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首页> 外文期刊>Cognitive Neuropsychiatry >A pilot study exploring the contribution of working memory to “jumping to conclusions” in people with first episode psychosis
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A pilot study exploring the contribution of working memory to “jumping to conclusions” in people with first episode psychosis

机译：一项初步研究探索了工作记忆在首发性精神病患者中对“跳跃至结论”的贡献

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Introduction. People with delusional beliefs “jump to conclusions” (JTC). This finding is well replicated. However, there is only limited exploration of the factors that might lead a person to JTC. The aim of the present study was to explore the contribution of working memory processes (WM) and IQ to hasty decision making and to investigate the stability of this bias over time. Methods. A single group cross-sectional design was utilised. The study was conducted in 2 phases: (1) an initial screening phase and (2) an experimental phase whereby we explored and tested hypotheses regarding the cognitive origins of the JTC bias. In Study 1, participants completed the beads task as well as measures of mood and symptoms. In Study 2, the same participants repeated the beads task, and completed a battery of neuropsychological tests designed to assess different facets of WM and IQ. Results. In most cases, “jumpers” were indistinguishable from “nonjumpers” in terms of their neuropsychological profiles. The only exception to this pattern was for visual working memory, in which “jumpers” performed better than “nonjumpers”. In terms of the temporal stability of the JTC bias, 8 individuals (out of the 29) effectively switched from being “jumpers” at T1 to “nonjumpers” at T2. Conclusions. This study casts doubt on reduced global WM as an explanation of JTC. Rather it may be that the differences in reasoning are related to the manipulation of visual material and do not extend to other areas of neuropsychological functioning. However, as our sample is small it may be underpowered to detect important differences. Future work is therefore needed to replicate these findings.View full textDownload full textKeywordsBeads-task, Working-memory, Psychosis, Neuropsychology, SchizophreniaRelated 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/10.1080/13546805.2011.569372
机译：介绍。有妄想的人“跳到结论”（JTC）。这一发现被很好地重复。但是，对于可能导致一个人进入JTC的因素的探索很少。本研究的目的是探讨工作记忆过程（WM）和智商对仓促决策的贡献，并研究这种偏差随时间推移的稳定性。方法。使用单个组的横截面设计。该研究分两个阶段进行：（1）初始筛选阶段和（2）实验阶段，我们探索和测试了有关JTC偏见的认知起源的假设。在研究1中，参与者完成了念珠任务以及情绪和症状的测量。在研究2中，相同的参与者重复了磁珠任务，并完成了一系列旨在评估WM和智商不同方面的神经心理学测试。结果。在大多数情况下，就其神经心理学特征而言，“跳跃者”与“非跳跃者”是无法区分的。该模式的唯一例外是视觉工作记忆，其中“跳跃者”的表现优于“非跳跃者”。就JTC偏见的时间稳定性而言，有29个人中的8个人有效地从T1的“跳跃者”转变为T2的“非跳跃者”。结论。这项研究对减少全球WM作为JTC的解释提出了疑问。相反，推理上的差异可能与视觉材料的操作有关，并且没有扩展到神经心理学功能的其他领域。但是，由于我们的样本很小，因此检测重要差异的能力可能不足。因此，需要进一步的工作来复制这些发现。查看全文下载全文关键词珠粒任务，工作记忆，精神病，神经心理学，精神分裂症相关的var addthis_config = {ui_cobrand：“泰勒和弗朗西斯在线”，service_compact：“ citeulike，netvibes，twitter，technorati ，delicious，linkedin，facebook，stumbleupon，digg，google，more“，发布编号：” ra-4dff56cd6bb1830b“};添加到候选列表链接永久链接http://dx.doi.org/10.1080/13546805.2011.569372

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