ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 2016, Vol. 48 ›› Issue (12): 1499-1506.doi: 10.3724/SP.J.1041.2016.01499

• 论文 •    下一篇

用药动作线索诱发海洛因戒断者的镜像神经活动:一项fMRI研究

苏得权1; 曾 红1; 陈 骐2; 叶浩生1   

  1. (1广州大学心理系; 广州大学心理与脑科学研究中心, 广州 510003) (2华南师范大学心理学院, 广州 510631)
  • 收稿日期:2015-09-14 发布日期:2016-12-24 出版日期:2016-12-24
  • 通讯作者: 叶浩生, E-mail: yehaosheng0817@163.com
  • 基金资助:

    国家自然科学基金(31271113)资助。

Observation drug using action elicited mirror neuron reactivity in the abstinent heroin users: An fMRI study

SU Dequan1; ZENG Hong1; CHEN Qi2; YE Haosheng1   

  1. (1 Department of Psychology, Guangzhou University, Guangzhou 510003, China) (2 School of Psychology, South-China Normal University, Guangzhou 510631, China)
  • Received:2015-09-14 Online:2016-12-24 Published:2016-12-24
  • Contact: YE Haosheng, E-mail: yehaosheng0817@163.com

摘要:

相关线索能够诱发药物依赖者的心理渴求, 而健康人不会对相关线索产生心理渴求。15名海洛因成瘾者和12名没有任何物质滥用的健康被试参与实验, 收集了他们在观看相关线索与对照线索时的脑神经活动。结果发现, 药物线索能够诱发戒断者更多脑区的活动, 包括扣带回和楔前叶。两组被试在对照动作线索刺激诱发作用下, 其颞叶、顶叶均出现了较为一致的活动。在用药动作线索诱发作用下, 戒断组双侧颞中回、双侧顶下小叶、左侧顶上小叶和右侧额下回显示出显著活动, 并且与对照动作线索激活脑区一致; 健康组被试除枕叶−颞叶联合区外, 没有出现显著的脑区活动。以上结果表明, 用药动作线索诱发了海洛因戒断者颞中回、顶下小叶、额下回等镜像神经系统的活动, 这些脑区对不同类型的相关线索十分敏感, 它们可能通过对用药动作的心理模拟, 参与了用药动作线索的快速自动化加工。

关键词: 心理渴求, 镜像神经, 具身认知

Abstract:

The cue-provoked craving is one of the main reasons for psychological dependence. The current study applied cue reactivity paradigm to find out the activation of whole brain in the drug dependent individual’s brain when they exposed in the related cues. 15 abstinent heroin dependent individuals (AHD) and 12 no-drug use health participants (NDP) involved in the experiment. We conducted 2 (groups: abstinent drug dependent group, no-drug use group) × 2 (related condition: related cue, unrelated cue) × 2 (cue types: static object, action) experiment design. They observed the cue-related stimuli and the counterpart cue stimuli while lying in a 3.0T Siemens MRI scanner. Images for heroin-related stimuli contained heroin injection, preparation, and paraphernalia. Neutral images (control) were composed of daily life objects and behavior. We explored and analysis the neuron activation of cue-induced reactivity between the two groups. Conjunction analysis of action related cue and unrelated cue, to explore the difference activity of mirror neuron system within the two conditions and between AHD and NDP. Multiple t-contrasts between related-cues and unrelated-cues were conducted to find out the cue neuronal reactivity which was accompanied with craving. The result showed that drug-related cues activated more brain regions than the corresponding cues which include the occipital-temporal cortex, superior parietal lobule and inferior parietal lobule, orbit-frontal cortex, anterior cingulate cortex and posterior cingulate, hippocampus, thalamus and midbrain for the AHDs. The comparison between activated brain area under drug and “C-drug” cues showed more activation in right hippocampus, precuneus and the posterior cingulate activation for abstinent group. The hemodynamic response in temporal and parietal lobe correlated was consistent when we performed t-contrasts between “C-action” and “C-drug” condition for both of the two group subjects. Abstinent subjects evoked the bilateral middle temporal gyrus, bilateral inferior parietal lobule, the left superior parietal lobule and the right inferior frontal gyrus when they watched drug taking pictures and usual manual motion. The conjunction analysis showed that conjoined action versus drug and “C-action” versus “C-drug” contrast was executed; hippocampus and midbrain were detected for abstinent group. The health control group only evoked occipital-temporal cortex when compared between under “C-action” and “C-drug” cues. In particular, neither hippocampus nor midbrain had an evident response after the same analysis at the health counterpart group. The result of the study indicated that abstinent drug dependent individuals still have craving for the drugs after a period of abstinent symptoms disappearing. The craving would be induced by the related cues which accompany with the activation of medium temporal gyrus, inferior parietal lobule, and inferior frontal gyrus and so on, which belong to mirror neuron system. The area was susceptible to different drug related cues and they might involve in the mental simulation of drug use activation which participates in quick automation processing to drug related cues. Anterior cingulate cortex, posterior cingulated cortex, hypothalamus, hypothalamus, mesocerebrum along with the limbic system play the important role in the cue-induced craving.

Key words: cue-elicited craving, mirror neuron system, embodied cognitive