汉字多音字加工过程中的重复知盲效应

以汉语中的多音字为研究材料, 采用RSVP任务, 探讨重复知盲的发生水平。采用三因素混合设计。结果是重复情况、位置和呈现时间有主效应。重复状况和呈现时间有交互效应：完全重复条件下, 呈现时间为100 ms和200 ms时都会产生重复知盲, 但同音重复和不同音重复条件下, 只有在呈现时间为100 ms时才产生重复知盲效应。结果表明：1)刺激的重复性和呈现时间是产生重复知盲的重要条件; 2)重复知盲的产生并未上升到语义加工水平, 而是处于知觉加工水平。     

青少年情绪预测偏差与决策的关系研究

在决策过程中人们通常选择那些使其感到快乐的行为,决策结果与所预测的高兴或悲伤、满意或不满意紧密相连,以往研究发现这类预测即情绪预测存在偏差。本研究以188名中小学生为被试,采用自编情绪评定表和最后通牒游戏范式,对情绪预测偏差与决策的关系进行探索。结果表明青少年在预测对未来事件的情绪反应时存在强度偏差和持续时间偏差,情绪预测的强度偏差和持续时间偏差影响青少年回避或趋向决策。     

流动儿童压力应对方式与抑郁感、社交焦虑的关系:一项追踪研究

为了探讨流动儿童压力应对方式与抑郁感、社交焦虑的变化特点及其动态关系,本研究通过整群抽样法从5所北京市公立学校和1所打工子弟学校选取1164名流动儿童,采用问卷调查的形式对其进行为期一年的追踪测查,追踪时回收有效数据680份.对前、后测均参加调查的680名被试的数据进行分析,结果发现:(1)经过一年的城市适应,流动儿童整体的积极应对增多,消极应对减少,抑郁感下降,但社交焦虑水平无明显变化;(2)流动儿童个体在压力应对、抑郁感、社交焦虑的发展上均表现出两极分化的现象,年龄越小、来京时间越短、低年级及女生流动儿童群体的发展趋势更为良好;(3)流动儿童压力应对方式与抑郁感、社交焦虑间存在相互作用的动态关系,前测压力应对方式、抑郁感、社交焦虑均能显著预测后测相应变量的水平,前后测压力应对方式对抑郁感、社交焦虑均有即时预测作用,而前测抑郁感和社交焦虑对后测压力应对方式有不同的延时性影响.     

Depressive symptoms, cortisol, and cognition during human aging: the role of negative aging perceptions

Depressive symptoms and memory impairments are associated with heightened stress hormone levels during aging. A factor that is related to memory deficits during aging is internalized negative aging stereotypes; the idea people have about the process of aging. In this study, we assessed the associations between internalized negative aging stereotypes, depressive symptoms, subjective and objective memory assessments, and cortisol concentration among older adults. Forty older adults aged between 58 and 85 years (18 females and 22 males; mean age?±?SD: 71.25?±?8.80 years) were assessed in this study. Measures of internalized negative aging stereotypes, depressive symptoms, and both subjective and objective memory performance were assessed. Salivary samples were obtained for measurement of cortisol concentration. Stepwise linear regressions were executed in our main analyses. Internalized negative aging stereotypes were associated with increased depressive symptoms and subjective memory complaints. No significant differences were observed for objective memory performance, or cortisol concentration. Internalized negative aging stereotypes are associated with increased depressive symptomatology and subjective complaints of memory; however, they do not predict increased cortisol concentration nor objective memory performance during aging. These results indicate that the mechanism underlying the association between internalized negative aging stereotypes and cognitive impairments may not be related to dysregulations of cortisol secretion among older adults.     

COMT基因Val158Met多态性与同伴关系对青少年抑郁的影响

以1048名汉族青少年为被试,采用问卷法和基因分型技术,综合运用传统回归分析和新兴的再参数化回归分析,考察COMT基因Val158Met多态性与同伴关系对青少年抑郁的交互作用模式及其性别差异。结果发现,COMT基因与同伴接纳和同伴拒绝交互预测青少年抑郁,具体表现为,在低同伴接纳或高同伴拒绝环境中,携带ValVal基因型的青少年抑郁水平高于Met等位基因携带者;在高同伴接纳或低同伴拒绝环境中,携带ValVal基因型的青少年抑郁水平低于Met等位基因携带者。此外,COMT基因与同伴接纳和同伴拒绝的交互作用与男生抑郁的关联更加密切。结果显示,COMT基因与同伴关系的交互效应为不同易感性模型提供了证据,而且该基因×环境交互效应存在性别差异。     

