pre-saccadic attention shifts. Results show the shortcomings of traditional ERP studies and suggest that research on visual word recognition needs to consider eye movements and parafoveal processing.
185

Comunicação digital da Marca Brasil: uma avaliação da experiência de navegação de usuários estrangeiros no portal Visit Brasil / Digital Communication of the Brazil Brand: an evaluation of foreign users\' navigation experience on the Visit Brasil website

Kanazawa, Flávio Notomi 04 November 2016 (has links)
A popularização mundial da internet facilita para seus usuários o compartilhamento de informações, opiniões e experiências sobre diversas questões, como seus interesses, produtos, serviços e locais que visitaram ou que pretendem visitar. Nesse contexto, abre-se espaço para que as organizações também participem desse processo, de modo a conhecer melhor seus públicos e desenvolver ações para influenciar positivamente suas decisões; esse conjunto de práticas forma a chamada comunicação digital. Dentro da competição internacional para atrair investimentos, turistas, imigrantes e estimular exportações, muitos países passaram a adotar estratégias e práticas de criação e gestão de marcas a fim de melhorar suas imagens para obter melhores resultados nessa competição (inclusive o Brasil, através da Marca Brasil) e, com isso, a comunicação digital surge como um importante aliado. Entretanto, observa-se uma escassez de pesquisas que abordem a interdisciplinaridade desses assuntos. Assim, o objetivo geral desta pesquisa é avaliar a experiência de navegação de usuários estrangeiros nos conteúdos de comunicação digital no portal Visit Brasil. A pesquisa foi definida como qualitativa exploratória e, num primeiro momento, realizou entrevistas em profundidade com os profissionais envolvidos na criação e gerenciamento de tais práticas no caso brasileiro. Num segundo momento, foram entrevistados usuários estrangeiros dos conteúdos gerados para a Marca Brasil, contando também com as informações complementares obtidas pelo uso de um equipamento de eye tracking. Os dados qualitativos levantados serviram de base para uma análise de conteúdo. Os resultados obtidos fomentam a conclusão de que o portal Visit Brasil atinge seu objetivo de atrair potenciais turistas estrangeiros a visitar o país, mas falha em seu outro propósito de suprir as necessidades de informações turísticas desses indivíduos. Além disso, conclui-se que o portal não é capaz de influenciar mudanças na imagem do Rio de Janeiro como um destino turístico. Este estudo traz contribuições ao desenvolvimento de novos trabalhos sobre o assunto, além de fornecer aos profissionais envolvidos, e potencialmente às empresas do setor brasileiro de turismo, uma melhor compreensão e o descobrimento de novas oportunidades a respeito das práticas de comunicação digital desenvolvidas em prol da Marca Brasil e de seus resultados até o momento. / The worldwide popularization of the internet makes easier for its users to share information, opinions and experiences about several subjects, like their interests, products, services and places they\'ve been to or intend to go in the future. In this context, companies have the opportunity to also take part into this process, being able to know better their audiences and developing actions to positively influence their decisions, putting into practice digital marketing activities. As the international competition to attract investments, tourists, immigrants and stimulate exports continues to grow, many countries now adopt branding strategies and practices trying to improve their own images to get better results into this competition (including Brazil, through the Brazil Brand), and digital marketing is now an important ally for that attempt. However, studies that approach the interdisciplinarity of those subjects are scarce. Therefore, this study was developed to evaluate the experience of foreign users towards the digital marketing contents developed to the Brazil Brand through the website Visit Brasil. First, through a qualitative approach, in depth interviews were developed with professionals involved on the creation and management of those practices. After that, foreign users of the Brazil Brand online materials interacted with those contents, and these interactions were recorded and analyzed with an eye tracking equipment. In depth interviews also were conducted. All the collected data were analyzed through a content analysis. The results supports the conclusion that the website succeeds to attract potential foreign tourists to visit Brasil, but fails to supply all tourist\'s information needs. Also, it is possible to conclude that the website is incapable of influencing changes about the image of Rio de Janeiro as a tourist destination. This study contributes to the development of new researches on this field, and also will provide to the involved professionals and tourism companies, better comprehensions and new opportunities related to digital marketing practices developed to the Brazil Brand and its results so far.
186

