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<dc:title xml:lang="fr">Les fonctions visuelles rétiniennes et corticales dans les troubles du spectre de la schizophrénie et les situations à risque de psychose</dc:title>
<dcterms:alternative xml:lang="en">Retinal and cortical visual functions in schizophrenia spectrum disorders and situations at risk of psychosis</dcterms:alternative>
<dc:subject xml:lang="fr">Électrophysiologie Visuelle</dc:subject>
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<dc:subject xml:lang="fr">Cortex Visuel Primaire (CVP)</dc:subject>
<dc:subject xml:lang="fr">Troubles du spectre de la Schizophrénie</dc:subject>
<dc:subject xml:lang="fr">État Clinique à Haut Risque de Psychose (ECHR-P)</dc:subject>
<dc:subject xml:lang="en">Visual Electrophysiology</dc:subject>
<dc:subject xml:lang="en">Retina</dc:subject>
<dc:subject xml:lang="en">Primary Visual Cortex (PVC)</dc:subject>
<dc:subject xml:lang="en">Schizophrenia Spectrum Disorders (SSDs)</dc:subject>
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<tef:elementdEntree autoriteExterne="031383823" autoriteSource="Sudoc">Aire visuelle</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">Les troubles psychotiques sont caractérisés par d’importantes conséquences fonctionnelles avec des preuves émergentes concernant l’altération des fonctions visuelles de bas niveau. Le lien anatomique et fonctionnel entre la rétine et le cortex visuel a notamment permis d’émettre des hypothèses quant à l’association entre les altérations des deux étages visuels. Nous avons investigué les mesures électrophysiologiques visuelles rétiniennes et corticales dans les troubles du spectre de la schizophrénie et dans les situations à risque de psychose dont l’usage régulier de cannabis et les phases précoces de psychose font partie intégrante. Les résultats ont mentionné des altérations portant sur la plupart des cellules rétiniennes et des déficits au regard du cortex visuel primaire, avec un lien potentiel entre les deux types de mesures dans la schizophrénie. L’intérêt des biomarqueurs électrophysiologiques réside également dans le lien décrit avec les symptômes de la psychose, ce qui incite ainsi à les utiliser davantage en pratique clinique à des fins d’améliorations diagnostiques.</dcterms:abstract>
<dcterms:abstract xml:lang="en">Psychotic disorders are characterized by severe functional consequences, with emerging evidence of impairment in low-level visual functions. Most notably, the anatomical and functional link between the retina and the visual cortex led to hypotheses concerning the association between alterations in both visual stages. We investigated retinal and cortical visual electrophysiological measurements in schizophrenia spectrum disorders and situations at risk of psychosis, of which regular cannabis use and early phases of psychosis are an integral part. The results highlighted alterations in most retinal cells and deficits in the primary visual cortex, with a potential link between both measures in schizophrenia. The relevance of electrophysiological biomarkers also lies in the link described with psychotic symptoms, motivating them to be used more widely in clinical practice to improve diagnosis.</dcterms:abstract>
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