Arousal and T-maze choice behavior in mice: A convergent paradigm for neophobia constructs and optimal arousal theory

Three experiments investigating the effects of arousal on the T-maze choice behavior of inbred mouse strains are reported. In Experiment 1, CBA and NZB mice were administered unrewarded free choice alternation tests on 10 consecutive days under either No Shock, Shock Start (shocked in the start box), or Shock Choice (shocked at the choice point) treatment conditions. Both strain and treatment effects were observed: In the No-Shock condition, the nonreactive CBA strain alternated, but the reactive NZB strain did not. In the Shock Start condition the CBA strain showed only a suppressed alternation, while the NZB strain administered the same treatment perseverated. Both strains perseverated in the Shock Choice condition. In Experiment 2, NZB mice administered identical shocks in the start box and goal arms on both trials of five consecutive tests conducted once a day perseverated to the same goal arm in which they had been shocked on the first trial. In Experiment 3, NZB mice punished for perseverating (with shock continuation) and simultaneously reinforced for alternating (with shock termination) showed a “punishment paradox”; they perseverated despite the reinforcement contingencies. These results, which are congruent with the optimal arousal theory and several characteristics the theory shares with the emergent neophobia construct, support the contention that arousal mediates a symmetrical relationship between approach and avoidance along a novelty-familiarity continuum.     

物质主义者自我概念的特点和相关理论

物质主义的经典研究分别从人格、价值观、目标和需要的角度界定和理解物质主义的相关现象。自我概念一直是贯穿物质主义研究的线索, 但直到最近研究者才试图以它为理论基点统摄与整合已有研究。相关研究表明, 物质主义者对自我的评价较低, 表现为低自尊、权变性自尊; 对自我的认识具有不一致性, 表现为自我概念不清晰、外显-内隐自尊分离、以及自我差距(理想自我与现实自我的差距)。最近出现的两个综合理论——物质主义的自我逃离理论与物质主义的认同目标追求理论提出, 物质主义是个体将物质拥有作为逃避自我的方式或满足自我认同动机的手段。这两个理论弥补了现有物质主义研究缺乏整合性理论的不足。未来研究可以通过借鉴有关自我概念的理论, 超越单纯的物质主义者自我匮乏的思路, 从而做出更大的理论贡献。     

团体宽恕干预在恋爱受挫群体中的运用及其对大学生心理健康教育的启示

为探讨团体宽恕干预在大学生恋爱受挫群体中的应用效果,本研究以31名在恋爱中受到过伤害的女大学生为对象进行6次团体宽恕干预,并设立一般干预组和控制组进行比较。研究结果显示：（1）前测中,三个组在恋爱宽恕问卷的四个维度、抑郁量表、焦虑量表和幸福感量表上均不存在显著差异;（2）后测中,在恋爱宽恕问卷的四个维度上,宽恕干预组均优于控制组,而一般干预组和控制组没有显著差异;在抑郁、焦虑和幸福感三个量表上,宽恕干预组和一般干预组都要优于控制组,但两个干预组之间差异并不显著;（3）前后测比较显示,宽恕干预组在各个指标上均有了显著变化;一般干预组在抑郁、焦虑和幸福感量表的得分上有了显著变化,但在恋爱宽恕的各个维度上（除报复维度）变化不显著;控制组则在各个指标上都没有显著变化。研究表明,面对恋爱受挫群体,宽恕干预的针对性更强,并对大学生的心理健康教育具有一定的启示作用。     

免除伦理审查制度及其应用实践建议

2023年发布的《涉及人的生命科学和医学研究伦理审查办法》（以下简称《办法》）首次设立了免除伦理审查制度。该制度设计旨在提升伦理审查效率,但也面临一系列的应用实践挑战。从澄清免除伦理审查的概念入手,简要分析免除伦理审查制度设计的初衷和必要性,同时,以美国为例,介绍了免除伦理审查制度的国际进展以及既往实践的经验教训。最后,针对《办法》提出的免除伦理审查相关要求的重点和难点进行了探讨,并就免除伦理审查的决定主体、标准操作程序,以及免除伦理审查的研究的跟踪审查等应用实践细节提出初步建议。     

儿童虐待与戒毒动机：自我概念的中介效应

本文旨在探讨戒毒人群儿童虐待情况,以及儿童虐待、自我概念和戒毒动机之间的关系。采用儿童虐待问卷、田纳西自我概念量表和戒毒动机问卷对771名（男520,女251）正在戒毒的人员进行调查。结果发现：（1）强制戒毒人群的儿童虐待现象比较普遍（56.7%）,特别是躯体忽视和情感忽视;（2）儿童虐待与自我概念、戒毒动机呈显著负相关,自我概念与戒毒动机呈显著正相关;（3）自我概念在儿童虐待与戒毒动机间起部分中介作用。结论：治疗戒毒人群的心理成瘾,应评估其儿童虐待情况,针对有儿童虐待经历者,可通过构建积极自我概念的方式改善戒毒动机,进而提高戒毒成功率。     

Motivational properties of spaced food presentation in hungry rats: Long-lasting effects on drinking and eating

Hungry rats were given 60 food pellets either at spaced intervals or massed in one or two presentations, or no food, followed by a consumption test in the home cage. Drinking was higher after spaced food sessions than after massed food or no food sessions (Experiments 1, 2, 3, and 5) and higher after the presentation of standard food pellets than after quinine-flavored pellets (Experiment 2). An effect of spacing was found even with a delay of 1 hr between the end of the food session and the drinking test (Experiment 3). Spaced food presentation also produced an increase in the consumption of quinine-flavored food pellets after the end of the session (Experiment 4). These results suggest that the enhancement of behavior caused by intermittent reinforcement cannot be attributed entirely to the short-term eliciting effects of the reinforcer or to its thirst-inducing properties.     

Socialization and career orientation among black and white college women

In a study of career orientation among black and white college women, support was found for hypotheses derived from postulates of Rotter's Social Learning Theory. Compared to whites, (1) blacks were less likely to expect the level of work involvement preferred; (2) blacks expected more employment; and (3) blacks were more likely to prefer less employment than they realistically expected. Antecedents of career expectation were categorized as internal, external, or neutral. As hypothesized, variables expressive of external control predicted level of career expectation among blacks, whereas variables expressive of internal control predicted high career expectations among whites.