Factors in the waning of muricide in the rat. II. Digging behavior

If each mouse killed by a rat is removed from the rat's home cage and replaced immediately by another, the decline in the rate of killing within the one-hour sessions is accompanied by an increase in digging in the woodchip bedding material. Deprivation of the opportunity to dig by removal of the bedding material results in a statistically significant increase in kill rate. Since no other behaviors monitored showed a similar increase with this manipulation, it appears that digging may be a mechanism important in the waning of muricide. Furthermore, digging may be, in some sense, a functional equivalent of killing.     

Can Lutheran Theology and Virtue Ethics Be Friends?

Lutheran theology is generally suspicious of virtue ethics. This suspicion arises from (1) the Lutheran commitment to justification by faith in God's unconditional promise; and (2) Luther's corollary understanding of sin as existential self‐absorption. Some Lutheran theologians have sought to incorporate virtue ethics by using it as an orientation for Christian life, while making sure to avoid any contamination of the doctrine of justification by virtue ethics. My project is to consider the possibility of a mutual illumination and interaction between the doctrine of justification and virtue ethics’ focus on formation by habituation. As an aid in exploring this possibility I use the distinction in Dietrich Bonhoeffer's Ethics between the “ultimate” and the “penultimate.”     

Infants' sensitivity to differential luminance as information about depth

To what degree are young infants able to perceive differential shadowing and to what degree are they able to utilize this stimulus parameter as information about depth? Two habituation experiments were performed. In Experiment 1, a group of 5-month-old infants were habituated to a low frequency, vertical, and approximately sinusoidal luminance grating superimposed on a flat colored surface. This display induced stable 3-D perception in adult subjects. After habituation, the infants viewed two test displays at alternating trials. One was made up of real half cylinders matching the light distribution of the habituation display and the other was made up of a square wave grating of the same spatial frequency as in the habituation one. Adults perceived the latter display as flat. Results showed that both test displays were treated as new ones by the infants habituated to the sinusoidal grating. Experiment 2 was identical to Experiment 1, except that the subjects were 3 1/2-month-old. These infants treated the half cylinders as familiar and the square wave grating as new. The results indicate that infants at both age levels (3 1/2 and 5 months of age) were sensitive to the difference between sharp and gradual change in luminance which is a prerequisite for perceiving form from luminance. However, neither age group seemed to utilize gradual change in luminance as information about space.     

中西方关于心理健康标准问题的探讨及对我们的启示

分析了国内外学者在制定心理健康标准时所作的探讨,提出了适应与发展应是心理健康考察的基本对象,对心理健康的评估应是对心理机能的评估,我国在制定心理健康标准时应借鉴西方的有关理论和经验。     

关注肝炎的"过度医疗"

肝炎诊疗领域存在的过度医疗现象是最具代表性的,集中体现为过度使用联合治疗、过度进行化验等辅助检查、过度使用新特药物、虚假广告泛滥等等,肝炎患者承担了额外风险,不但身心受损,而且经济支出严重超标,因病返贫、因病致贫的现象比比皆是.过度医疗是目前不规范的经济大环境的必然产物,救死扶伤、人道主义本应是医疗工作的准则,现在拜金主义、经济效应第一成为医疗活动的目的,过度诊疗在所难免.另外患者的无知和盲目,以及尚不规范的市场环境加剧了过度医疗现象.制定行业规范,建立社会监督机制,与国际肝炎诊疗指南接轨,是克服和纠正诊疗过度的有效方法.     

Retention beyond the threshold: Test-enhanced relearning of forgotten information

The effect of repeated testing on delayed relearning of paired associates was investigated. Participants learned two lists of Lithuanian-Dutch word pairs until reaching the criterion of one correct recall from long-term memory. In one condition, items subsequently received three post-retrieval study trials and in the other condition items received three post-retrieval test trials. Participants returned one week later for delayed recall and relearning. Post-retrieval test trials resulted in better delayed recall performance than post-retrieval study trials. Moreover, we found that the items that were repeatedly studied or tested one week prior to relearning were relearned faster than a new set of similar (not previously presented) items. Most importantly, items were relearned faster when they had previously been learned under conditions of post-retrieval testing than items learned under conditions of post-retrieval study. Taken together, the results indicate that the benefits of repeated testing are not just limited to conscious recall on a delayed test. Repeated testing during initial learning is also a very effective strategy to enhance delayed relearning.     

The Suitability of an Inhibitory Learning Approach in Exposure When Habituation Fails: A Clinical Application to Misophonia

Recent findings have led to a reconceptualization of the mechanisms that account for the efficacy of exposure-based treatments. Termed the “inhibitory learning model,” this approach emphasizes new learning when confronted with previously avoided stimuli rather than merely the cessation of fear or aversive emotional responding. In this paper, we propose the applicability of the inhibitory learning model for conditions and contexts in which simple exposure does not produce habituation. We illustrate this application from an in-progress randomized controlled treatment trial for adults with misophonia. Misophonia is a condition marked by strong aversive reactions to specific sounds. It is a difficult to treat and understudied syndrome. All participants in the trial received exposure, either before or after a stress management module of treatment. Exposure treatment emphasized altered expectancies for the target sounds as well as deliberate practice in hearing sounds on the individually developed hierarchy. Inhibitory learning strategies were employed to increase treatment adherence and commitment, shape patient behavior during exposures, manufacture negative prediction errors, increase perceived control over reactions, and promote learning that generalized to functional improvements. The findings are discussed in the context of future applications of the inhibitory learning model for psychopathology associated with avoidance.     

国外婴儿动词习得的两种研究范式

通过介绍国外婴儿动词习得的研究范式, 一是习惯化研究(Habituation paradigm), 二是多通道优先注视范式(IPLP), 来揭示婴儿语言前概念形成的认知心理。国外的研究表明, 婴儿的动词习得晚于名词学习; 动词的成分习得(路径成分或是方式成分)在婴儿周岁前也有时间先后; 动词完整意义的获得还与母语的输入有密切关系。综述说明, 采用这两种研究范式研究语前婴儿的语言认知是较为经济和有效的。