Blickbewegungsmessung als Prozessmaß bei gedächtnisbasierten Multi-Attribut-Entscheidungen / Tracking memory search for process tracing in multi-attribute decision making

Scholz, Agnes 22 June 2011 (has links) (PDF)
Die Informationssuche und –integration konnten bei gedächtnisbasierten Multi-Attribut-Entscheidungen bislang nicht untersucht werden. Die vorliegende Arbeit beschäftigt sich mit der Entwicklung eines neuen prozessbasierten Verfahrens, das auf einer Analyse von Blickbewegungen beruht. Das Verfahren wurde in einer experimentellen Untersuchung erprobt. In einer vorangestellten Lernphase eigneten sich die Versuchsteilnehmer Eigenschaftsausprägungen (Cue-Ausprägungen) von sechs verschiedenen Alternativen an. Die Eigenschaftsausprägungen waren in Textform in rechteckigen Kästen um eine bildliche Darstellung einer Alternative angeordnet. In der darauf folgenden Entscheidungsphase führten die Teilnehmer gedächtnisbasierte Entscheidungen zwischen jeweils zwei der Alternativen durch. Die eine Hälfte der Versuchsteilnehmer bekam die nichtkompensatorische Take the best (TTB) Heuristik instruiert, die andere Hälfte die kompensatorische Dawes Rule (DR). Während der Entscheidungsphase wurden die Blickbewegungen der Versuchsteilnehmer aufgezeichnet. Es wurde angenommen, dass sich die Blickbewegungen zwischen den zwei Gruppen instruierter und nach ihrem Entscheidungsverhalten klassifizierter Versuchsteilnehmer hinsichtlich der strategieinduzierten Suchmuster unterscheiden würden. Diese Annahme beruht auf Befunden, die zeigen, dass Versuchsteilnehmer beim Informationsabruf an die Orte zurückblicken, an denen sie zuvor Informationen aufgenommen haben, selbst wenn diese Informationen dort nicht mehr stehen. Verwender der TTB Heuristik zeigten mehr Blickwechsel zwischen den Alternativen, je später der erste Cue differenzierte, und sie verweilten kürzer in einer Alternative, bevor sie den Blick auf die andere Alternative richteten. Bei DR Verwendern fanden sich erwartungsgemäß keine Unterschiede in den Blickwechselhäufigkeiten, je später der erste Cue differenzierte, und sie verweilten länger innerhalb einer Alternative vor einem Blickwechsel. Die Ergebnisse stützen die Idee, dass Blickbewegungen wertvolle Informationen über die kognitiven Prozesse während der Gedächtnissuche liefern können. Das Potenzial der Blickbewegungsmessung als Prozessmaß zur Untersuchung gedächtnisbasierter Entscheidungen wird diskutiert. / The common methods for studying heuristics in memory-based multi-attribute decisions provide outcome and response measures but do not directly observe information search. Hence, foregoing cognitive processes cannot be explored. In the presented experiment a novel process-tracing method is introduced that uses eye-tracking to study memory-based decisions. It is based on the so-called ‘looking at nothing’ effect that assumes that people fixate on blank locations if a relevant visual stimulus previously occupied that location. Therefore, participants learned cue information of decision alternatives in spatial frames. In the decision phase they were presented with emptied displays of two alternatives and performed binary choices between them. Participants were instructed to decide either according to a lexicographic or a compensatory strategy. Fixation patterns on former cue locations and reaction times mirrored memory search and cue processing as assumed for the tested strategies.
187

Bases neuronales et cognitives du traitement de la hiérarchie sociale chez l'humain / -

