Centre for Biomedical Research, University of Victoria, Canada.
School of Kinesiology and Program in Neuroscience, University of Western Ontario, Canada.
Biol Psychol. 2020 Mar;151:107849. doi: 10.1016/j.biopsycho.2020.107849. Epub 2020 Jan 22.
The feedback that we receive shapes how we learn. Previous research has demonstrated that quantitative feedback results in better performance than qualitative feedback. However, the data supporting a quantitative feedback advantage are not conclusive and further little work has been done to examine the mechanistic neural differences that underlie the relative benefits of quantitative and qualitative feedback. To address these issues, participants learned a simple motor task in quantitative and qualitative feedback conditions while electroencephalographic (EEG) data were recorded. We found that participants were more accurate and had a larger neural response - the feedback related negativity - when qualitative feedback was provided. Our data suggest that qualitative feedback is more advantageous than quantitative feedback during the early stages of skill acquisition. Additionally, our findings support previous work suggesting that a reinforcement learning system within the human medial-frontal cortex plays a key role in motor skill acquisition.
我们所收到的反馈塑造了我们的学习方式。先前的研究表明，定量反馈比定性反馈能带来更好的表现。然而，支持定量反馈优势的数据并不确凿，而且很少有研究致力于探究定量和定性反馈的相对优势所基于的神经机制差异。为了解决这些问题，参与者在接受定量和定性反馈的条件下学习一项简单的运动任务，同时记录脑电图（EEG）数据。我们发现，当提供定性反馈时，参与者的准确性更高，神经反应（反馈相关负波）更大。我们的数据表明，在技能习得的早期阶段，定性反馈比定量反馈更有优势。此外，我们的研究结果支持了先前的研究，即人类内侧前额叶皮层中的强化学习系统在运动技能习得中起着关键作用。
