Passive avoidance learning in individuals with psychopathy: modulation by reward but not by punishment
Passive avoidance learning in individuals with psychopathy: modulation by reward but not by punishment
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DOI：
10.1016/j.paid.2003.12.001
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发表时间：
2004-10-01
影响因子：
4.3
通讯作者：
Newman, C
中科院分区：
文献类型：
--
作者：
Blair, RJR;Mitchell, DGV;Newman, C
本研究调查了精神病态个体进行被动回避学习的能力，以及这种能力是否受到强化/惩罚程度的调节。根据《黑尔精神病态检查表修订版》（黑尔，1991年）的定义，19名精神病态个体和21名对照个体接受了一项具有分级强化程序的被动回避任务。对每个奖励数字做出反应会获得特定于该数字的点数奖励（即1分、700分、1400分或2000分）。对每个惩罚数字做出反应会失去特定于该数字的点数惩罚（即失去1分、700分、1400分或2000分）。与预测一致，精神病态个体比对照个体犯更多的被动回避错误。此外，虽然两组的表现都受到奖励程度的调节，但只有对照人群的表现受到惩罚程度的调节。研究结果参照对精神病态个体情感学习障碍的计算性解释进行了阐释。（C）2004爱思唯尔有限公司。保留所有权利。
This study investigates the ability of individuals with psychopathy to perform passive avoidance learning and whether this ability is modulated by level of reinforcement/punishment. Nineteen psychopathic and 21 comparison individuals, as defined by the Hare Psychopathy Checklist Revised (Hare, 1991), were given a passive avoidance task with a graded reinforcement schedule. Response to each rewarding number gained a point reward specific to that number (i.e., 1, 700, 1400 or 2000 points). Response to each punishing number lost a point punishment specific to that number (i.e., the loss of 1, 700, 1400 or 2000 points). In line with predictions, individuals with psychopathy made more passive avoidance errors than the comparison individuals. In addition, while the performance of both groups was modulated by level of reward, only the performance of the comparison population was modulated by level of punishment. The results are interpreted with reference to a computational account of the emotional learning impairment in individuals with psychopathy. (C) 2004 Elsevier Ltd. All rights reserved.