人工神经网络模型在心理学研究中的运用

人工神经网络是对真实神经元网络的粗略模拟,具有容错性、抗干扰性、高效性等特征,具有学习、记忆等强大的认知功能,因此适宜于心理学许多领域的模拟研究。借助神经网络模型不仅可以模拟和验证以往的实验室研究;还能深入探讨感知、联想、学习和记忆等认知过程的具体发生机理,把握其内在机制;它对探讨内隐记忆、内隐学习等无意识认知过程有极大的启发作用。     

非良基集合的外延公理

近年来,由于非良基集合在人工智能、认知科学及哲学等领域都有很重要的应用,它的研究越来越受到人们的关注。判断两个对象的同一性是集合论中最基本的问题,然而,与良基集合不同的是,非良基集合难以找到其最基本的组成成分,这样通常的外延公理就无法判断两个非良基集合（例如x={x}和y={y}）相等。为了找到判断两个非良基集合相等的标准,我们必须强化通常的外延公理。利用Aczel四种非良基公理（AFA,SAFA,FAFA和BAFA）,我们推出了四种判断两个非良基集合相等的标准,并且举例说明对于给定的两个非良基集合,如何判断它们相等,从而解决“循环集合”相等的问题。此外,笔者进一步论证判断这四种非良基集合相等的标准是通常外延公理的扩张,而不是替代。为此,本文首先给出了集合和图的一些基本定义和结果;其次讨论了由四种非良基公理AFA,SAFA,FAFA和BAFA分别确定的四种集合全域A,S,F和B;最后,讨论了外延公理的扩张。     

进食障碍发病机制的研究进展与思考

进食障碍是一组典型而严重的心身疾病.随着现代医学模式的转变,生物-心理-社会因素对进食障碍的影响日益受到关注.本文拟从生物学、心理学、社会学因素方面,综述近年来国内外对进食障碍发病机制的最新研究,并结合哲学相关理论对进食障碍发病机制的研究进行探讨分析.     

内隐态度之“内隐”的涵义

内隐态度,又称为间接测量态度或自动加工态度。很多学者认为内隐态度是无意识的,需要通过间接测量来获得。但是也有学者认为,当前没有研究可以证明内隐态度内容的无意识性,并且认为内隐态度也并非一定要用间接测量来获得。探讨内隐态度之“内隐”的涵义,对于更好地理解内隐社会认知领域具有一定的借鉴意义。     

幼师生职业决策自我效能感问卷的初步编制

以344名幼儿师范学校的学生为被试,检验了自编《幼师生职业决策自我效能感问卷》的信效度,同时考察了幼师生职业决策自我效能感的特点。结果显示:(1)《幼师生职业决策自我效能感问卷》具有良好的结构效度和效标效度;(2)对幼师生职业决策自我效能感的方差分析发现,生源地与年级的主效应不显著;(3)喜欢幼师专业与否的主效应显著,平均数比较发现,喜欢幼师专业的学生在职业决策自我效能感及其五个维度上的得分都显著地高于不喜欢幼师专业的学生;(4)生源地与年级、生源地与对幼师专业的兴趣以及年级与对幼师专业的兴趣的交互作用均不显著。     

父母冲突与中学生应对方式的关系:教养方式和情绪安全感的链式中介作用

为了探讨父母冲突、父母教养方式、情绪安全感和应对方式的关系,研究采用量表对北京市和河南省1322名初一到高二的学生进行调查。结果表明：父母冲突直接影响中学生的应对方式,且存在三条路径：通过父母教养方式的单独中介作用影响中学生的积极应对方式和父母消极教养方式的单独中介作用影响中学生的消极应对方式;通过情绪不安全感的单独中介作用影响中学生的应对方式;通过父母消极教养方式和情绪不安全感的链式中介作用影响中学生的应对方式。因此减少和避免父母冲突,提高中学生的情绪安全感,同时给予中学生积极教养方式,减少和避免消极教养方式,有利于中学生积极应对方式的发展。     

