Comment comprendre le fait que la réalité délirante du schizophrène puisse à la fois être marquée par une certitude inébranlable mais également que cette réalité puisse se modifier au fil des échanges que nous pouvons avoir avec des patients psychotiques ? N'y a-t-il pas d'ailleurs une contradiction à envisager la possibilité d'une évolution au sein d'une certitude délirante ?Notre thèse cherchera à rendre compte de l'évolution du délire dans la schizophrénie, et plus particulièrement de celle de la certitude délirante qui caractérise ce type de pathologie. Nous nous attacherons à mettre en valeur la fonction de l'adhésion au délire en essayant de comprendre les raisons qui poussent un sujet à croire en une réalité délirante. Après nous être penché sur la manière dont ce phénomène de créance est conceptualisé dans trois disciplines de la pensée (la philosophie, la psychiatrie et la psychanalyse), nous chercherons à montrer en quoi la certitude délirante peut répondre à une nécessité fondamentale de sa construction subjective et comment elle indique une lutte du sujet par rapport au vécu de l'angoisse. Nous mettrons alors en lien cette montée angoissante avec la survenue des fantasmes tels qu'ils peuvent se manifester à l'insu du sujet. Le cas clinique sur lequel nous allons nous appuyer rendra néanmoins compte des limites de cette certitude du délire, celle-ci ne permettant pas au sujet schizophrène de tout à fait se débarrasser de la pensée fantasmatique. L'étude que nous consacrons aux « échecs » de la certitude délirante visera à rendre compte de la fragilité du système délirant et des conséquences de l'intrusion fantasmatique sur le vécu subjectif du sujet psychotique. Notre thèse nous permettra ainsi de mettre en lien les limites de la construction délirante avec l'impossibilité du sujet schizophrène à refouler la poussée fantasmatique, en faisant comme hypothèse que les glissements subies par la réalité délirante seraient une conséquence d'une non prise du nom. En considérant ces éléments de la psychopathologie il s'agira pour nous d'interroger les conditions d'une thérapeutique adaptée à la problématique psychotique. / How to understand that the delusional reality of the schizophrenic person can both be marked by an unshakeable certainty but that this reality can change over the discussions we can have with psychotic patients? Is there however not a contradiction to consider the possibility of an evolution within a delusional certainty?This research paper will aim to study the delusional processes in schizophrenia, in particular the phenomenon of delirious certainty which characterizes this type of pathology. We will focus on highlighting the function of such adhesion in the psychotic delirium, by trying to understand the reasons which lead the subject to believe in a delusional reality. After having considered how the phenomenon of credence is conceptualized in three disciplines of thought (philosophy, psychiatry and psychoanalysis), we will attempt to show how delirious certainty can answer a fundamental necessity for its subjective construction and how it shows a fight of the subject with the experience of anxiety. We will link this rise of anxiety with the onset of fantasies as they occur unbeknownst to the subject. However, the clinical case we will lean on will report the limitations of this delirious certainty, for it does not allow the schizophrenic subject to get rid entirely of fantasy thinking. The study we devote to these « failures » of the delirious certainty will aim to address the fragility of the delusional system and the consequences of the fantastical intrusion on the subjective experience of the psychotic subject. Our thesis will help us to link the limits of the delusional construction with the impossibility for delusional schizophrenic subjects to repress their surging fantasy. We will make the assumption that the evolution incurred by the delusional reality is a consequence of not taking the name. By considering these elements of psychopathology, we will examine the conditions of a therapy suitable for this psychotic problematic

Orientador: Claudia Thereza Guimarães de Lemos / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem / Made available in DSpace on 2018-08-14T01:06:18Z (GMT). No. of bitstreams: 1 Pincerati_WalkerDouglas_M.pdf: 700485 bytes, checksum: a5840ef098c9d3480f996d428be65ade (MD5) Previous issue date: 2009 / Resumo: Este estudo, partindo da tese psicanalítica de que existe uma diferença estrutural entre a linguagem na neurose e na psicose, tem por objetivo analisar e discutir o estatuto das palavras que têm efeito neológico no dizer psicótico. Lançando mão dos dados de LC, que tem o diagnóstico psiquiátrico de esquizofrenia, procurou-se: (i) levantar, descrever e analisar as palavras de efeito neológico nesse dizer situando-as como ápices ou condensações das "idéias delirantes" e significantes em trânsito no delírio; (ii) realizar uma comparação dessas palavras com as formas possíveis na língua, depreendendo, com isso, a especificidade do efeito neológico em relação ao que a Lexicologia entende como um neologismo; e (iii) discutir a função dessas palavras na produção da opacidade do dizer psicótico e na arquitetura do delírio. A partir da leitura lacaniana de Freud, tomou-se o delírio como um processo de significantização que visa atenuar a angústia e reatar as relações do delirante, enquanto habitante da linguagem, com a realidade. Com a análise, chega-se a conclusão de que a palavra que tem efeito neológico tem como função encapsular num significante ideias e significantes em jogo no delírio. Ela situa para o delirante uma significação especial / Abstract: Psychoanalysis assumes that there is a structural difference between language in neurosis and language in psychosis. This study adopts this thesis and discusses the status of words of neologic effect in psychotic discourse. By considering the data of LC, a subject with psychiatric diagnosis of schizophrenia, we attempted (i) to identify, describe, and analyze the words of neologic effect in such discourse, situating them either as apices or as condensations of "delirious ideas" and signifiers moving in the stream of a delirium; (ii) to compare these words with possible forms in language, thereby deducing the specificity of the neologic effect against what Lexicology calls a neologism; and (iii) to discuss the function of such words in the production of opacity in psychotic discourse and in the delirium architecture. The Lacanian reading of Freud takes delirium as a process of significantization which aims at attenuating anguish and re-establishing the relations of the delirious person, as an inhabitant of language, with reality. We conclude that the word of neologic effect works by condensing in a signifier ideas and signifiers at stake in the delirium. Such words gesture at a special signification for the delirious subject / Mestrado / Linguistica / Mestre em Linguística