The centroid paradigm: Quantifying feature-based attention in terms of attention filters

This paper elaborates a recent conceptualization of feature-based attention in terms of attention filters (Drew et al., Journal of Vision, 10(10:20), 1–16, 2010) into a general purpose centroid-estimation paradigm for studying feature-based attention. An attention filter is a brain process, initiated by a participant in the context of a task requiring feature-based attention, which operates broadly across space to modulate the relative effectiveness with which different features in the retinal input influence performance. This paper describes an empirical method for quantitatively measuring attention filters. The method uses a “statistical summary representation” (SSR) task in which the participant strives to mouse-click the centroid of a briefly flashed cloud composed of items of different types (e.g., dots of different luminances or sizes), weighting some types of items more strongly than others. In different attention conditions, the target weights for different item types in the centroid task are varied. The actual weights exerted on the participant’s responses by different item types in any given attention condition are derived by simple linear regression. Because, on each trial, the centroid paradigm obtains information about the relative effectiveness of all the features in the display, both target and distractor features, and because the participant’s response is a continuous variable in each of two dimensions (versus a simple binary choice as in most previous paradigms), it is remarkably powerful. The number of trials required to estimate an attention filter is an order of magnitude fewer than the number required to investigate much simpler concepts in typical psychophysical attention paradigms.     

高压氧对小鼠学习记忆及脑细胞形态结构的影响

实验用两种行为模型（旷场行为模型和Ｙ－迷宫分辨学习模型）观察了幼龄小鼠在不同压力的高压氧处理后,对新异环境的探究行为和自发活动情况,以及学习记忆能力的变化;并用ＸＹ－生物医学电脑图像分析仪分析了与学习记忆相关的脑区（大脑皮层、海马）神经元密度,细胞核面积,胞核／胞浆比值的变化。结果表明：（１）与对照组相比,吸０.１ＭＰａ高压氧的幼鼠学习记忆能力明显提高,相关脑区的神经元密度、细胞核面积、胞核／浆比均显著增加。（２）吸０.２５ＭＰａ高压氧的幼鼠学习记忆能力与对照组相比无明显变化,但其在新异环境中的自发行为明显减少。提示：慢性吸入０.１ＭＰａ高压氧有利于促进幼鼠脑的生长发育,增强脑功能活动。     

说普通话儿童的语音习得

以说普通话的１２９名一岁半至四岁半儿童的口语资料为基础,首次确定了正常发展的普通话儿童在语音习得过程中各年龄段的音位集合、音位习得的先后顺序、及习得过程中典型的语音简化类型。研究结果可以应用到普通话儿童语音发展水平标准化测试,及对患有语音障碍的儿童的诊断。此外,研究结果还表明在普通话儿童的语音习得中同时体现了各语言共有的“普遍趋势”和普通话独有的语音特征,从而为跨语言语音习得的研究提供了新的证据,进一步发展了儿童语音习得的理论。     

Analog scale,magnitude estimation,and person trade‐off as measures of health utility: biases and their correction

Subjects judged the disutility of health conditions (e.g. blindness) using one of them (e.g. blindness+deafness) as a standard, using three elicitation methods: analog scale (AS, how bad is blindness compared to blindness+deafness?); magnitude estimation (ME, blindness+deafness is how many times as bad as blindness?); and person trade‐off (PTO, how many people cured of blindness is as good as 10 people cured of blindness+deafness?). ME disutilities of the less bad condition were smallest, and AS was highest. Interleaving PTO with ME made PTO more like ME. AS disutilities were inconsistent with direct judgments of differences between pairs of conditions. ME and PTO judgments were internally inconsistent: e.g. the disutility of one‐eye‐blindness relative to blindness+deafness was larger than predicted from comparison of each to blindness. Consistency training reduced inconsistency, increased agreement between AS and PTO, and transferred from one method to the other. The results support the use of consistency checks in utility elicitation. Copyright © 2001 John Wiley & Sons, Ltd.     

校园氛围与青少年问题行为的关系:同伴侵害的中介作用

许多研究表明,青少年感知的校园氛围对其问题行为有重要影响。但是,校园氛围起作用的中介机制仍有待进一步探讨。本研究旨在考察青少年感知的校园氛围与其问题行为(行为不良、抑郁)的关系,以及同伴侵害在其中的中介作用。采用分层整群抽样的方法,选取广东省10所学校2758名初中生作为被试,匿名填写社会经济地位问卷、家庭功能问卷、校园氛围感知问卷、青少年同伴侵害问卷、儿童抑郁调查表、青少年行为不良指数问卷。结果表明:(1)在控制了性别、年龄、社会经济地位和家庭功能后,积极的校园氛围显著负向预测青少年的行为不良和抑郁。(2)同伴侵害在校园氛围与青少年行为不良和抑郁之间具有中介作用。     

艾森克人格问卷简式量表中国版(EPQ-RSC)的修订

该文引进艾森克人格问卷简式量表（EPQ-RShortScale,EPQ-RS）,首次在国内加以修订。根据来自30个省市56个地区的8637人（含汉族7725人）的样本数据,修订形成了艾森克人格问卷简式量表中国版（EPQ-RSC）,共包括4个分量表,各12个项目,这一形式和EPQ-RS相同。作者并基于本研究的样本提供了EPQ-RSC的中国常模。研究表明该问卷的E、N和L三个分量表具有令人满意的信度和效度,P量表的信度和效度基本达到有关的心理测量学标准。作者最后对此问卷的信效度结果以及问卷结果反映的当代中国人人格特点进行了讨论。     

寄养家庭属性对寄养儿童生活满意度的影响研究

本研究在对家庭寄养儿童进行调查的基础上,编制了家庭属性因素与寄养儿童生活满意度测评量表,并对寄养儿童进行了抽样调查,得出以下结论：1．家庭寄养儿童的生活满意度水平较高;2．影响寄养儿童生活满意度的家庭特质因素有寄养家庭结构和寄养父母的和谐程度;3．对寄养儿童生活满意度影响较大的寄养家庭社会因素是情感满足、行为支持、家庭主导情绪、需要满足。     

高质量中国特色社会心理服务体系建设要贯彻好“六个必须坚持”

建设高质量中国特色社会心理服务体系,既是助力实现“健康中国”的重要路径,也是推进新时代创新社会治理与治理能力现代化的重要举措与手段。党的二十大报告提出的“六个必须坚持”既为建设高质量中国特色社会心理服务体系工作指明了方向,又从方法论的高度深刻阐述了推进理论创新的科学方法和正确路径。本文论述了如何通过贯彻落实“六个必须坚持”开展高质量中国特色社会心理服务体系建设。