Li Guo, Cai Xueli, Wang Yifeng
Institute of Brain and Psychological Sciences, Sichuan Normal University, Chengdu, China.
School of Psychology, South China Normal University, Guangzhou, China.
CNS Neurosci Ther. 2024 Dec;30(12):e70157. doi: 10.1111/cns.70157.
Attentional bias modification training (ABMT) is commonly employed to regulate negative attentional bias (NAB) and, in turn, to prevent or alleviate depressive symptoms. Recent advancements in attention switch theory have facilitated the development of a novel training paradigm that may enhance the efficacy of such interventions.
A total of fifty-seven college students were assigned to two groups: one exhibiting NAB and the other without. Both groups underwent training with a novel paradigm integrating theta rhythm with the traditional dot-probe task (DPT). The DPT was also administered as a pre- and post-test measure.
For individuals with NAB, rhythmic DPT effectively alleviates their NAB. Additionally, within the training procedure's DPT, flashing negative stimuli elicits faster responses when the probe appears at the positive stimulus' location. Baseline attention scores can negatively predict changes in subsequent corresponding attentional performance.
This study presents a novel training paradigm-the theta rhythm-based DPT-that effectively modifies NAB. The mechanism underlying this intervention may be driven by positive salient stimuli at the critical trough, facilitating the switch of attention from negative to positive stimuli.
注意力偏向矫正训练（ABMT）通常用于调节负性注意力偏向（NAB），进而预防或减轻抑郁症状。注意力切换理论的最新进展推动了一种新型训练范式的发展，这种范式可能会提高此类干预措施的效果。
总共57名大学生被分为两组：一组表现出NAB，另一组没有。两组都采用了一种将θ节律与传统点探测任务（DPT）相结合的新型范式进行训练。DPT也作为训练前和训练后的测量手段。
对于有NAB的个体，有节律的DPT有效地减轻了他们的NAB。此外，在训练过程的DPT中，当探测刺激出现在正性刺激位置时，闪烁的负性刺激会引发更快的反应。基线注意力分数可以负面预测随后相应注意力表现的变化。
本研究提出了一种新型训练范式——基于θ节律的DPT——它能有效改变NAB。这种干预的潜在机制可能是由关键波谷处的正性显著刺激驱动的，促进了注意力从负性刺激向正性刺激的切换。
