Ikebuchi E, Nakagome K, Takahashi N
Department of Psychiatry, Teikyo University School of Medicine, Tokyo, Japan.
Schizophr Res. 1999 Feb 15;35(3):255-62. doi: 10.1016/s0920-9964(98)00123-6.
Persons with schizophrenia show deficits across a broad range of cognitive domains, and their social skill deficits are thought, to some extent, to be caused by cognitive dysfunction. In this study, we attempted to replicate the correlation between the early stages of information processing and non-verbal skills. Subjects for the study included 22 men and six women who met DSM-IV criteria for the diagnosis of schizophrenia. All subjects were attending a rehabilitation program at the day-treatment centers of their hospitals. Social skills were assessed using a structured role-play test. The Degraded-Continuous Performance Test (CPT) and Span of Apprehension Test (SPAN) were used. Non-verbal skills were significantly correlated with CPT-False Alarm Rate (the rate of commission errors of all trials) in multiple regression analysis, but the receiving-processing skills did not have any relation to CPT or SPAN score. Non-verbal skills may be related to early information-processing deficiency, especially the response-inhibiting system. Receiving and processing skills may be related to later stages of information processing, or may reflect not only 'molecular' stages of information processing (less complex and less integration task in a continuum of complexity of cognitive processes) but also other factors such as social learning.
精神分裂症患者在广泛的认知领域存在缺陷，并且他们的社交技能缺陷在一定程度上被认为是由认知功能障碍引起的。在本研究中，我们试图重现信息处理早期阶段与非语言技能之间的相关性。该研究的受试者包括22名男性和6名女性，他们符合精神分裂症诊断的DSM-IV标准。所有受试者都在其医院的日间治疗中心参加康复项目。使用结构化角色扮演测试评估社交技能。采用了简化连续作业测试（CPT）和注意广度测试（SPAN）。在多元回归分析中，非语言技能与CPT虚报率（所有试验中的错误发生率）显著相关，但接受处理技能与CPT或SPAN分数没有任何关系。非语言技能可能与早期信息处理缺陷有关，尤其是反应抑制系统。接受和处理技能可能与信息处理的后期阶段有关，或者可能不仅反映信息处理的“分子”阶段（在认知过程复杂性连续体中较不复杂且整合程度较低的任务），还反映其他因素，如社会学习。
