Università di Bologna.
J Cogn Neurosci. 2012 Oct;24(10):2070-9. doi: 10.1162/jocn_a_00266. Epub 2012 Aug 20.
Recent brain imaging studies have implicated the rostral ACC (rACC) in the resolution of conflict between competing response tendencies in emotional task contexts, but not in neutral task contexts. This study tested the hypothesis that the rACC is necessary for such context-specific conflict adaptation. To this end, a group of patients with lesions of the rACC, a group of brain-damaged controls, and a group of normal controls classified the emotional expression (emotional task context) or the gender (neutral task context) of faces while ignoring congruent and incongruent words written across the faces. In all three groups, performance was worse with incongruent as compared with congruent stimuli in both task contexts. In the two control groups, this congruency effect was reduced following incongruent trials in both task contexts. By contrast, the rACC group displayed such conflict adaptation only in the neutral, but not in the emotional, task context. These results show that the rACC is necessary for conflict adaptation in emotional but not in neutral task contexts and suggest that the regulation of behavior is context specific.
最近的大脑成像研究表明，在前扣带皮层（ACC）在解决情绪任务环境中竞争反应倾向之间的冲突方面起作用，但在中性任务环境中不起作用。本研究检验了 rACC 对于这种特定于上下文的冲突适应是必要的假设。为此，一组 rACC 损伤患者、一组脑损伤对照组和一组正常对照组在忽略跨脸书写的一致和不一致的词的情况下，对面部的表情（情绪任务环境）或性别（中性任务环境）进行分类。在所有三组中，与一致刺激相比，在两种任务环境中，不一致刺激的表现都更差。在两个对照组中，这种一致性效应在两种任务环境中都在不一致试验后减少。相比之下，rACC 组仅在中性任务环境中表现出这种冲突适应，而不是在情绪任务环境中。这些结果表明，rACC 对于情绪任务环境中的冲突适应是必要的，但对于中性任务环境中的冲突适应则不是，这表明行为的调节是特定于情境的。
