Dept. of Psychological & Brain Sciences, 1101 E Tenth St., Bloomington, IN 47405, USA.
Neuroimage. 2011 Jul 15;57(2):314-5. doi: 10.1016/j.neuroimage.2011.04.028. Epub 2011 Apr 22.
A paper by Grinband et al. (this issue) argues that dorsal medial prefrontal cortex (mPFC) activity reflects time-on-task rather than conflict or error likelihood. In this commentary, Brown suggests that the findings are consistent with a new model in which mPFC learns to predict the nature and timing of action outcomes. The new model predicts that time-on-task effects coexist with distinct error likelihood effects, a result which is consistent with other recent findings from fMRI and monkey neurophysiology.
格林班德等人的一篇论文（本期）认为，背内侧前额叶皮层（mPFC）的活动反映了任务时间，而不是冲突或错误的可能性。在这篇评论中，布朗认为这些发现与一个新模型一致，该模型认为 mPFC 学会预测行动结果的性质和时间。新模型预测任务时间效应与明显的错误可能性效应并存，这一结果与来自 fMRI 和猴子神经生理学的其他最近发现一致。
