Davelaar Eddy J, Barnby Joe M, Almasi Soma, Eatough Virginia
Department of Psychological Sciences, Birkbeck, University of London, London, United Kingdom.
Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom.
Front Hum Neurosci. 2018 Oct 23;12:402. doi: 10.3389/fnhum.2018.00402. eCollection 2018.
In a neurofeedback paradigm, trainees learn to willfully control their brain dynamics. How this is realized remains an open question. We evaluate the hypothesis that learning success is associated with a specific phenomenology. To address this proposal, we combined quantitative and qualitative analyses of a short neurofeedback training (NFT) session during which participants enhanced mid-frontal alpha power and were then subsequently interviewed about their experiences. We analyzed the electrophysiological data to determine learning success and classify trainees as learners and non-learners. The subjective experiences differed between the two groups and are best described along a trying-sensing continuum, with non-learners engaging effortfully with the task (e.g., "I will it [the bar] to move") whereas learners reported more sensing of their inner (e.g., "Something inside my stomach") and outer environment (e.g., "I was aware of the sound of the beeps"). In the process of piloting this mixed-method approach, we developed a classification system for the verbal reports. This system provides an explicit analytic framework which might guide future studies that aim to investigate the association between subjective experiences and NFT protocols.
在神经反馈范式中，受训者学习自主控制其脑动力学。这是如何实现的仍是一个悬而未决的问题。我们评估了学习成功与特定现象学相关的假设。为了验证这一假设，我们结合了对一次简短神经反馈训练（NFT）的定量和定性分析，在此期间参与者增强了额中α波功率，随后对他们的体验进行了访谈。我们分析了电生理数据以确定学习成功情况，并将受训者分为学习者和非学习者。两组的主观体验有所不同，最好沿着尝试 - 感知连续体来描述，非学习者努力参与任务（例如，“我要让它[横杆]移动”），而学习者报告更多地感知自身内部（例如，“我肚子里有东西”）和外部环境（例如，“我听到了哔哔声”）。在对这种混合方法进行试点的过程中，我们为口头报告开发了一个分类系统。该系统提供了一个明确的分析框架，可能会指导未来旨在研究主观体验与NFT方案之间关联的研究。
