976 resultados para Mental representations


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This study approached perceptions of mental illness by nineteen professionals who work in a Family Health Unit, by means of graphic representations (drawings). We used qualitative methods. Data was collected by means of a Presentative-Expressive Procedure. Four themes were identified using Thematic Analysis. The professionals associate mental disorders with: health care, medical-centered view, exclusion/inclusion, social environment. These perceptions are related to a biological paradigm, favoring the reproduction of prejudices about mental illness. The analysis also emphasizes the importance of a wide range of cares, while considering how difficult it may be for the professionals. We conclude that it is necessary to invest on professional preparation, in an attempt to transform ideoaffective contents presented by the subjects’ imaginary.

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Four experiments examined how people operate on memory representations of familiar songs. The tasks were similar to those used in studies of visual imagery. In one task, subjects saw a one word lyric from a song and then saw a second lyric; then they had to say if the second lyric was from the same song as the first. In a second task, subjects mentally compared pitches of notes corresponding to song lyrics. In both tasks, reaction time increased as a function of the distance in beats between the two lyrics in the actual song, and in some conditions reaction time increased with the starting beat of the earlier lyric. Imagery instructions modified the main results somewhat in the first task, but not in the second, much harder task. The results suggest that song representations have temporal-like characteristics. (PsycINFO Database Record (c) 2012 APA, all rights reserved)

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We previously observed that mental manipulation of the pitch level or temporal organization of melodies results in functional activation in the human intraparietal sulcus (IPS), a region also associated with visuospatial transformation and numerical calculation. Two outstanding questions about these musical transformations are whether pitch and time depend on separate or common processing in IPS, and whether IPS recruitment in melodic tasks varies depending upon the degree of transformation required (as it does in mental rotation). In the present study we sought to answer these questions by applying functional magnetic resonance imaging while musicians performed closely matched mental transposition (pitch transformation) and melody reversal (temporal transformation) tasks. A voxel-wise conjunction analysis showed that in individual subjects, both tasks activated overlapping regions in bilateral IPS, suggesting that a common neural substrate subserves both types of mental transformation. Varying the magnitude of mental pitch transposition resulted in variation of IPS BOLD signal in correlation with the musical key-distance of the transposition, but not with the pitch distance, indicating that the cognitive metric relevant for this type of operation is an abstract one, well described by music-theoretic concepts. These findings support a general role for the IPS in systematically transforming auditory stimulus representations in a nonspatial context. (C) 2013 Elsevier Inc. All rights reserved.

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Two informationally equivalent texts were constructed which described a fictitious town, emphasizing its spatial layout. In one version (Survey text), spatial information was in geographic terms, while in the other version (Route text), the equivalent information was provided in the form of directions for driving through the town. Subjects recalled these texts and verified old as well as inference statements. In Experiment I, subjects were able to recall the texts quite well, while showing little ability to use the information they had acquired to make inferences about spatial relations in the town which had not been directly stated in the text. With simpler texts, subjects in Experiment II were able to make infereces, especially when the form of the question corresponded to the version of the text they had read. It was concluded that free recall depended on the construction of a propositional textbase during comprehension, while inferences required a situation model, either in the form of a mental map or a procedural representation of the town. It could be shown that the form of the situation model depended on both the representation invited by the text and subject biases.

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A imagem mental e a memória visual têm sido consideradas como componentes distintos na codificação da informação, e associados a processos diferentes da memória de trabalho. Evidências experimentais mostram, por exemplo, que o desempenho em tarefas de memória baseadas na geração de imagem mentais (imaginação visual) sofre a interferência do ruído visual dinâmico (RVD), mas não se observa o mesmo efeito em tarefas de memória visual baseadas na percepção visual (memória visual). Embora várias evidências mostrem que tarefas de imaginação e de memória visual sejam baseadas em processos cognitivos diferentes, isso não descarta a possibilidade de utilizarem também processos em comum e que alguns resultados experimentais que apontam diferenças entre as duas tarefas resultem de diferenças metodológicas entre os paradigmas utilizados para estuda-las. Nosso objetivo foi equiparar as tarefas de imagem mental visual e memória visual por meio de tarefas de reconhecimento, com o paradigma de dicas retroativas espaciais. Sequências de letras romanas na forma visual (tarefa de memória visual) e acústicas (tarefa de imagem mental visual) foram apresentadas em quatro localizações espaciais diferentes. No primeiro e segundo experimento analisou-se o tempo do curso de recuperação tanto para o processo de imagem quanto para o processo de memória. No terceiro experimento, comparou-se a estrutura das representações dos dois componentes, por meio da apresentação do RVD durante a etapa de geração e recuperação. Nossos resultados mostram que não há diferenças no armazenamento da informação visual durante o período proposto, porém o RVD afeta a eficiência do processo de recuperação, isto é o tempo de resposta, sendo a representação da imagem mental visual mais suscetível ao ruído. No entanto, o processo temporal da recuperação é diferente para os dois componentes, principalmente para imaginação que requer mais tempo para recuperar a informação do que a memória. Os dados corroboram a relevância do paradigma de dicas retroativas que indica que a atenção espacial é requisitada em representações de organização espacial, independente se são visualizadas ou imaginadas.

