Wielgus M S, Harvey P D
Department of Psychiatry, Mt. Sinai Medical School, New York, NY 10029.
Schizophr Bull. 1988;14(4):689-700. doi: 10.1093/schbul/14.4.689.
Schizophrenic (n = 20), manic, (n = 16), and normal (n = 16) subjects were examined for their ability to shadow information dichotically and recall it. Text passages were varied in their level of organization and presented in the presence and absence of distraction. Schizophrenic patients were the only subjects affected by the presence of distraction, and this effect was specific to shadowing and not to recall. The severity of positive thought disorder was related to the three shadowing variables in the schizophrenic subjects but not in the manic sample. Closer examination revealed that performance under distraction was specifically related to thought disorder on one variable: the ability to monitor the level of organization in passages that they were shadowing. The implications of these results for research identifying causes and correlates of thought disorder are discussed.
对20名精神分裂症患者、16名躁狂症患者和16名正常人进行了两耳分听信息并回忆信息能力的测试。文本段落的组织水平各不相同，并在有干扰和无干扰的情况下呈现。精神分裂症患者是唯一受到干扰影响的受试者，且这种影响特定于跟读而非回忆。在精神分裂症受试者中，阳性思维障碍的严重程度与三个跟读变量相关，但在躁狂症样本中则不然。进一步检查发现，在干扰下的表现与一个变量上的思维障碍具体相关：即监测他们正在跟读的段落的组织水平的能力。讨论了这些结果对确定思维障碍的原因和相关因素的研究的意义。
