Moritz Steffen, Woodward Todd S, Cuttler Carrie, Whitman Jennifer C, Watson Jason M
Klinik fur Psychiatrie und Psychotherapie, Universitatsklinikum Hamburg-Eppendorf, Hamburg, Germany.
Neuropsychology. 2004 Apr;18(2):276-83. doi: 10.1037/0894-4105.18.2.276.
In prior studies, it was observed that patients with schizophrenia show abnormally high knowledge corruption (i.e., high-confident errors expressed as a percentage of all high-confident responses were increased for schizophrenic patients relative to controls). The authors examined the conditions under which excessive knowledge corruption occurred using the Deese-Roediger-McDermott paradigm. Whereas knowledge corruption in schizophrenia was significantly greater for false-negative errors relative to controls, no group difference occurred for false-positive errors. The groups showed a comparable high degree of confidence for false-positive recognition of critical lure items. Similar to findings collected in elderly participants, patients, but not controls, showed a strong positive correlation between the number of recognized studied items and false-positive recognition of the critical lure.
在先前的研究中，观察到精神分裂症患者表现出异常高的知识腐败（即，相对于对照组，精神分裂症患者以所有高置信度反应的百分比表示的高置信度错误增加）。作者使用迪ese-罗迪格-麦克德莫特范式研究了过度知识腐败发生的条件。相对于对照组，精神分裂症患者的假阴性错误导致的知识腐败显著更大，但假阳性错误没有组间差异。两组对关键诱饵项目的假阳性识别表现出相当高的置信度。与在老年参与者中收集的结果相似，患者而非对照组在识别出的学习项目数量与关键诱饵的假阳性识别之间表现出强烈的正相关。
