Strauss M E, Prescott C A, Gutterman D F, Tune L E
Dept. of Psychology, Johns Hopkins University, Baltimore, MD 21218.
Schizophr Bull. 1987;13(4):699-704. doi: 10.1093/schbul/13.4.699.
Reduced perceptual span has been suggested to be a cognitive marker of vulnerability to schizophrenia. However, the specificity of this impairment in visual information processing to schizophrenia is not well established. This preliminary study examined perceptual span in schizophrenic and manic patients divided into subgroups with and without active symptomatology. Symptomatic patients had reduced span in comparison with less symptomatic groups, but there were no differences between schizophrenic and manic patients.
知觉广度降低被认为是易患精神分裂症的一种认知标志。然而，这种视觉信息处理障碍对精神分裂症的特异性尚未得到充分证实。这项初步研究调查了分为有和没有活动症状亚组的精神分裂症患者和躁狂症患者的知觉广度。有症状的患者与症状较轻的组相比，知觉广度降低，但精神分裂症患者和躁狂症患者之间没有差异。
