Apparent motion perception in patients with paranoid schizophrenia
Apparent motion perception in patients with paranoid schizophrenia
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DOI：
10.1007/s00406-012-0344-5
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发表时间：
2013-04
影响因子：
4.7
通讯作者：
L. L. O. Sanders-L.;W. de Millas;A. Heinz;N. Kathmann;P. Sterzer
中科院分区：
文献类型：
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作者：
L. L. O. Sanders-L.;W. de Millas;A. Heinz;N. Kathmann;P. Sterzer
知觉推理受损被认为是精神分裂症阳性症状的核心。视运动（AM）是一种视觉错觉，当两个空间上分离的物体交替闪烁时，感知推理会产生单个物体来回移动的体验。在这里，我们调查了偏执型精神分裂症患者的 AM 感知强度。患者不太容易受到错觉的影响，这通过个体在 AM 的最佳呈现频率下感知运动的概率较低来表明。此外，AM知觉的概率与患者组的妄想信念呈负相关。这些结果表明，精神分裂症可能与对通常依赖于知觉推理的视觉现象的敏感性降低有关。
Impaired perceptual inference has been suggested to be at the core of positive symptoms in schizophrenia. Apparent motion (AM) is a visual illusion in which perceptual inference gives rise to the experience of a single object moving back and forth when two spatially separated objects are flashed in alternation. Here, we investigated the strength of AM perception in patients with paranoid schizophrenia. Patients were less susceptible to the illusion as indicated by a lower probability of motion perception at the individual’s optimal presentation frequency for AM. In addition, the probability of AM perception was inversely related to delusional conviction in the patient group. These results suggest that schizophrenia may be associated with a reduced susceptibility to visual phenomena that commonly rely on perceptual inference.