Breton, Audrey 18 December 2015 (has links)
Ma thèse porte sur une dimension fondamentale de la structure des groupes sociaux : la hiérarchie. Chez l'être humain, les hiérarchies sociales régissent en profondeur les interactions. Pour naviguer avec succès dans son environnement, il doit être en mesure de repérer précisément les positions hiérarchiques des autres membres de son groupe. Ce travail de thèse vise à caractériser certains mécanismes neuronaux, comportementaux et physiologiques impliqués dans l'analyse d'un indice hiérarchique. Pour préciser la nature du traitement de la hiérarchie, j'ai exploré son influence sur différentes étapes de la perception des visages. Je me suis tout d'abord intéressée au décours temporel du traitement neuronal des visages dans un contexte hiérarchique. Deux études menées en électroencéphalographie m'ont permis d'identifier les potentiels neuronaux et les composants oscillatoires évoqués par la perception de visages associés soit, à un rang hiérarchique établi à l'issue d'une compétition, soit à un statut social induit par la profession. Une étude réalisée ensuite en oculométrie avait pour but de capturer l'influence de la hiérarchie sur des mécanismes fins du contrôle de l'attention visuelle. J'ai étudié à la fois l'exploration visuelle de classements hiérarchiques incluant le participant, et celle de visages associés à des rangs hiérarchiques différents. Enfin, j'ai tenté de déterminer si un signal ou une situation d'asymétrie hiérarchique véhicule une valence émotionnelle et motivationnelle non neutre susceptible d'induire des variations de certains paramètres physiologiques, comme le rythme cardiaque ou la réponse électrodermale / Hierarchy is a key organizational feature of social groups. In order to successfully navigate their social environment, humans must precisely read the hierarchical position of other during social interaction. This present thesis intends to characterize the neural correlates as well as the early physiological and behavioral mechanisms involved in the processing of social rank. The influence of hierarchy was mainly investigated in the context of face perception. To begin, my focus was on the time course of neuronal processing of faces embedded in a hierarchical context. Using eletroencephalography in two studies, it has been possible to identify evoked neuronal potentials and oscillatory components in response to faces varying in hierarchical rank, established through competition or social status induced by profession. The next study used eye-tracking methodology to explore the influence of hierarchy on the subtle mechanisms of visual attention control. I aimed at characterizing the visual scanning pattern of hierarchical rankings (during a competition) and of faces associated with different hierarchical ranks. Finally, I tried to determine if a hierarchical signal or a social asymmetrical situation conveyed an emotional/motivational valence. During face perception and a minimal social interaction, I examined if this particular dimension of hierarchy generated variations of physiological activity, such as heart rate and skin conductance response
188

Comunicação digital da Marca Brasil: uma avaliação da experiência de navegação de usuários estrangeiros no portal Visit Brasil / Digital Communication of the Brazil Brand: an evaluation of foreign users\' navigation experience on the Visit Brasil website

Flávio Notomi Kanazawa 04 November 2016 (has links)
A popularização mundial da internet facilita para seus usuários o compartilhamento de informações, opiniões e experiências sobre diversas questões, como seus interesses, produtos, serviços e locais que visitaram ou que pretendem visitar. Nesse contexto, abre-se espaço para que as organizações também participem desse processo, de modo a conhecer melhor seus públicos e desenvolver ações para influenciar positivamente suas decisões; esse conjunto de práticas forma a chamada comunicação digital. Dentro da competição internacional para atrair investimentos, turistas, imigrantes e estimular exportações, muitos países passaram a adotar estratégias e práticas de criação e gestão de marcas a fim de melhorar suas imagens para obter melhores resultados nessa competição (inclusive o Brasil, através da Marca Brasil) e, com isso, a comunicação digital surge como um importante aliado. Entretanto, observa-se uma escassez de pesquisas que abordem a interdisciplinaridade desses assuntos. Assim, o objetivo geral desta pesquisa é avaliar a experiência de navegação de usuários estrangeiros nos conteúdos de comunicação digital no portal Visit Brasil. A pesquisa foi definida como qualitativa exploratória e, num primeiro momento, realizou entrevistas em profundidade com os profissionais envolvidos na criação e gerenciamento de tais práticas no caso brasileiro. Num segundo momento, foram entrevistados usuários estrangeiros dos conteúdos gerados para a Marca Brasil, contando também com as informações complementares obtidas pelo uso de um equipamento de eye tracking. Os dados qualitativos levantados serviram de base para uma análise de conteúdo. Os resultados obtidos fomentam a conclusão de que o portal Visit Brasil atinge seu objetivo de atrair potenciais turistas estrangeiros a visitar o país, mas falha em seu outro propósito de suprir as necessidades de informações turísticas desses indivíduos. Além disso, conclui-se que o portal não é capaz de influenciar mudanças na imagem do Rio de Janeiro como um destino turístico. Este estudo traz contribuições ao desenvolvimento de novos trabalhos sobre o assunto, além de fornecer aos profissionais envolvidos, e potencialmente às empresas do setor brasileiro de turismo, uma melhor compreensão e o descobrimento de novas oportunidades a respeito das práticas de comunicação digital desenvolvidas em prol da Marca Brasil e de seus resultados até o momento. / The worldwide popularization of the internet makes easier for its users to share information, opinions and experiences about several subjects, like their interests, products, services and places they\'ve been to or intend to go in the future. In this context, companies have the opportunity to also take part into this process, being able to know better their audiences and developing actions to positively influence their decisions, putting into practice digital marketing activities. As the international competition to attract investments, tourists, immigrants and stimulate exports continues to grow, many countries now adopt branding strategies and practices trying to improve their own images to get better results into this competition (including Brazil, through the Brazil Brand), and digital marketing is now an important ally for that attempt. However, studies that approach the interdisciplinarity of those subjects are scarce. Therefore, this study was developed to evaluate the experience of foreign users towards the digital marketing contents developed to the Brazil Brand through the website Visit Brasil. First, through a qualitative approach, in depth interviews were developed with professionals involved on the creation and management of those practices. After that, foreign users of the Brazil Brand online materials interacted with those contents, and these interactions were recorded and analyzed with an eye tracking equipment. In depth interviews also were conducted. All the collected data were analyzed through a content analysis. The results supports the conclusion that the website succeeds to attract potential foreign tourists to visit Brasil, but fails to supply all tourist\'s information needs. Also, it is possible to conclude that the website is incapable of influencing changes about the image of Rio de Janeiro as a tourist destination. This study contributes to the development of new researches on this field, and also will provide to the involved professionals and tourism companies, better comprehensions and new opportunities related to digital marketing practices developed to the Brazil Brand and its results so far.
189

