منابع مشابه
Visual broadcast in schizophrenia.
Although doctors are trained to classify psychiatric symptoms (for example, as ‘delusions’ or ‘hallucinations’) within a standardised mental state examination, it is likely that some symptoms will defy such classification. Hence, if the mental state examination is not supplemented by patients’ verbatim descriptions of their experiences, then novel symptoms may go unrecognised and potentially un...
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Abnormal perceptual experiences are central to schizophrenia but the nature of these anomalies remains undetermined. We investigated contextual processing abnormalities across a comprehensive set of visual tasks. For perception of luminance, size, contrast, orientation and motion, we quantified the degree to which the surrounding visual context altered a center stimulus' appearance. Across task...
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Compared to unaffected observers patients with schizophrenia (SZ) show characteristic differences in visual perception, including a reduced susceptibility to the influence of context on judgments of contrast - a manifestation of weaker surround suppression (SS). To examine the generality of this phenomenon we measured the ability of 24 individuals with SZ to judge the luminance, contrast, orien...
متن کاملAudio-visual integration in schizophrenia.
Integration of information provided simultaneously by audition and vision was studied in a group of 18 schizophrenic patients. They were compared to a control group, consisting of 12 normal adults of comparable age and education. By administering two tasks, each focusing on one aspect of audio-visual integration, the study could differentiate between a spatial integration deficit and a speech-b...
متن کاملVisual masking & schizophrenia
Visual masking is a frequently used tool in schizophrenia research. Visual masking has a very high sensitivity and specificity and masking paradigms have been proven to be endophenotypes. Whereas masking is a powerful technique to study schizophrenia, the underlying mechanisms are discussed controversially. For example, for more than 25 years, masking deficits of schizophrenia patients were mai...
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ژورنال
عنوان ژورنال: Medical Humanities
سال: 2005
ISSN: 1468-215X,1473-4265
DOI: 10.1136/jme.2005.000211