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首页> 外文期刊>Biomedizinische Technik >A virtual environment for egocentric and allocentric mental transformations: a study on a nonclinical population of adults with distinct levels of schizotypy
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A virtual environment for egocentric and allocentric mental transformations: a study on a nonclinical population of adults with distinct levels of schizotypy

机译：一个以自我为中心和同心为中心的心理转变的虚拟环境：一项针对精神分裂症水平不同的成年人的非临床人群的研究

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摘要

We benefited from the flexibility provided by virtual reality to enhance a classical paradigm on array and self mental rotations and related questions on a set of items. We used this paradigm to investigate how the Level of Schizotypy in nonclinical subjects might influence their behavior in egocentric and allocentric mental transformations. Three elements of novelty were introduced: (i) we separated the phases of mental transformation (Imagined Rotation Phase) and task performance (Task Phase), (ii) we measured the time required for Imagined Rotation Phase and Task Phase separately, and (iii) we cued self-rotations with a virtual human being (self-avatar) or an inanimate object (self-chair). Twenty-four nonclinical participants were categorized in low- and high-schizotypal subjects (Low-S, High-S). A mixed-design analysis of variance showed that High-S were significantly faster than Low-S during the Imagined Rotation Phase (array and self-chair rotations) and during the Task Phase (self-chair). High-S were also faster in the self-chair than in the self-avatar rotation, supporting the existence of a dissociation between perspective changing and perspective taking in High-S. In line with the literature, we found that participant performances decreased with increasing angular difference between the initial and the imagined perspective.
机译：我们受益于虚拟现实提供的灵活性，以增强关于数组和自我思维轮换以及一组项目相关问题的经典范式。我们使用这种范例来研究非临床受试者的精神分裂症水平如何影响以自我为中心和同心为中心的心理转变的行为。引入了三个新颖性元素：（i）我们将思维转变的阶段（想象的旋转阶段）和任务执行的阶段（任务阶段）分开；（ii）我们分别测量了想象的旋转阶段和任务阶段所需的时间，并且（iii ），我们以虚拟人（自我化身）或无生命的物体（自我椅子）为自转的线索。将二十四位非临床参与者分为低和高分裂型受试者（Low-S，High-S）。混合设计的方差分析表明，在想象的旋转阶段（阵列和自我椅子旋转）和任务阶段（自我椅子），High-S明显快于Low-S。自椅子上的High-S也比自头像旋转更快，这支持了High-S中视角变化和视角获取之间的分离。根据文献，我们发现参与者的表现随着初始视角和想象视角之间的角度差异的增加而降低。

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  • 来源
    《Biomedizinische Technik》 |2011年第5期|p.291-299|共9页
  • 作者

    Martin Steinisch; Valentina Sulpizio; Angelo Andrea Iorio; Alessandra Di Naccio; Jens Haueisen; Giorgia Committeri; Silvia Comani;

  • 作者单位

    BIND - Behavioral Imaging and Neural Dynamics Center, University "G. d'Annunzio", Chieti, Italy;

    Department of Neuroscience and Imaging, University "G. d'Annunzio", Chieti, Italy,ITAB - Institute for Advanced Biomedical Technologies,"G. d'Annunzio" Foundation, Chieti, Italy;

    Faculty of Psychology, University "G. d'Annunzio",Chieti, Italy;

    Faculty of Psychology, University "G. d'Annunzio",Chieti, Italy;

    BMTI - Institute of Biomedical Engineering and Informatics, Ilmenau University of Technology, Ilmenau,Germany;

    BIND - Behavioral Imaging and Neural Dynamics Center, University "G. d'Annunzio", Chieti, Italy,ITAB - Institute for Advanced Biomedical Technologies,"G. d'Annunzio" Foundation, Chieti, Italy;

    BIND - Behavioral Imaging and Neural Dynamics Center, University "G. d'Annunzio", Chieti, Italy,Department of Neuroscience and Imaging, University "G. d'Annunzio", Chieti, Italy,Casa di Cura Privata Villa Serena, Citta S. Angelo, Italy;

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  • 正文语种 eng
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  • 关键词

    mental rotations; perspective taking; schizotypal disorder; virtual reality;

    机译：精神错乱;观点观点精神分裂症;虚拟现实;

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