预警、重复学习和反馈对错误记忆的影响——错误记忆的信号检测论分析

本研究用信号检测论分析预警、重复学习和反馈三种变量对错误记忆的影响.实验1考察预警指导语的影响.实验2考察重复学习和反馈的影响.结果表明:预警对被试辨别力和反应偏向的影响不明显,对错误记忆影响也不显著;重复学习不能明显影响被试的反应标准,但可提高辨别力减弱错误记忆;反馈明显使被试倾向于使用更为宽松的反应标准,难以降低错误记忆.再认双加工模型和激活/监测理论能对实验结果做出合理的解释.     

学业成就中等生和优良生的成就目标、自我监控与学业成绩关系的比较研究

采用量表法对学业成就中等生的研究发现：与学业优良生相比,学业成就中等生的自我监控水平显著低下;成就目标与学业成绩并无直接关系,但学习目标会通过自我监控间接影响学业成绩;在学业成就中等生中,高学习目标、低成绩目标者表现出更高的自我监控水平。     

Parents’ Perceptions of Autism Spectrum Disorder Etiology and Recurrence Risk and Effects of their Perceptions on Family Planning: Recommendations for Genetic Counselors

Knowledge about the etiology of Autism Spectrum Disorders (ASDs) is increasing, but causes remain elusive for most cases. Genetic counselors are positioned to help families that have children with ASDs despite uncertainty regarding etiology. To determine how genetic counselors might best provide services, an anonymous survey was conducted with 255 parents whose children were diagnosed on the autism spectrum. Questions concerned: 1) their perceptions of ASD cause(s) and 2) recurrence risk, 3) whether perceived risk affected family planning decisions, 4) whether parents had received genetic services, and 5) how genetic counselors might assist families. The most prevalent perceived cause was genetic influences (72.6%). Most parents’ recurrence risk perceptions were inaccurately high and significantly affected family planning. Only 10% had seen a genetic professional related to an ASD. Parents provided several suggestions for genetic counselor best practices. Findings indicate the importance of genetic counselor awareness of parent perceptions in order to best help families who have children with ASDs.     

A Comparative Analysis of Ethical and Professional Challenges Experienced by Australian and U.S. Genetic Counselors

Ethical issues are an inevitable part of genetic counseling practice. Prior research identified 16 domains of ethical and professional challenges encountered by practitioners in the United States. In order to further validate these domains, the present study surveyed Australian genetic counselors. Sixty-three respondents rated the frequency with which they encountered each domain, and 39 individuals also provided personal anecdotes detailing their most challenging ethical and professional dilemmas. Every domain reportedly was experienced by the Australian sample. However, there were some differences between Australian respondents and U.S. genetic counselors in frequencies of domain occurrence, and in strategies recommended for resolving them. Several anecdotes illustrate challenging situations due to Australia’s geography, universal healthcare system, and the genetic counseling profession’s evolution in that country. The results generally validate domains identified for U.S. genetic counselors. They further suggest that certain ethical issues may manifest in ways unique to a given country, and therefore they must be addressed in a culturally-appropriate manner.     

泛自闭症障碍执行功能的神经心理学和神经成像研究

文章主要回顾了泛自闭症障碍在四个方面的执行功能缺陷-维持注意、注意定向、反应抑制、和设置转换/认知灵活性.总括了泛自闭症障碍在这些特定的执行功能方面的神经心理学和神经成像研究,并提出了以后研究的建议.     

国内近十年来意识和无意识关系研究的新成就

近十年来,国内掀起了从自然科学途径进行意识和无意识对比研究的新热潮,尤其在实验范式的引进、修正、完善和模型建构方面,做出了中国学者自己的贡献。错误记忆、内隐时间及不注意视盲等新领域的触及代表了国内学者在意识研究内容上的丰富。“钢筋水泥”、“意识涌现”及“车站监视室”等模型的提出,代表了中国学者在意识研究理论方面的创新。当前国内意识研究与国外基本同步,但存在着“研究领域泛化,神经机制探讨有限,跨学科整合力度有待深化”的问题。     

Modulating the phonological similarity effect: The contribution of interlist similarity and lexicality

The classical phonological similarity effect (PSE) was studied with words and nonwords in two immediate serial recall (ISR) tasks. The relative contributions of intralist and interlist interference were compared, and differential effects on item and order memory were observed. PSE occurred with words and was reversed with nonwords. In addition, PSE was modulated by interlist similarity, which enhanced recall of rhyme items and impaired recall of distinct items. Finally, interlist similarity reduced item recall of words, whereas it improved serial recall of nonwords. The latter finding rules out the hypothesis that the reverse PSE for nonwords is due to interlist interference. It is concluded that two opposing effects of phonological intralist similarity cause the interaction between PSE and lexicality in ISR. With words, the positive effect on item recall is usually masked by a much more disruptive effect on position accuracy. With nonwords, however, the positive effect often masks the negative one. These findings are discussed in relation to current models of verbal short-term memory.     

The Origins of Hopelessness Among Inner-City African-American Adolescents

Much has been written in recent years about hopelessness among residents of impoverished inner-city neighborhoods, but little research has been conducted on the origins of hopelessness. The literature on social disorganization and the literature on child development independently suggest two possible causes of hopelessness among adolescents: disruptive events and lack of connectedness to people and institutions. We explore these two factors as predictors of hopelessness for 5895 youths living in impoverished inner-city neighborhoods in Mobile, Alabama. The longitudinal data for this study allow us to explore the development of hopelessness over time, predicted by prior levels of disruption and connectedness. The results show that over time several variables associated with disruption (Change in Mother Figure, Exposure to Violence, Traumatic Stress, Worry) and connectedness (Sense of Community, Warmth Toward Mother, Religiosity) are positively or negatively associated with increased feelings of hopelessness among inner-city adolescents.     

“鬼”事两则

《科学与无神论》编辑部:我第一次阅读贵刊之时,就想把我自己经历的两回"鬼事"告诉你们,但我是农民,文化低,缺知识,不知我的"鬼事"讲给人听,有无利益?想了好几年没有定论,我是体残、多病、年老、风烛残年的人,何时死去无法预料,我亲身经历的两回"鬼事"不说出来,总好像有件事没有做完似的,今天决定告诉你们,如果没有用就丢纸篓里,假如有些用,请整理发表,为了对事实的负责,若有必要可以写出讲述人我的姓名。     

社交网站使用对青少年幸福感的影响:一个有调节的中介模型

在社会比较的视角下探讨社交网站使用对青少年幸福感的影响,建构了一个有调节的中介模型考察消极社会比较的中介作用和社交焦虑的调节作用。采用社交网站使用强度问卷、消极社会比较问卷、社交焦虑量表和主观幸福感问卷对798名中学生进行问卷调查。结果表明:(1)社交网站使用通过消极社会比较的中介作用间接影响青少年的幸福感;(2)该间接效应受到社交焦虑的调节,相对于低社交焦虑的青少年,高社交焦虑青少年的社交网站使用诱发更多的消极社会比较。