Objective:The present study mainly focused on the effect of prior decision-making task difficulty on subsequent executive control.Methods:Forty healthy subjects were randomly assigned to either high-conflict moral-personal dilemmas group or low-conflict non-moral scenarios group.The performance differences of the Multi-Source Interference Task (MSIT) following different decision-making tasks were investigated.Results:Results showed a worse performance in the subsequent MSIT for participants making moral-personal judgments than those making non-moral ones.Moreover,a relatively larger difference was found in the most effort-demanding condition of the MSIT,and a considerably worse performance was made by participants making moral judgments than non-moral ones.Conclusions:The difficulty of prior decision-making task would greatly influence the subsequent performance of executive control.

目的:探索高/低冲突不同的决策任务对其后执行控制的影响。方法:40名被试随机分配到高冲突涉及个人情感的道德两难任务组和低冲突与道德无关的决策任务组,而后分别考察两组人执行控制成绩的差异。结果:相比做出与道德无关决策的被试,完成涉及个人情感的道德两难决策任务后的被试在后续的多源冲突任务中表现更差。而且,在多源冲突任务难度最大的条件下,组间差异更大,完成涉及个人情感的道德两难决策任务的被试表现更加不如完成与道德无关决策的被试。结论:该研究表明冲突不同的决策任务对其后执行控制影响不同,冲突越大,其后的执行控制成绩越差。该研究有助于进一步加深我们对道德与非道德决策差异以及决策与执行控制关系的理解。

目的:探讨短期整体身心调节法练习者的全身皮肤电导反应特点.方法:采用单因素完全随机实验设计,将68名在校大学生分为整体身心调节组和放松组,分别进行为期10天的整体身心调节训练和经典的肌肉放松训练,并于训练前和训练结束后,测试两组学生身体7个分支的皮肤电导反应.结果:训练前,大学生前3支皮肤电导反应大于后4支;训练10天后,与训练前相比,整体身心调节训练组第1、2支皮肤电导反应显著减小,7个分支的皮肤电导反应出现均衡的规律;放松训练组学生身体7个分支皮肤电导反应变化不显著.结论:短期整体身心调节法形成了全身皮肤电导反应的均衡,可能反映短期整体身心调节法的整体身心相互作用原理.

Months of motor learning or working memory training induce experience-dependent structural changes in adult grey matter associated with tasks demand,however,whether meditation based mental training produces the similar change is largely unknown.We test this hypothesis using one form of mental training,the integrative body mind training(IBMT)for 2-weeks of consecutive practice in comparison to the same amount of relaxation training(RT).Our results indicated no significant changes in grey matter were detected using voxel-based morphometry analysis in both IBMT and RT.Further research is required to replicate in a large sample size,and to test if longer training could induce this neuroplasticity.

<正>目的:考察难度不同的决策任务对其后的执行控制能力的影响,揭示了决策的难易程度与后续的执行控制表现成反比的效应。