Mindfulness training for loneliness among Chinese college students: A pilot randomized controlled trial

Loneliness has been found to predict a wide range of physical and mental health problems. It is suggested that China's One‐Child Policy places young Chinese people at a particularly high risk for loneliness. Although loneliness is most prevalent in late adolescence and early adulthood, interventions have primarily targeted children or older adults with limited success. The current study examines a pilot randomized controlled trial of a mindfulness training program among Chinese college students. Participants with elevated loneliness (N = 50, ages 17–25) were randomized into either an 8‐week mindfulness training or a control group. Self‐reported measures of loneliness and mindfulness were administered at baseline and posttest. The training group also completed a program evaluation form and a 3‐month follow‐up assessment. Results provided preliminary evidence indicating that the intervention was feasible and effective at reducing loneliness among Chinese college students. Limitations and future directions were discussed.     

The Effect of Internal Locus of Control on Career Adaptability: The Mediating Role of Career Decision‐Making Self‐Efficacy and Occupational Engagement

This study examined the mediating roles of career decision‐making self‐efficacy (a domain‐specific motivational variable) and occupational engagement (a behavioral variable) on the relationship between internal locus of control (a general motivational variable) and career adaptability among college students in South Korea (N = 310). The findings extend past research on career adaptability by identifying a relationship among the variables.     

Pre-existing Perceptions of ADHD Predict Children’s Sociometrics Given to Classmates with ADHD

Considerable research documents that even young children possess stigma about mental illness, which may affect how they evaluate peers with mental health conditions. This study examined children’s pre-existing perceptions of Attention Deficit/Hyperactivity Disorder (ADHD) behaviors as predictors of their subsequent sociometric judgments of classmates with ADHD in a 2-week summer day camp. Participants were previously unacquainted children ages 6.8–9.8 years (113 typically-developing and 24 with ADHD; 48.2% boys; 81% White). Children initially more inclined to interact with a hypothetical classmate with ADHD gave fewer “dislike” nominations to real-life classmates with ADHD at camp. Children who initially believed that ADHD symptoms were uncontrollable gave more “dislike” nominations and lower liking ratings to classmates with ADHD when those classmates displayed severe ADHD symptoms. For children who had ADHD, their attribution of uncontrollability for ADHD symptoms predicted fewer “like” nominations and more “dislike” nominations given to classmates with ADHD. Lastly, children who initially reported they would help a hypothetical classmate with ADHD gave higher liking ratings to classmates with ADHD. These results were found after statistical control of the actual level of ADHD behaviors displayed by the classmates with ADHD. In summary, other children’s pre-existing or stigmatizing perceptions of ADHD behaviors may contribute, in part, to the substantial peer rejection typically experienced by ADHD populations. Findings have implications for understanding peer problems in children with this common mental health condition.     

Do relational and structural characteristics of negative school environments independently predict immigrant adolescents’ academic achievement?

A critical issue facing the majority of immigrant adolescents in U.S. public schools is persistent academic underperformance. Using data from the Children of Immigrants Longitudinal Study, this study investigates the extent to which negative social environments in U.S. public schools predict the academic achievement of immigrant adolescents. Importantly, we simultaneously examine the roles of both the relational (individual-level) and structural (school-level) characteristics of these negative social environments. Multilevel structural equation modeling revealed that immigrant students who are embedded in more negative relationships (e.g., having peers who discriminate against them) have lower levels of academic achievement. These predictive effects of individual-level negative social environments on academic achievement are mediated by both perceived school safety and educational expectations. Furthermore, we find double mediation effects (i.e., three-pathway mediations) via perceptions of school safety and educational expectations. The existence of these double mediation effects implies that relational characteristics strongly predict immigrant adolescents’ perceptions, attitudes, and school outcomes. Finally, we find that structural characteristics of negative social environments in U.S. public schools (i.e., total student enrollment and school-level dropout rate) also negatively predict immigrant adolescent achievement. We discuss the implications of these findings for improving immigrant adolescents’ achievements in U.S. public schools.