《企业管理者管理自我效能感问卷》的编制

该研究旨在编制适合我国企业状况的《管理者管理自我效能感问卷》(enterprise intendant managementself-efficacy questionnaire,EIMSEQ)。在初测的基础上,通过探索性因素分析确定了构成该问卷的8个维度。然后,得到了一个包含8个维度共64个项目的《管理者管理自我效能感问卷》。在天津市六家国有企业中,利用该问卷调查了475名中层管理者。数据分析表明,该问卷具有很好的信度和效度。     

熟悉性对被试操作效应的作用:来自无线索回忆再认的证据

在动作事件的再认记忆中,被试操作后的记忆成绩优于单纯的词语记忆(SPT效应)。人们认为操作促进了回想加工,而熟悉性是否对SPT效应起作用仍然存在分歧。研究采用无线索回忆再认范式,考察了信息提取失败时熟悉性对SPT效应的作用。结果显示:(1)SPT和VT两种编码都引发了稳定的无线索回忆再认效应(RWCR效应)。(2)与VT编码相比,SPT编码引发更强的熟悉性加工,表现出无线索回忆再认的记忆优势。上述结果表明,即使无法正确提取细节信息,在SPT编码中被试凭借熟悉性辨认的能力仍然高于VT编码。该结果从信息提取失败的视角为熟悉性对SPT效应的作用提供了更为直接的证据。     

危机应对策略对消费者矛盾态度和购买意愿的影响

采用2×2两因素被试间实验设计探讨初始矛盾态度及危机应对策略对消费者矛盾态度和购买意愿的影响。结果表明:当消费者初始矛盾态度水平较低时更可能受辩解策略的影响,从而使其负面态度和矛盾态度下降; 当消费者初始矛盾态度水平较高时更可能受和解策略的影响,从而使其负面态度和矛盾态度下降; 正面态度/负面态度可以显著正向/负向预测消费者的购买意愿,矛盾态度在其中起调节作用,即矛盾态度水平越高,正面/负面态度与购买意愿之间关系的不确定性越高。     

大鼠脑反复缺血致不可逆性学习记忆障碍的研究

大鼠全脑反复缺血后产生不可逆性学习记忆障碍的研究,采用４血管阻断的方法,脑反复缺血再灌流,然后长期饲养。作水迷宫试验和跳台试验,结果显示缺血后出现了显著的、不可逆的学习记忆障碍。同时用放射免疫方法测定了额叶、颞叶、纹状体、丘脑、海马、Ｍｅｙｎｅｒｔ氏核中胆碱递质和ＡＶＰ,发现ＡＣｈ、ＣｈＡＴ、ＡＶＰ含量显著下降。下降的时间、幅度一致,变化呈正相关。ＡＣｈ、ＣｈＡＴ、ＡＶＰ是与学习、记忆密切相关的神经递质和神经肽。因而推断脑缺血后出现不可逆性学习记忆障碍与多脑区内ＡＣｈ、ＣｈＡＴ、ＡＶＰ含量显著下降有关。这对探讨临床上血管性痴呆发病机理进而开发有效的防治药物有重要意义。     

Are transitions in human gait determined by mechanical,kinetic or energetic factors?

It is currently unclear whether it is the need to maintain metabolic efficiency, the need to keep skeletal loading below critical force levels, or simple mechanical factors that drive the walk-to-run (W-R) and run-to-walk (R-W) transitions in human gait. Eighteen adults (9 males and 9 females) locomoted on an instrumented treadmill using their preferred gait. Each completed 2 ascending (W-R) and 2 descending (R-W) series of trials under three levels of loading (0%, 15% and 30% body weight). For each trial, participants locomoted for 60 s at each of 9 different speeds--4 speeds both above and below their preferred transition speed (PTS) plus their PTS. Evidence was sought for critical levels of key kinetic (maximum vertical force, impulse, first peak force, time to first peak force and maximum loading rate), energetic (oxygen consumption, transport cost) and mechanical variables (limb lengths, strength) predictive of the gait transition. Analyses suggested the kinetic variables of time to first peak force and loading rate as the most likely determinants of the W-R and R-W transitions.     

Gray Matter Atrophy in the Cortico-Striatal-Thalamic Network and Sensorimotor Network in Relapsing–Remitting and Primary Progressive Multiple Sclerosis

Neuropsychology Review - Gray matter atrophy in multiple sclerosis (MS) is thought to be associated with disability and cognitive impairment, but previous studies have sometimes had discordant...     

Correction to: Gray Matter Atrophy in the Cortico‑Striatal‑Thalamic Network and Sensorimotor Network in Relapsing–Remitting and Primary Progressive Multiple Sclerosis

Neuropsychology Review - A correction to this paper has been published: https://doi.org/10.1007/s11065-021-09503-6     

Effectiveness of Family Systems Theory Interventions on Adolescents with Type 1 Diabetes: A Meta-analysis

The purpose of this review is to synthesize the evidence and determine the efficacy of interventions based on family systems theory in diabetes-related family conflict, self-management, and glycemic control among adolescents with type 1 diabetes. A systematic search of five English databases was conducted. Interventions based on family systems theory in adolescents with type 1 diabetes that reported diabetes-related family conflict, self-management, and glycemic control as outcome variables were included. A total of 14 articles from ten interventions were included. Meta-analysis results revealed that, compared to adolescents who received usual care, adolescents who received family systems theory interventions reported fewer diabetes-related family conflicts with a medium effect size of 0.32 (p?<?0.05), but there was no significant improvement on self-management or glycemic control (p?>?0.05). Family systems theory interventions appear to have beneficial effect on reducing diabetes-related family conflicts for adolescents with type 1 diabetes. Adolescents who have type 1 diabetes and their families may need multidimensional psychosocial programs accompanied by diabetes education to improve glycemic control.

     

人如其食：食物性别刻板印象及对人物评价的影响

食物在社会生活中发挥着重要作用, 具有性别文化意义。两个研究分别探索了外显与内隐食物性别刻板印象的存在及其对人物评价的影响。研究1采用提名法、自我报告法和语义启动范式检验外显和内隐食物性别刻板印象的存在, 结果表明被试均持“男性偏好男性化食物, 女性偏好女性化食物”的外显食物性别刻板印象, 女性被试持有内隐食物性别刻板印象。研究2采用情境实验法和内隐关系评估程序进一步测量被试对食物性别刻板不一致目标人物在热情和能力维度上的评价, 结果发现人们对食物性别刻板不一致男性在热情维度的内隐评价更加积极。     

针对微测评理念的自适应测验技术——基于CO-MIRT诊断模型

前人研究业已表明MIRT模型在自适应测验等诸多领域的测量优势,但面对当前国内教育行业在实践过程中的现状,仍无法有效地解决待测知识点数量、试题数量和测量精度之间的矛盾。对此,本次研究设计了CO-MIRT模型,经由前馈层、全连接层的操作以共享试题之间所传递的信息,以及通过控制层、L2正则化等操作来限制小样本测验下的过拟合,来达到降低估计误差的目的。本次研究采用蒙特卡洛模拟的方式验证了模型效果,并使用数学推演的方式给予理论上的证明。