Apports des sciences cognitives et de la neuroimagerie fonctionnelle à la communication anti-tabac : cas des avertissements graphiques apposés sur les paquets de cigarettes / Understanding the impact of anti-tobacco advertisement with cognitive science and fMRI : the case of graphic warnings on cigarette packs

Soriano, Alice 23 January 2017 (has links)
La lutte contre le tabagisme représente un enjeu de santé publique majeur. En France, seules des méthodes déclaratives (questionnaires, entretiens) sont utilisées à ce jour pour étudier l'impact des messages de prévention sur la population. Les neurosciences et les sciences cognitives peuvent pourtant apporter de précieuses informations pour la compréhension des processus attentionnels, émotionnels et mnésiques mis en jeu lorsqu'un individu fumeur est exposé à une campagne de prévention anti-tabac. Depuis 2011, en France, des avertissements sanitaires anti-tabac combinés (comportant une photo et un texte) sont apposés sur tous les paquets de cigarettes. Ces avertissements qualifiés de « chocs » par les médias, peuvent évoquer de la peur ou du dégout chez les individus car certains d'entre eux représentent des pathologies graves dues au tabagisme. L'objectif de ce projet de recherche était d'utiliser les outils des sciences cognitives et des neurosciences afin d'observer le traitement cognitif des avertissements sanitaires combinés actuellement apposés sur les paquets de cigarettes en France. Une première étude a permis d'observer quelles émotions étaient évoquées par les avertissements et si ces émotions impactaient l'attention portée aux avertissements et leur mémorisation chez des fumeurs et des non-fumeurs. Dans un second temps de notre projet, nous avons donc observé grâce à la méthodologie de l'Imagerie par Résonance Magnétique fonctionnelle, si l'exposition à des avertissements sanitaires combinés modulait l'activité cérébrale évoquée chez les fumeurs lors de l'exposition à des stimuli liés au tabac. / Fighting tobacco represents one of the biggest global health challenges for public policymakers. In France, cognitive (neuro)sciences are not used to develop and test anti-tobacco strategies prior to scaling them. However they could provide valuable insights in the understanding of attentional, emotional and memorization processes at play when a person is exposed to strategies aiming at fighting tobacco consumption. Since 2011, France has been using the set of graphic warnings provided by the European Commission in combination to text warning on cigarette packets. In a series of experimental studies, funded by the Ligue Nationale Contre Le Cancer, we used methodology from cognitive sciences (eye-tracking) and functional neuroimaging (fMRI) to investigate processes involved when smokers and non-smokers are exposed to such tobacco warnings. Tobacco warnings used in France may induce disgust or fear because some of them depict body damages caused by tobacco related diseases. In a first study, we observed the relationship between the nature of basic emotions evoked by those warnings in smokers and non smokers and the attentional and memorization processes. In a second study, we tested whether being exposed to tobacco warnings modulates the specific brain activity observed in fMRI when smokers are exposed to tobacco related images, a mechanism involved in “smoking cue reactivity”.
190

