Patients with schizophrenia demonstrate dissociation between affective experience and motivated behavior
Patients with schizophrenia demonstrate dissociation between affective experience and motivated behavior
复制标题
DOI：
10.1037/0021-843x.116.2.268
复制
发表时间：
2007-05-01
影响因子：
4.6
通讯作者：
Gold, James M.
中科院分区：
文献类型：
--
作者：
Heerey, Erin A.;Gold, James M.
精神分裂症患者和健康个体之间自我报告的情绪体验没有差异，这表明精神分裂症的快感缺乏反而反映了情感与动机行为的脱钩。在两种行为条件下，精神分裂症参与者和健康参与者能够在刺激存在时延长或减少接触刺激，或根据内部表征改变未来接触刺激的可能性。他们还提供了情感体验的自我报告。与对照参与者相比，患者的行为和评分之间的对应性较弱。当患者根据内部刺激表征而不是诱发刺激表征做出反应时，效果会放大。这些数据表明，精神分裂症患者的动机缺陷反映出将经验转化为行动的能力存在问题。
Self-reported emotional experience does not differ between patients with schizophrenia and healthy individuals, suggesting that the anhedonia in schizophrenia instead reflects decoupling of affect from motivated behavior. In 2 behavioral conditions, participants with schizophrenia and healthy participants were able to prolong or decrease exposure to stimuli while stimuli were present or alter the likelihood of future exposure to stimuli on the basis of internal representations. They also provided self-reports of affective experience. Patients showed weaker correspondence between behavior and ratings than did comparison participants. The effect was amplified when patients responded on the basis of internal rather than evoked stimulus representations. These data suggest that the motivational deficits in schizophrenia reflect problems in the ability to translate experience into action.