虚拟所有权关系下的自我参照效应

通过两个实验,探讨了代词所确定的所有权关系对记忆的影响。实验1为2(参照条件:我的与他的)×3(报告类型:主试跟读、被试跟读与被试自己读)的混合设计,实验2为2(参照条件:我的与他的)×2(报告顺序:自己先报告与他人先报告)的被试内设计。实验中被试按相应的要求报告物品的所有权关系。结果发现,被试对自己的物品的回忆成绩显著高于对他人物品的回忆成绩,表现出所有权效应,说明即使由代词确定的虚拟所有权关系也对记忆有影响。     

跨期选择和风险决策的认知神经机制

经济决策包含两个传统问题：跨期选择和风险决策。跨期选择分为冲动决策和自我控制,当冲动决策时,优先激活了与中脑多巴胺神经元相联系的旁边缘区域,包括伏隔核、眶额皮层中部和前额叶中部;自我控制即选择延迟决策时大脑双侧前额叶和后顶叶皮层神经活动增强。在风险和不确定性条件下,大脑皮层和杏仁核与风险决策联系密切。     

口语对书面言语的支持作用——来自脑损伤病人言语障碍的神经语言学分析

听、说、读、写是有文化的正常人言语交际的四个基本环节。言语行为有两个方面即:口语行为和书面言语行为。这两个方面有着各自的神经结构基础。但就个体言语发展来看,从听语到口语,到书面言语却又是相继形成,相互推动,相互制约的统一的大脑过     

性激素对人类择偶偏好的影响

择偶是一种重要的心理、社会和文化现象,婚恋择偶除了会受当下社会文化习俗等人文因素的影响,也受到个体生理机制的影响。本文聚焦热点,从进化心理学的角度阐述性激素对人类择偶偏好的影响。女性的择偶偏好受生理周期激素变化的影响,男性的择偶则会因为体内睾酮含量的不同而发生变化。性激素不仅影响人的心理和行为,还会影响人类择偶决策的神经机制。未来的相关研究应关注生理周期的测定方法、被试的文化背景和个体间的差异等。     

家庭经济压力与青少年抑郁:歧视知觉和亲子依恋的作用

对703名初中生(平均年龄14.30岁)进行问卷调查, 探讨了青少年歧视知觉、亲子依恋在家庭经济压力与青少年抑郁关系中的中介和调节作用。结果表明:(1)在控制了性别、年级后, 家庭经济压力对青少年抑郁具有显著的正向预测作用;(2)在家庭经济压力对抑郁的正向预测关系中, 歧视知觉起中介作用;(3)家庭经济压力通过歧视知觉对抑郁的中介作用受到亲子依恋的调节, 相对于亲子依恋水平较高的青少年, 中介效应仅在亲子依恋水平较低的青少年中显著。     

Visually perceived eye level and horizontal midline of the body trunk influenced by optic flow

The eye level and the horizontal midline of the body trunk can serve, respectively, as references for judging the vertical and horizontal egocentric directions. We investigated whether the optic-flow pattern, which is the dynamic motion information generated when one moves in the visual world, can be used by the visual system to determine and calibrate these two references. Using a virtual-reality setup to generate the optic-flow pattern, we showed that judged elevation of the eye level and the azimuth of the horizontal midline of the body trunk are biased toward the positional placement of the focus of expansion (FOE) of the optic-flow pattern. Furthermore, for the vertical reference, prolonged viewing of an optic-flow pattern with lowered FOE not only causes a lowered judged eye level after removal of the optic-flow pattern, but also an overestimation of distance in the dark. This is equivalent to a reduction in the judged angular declination of the object after adaptation, indicating that the optic-flow information also plays a role in calibrating the extraretinal signals used to establish the vertical reference.     

Relationship of Acculturation and Family Functioning to Smoking Attitudes and Behaviors Among Asian-American Adolescents

The primary objective of this study was to examine the combination of acculturation, family functioning, and parental smoking as predictors of smoking attitudes and behaviors among Asian-American adolescents. The participants were 106 Asian-American high school students whose ages ranged from 15 to 19 (51 male and 55 female, mean age = 16.30 years). Of the sample, 49% reported having tried smoking, and 27% identified themselves as regular smokers. The results indicated that smoking attitudes were significantly associated with smoking behaviors. Compared to nonsmokers, adolescent regular smokers had more positive smoking attitudes, lower acculturation, poorer family functioning and were more likely to have a father who smoked.