Fishing for the right words: decision rules for human foraging behavior in internal search tasks

Animals depleting one patch of resources must decide when to leave and switch to a fresh patch. Foraging theory has predicted various decision mechanisms; which is best depends on environmental variation in patch quality. Previously we tested whether these mechanisms underlie human decision making when foraging for external resources; here we test whether humans behave similarly in a cognitive task seeking internally generated solutions. Subjects searched for meaningful words made from random letter sequences, and as their success rate declined, they could opt to switch to a fresh sequence. As in the external foraging context, time since the previous success and the interval preceding it had a major influence on when subjects switched. Subjects also used the commonness of sequence letters as a proximal cue to patch quality that influenced when to switch. Contrary to optimality predictions, switching decisions were independent of whether sequences differed little or widely in quality.     

躯体运动促进空间更新的环境依赖效应

Kelly, Avraamides和Loomis (2007)发现被试在新环境中空间更新失败, 而肖承丽和刘传军(2014)发现被试在新环境中可使用想象平移等策略来实现空间更新。为了探索该两项研究的异同, 本研究采用与Kelly等相同的实验范式进行研究。实验1被试在原学习环境中完成实验任务。实验2被试记忆完物体空间位置后, 转移至新环境, 在只依靠离线表征、离线表征与在线表征相协调和离线表征与在线表征相矛盾三种条件下完成相同的实验任务。结果发现, 被试在原环境中通过躯体运动和记忆两种方式促进空间更新, 具有同等有效性, 而在新环境中躯体运动显著差于记忆对空间更新的促进作用; 躯体运动和记忆对空间更新的促进作用在两种环境中均高度相关。研究表明, 躯体运动促进空间更新具有环境依赖效应, 与记忆对空间更新的促进作用相比, 躯体运动对空间更新的促进作用会随着环境的改变而降低。     

家庭环境与高中生发展:自主的中介作用及其性别差异

从浙江省三所全日制高中选取348名高一到高三的学生为被试, 采用集体上机填答的方式实施问卷调查, 考察家庭环境对高中生发展的影响及作用机制, 探讨自主的中介作用及其性别差异。使用描述检验、相关分析和结构方程模型等方法, 结果发现:(1)男生的情感自主显著高于女生, 感知到的家庭亲密度水平显著低于女生;(2)家庭环境和自主与积极发展呈显著正相关, 与消极发展呈显著负相关, 积极发展与消极发展呈显著负相关;(3)家庭环境对积极发展有显著的正向预测作用, 对消极发展有显著的负向预测作用, 且对积极发展的预测作用显著高于消极发展;(4)总体上, 自主在家庭环境和高中生积极、消极发展的关系中起显著的中介作用;自主在家庭环境和积极发展间的中介作用在男生和女生样本中均达到显著水平, 而在家庭环境和消极发展间的中介作用在男生样本中为完全中介, 在女生样本中不显著。研究结果为从家庭角度促进高中生的积极发展、降低消极发展的可能性提供了依据。     

气质稳定性与发展性新进展*

气质的稳定性和发展性是心理学研究争论已久的问题。遗传×环境的研究视角再次打破了传统研究模式,取而代之的是气质稳定性与发展性的共存,遵循传统先天论——环境论——先天论——先天论×环境论的总体发展态势。该视角在拓展气质研究领域的同时,也成为未来研究的主要取向。本文首先综述了由于研究手段的更新和多元化而引发的气质稳定性和发展性两方面的最新实证研究,探讨了稳定性中遗传基因加性效应和非加性效应、脑生理基础以及个体气质发展性的内部、外部影响因素。然后,从研究样本的年龄段、气质的生理机制和儿童气质的纵向研究、亲子互动及师生互动方面的研究等方面提出目前我国气质研究未来方向。     

Life at Home: Same Time,Different Places — An Examination of the HOME Inventory in Different Cultures

