内隐多效性选择的ERP证据

采用事件相关电位技术,考察内隐多效性选择及其神经机制。被试的任务是认真观看配对的纯色图片刺激,并进行分类按键反应。实验结果发现,在P2上,积极启动刺激比对照刺激激发了更大的P2波幅; 对比对照刺激,积极启动刺激在左脑、大脑中部和后脑诱发了更大的P2波幅,其中右脑的效应最大。在N2上,积极启动刺激比对照刺激激发了更小的N2波幅; 对比对照刺激,积极启动刺激在左脑、大脑中部和后脑诱发了更小的N2波幅,其中右脑的效应最大。在P3上,积极启动刺激比对照刺激激发了更大的P3波幅; 对比对照刺激,积极启动刺激在左脑、大脑中部和后脑诱发了更大的P3波幅,其中右脑的效应最大。研究结果表明当外显目标与内隐目标同时被呈现时,被试趋向于做多效性选择,这可能表明无意识信息加工具有相当大的权重。且右后部脑区可能是加工多效性刺激的核心和关键区域,P3成分可能反应了内隐多效性选择的精细加工过程,能够作为内隐多效性选择的有效的ERPs指标。     

羞怯与受欺负:社交回避与被他人容纳的多重中介效应

采用大学生羞怯量表、被他人容纳量表、大学生社交回避及苦恼量表和欺负问卷测量了369名大学生,探讨社交回避和被他人容纳在羞怯与受欺负之间的作用。结果表明:(1)羞怯、社交回避和受欺负三个变量彼此之间均呈显著正相关,这三个变量与被他人容纳均呈显著负相关;(2)羞怯不仅直接影响受欺负,也通过社交回避-被他人容纳的链式中介作用间接影响受欺负。     

社会支持对大学生社会幸福感的影响—希望的中介作用

基于积极心理学,采用问卷调查法,对1098名大学生进行调查,探讨社会支持对社会幸福感的影响,并基于希望进行中介效应检验,借此构建三个变量之间的关系模型,探索促进大学生心理健康发展的内在机制。结果表明:社会支持、希望与社会幸福感之间两两相关显著; 社会支持和希望及其各维度,显著正向影响大学生的社会幸福感; 社会支持通过希望影响大学生社会幸福感水平。研究结果证实了希望在社会支持影响社会幸福感中起部分中介作用的心理机制,为大学生心理健康教育提供了参考建议。     

Visual attention control differences in 12-month-old preterm infants

There have been few previous attempts to assess the development of early markers of executive function in infants born preterm despite well-established deficits reported for older preterm children that have been closely linked to poorer academic functioning. The present study investigates early attention control development in healthy 12-month-old age-corrected pre-term infants who were born less than 30 weeks and compares their performance to full-term infants. Eye-tracking methodology was used to measure attention control. Preterm Infants spent less time focused on the target and were slower to fixate attention, with lower gestational age associated with poorer target fixation and slower processing speed. There were no significant group differences observed for inhibition of return or interference control. These findings suggest that specific emerging deficits in attention control may be observed using eye tracking methodology in very preterm infants at this early stage of development, despite scores within the average range on the Bayley Scales of Infant Development.