Résumé
There is no consensus about the definition of self however it is traditionally associated to identity. Many researchers are searching the neural regions that process self related information. Some studies have observed an activation of midline structures during the processing of information related to self. Self perturbations are not a part of diagnostic criteria for schizophrenia, nevertheless they are implicitly considered as part of the clinical picture. Some studies have tried to determine its perturbation using psychometric tests, but there are no studies that assess the association between brain activity and the performance of schizophrenics in tasks that require self-referential evaluations. The attempt to find a neural substrate for self is polemical. However, this model could be evaluated studying if, in schizophrenic patients, the tasks related to self processing are different from normal subjects at the psychophysiological and behavioral levels. This line of research could provide new diagnostic tools for early diagnosis and prevention inpsychiatry.
Sujets)
Humains , Moi , Voies nerveuses/physiologie , Personnalité , Schizophrénie/diagnostic , Psychologie des schizophrènes , Formation de concepts , Cortex préfrontal/physiologie , Schizophrénie/physiopathologieRésumé
Una situación poco estudiada en nuestro país es el impact o que produce una catástrofe natural en la salud mental de una población. La erupción del volcán Lonquimay, IX Región, iniciada el 25 de Dic. de 1988, con todas sus posteriores consecuencias, es una buena oportunidad para realizar un estudio de esta índole. Se confeccionaron encuestas basadas en la "Escala de Ansiedad de Hamilton" y fueron aplicadas a la población de Lonquimay y grupos controles. En los resultados existen diferencias significativas en cuanto a niveles de ansiedad. En Lonquimay se observó un 37% de personas con ansiedad menor y 52% con ansiedad mayor y en los grupos controles un 40% de ansiedad menor y sólo un 25% de ansiedad mayor