In this paper we review literature on the use of the HOME Inventory across cultures. We address issues pertaining to measurement equivalence and validity. Specifically, we focus on: (a) changes in the content of HOME made by researchers, (b) distributional properties of HOME scores, (c) the factor structure of HOME, and (d) correlations between HOME, family characteristics, child characteristics and environmental conditions. In most affluent, western countries, with their individualist orientations, HOME was used essentially as it was originally constructed. Researchers in less industrialized, more collectivist countries tended to express greater scepticism about the appropriateness of some HOME items, and several teams of researchers made modifications in the instrument. The HOME total score showed theoretically meaningful (and similar) correlations with family structure, family status and child outcome measures across many cultures. Evidence attesting to the cultural equivalence (and validity) of HOME subscales was far less plentiful and compelling. In general, there seemed greater cross-cultural equivalence for items assessing cognitively stimulating aspects of the environment than for items assessing socioemotional support. The usefulness of the Inventory in other cultures and for cross-cultural comparisons depends on the purposes one has for using a measure of the home environment. © 1996 John Wiley & Sons, Ltd.     

论情绪的生态理性

生态理性强调环境对人的塑造作用,强调人在适应环境过程中获得的功能作用.该文在全面解读生态理性内涵的基础上,从两个方面寻找证据论证情绪具有生态理性：（1）情绪是环境自然塑造的结果,携带着丰富的环境信息;（2）情绪的功能反映环境结构,自动调节人类行为。在上述论证的基础上,我们尝试提出情绪影响个体行为的工作机制,并在一定范围内分析了不良情绪与生态理性之间的关系。     

Associations between childhood adversity and daily suppression and avoidance in response to stress in adulthood: can neurobiological sensitivity help explain this relationship?

Background and objectives: Although it has been postulated that psychological responses to stress in adulthood are grounded in childhood experiences in the family environment, evidence has been inconsistent. This study tested whether two putative measures of neurobiological sensitivity (vagal flexibility and attentional capacity) moderated the relation between women’s reported exposure to a risky childhood environment and current engagement in suppressive or avoidant coping in response to daily stress.

Design and methods: Adult women (N?=?158) recruited for a study of stress, coping, and aging reported on early adversity (EA) in their childhood family environment and completed a week-long daily diary in which they described their most stressful event of the day and indicated the degree to which they used suppression or avoidance in response to that event. In addition, women completed a visual tracking task during which heart rate variability and attentional capacity were assessed.

Results: Multilevel mixed modeling analyses revealed that greater EA predicted greater suppression and avoidance only among women with higher attentional capacity. Similarly, greater EA predicted greater use of suppression, but only among women with greater vagal flexibility.

Conclusion: Childhood adversity may predispose individuals with high neurobiological sensitivity to a lifetime of maladaptive coping.     

What can regular and timely student feedback tell us about the teaching and learning processes?

Most studies on the evaluation of teaching focus on the input (teacher traits) or the output (student-generated products) of the teaching and learning processes. This article is based on a case study that examines the three components of teaching and learning: input, output and process. It presents a framework for collecting quantitative and qualitative data on the quality of instruction, assessment and feedback, and learning environment in college composition courses to complement the feedback provided by the end-of-course student evaluations of teaching for the purpose of monitoring, guiding, and improving instruction.     

The Religious and Political Origins of Evangelical Protestants’ Opposition to Environmental Spending

Evangelical Protestants are less likely than most other Americans to support environmental policies and spending to protect the natural environment. We use almost three decades of repeated cross‐sectional data to examine the factors that promote evangelicals’ opposition to environmental spending. Mediation models with bootstrapped standard errors show that affiliation with the Republican Party, biblical literalism, and religious service attendance mediate differences in support for environmental spending between evangelical Protestants and other Americans. The importance of these mediating variables, however, varies over time and by the group evangelicals are being compared to. Differences in support for environmental spending between evangelical and mainline Protestants, for example, are primarily due to views of the Bible, but not at all to Republican identification. The results shed light on the causal effects of religion on views of the environment, temporal changes in the social and political implications of religiosity, the persistence of divisive issues that support the continued existence of culture wars, and the future of government spending on environmental problems in a social context where scientific evidence is filtered through political and religious ideology.