The perception of real and illusory motion in schizophrenia
The perception of real and illusory motion in schizophrenia
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DOI：
10.1016/j.neuropsychologia.2010.06.027
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发表时间：
2010-08-01
期刊：
影响因子：
2.6
通讯作者：
Ettinger, U.
中科院分区：
文献类型：
--
作者：
Crawford, T. J.;Hamm, J. P.;Ettinger, U.
快速移动的错觉通常是当注意力线索（如周边闪光）先于线条开始时感知到的。该运动被认为是远离提示的后退。这项研究调查了精神分裂症患者如何感知这种错觉。19名精神分裂症患者和26名健康对照者在不同的目标速度下接受一系列真实的、虚幻的、无运动或组合的真实的和虚幻的运动刺激。检测阈值，以确定运动知觉的可靠性。精神分裂症患者与对照组在对真实的运动的感知上没有区别。然而，精神分裂症组的运动检测曲线显示，与对照组相比，幻觉运动的感知效果有所减少。研究结果显示，与健康参与者相比，精神分裂症患者可能不太容易被虚幻的运动所欺骗。(C)2010爱思唯尔有限公司版权所有。
An illusion of rapid movement is normally perceived when an attentional cue (such as a peripheral flash) preceeds the onset of a line. The movement is perceived as receding away from the cue. This study investigated how this illusion was perceived by people with schizophrenia. Nineteen participants with schizophrenia and 26 healthy matched controls were presented with a series of real, illusory, no motion or combined real and illusory motion stimuli at various target speeds. Detection thresholds were measured to determine the reliability of motion perception. The participants with schizophrenia were not distinguished from the control group in the perception of real motion. However, the motion detection curves for the schizophrenia group revealed a reduction in the perceptual effect of illusory motion in comparison to controls. The findings revealed that people with schizophrenia may be less easily deceived by illusory motion in comparison to healthy participants. (C) 2010 Elsevier Ltd. All rights reserved.