Sorbonne Université, UPMC Univ Paris 06, Faculté de Médecine Pitié-Salpêtrière, Paris, France; INSERM, U 1127, Paris, France; Institut du Cerveau et de la Moelle épinière, ICM, PICNIC Lab, Paris, France.
AP-HP, Groupe hospitalier Pitié-Salpêtrière, Department of Neurosurgery, Paris, France.
Cortex. 2021 Jun;139:1-11. doi: 10.1016/j.cortex.2021.02.018. Epub 2021 Mar 6.
The free choice paradigm constitutes one of the most explored paradigms of cognitive dissonance research. Typically, once asked to choose between two similarly rated items, subjects subsequently exhibit an increased preference for chosen items and a decreased preference for rejected ones. Recent studies have demonstrated that such choice-induced preference change (CIPC) occur exclusively for remembered choices, suggesting a mechanism that ensures subjective coherence across time. In the present work we predicted that in order for CIPC to occur, not only must past choices be remembered, but executive networks responsible for detecting and solving conflicts must also be functioning. We confirmed this prediction in a group of patients with frontal lobe lesions. While non-dysexecutive (NODYS) patients behaved as their matched controls did, dysexecutive (DYS) patients failed to change their subjective preferences even when they could remember their previous choices. We have therefore demonstrated the crucial role of executive functions mediated by the frontal lobe in cognitive dissonance resolution.
自由选择范式是认知失调研究中最具探索性的范式之一。通常情况下，一旦被要求在两个评价相似的项目之间做出选择，被试者随后会表现出对所选项目的偏好增加，对被拒绝项目的偏好减少。最近的研究表明，这种选择引起的偏好变化（CIPC）仅发生在被记住的选择中，这表明有一种机制可以确保随着时间的推移主观上的一致性。在本研究中，我们预测，为了使 CIPC 发生，不仅必须记住过去的选择，而且还必须有负责检测和解决冲突的执行网络在起作用。我们在一组额叶损伤的患者中证实了这一预测。虽然非执行障碍（NODYS）患者的表现与他们的匹配对照组相同，但执行障碍（DYS）患者即使能够记住他们之前的选择，也未能改变他们的主观偏好。因此，我们证明了由额叶介导的执行功能在认知失调解决中的关键作用。
