摘要
目的通过结合静息态功能磁共振成像技术和连续风险决策任务,探究太极运动者大脑的低频振幅与其情绪控制能力的关系。材料与方法在静息态数据扫描后,太极运动者[太极运动时间:(10.44±5.48)年]完成了连续风险决策任务。在任务中,太极运动者进行了80试次的连续风险决策,并对每一试次的决策结果进行情绪评分。另外,太极运动者还填写了正念注意觉知量表和五因素冥想问卷,从而获得他们的冥想分数。在数据分析过程中,首先基于情绪评分进行了回归分析,自变量为客观结果,因变量为情绪评分。在回归分析中获得的回归系数作为被试在连续风险决策任务中情绪控制能力的指标;回归系数越小,对客观结果的敏感程度越低(情绪起伏越小),即对情绪的控制能力越强。然后使用DPARSFA和SPM8处理静息态数据,计算全脑低频振幅,并将其分别与被试冥想分数和情绪控制能力作相关分析。结果太极运动者正念注意觉知量表的得分与其额中回的低频振幅值呈负相关(r=-0.513,P<0.01);额中回的低频振幅值与其情绪控制能力呈正相关(r=0.688,P<0.01)。结论在静息状态下,太极运动者前额叶的低频振幅与其冥想程度有关,并且还能预测他们在连续风险决策任务中的情绪控制能力。
Objective:By combining the resting-state functional magnetic resonance imaging(fMRI)technique and the sequential risk taking task,the current study aimed to investigate the relationship between the amplitude of low-frequency fluctuation(ALFF)and emotion control ability in Tai Chi exercisers.Materials and Methods:After the resting state scan,the Tai Chi exercisers were asked to finish the sequential risk taking task.At the end of each trial in the task,they rated how they felt for the outcome of each trial on a9-point scale.Moreover,they were asked to fill out the five facet mindfulness questionnaire and mindful attention awareness scale to get scores of meditation.In the processing of behavioral data analysis,we performed a regression analysis for each participant,in which the emotional ratings were defined as dependent variables and the objective results as independent variables.The regression coefficient was regarded as the index of participant’s emotion control ability.Specifically,the smaller regression coefficient means the stronger emotion control ability.Then,DPARSFA and SPM8were used to process the resting-state data and get the ALFF of the whole brain.At last,the correlation analyses were preformed between the brain index(ALFF)and behavioral data(the score of scales and regression coefficient,i.e.the emotion control ability).Results:The scores of mindful attention awareness scale were negatively correlated with the ALFF in middle frontal gyrus(r=-0.513,P<0.01).Furthermore,Tai Chi exercisers’ALFF in middle frontal gyrus were positively correlated with their emotion control ability(r=0.688,P<0.01).Conclusions:In the resting state,the ALFF in prefrontal lobe of Tai Chi exercisers were related to the meditation scores,which could also predict Tai Chi exercisers’emotional control ability in the sequential risk taking task.
作者
吴雨嫣
刘志远
杨光
郭秀艳
WU Yu-yan;LIU Zhi-yuan;YANG Guang;GUO Xiu-yan(Normal University,Shanghai 200062,China;School of Physics and Materials Science,East China Normal University,Shanghai 200062,China;School of Psychology and Cognitive Science,East China Normal University,Shanghai 200062,China;Shanghai Key Laboratory of Brain Functional Genomics,East China Normal University,Shanghai 200062,China;National Demonstration Center for Experimental Psychology Education,East China Normal University,Shanghai 200062,China)
出处
《磁共振成像》
CAS
CSCD
2018年第12期936-942,共7页
Chinese Journal of Magnetic Resonance Imaging
基金
国家社会科学基金重点项目(编号:14AZD106)
全国教科规划青年项目(编号:CBA160186)
华东师范大学教育学高峰学科建设项目~~
关键词
太极运动
前额叶
低频振幅
情绪控制能力
磁共振成像
Tai Chi
Prefrontal lobe
Amplitude of low-frequency fluctuation
Emotion control ability
Magnetic resonance imaging