The Processing of Non-nominal Metaphors

Rodríguez Ronderos, Camilo 05 March 2021 (has links)
Zwei Theorien über die Verarbeitung von Metaphern postulieren die Beteiligung unterschiedlicher kognitiven. Die erste, die „Implicit Comparison View“, behauptet, dass Metaphern durch einen Prozess des analogen Denkens verstanden werden (z. B. Gentner et al., 2001; Gentner & Bowdle, 2008). Eine zweite Ansicht, die „Category Inclusion View“, sieht das Verstehen einer Metapher als einen Prozess, bei dem die lexikalische Bedeutung des metaphorischen Vehikels spontan moduliert wird, um eine ad-hoc, zielorientierte Kategorie zu schaffen (z. B. Glücksberg, 2008; Sperber & Wilson, 2008). Obwohl es eine große Anzahl an Experiment gibt, die die Vorhersagen dieser beiden Theorien testen (z. B. Bowdle & Gentner, 2005; Gernsbacher et al., 2001; Jones & Estes, 2005; Jones & Estes, 2006; McGlone & Manfredi, 2001; Wolff & Gentner, 2011) ist es bis jetzt nicht möglich gewesen, das Problem der Metaphernverarbeitung zu lösen zugunsten einer der beiden Theorien. Diese Dissertation versucht genau das zu tun, indem die Verarbeitung von zwei Arten deutscher nicht-nominaler Metaphern untersucht werden: verbale Metaphern und Verb-Objekt-Metaphern. Dies wurde gemacht durch eine Untersuchung der Rolle des Kontexts während der Verarbeitung von nicht-nominalen Metaphern. Dabei wurde auf die Literatur zur situierten und inkrementellen Sprachverarbeitung zurückgegriffen (siehe Huettig et al., 2011; Huettig et al., 2012; Kamide, 2008; Knoeferle & Guerra, 2016). Insgesamt die Ergebnisse von 14 verschiedenen Experimeten als besser zu vereinbaren mit der „Category Inclusion View“ als mit der „Implicit Comparison View“. / Two main sets of theories of metaphor comprehension posit the involvement of different cognitive mechanisms. The first one, the Implicit Comparison View, claims that metaphors are understood through a process of analogical reasoning in which the elements of a metaphoric expression (in the example above my cat, which is known as the ‘topic’ and princess, which is known as the ‘vehicle’) are scanned for relational similarities (e.g. Gentner et al., 2001; Gentner & Bowdle, 2008). A second view, the Category Inclusion View, sees metaphor comprehension as a process in which the lexical meaning of the metaphoric vehicle is spontaneously changed to represent a newly created, goal-oriented category (e.g. Glucksberg, 2008; Sperber & Wilson, 2008). Despite there being a large body of experimental data testing the predictions made by these theories (e.g. Bowdle & Gentner, 2005; Gernsbacher et al., 2001; Jones & Estes, 2005; Jones & Estes, 2006; McGlone & Manfredi, 2001; Wolff & Gentner, 2011), it has not been possible to settle this debate and tip the scale in favor of one or the other view. This dissertation attempts to do just that by examining the processing of two types of German non-nominal metaphors: Verbal metaphors and verb-object metaphors. This was done by investigating the role of context during metaphor comprehension in order to further specify the available theories, and, more generally, by drawing on the literature on situated and incremental language processing (see Huettig et al., 2011; Huettig et al., 2012; Kamide, 2008; Knoeferle & Guerra, 2016, for reviews). Overall the results of 14 experiments are interpreted as being more consistent with the Category Inclusion View than with the Indirect Comparison View.

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