心率变异性在心身疾病和情绪障碍研究中的应用

心率变异性的频谱成分可单独反映交感神经和副交感神经活动的影响。高频（HF）是由迷走神经单独介导；低频（LF）受迷走神经和交感神经共同调制，但主要反映交感神经的活动性 。此指标可对高血压、冠心病和月经前期烦躁等心身障碍进行评价。该文还探讨了它用于情绪研究的价值，并认为在不同情绪体验期间的自主神经活动有多种搭配模式，正常人与情绪障碍者之间以及情绪障碍（抑郁、焦虑、恐怖、强迫）患者在自主神经活动方面可能存在显著差别     

认知评价对主观情绪感受和生理活动的作用

围绕认知评价对情绪的作用, 针对传统认知评价实验方法的缺陷, 本研究改进认知评价的操作方法, 以情绪片段为实验材料, 以事先的评价背景替代与观看同步的评价策略, 以生理指标与情绪自评反映情绪变化, 考察41名大学生的认知评价对负性情绪的影响。结果发现, 持有利于情绪调节评价的个体, 负性情绪感受降低, 皮肤电反应减弱, 但心率无变化。研究表明, 认知评价影响个体的主观情绪体验, 并在一定程度上抑制负性情绪所致的生理唤起的增高。     

负性情绪抑制对社会决策行为的影响

利用心理生理实验法, 通过将情绪抑制操作引入最后通牒博弈实验范式, 探讨负性情绪抑制的主观情绪体验、生理反应及其对社会决策行为的影响。以40名大学生为被试, 采用MP150型16导生理记录仪记录皮肤电反应和心率。实验为2 (组别：情绪抑制组、自然观看组) × 2 (性别：男、女) × 2 (博弈对手：人、计算机) × 4 (分配方案：￥5：￥5、￥7：￥3、￥8：￥2、￥9：￥1)的混合设计, 其中组别和性别为被试间因素, 博弈对手和分配方案为被试内因素。结果发现：(1)对负性情绪进行抑制没有减少被试相应的主观体验, 情绪抑制使皮肤电反应性增强; (2)负性情绪抑制的主观体验和生理反应不存在性别差异; (3)在面对不公平的分配方案时, 情绪抑制组被试比自然观看组更倾向于拒绝接受。结果表明在最后通牒博弈中,情绪抑制影响回应者的行为反应,使他们更倾向于做出不理智的决策。     

Action versus state orientation moderates the relation between executive function task performance and resting heart rate variability

Despite a considerable rationale for a relationship between executive functions (EFs) and resting heart rate variability based on the neurovisceral integration model, meta-analyses reveal relatively small effect sizes. This study aims to evaluate this relationship in three EF tasks by taking task characteristics and implicit affect and attention regulation measured by action-state orientation into account. Analyzing 154 participants (M = 23.56 years; SD = 3.14) indicated that the relationship was moderated by action-state orientation. However, the Johnson-Neyman test only found a relationship for state-oriented individuals, which also differed in the direction between demanding and low-demanding tasks. Therefore, this study cannot fully confirm the neurovisceral integration model. Implications for future research are discussed.     

工作记忆刷新训练改善抑郁倾向大学生情绪调节能力的HRV证据

根据流调中心用抑郁量表(CES-D)和贝克抑郁量表(BDI-II-C)的得分情况招募健康被试20例, 抑郁倾向被试40例, 以自愿参加的分组方式将抑郁倾向被试分为工作记忆刷新训练组和对照组, 每组20例。对训练组进行为期20天的工作记忆刷新训练, 对照组不做处理。记录各组被试在前后测的刷新功能以及在情绪调节任务中量表的得分情况, 并收集各组被试在5种实验条件下的心率变异性(HRV)的频域指标值, 结果发现：前测时抑郁倾向个体的HF-HRV显著低于健康个体的平均水平。经过工作记忆训练, 后测的抑郁倾向训练组在情绪调节任务中的HF-HRV水平有显著的提高, 贴近健康对照组的水平, 并与抑郁倾向对照组分离。研究表明, 工作记忆刷新训练能够使抑郁倾向大学生的HRV活动更接近健康被试的HRV活动, 表明抑郁倾向大学生的情绪调节能力得到了改善。     

Reducing excessive questions in adults at adult-day training centers using differential-reinforcement-of-low rates

Differential-reinforcement-of-low rate (DRL) schedules are often used to reduce, not eliminate, behavior. We systematically replicated Austin and Bevan (2011) to determine whether the number of questions asked by two adults with intellectual disabilities working at adult-day-training centers could be reduced using a full-session DRL. The full-session DRL involved delivery of a reinforcer at the end of the day if the number of questions asked was less than a specified number during the entire session. Questions, up to a specified number, were also reinforced within-session. The full-session DRL reduced the number of questions asked by both participants and increased duration of task engagement for one participant.     

剖宫产率上升的原因及对策

近年来,剖宫产率日益上升,严重影响母婴利益,作为教学医院,也影响产科的临床教学质量。为提高产科质量,确保母婴安全,我们通过回顾性分析发现,胎儿窘迫,胎位异常,巨大儿,社会因素是剖宫产率上升的主要原因。相应对策可以通过加强孕产期宣教,实行镇痛分娩,建立待产、分娩、恢复及产后为一体(labor-delivery-recovery,LDR)分娩模式,提高医护人员助产技术水平,健全法制建设等措施,旨在降低剖宫产率。     

重新审视21世纪初期我国城市健康问题

随着我国城市化进程的加快,出现很多新的健康问题,突出表现在:生育率进一步下降;新、老空巢现象交错;城市边缘人群社会医学问题日趋彰显;文化冲突进一步加剧;城市公共安全问题突出。我们必须对上述问题予以足够重视,并开展针对性研究。     

The development of attention to simple and complex visual stimuli in infants: Behavioral and psychophysiological measures

The study of visual attention in infants has used presentation of single simple stimuli, multi-dimensional stimuli, and complex dynamic video presentations. There are both continuities and discontinuities in the findings on attention and attentiveness to stimulus complexity. A continuity is a pattern of looking that is found in the early part of infancy that remains throughout adulthood. A discontinuity is an emerging sensitivity to the content of the information in the stimulus presentations and alterations in patterns of attention based upon stimulus comprehensibility. The current paper reviews some of these findings with particular application to complex video presentations.