|Alternative Title||The Intervention Effect and Neural Mechanisms of Therapeutic Metaphor on Symptoms of Anxiety Among Postgraduate students|
|Place of Conferral||中国科学院心理研究所|
|Keyword||焦虑 治疗性隐喻 认知行为治疗 核磁共振 认知重构|
Compared with the general population, competing academic, high expectations and uncertain outcomes make graduate student much more likely to experience anxiety symptoms. The efficacy of cognitive behavioural therapy (CBT) for anxiety is empirically supported. The use of metaphors in cognitive restructuring could help the clients acquire the therapy information more easily and maximize the effect of therapy information. This study aimed to examine whether therapeutic metaphor would produce great intervention effect in treating anxiety symptoms among graduate student and its mental and neural mechanism. Specifically, this dissertation was consisted of two studies: first, the fMRI task: metaphor-based micro-counseling dialogues were applied for intervention in laboratory scenes. Then, four sessions of CBT-based metaphorical course were carried out in natural situations, and the regression effect between the therapeutic metaphor-activated brain activity and the improvement of anxiety symptoms in natural scenes was examined in the second study. The details were as followed:
In study 1，in order to examine the intervention effect of therapeutic metaphor in anxiety symptoms and its mental and neural mechanism, metaphor-based micro-counseling dialogues were applied for intervention in laboratory scenes. 62 anxious graduate students were recruited, and randomly divided into two groups. These two groups were respectively received metaphorical restructuring solution (N=31，Metaphor group), literal restructuring solution (N=31，Non-metaphor group) after multiple problem solving scenarios in the process of fMRI scanning. The indicators were measured before, after and one week after the fMRI scanning. The results showed that the metaphor group induced the higher insight experience while reading the metaphorical solutions and had advantages to enhance the long-term memory than non-metaphor group one week after the fMRI task. Compared with non-metaphorical solutions, metaphorical solutions induce higher activity in bilateral hippocampus, left inferior frontal gyrus and right temporal pole. Just after the fMRI task, the general self-efficacy was get improving, the level of mental distress continued to decline within one week after the intervention, and the activation of left hippocampus and left inferior frontal gyrus in the task could predict the improvement of self-efficacy and the relief of psychological distress, respectively.
In study 2: to explore whether group-CBT based therapeutic metaphor was superior to non-metaphorical courses and whether therapeutic metaphor-activated brain activity could be used to predict the improvement of anxiety symptoms, four sessions of CBT-based metaphorical course were carried out in natural situations. Four subjects was dropped put after they finished the study 1，and the grouping remained unchanged. We tried to carry out metaphorical CBT course, non-metaphorical CBT course intervention on metaphor group (n=28) and non-metaphorical group (n=30), respectively. The courses consist of 4 sessions: once
a week, totally four weeks. In this study, the relevant indicators were recorded before, after, one week after, one month after and three months after the intervention. The results showed that along with the course, the anxiety scores gradually decreased, the insight experience gradually increased; only in the metaphor group, the insight experience may had a positive effect on the remission of anxiety. The improvement of general self-efficacy and stress perception could be used to predict the improvement of anxiety symptoms up to 3 months; insight scores in fMRI tasks could predict the changes in anxiety scores after CBT interventions. The activation of the hippocampus, inferior frontal gyrus, and temporal pole during the fMRI task can be used to predict changes in anxiety scores one month after the intervention or even three months.
All the evidence above suggests that therapeutic metaphor was efficient in anxiety symptoms relief whether using cognitive reconstruction fMRI task in laboratory or CBT courses in natural-scene scenario, and the mental and neural indicators in fMRI task could predict the of subsequent CBT intervention effect.
|张晓雨. 治疗性隐喻干预研究生焦虑症状效果及神经机制[D]. 中国科学院心理研究所. 中国科学院心理研究所,2020.|
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