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Altered depth perception is associated with presence of schizotypal personality traits

机译：深度知觉改变与精神分裂型人格特质的存在有关

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Introduction. Impaired depth perception, a fundamental aspect of early visual processing, has been shown in patients with schizophrenia suggesting a disturbance to magnocellular and possibly parvocellular pathways. Despite some evidence showing visual-perceptive deficits in people with schizotypal personality traits (SPT), depth perception has not been evaluated in these subjects. Methods. 12 clinically healthy schizotypy and 17 control participants were examined using a novel stereoscopic depth perception task. A mixed ANOVA design considered the Group (SPT/control) as independent factor, and trial Block (BD/BD + /BD-) and target Condition (SDSS/SDDS/DDSS/DDDS) were considered as repeated measures. Results. Schizotypal participants were not significantly different to controls on simple judgements of depth but demonstrated a subtle impairment in perceiving binocular depth when performing high difficulty judgements. Conclusions. The presence of subtle depth perception problems in schizotypal subjects, similar but less marked than those of schizophrenia patients, may suggest a less pervasive disturbance of early information processing. If so, such deficits could be considered as innate neurological changes that may occur in people vulnerable for schizophrenia, thus with the potential to be a novel intermediate phenotype.View full textDownload full textKeywordsBinocular disparity, Depth perception, Schizophrenia, Schizotypal personality traits, Stereopsis, VisionRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/13546805.2011.576864
机译：介绍。精神分裂症患者的深度知觉受损是早期视觉处理的基本方面，表明精神分裂症患者的巨细胞和小细胞途径受到干扰。尽管有一些证据显示患有分裂型人格特质（SPT）的人的视觉感知缺陷，但尚未在这些受试者中评估深度知觉。方法。使用新型立体深度感知任务检查了12名临床健康的精神分裂症患者和17名对照参与者。混合方差分析设计将组（SPT /对照）作为独立因素，将试验区（BD / BD + / BD-）和目标条件（SDSS / SDDS / DDSS / DDDS）视为重复测量。结果。分裂型参与者在简单的深度判断上与对照组无显着差异，但在进行高难度判断时，在感知双眼深度方面表现出细微的损伤。结论。与精神分裂症患者相比，精神分裂症患者存在较细微的深度感知问题，但提示早期信息处理的普遍性较轻。如果是这样的话，这种缺陷可以被认为是易患精神分裂症的人可能发生的先天性神经系统变化，因此有可能成为新型的中间表型。查看全文下载全文关键词双目视差，深度知觉，精神分裂症，精神分裂型人格特质，刻板印象， VisionRelated var addthis_config = {ui_cobrand：“泰勒和弗朗西斯在线”，servicescompact：“ citeulike，netvibes，twitter，technorati，delicious，linkedin，facebook，stumbleupon，digg，google，更多”，发布号：“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/13546805.2011.576864

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