Krigolson Olav E, Holroyd Clay B
Department of Psychology, University of Victoria, Victoria, British Columbia, Canada.
Psychophysiology. 2007 Jul;44(4):586-95. doi: 10.1111/j.1469-8986.2007.00523.x. Epub 2007 Apr 16.
We have recently provided evidence that an error-related negativity (ERN), an ERP component generated within medial-frontal cortex, is elicited by errors made during the performance of a continuous tracking task (O.E. Krigolson & C.B. Holroyd, 2006). In the present study we conducted two experiments to investigate the ability of the medial-frontal error system to evaluate predictive error information. In two experiments participants used a joystick to perform a computer-based continuous tracking task in which some tracking errors were inevitable. In both experiments, half of these errors were preceded by a predictive cue. The results of both experiments indicated that an ERN-like waveform was elicited by tracking errors. Furthermore, in both experiments the predicted error waveforms had an earlier peak latency than the unpredicted error waveforms. These results demonstrate that the medial-frontal error system can evaluate predictive error information.
我们最近提供了证据表明，错误相关负波（ERN），一种在内侧前额叶皮层产生的事件相关电位成分，是由连续追踪任务执行过程中出现的错误引发的（O.E. 克里戈尔森和C.B. 霍洛伊德，2006年）。在本研究中，我们进行了两项实验，以调查内侧前额叶错误系统评估预测性错误信息的能力。在两项实验中，参与者使用操纵杆执行基于计算机的连续追踪任务，其中一些追踪错误是不可避免的。在两项实验中，这些错误中有一半之前有一个预测性线索。两项实验的结果均表明，追踪错误引发了类似ERN的波形。此外，在两项实验中，预测错误波形的峰值潜伏期比未预测错误波形更早。这些结果表明，内侧前额叶错误系统可以评估预测性错误信息。
