Department of Clinical Psychological Science, Maastricht University, MD, The Netherlands.
Department of Psychology, Utrecht University, TC, The Netherlands.
Eur J Pain. 2018 Jan;22(1):181-190. doi: 10.1002/ejp.1114. Epub 2017 Sep 26.
Fully understanding attention to pain requires taking into account the motivational context. Both pain- and (nonpain) goal-related information attracts attention. An intriguing question is which attentional bias prevails when pain- and goal-related information co-occurs? Reduced attentional bias towards pain- and goal-related information was predicted when the other competing information was presented simultaneously. Moreover, trait attentional control was predicted to be associated with stronger attentional bias towards goal-related information particularly in the presence of pain-related information.
Attentional competition between pain- and (nonpain) goal-related information was measured in ninety participants using a dot-probe task presenting two stimuli (pain-related, goal-related or neutral) simultaneously. Reaction time was the dependent variable. Dot-probe trials alternated with goal trials to induce a temporary goal. Trait attentional control was measured with the attentional control scale.
For pain-related neutral stimulus pairs, participants responded fastest when probes appeared on the same, compared to the opposite, location as the pain-related stimulus. For pain-goal-related stimulus pairs, responses were fastest when probes appeared on the same, compared to the opposite, location as the goal-related stimulus. Higher trait attentional control was associated with faster responding when probes appeared on the same, compared to the opposite, location as the goal-related stimulus. Unpredicted, this effect was irrespective of the co-occurring stimulus (neutral vs. pain-related).
The findings suggest that the unintentional allocation of attention towards events related to a temporary (nonpain) goal prevails over attentional bias to events predicting pain. Trait attentional control predicts stronger attentional allocation towards events related to a temporary goal.
These findings indicate that treatment interventions facilitating goal pursuit in patients with chronic pain are beneficial in reducing attentional biases towards pain-related events.
全面理解注意力对疼痛的作用需要考虑到动机背景。疼痛和(非疼痛)目标相关的信息都能吸引注意力。一个有趣的问题是,当疼痛和目标相关的信息同时出现时,哪种注意力偏向占主导地位?当同时呈现其他竞争信息时,预计对疼痛和目标相关信息的注意力偏向会减少。此外,特质注意力控制预计与对目标相关信息的注意力偏向更强相关,特别是在存在与疼痛相关的信息时。
在 90 名参与者中使用点探测任务测量疼痛和(非疼痛)目标相关信息之间的注意力竞争,同时呈现两个刺激(疼痛相关、目标相关或中性)。反应时间是因变量。点探测试验与目标试验交替进行,以暂时诱导目标。特质注意力控制用注意力控制量表测量。
对于疼痛相关的中性刺激对,当探针出现在与疼痛相关刺激相同的位置时,参与者的反应最快。对于疼痛-目标相关刺激对,当探针出现在与目标相关刺激相同的位置时,反应最快。特质注意力控制越高,当探针出现在与目标相关刺激相同的位置时,反应越快。出乎意料的是,这种效应与同时出现的刺激(中性与疼痛相关)无关。
研究结果表明,对与临时(非疼痛)目标相关的事件的无意注意力分配优先于对预测疼痛的事件的注意力偏向。特质注意力控制预测对与临时目标相关的事件的注意力分配更强。
这些发现表明,促进慢性疼痛患者追求目标的治疗干预措施有利于减少对疼痛相关事件的注意力偏向。