Association study between two novel single nucleotide polymorphisms and sporadic Parkinson's disease in Chinese Han population

Mirror neurons are thought to facilitate emotion processing, but it is unclear whether the valence of an emotional presentation (positive or negative) can influence subsequent mirror neuron activity. Participants completed a transcranial magnetic stimulation experiment that involved stimulation of the primary motor cortex, and electromyography recording from contralateral hand muscles. This was performed while participants viewed videos of either a static hand or a transitive hand action preceded by either a positive or negative stimulus. Corticospinal excitability facilitation during action observation was significantly greater following the presentation of negative (relative to positive) stimuli; this was evident for the first dorsal interosseous muscle (which was central to the observed grasp), but not for the abductor digiti minimi muscle. This study provides evidence that emotional valence can modulate mirror neuron activity, which may reflect an adaptive mechanism.     

大学生颞下颌关节紊乱病与心理因素相关性的研究

目的:探讨大学生中颞下颌关节紊乱病(TMD)与心理因素的关系.方法:以在校大学生为目标人群,选取400例作为研究对象,进行初步筛查,再从中选出TMD患者和正常人各30例进行对照研究,对所得数据进行统计学分析.结果:大学生TMD患病率56.68%(212/374).病例组和对照组90项症状自评量表(SCL-90)的总均分...