Williams R M, Hemsley D R, Denning-Duke C
Br J Soc Clin Psychol. 1976 Feb;15(PT 1):73-83. doi: 10.1111/j.2044-8260.1976.tb00008.x.
A predicition made by Broen (1968) regarding the performance of acute and chronic non-paranoid schizophrenics on measures of dominant verbal response bias was tested in a group of 40 hospitalized schizophrenic patients. A subgroup of 10 chronic patients were found to show an abnormal dominant response bias on two different language tasks and on one task showed a bias significantly greater than that shown by a group of 10 acute patients matched on verbal IQ and rated symptomatology. A correlational analysis of the bias scores of the total sample in relation to three indices of chronicity also showed a trend in the predicted direction of a greater dominant response bias with increasing chronicity. The data are consistent with Broen's (1968) theory of dominant response bias as a learned defence against aversive response interference in acute schizophrenia.
布伦（1968年）对急性和慢性非偏执型精神分裂症患者在显性言语反应偏差测量方面的表现所做的一项预测，在一组40名住院精神分裂症患者中进行了检验。结果发现，10名慢性患者组成的亚组在两项不同的语言任务中表现出异常的显性反应偏差，并且在一项任务中表现出的偏差明显大于在言语智商和症状评分上与之匹配的10名急性患者组成的组。对整个样本的偏差分数与三个慢性指标进行的相关分析也显示出一种趋势，即随着慢性程度的增加，显性反应偏差朝着预测的方向增大。这些数据与布伦（1968年）关于显性反应偏差的理论一致，该理论认为显性反应偏差是急性精神分裂症中针对厌恶反应干扰而习得的一种防御机制。