提取干扰对内隐记忆的影响

以往研究多认同内隐记忆不会受到干扰的影响,但主要集中于编码时的干扰不会影响随后的内隐记忆提取成绩,而对于提取时的干扰是否也不会影响内隐记忆成绩仍存在疑义。该文在实验1采用学习-测验范式,通过在提取阶段设置同时干扰任务进一步考察提取干扰与内隐记忆的关系,结果表明提取干扰下并未发现明显的启动效应,即提取干扰破坏了内隐记忆。为进一步探讨内隐记忆的提取干扰效应是否源于记忆与干扰刺激同时呈现所引起的知觉表征竞争,实验2改变了记忆与干扰刺激的呈现顺序,结果表明不论干扰刺激在记忆项目之前或之后呈现,启动效应均受到影响。相比之下,提取干扰对再认成绩的影响并不明显(实验3)。上述结果表明,内隐记忆的提取干扰效应是源于一般认知资源的竞争,在提取过程中任何能够产生认知资源竞争的变量设置都可能会削减内隐测验中的启动效应。     

母子关系、师幼关系与学前流动儿童的社会适应行为

母子关系和师幼关系是儿童早期发展中最重要的人际关系, 在儿童社会适应中扮演着重要的角色。研究以北京市271名学前流动儿童和552名学前城市儿童为被试, 采用问卷法考察母子关系、师幼关系与学前流动儿童的社会技能、外显和内隐问题行为之间的关系。结果发现:(1)流动儿童母子关系亲密程度低于城市儿童, 母子关系冲突性、师幼关系亲密性和冲突性与城市儿童没有差异;(2)母子关系对儿童社会适应行为的预测作用在流动儿童和城市儿童上没有显著差异, 母子关系亲密性正向预测社会技能, 负向预测内隐问题行为;母子关系冲突性负向预测社会技能, 正向预测外显和内隐问题行为;师幼关系亲密性正向预测城市和流动儿童的社会技能, 并且显著负向预测流动儿童的内隐问题行为;(3)师幼关系对母子关系的调节作用主要表现在流动儿童而非城市儿童上, 师幼关系低冲突能够减少母子关系冲突性对流动儿童社会技能的负向预测作用, 师幼关系高亲密能够减少母子关系冲突性对流动儿童内隐问题行为的正向预测作用。     

当代西方语篇阅读信息加工过程理论的分歧与整合

当代西方语篇阅读研究过程中产生了多种理论与模式,它们试图对读者阅读过程的信息加工过程做出解释。文章从发展的角度介绍了建构主义理论、最低限度假设理论和记忆基础的文本加工观的历程、基本假设和实证研究,从中可以看出各种理论派别的分歧与整合的趋势。     

Set points of positivity ratio for different levels of well‐being: A latent profile analysis

Previous studies have explored the set points of the positivity ratio by grouping according to predetermined cut‐off scores, resulting in inconsistent criteria and unstable results. This study intends to further explore the set points of the positivity ratio using latent profile analysis. Two samples of 716 college students and 381 adults in China completed the Questionnaire for Eudaimonic Well‐Being, the Personal Growth Subscale from Ryff's Psychological Well‐being Scale, the Need Satisfaction Questionnaire, and the Emotional Experience of Well‐Being Questionnaire. College students were classified into four classes (2.0, 2.8, 3.7 and 5.0) with the set points of the positivity ratio, whereas adults were classified into three classes (1.9, 2.9 and 4.2) with the set points of the positivity ratio. The difference of the set points between college students and adults was nonsignificant for medium and high well‐being classes, and significant with a small effect size for the higher well‐being class. Future research should examine more diverse samples and combine the real experience method to further explore the set points of the positivity ratio.     

情绪影响错误记忆认知机制的年龄差异

以情绪性的类别图片为实验材料,使用改进后的简化联合再认范式,结合多项式加工树建模的统计手段,对28名老年人(67.95±4.70岁)和29名年轻人(22.60±2.74岁)情绪错误记忆的产生机制进行考察。结果发现,在行为层面,消极情绪增加年轻人和老年人的错误"记得",而积极情绪只增加老年人的错误"记得",老年人错误记忆的积极效应体现在更多地报告自己生动鲜明地"记得"未曾发生过的积极事件。在认知机制层面,虚假回想是导致老年人错误记忆出现积极效应的关键认知过程。相比年轻人,积极情绪会独特地增加老年人的虚假回想,进而增加错误"记得"的发生概率。