Burgess P W, Shallice T
Department of Psychology, University College London.
Cortex. 1996 Jun;32(2):241-59. doi: 10.1016/s0010-9452(96)80049-9.
Seventy-seven patients with different cerebral lesions were tested on a rule-detection task where the stimuli were designed in such a way as to minimize the activation of pre-existing schemata. Patients with lesions involving the frontal lobes were poorer at achieving set than patients with lesions elsewhere. In addition, the anteriorly-lesioned group showed a greater tendency to guess and were more likely to abandon a correct rule once it had been attained, but there were no differences between the groups in incidence of perseverative responses. Various plausible explanations of these results are examined, with the most favoured account suggesting that anterior patients show an exaggerated willingness to adopt bizarre hypotheses.
77名患有不同脑部损伤的患者接受了一项规则检测任务，其中刺激的设计方式旨在尽量减少预先存在的图式的激活。额叶受损的患者在达成设定目标方面比其他部位受损的患者表现更差。此外，额叶前部受损的组表现出更大的猜测倾向，并且一旦获得正确规则就更有可能放弃，但是在持续反应的发生率上两组之间没有差异。对这些结果进行了各种合理的解释，最受青睐的解释表明额叶前部受损的患者表现出过度愿意采用奇异假设的倾向。
