Inhibition,unusual perceptual experiences and psychoticism |
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| Affiliation: | 1. Novosibirsk State Technical University, Karl Marks Prospekt, 20, 630073 Novosibirsk, Russia;2. Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea;3. Université Grenoble Alpes, SIMAP, F-38000 Grenoble, France;4. CNRS, SIMaP, F-38000 Grenoble, France;5. Université Grenoble Alpes, LEPMI, F-38000 Grenoble, France;6. CNRS, LePMI, F-38000 Grenoble, France;7. DEMa, Universidade Federal de Sao Carlos, São Paulo 13565-905, Brazil;1. University of North Carolina at Chapel Hill, Department of Psychology and Neuroscience, Davie Hall (CB #3270), Chapel Hill, NC 27599, USA;2. University of North Carolina at Chapel Hill, Department of Psychiatry, Chapel Hill, NC, 101 Manning Drive (CB#7160), Chapel Hill, NC 27599, USA;3. University of North Carolina at Chapel Hill, North Carolina Psychiatric Research Center, 3010 Falstaff Road, Raleigh, NC 27610, USA;4. Australian Catholic University, School of Psychology, Locked Bag 4115 Fitzroy MDC Fitzroy Victoria 3065, Melbourne, VIC, Australia;1. Department of Psychology, University of Essex, Wivenhoe Park, UK;2. Institute of Psychology, Centre for Cognitive Science, TU-Darmstadt, Germany;3. Department of Philosophy and Communication Studies FILCOM, Bologna, Italy;4. Department of Neuroscience, University of Padua, Italy;5. Department of Psychological, Health and Territorial Sciences, “G. d''Annunzio” University of Chieti-Pescara, Chieti, Italy;6. Institute for Advanced Biomedical Technologies, ITAB, “G. d''Annunzio” University of Chieti-Pescara, Chieti, Italy;7. Department of Neuroscience, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy |
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| Abstract: | The dimensional approach to psychosis suggests that research should focus on the performance of psychiatrically normal individuals on measures derived from the study of psychosis. Recent theories of schizophrenia postulate a defect at the interface of preconscious/conscious processes. Such a defect could occur as a result of some disturbance in inhibitory attentional mechanisms. A group of normal S's were assessed on three measures; (a) a priming task measuring inhibition, (b) a perceptual task, the verbal transformation effect, and (c) a number of questionnaires of relevance to the psychoticism dimension. As predicted low inhibition was correlated with unusual experiences on the perceptual task. Each of these measures correlated with a questionnaire measure of predisposition to hallucinations, but not with the other measures of psychoticism. No correlations with other personality variables as assessed by the EPQ were found. |
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