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Background: Research into mental-health risks has tended to focus on epidemiological approaches and to consider pieces of evidence in isolation. Less is known about the particular factors and their patterns of occurrence that influence clinicians’ risk judgements in practice. Aims: To identify the cues used by clinicians to make risk judgements and to explore how these combine within clinicians’ psychological representations of suicide, self-harm, self-neglect, and harm to others. Method: Content analysis was applied to semi-structured interviews conducted with 46 practitioners from various mental-health disciplines, using mind maps to represent the hierarchical relationships of data and concepts. Results: Strong consensus between experts meant their knowledge could be integrated into a single hierarchical structure for each risk. This revealed contrasting emphases between data and concepts underpinning risks, including: reflection and forethought for suicide; motivation for self-harm; situation and context for harm to others; and current presentation for self-neglect. Conclusions: Analysis of experts’ risk-assessment knowledge identified influential cues and their relationships to risks. It can inform development of valid risk-screening decision support systems that combine actuarial evidence with clinical expertise.

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Visual mental imagery is a process that draws on different cognitive abilities and is affected by the contents of mental images. Several studies have demonstrated that different brain areas subtend the mental imagery of navigational and non-navigational contents. Here, we set out to determine whether there are distinct representations for navigational and geographical images. Specifically, we used a Spatial Compatibility Task (SCT) to assess the mental representation of a familiar navigational space (the campus), a familiar geographical space (the map of Italy) and familiar objects (the clock). Twenty-one participants judged whether the vertical or the horizontal arrangement of items was correct. We found that distinct representational strategies were preferred to solve different categories on the SCT, namely, the horizontal perspective for the campus and the vertical perspective for the clock and the map of Italy. Furthermore, we found significant effects due to individual differences in the vividness of mental images and in preferences for verbal versus visual strategies, which selectively affect the contents of mental images. Our results suggest that imagining a familiar navigational space is somewhat different from imagining a familiar geographical space. © 2014 Elsevier Ireland Ltd.

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Este trabalho pretende conhecer as representações sociais de Psiquiatras, Internos de Psiquiatria, Pedopsiquiatras e Psicólogos Clínicos sobre a doença mental em quatro dimensões: (1) conceptual – conceitos de saúde e doença mental, (2) explicativa – causalidade da doença mental (3) interventiva – modelos de intervenção e objetivos da prática clínica, e (4) contextual – influência do contexto na prática clínica. É um estudo qualitativo de carácter exploratório, pontuado epistemologicamente pelo construcionismo social e teoricamente pelo quadro das representações sociais. Participaram 30 profissionais (13 Psicólogos, 10 Psiquiatras, 5 Internos de Psiquiatria e 2 Pedopsiquiatras) aos quais foi aplicada uma entrevista semi-estruturada que foi analisada quanto ao seu conteúdo (através do software NVivo 10). Da análise dos resultados salienta-se que as representações dos profissionais quanto à conceptualização da doença mental são heterogéneas. A saúde mental é equacionada como flexibilidade, adaptação, funcionalidade e bem-estar biopsicossocial do indivíduo. A causalidade atribuída à doença mental assenta no modelo interacionista biopsicossocial. Quanto à intervenção, os participantes utilizam estratégias e modelos de intervenção ecléticos, salientando-se como objetivos a promoção do bem-estar e diminuição do sofrimento, a promoção do funcionamento e autonomia e a “cura”. O contexto institucional surge como comprometedor da liberdade de atuação na prática pública e como facilitador da liberdade de atuação do clínico na prática privada. Conclui-se que a análise individual (disposicional) do comportamento patológico é privilegiada em detrimento da análise contextual (situacional). Implicações do presente estudo para o quadro teórico das representações sociais da doença mental são consideradas. / The present aims to acknowledge the social representations about mental disease of Psychiatrists, Psychiatrist Interns, Child Psychiatrists and Clinical Psychologists. Four dimensions were considered: (1) conceptual - concepts about health and mental disease; (2) descriptive – mental disease causes; (3) intervention – models for clinical intervention and clinical procedures; and (4) context – influence of the context in clinical procedures. A qualitative and exploratory study was developed based, epistemologically, on social constructionism and social representations. Through the course of the research 30 semi-structured interviews were conducted (13 psychologists, 10 psychiatrists, 5 Internal Psychiatry and 2 child psychiatrists) to which it was applied a semi-structured interview. A content analysis of the interviews was performed by NVivo 10. Results showed that the social representations of mental disease are heterogeneous. Mental health is conceptualized according to the flexibility, adaptation, functionality and the biopsychosocial well-being of the individual. The causality of mental disease is explained by the interactionist biopsychosocial model. Professionals mainly adopt eclectic intervention models and strategies in clinical practice. Participants refer that their goals are to promote the well-being, diminish the suffering and promote the functioning, the autonomy and “cure”. The public institutional framework compromises the flexibility in the clinical procedures. Private practices increases the procedural possibilities of the professionals. Concludes that the individual analysis (dispositional) of the pathological behavior is privileged in detriment of the contextual analysis (situational). Implications of this study to the theoretical framework of social representations of mental illness are considered.

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This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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The repercussions of violence on the mental, social, and physical well-being of the elderly are some of the most challenging problems in public health today. Using a qualitative design, we conducted a study in Portugal and the United States that applied both descriptive and comparative methods in order to understand the social representations of violence against the elderly. Utilizing the Theory of Social Representations, we explored the perspectives of the elderly, their families, and healthcare professionals on the subject of violence against the elderly. The data on which the findings were based were obtained in two very different cultural contexts, yet the representations of violence against the elderly revealed no significant cross-cultural differences. However, conceptualizations regarding expectations of care and protection for the elderly proved to be distinct. We discussed concerns about the general attitudes of tolerance toward violence, including those of the elderly who self-identified as eventual victims. Violence against the elderly was portrayed as a part of old age and also somehow was justified by it. The results also indicated the need to better prepare healthcare professionals and society in general to deal with the consequences of the problem and not, as we would like to report, to prevent it from happening.