Caudrey D J, Kirk K, Thomas P C, Ng K O
Br J Psychiatry. 1980 Oct;137:352-60. doi: 10.1192/bjp.137.4.352.
The perception by schizophrenic patients of stimuli with more than one feature (dimension) was investigated using psychiatric and non-psychiatric control groups. Indices of the ability (a) to make use of redundant stimulus cues, (b) to 'screen out' or filter irrelevant stimulus features, and (c) to scan the perceptual field for relevant stimulus features, indicated that only filtering was consistently poor in schizophrenia. It has been suggested that the schizophrenic patient may tend to perceive his environment in an undifferentiated holistic manner rather than in an analytic manner and the implication for the theory of left hemisphere pathology in schizophrenia is discussed. However, the performance of the schizophrenic subjects did not differ significantly from that of the group of depressed patients, which suggests that the selective attention deficits previously observed in schizophrenia are not specific to the disorder.
利用精神病对照组和非精神病对照组，对精神分裂症患者感知具有多个特征（维度）的刺激的情况进行了研究。衡量（a）利用冗余刺激线索的能力、（b）“筛选出”或过滤无关刺激特征的能力以及（c）在感知领域中搜索相关刺激特征的能力的指标表明，在精神分裂症中，只有过滤能力一直较差。有人提出，精神分裂症患者可能倾向于以未分化的整体方式而非分析方式感知其环境，并讨论了这对精神分裂症左半球病理学理论的影响。然而，精神分裂症受试者的表现与抑郁症患者组的表现没有显著差异，这表明先前在精神分裂症中观察到的选择性注意力缺陷并非该疾病所特有。
