Some determinants of remote behavioral history effects in humans

Undergraduates were exposed to a series of reinforcement schedules: first, to a fixed-ratio (FR) schedule in the presence of one stimulus and to a differential-reinforcement-of-low-rate (DRL) schedule in the presence of another (multiple FR DRL training), then to a fixed-interval (FI) schedule in the presence of a third stimulus (FI baseline), next to the FI schedule under the stimuli previously correlated with the FR and DRL schedules (multiple FI FI testing), and, finally, to a single session of the multiple FR DRL schedule again (multiple FR DRL testing). Response rates during the multiple FI FI schedule were higher under the former FR stimulus than under the former DRL stimulus. This effect of remote histories was prolonged when either the number of FI-baseline sessions was small or zero, or the time interval between the multiple FR DRL training and the multiple FI FI testing was short. Response rates under these two stimuli converged with continued exposure to the multiple FI FI schedule in most cases, but quickly differentiated when the schedule returned to the multiple FR DRL.     

早期亲子触觉经验促进个体社会性发展的心理机制

近期研究显示,早期亲子触觉经验和个体的社会性发展存在密切联系。关于这种联系产生的原因,已有研究多从神经科学的角度,探讨CT传入神经(C-tactile afferents)及有关环路在其间可能起到的作用。基于已有文献,本文将提出一个综合模型,系统阐述背后涉及的心理机制,着重论证亲子关系、个体探索行为以及与之关联的心理成分在其间扮演的角色,并在此基础上从研究设计的局限、有关变量关系的多元性以及未来可拓展方向对该领域研究进行进一步讨论和展望。     

Evaluating the Safety and Effectiveness of the Weighted Blanket With Adults During an Inpatient Mental Health Hospitalization

The weighted blanket (WB) is a modality used to self-comfort, rest, sleep, and decrease anxiety. This exploratory, pilot study investigates the safety and effectiveness of the standardized use of the 30-pound WB with 30 adults during an acute inpatient mental health hospitalization. Safety measures include blood pressure, pulse rate, and pulse oximetry monitoring, with and without the 30-pound WB. The State Trait Anxiety Inventory-10 (STAI-10), a self-rating 0–10 anxiety scale, and electrodermal activity (EDA) readings measure effectiveness for anxiety reduction. No statistical differences in vital signs indicate WB safety. The STAI-10 and self-ratings indicate 60% had a significant reduction in anxiety using the WB. EDA readings were inconclusive.     

Stimulus Equivalence: Effects Of A Default-response Option On Emergence Of Untrained Stimulus Relations

Human subjects were exposed to a concurrent-chains schedule in which reinforcer amounts, delays, or both were varied in the terminal links, and consummatory responses were required to receive points that were later exchangeable for money. Two independent variable-interval 30-s schedules were in effect during the initial links, and delay periods were defined by fixed-time schedules. In Experiment 1, subjects were exposed to three different pairs of reinforcer amounts and delays, and sensitivity to reinforcer amount and delay was determined based on the generalized matching law. The relative responding (choice) of most subjects was more sensitive to reinforcer amount than to reinforcer delay. In Experiment 2, subjects chose between immediate smaller reinforcers and delayed larger reinforcers in five conditions with and without timeout periods that followed a shorter delay, in which reinforcer amounts and delays were combined to make different predictions based on local reinforcement density (i.e., points per delay) or overall reinforcement density (i.e., points per total time). In most conditions, subjects' choices were qualitatively in accord with the predictions from the overall reinforcement density calculated by the ratio of reinforcer amount and total time. Therefore, the overall reinforcement density appears to influence the preference of humans in the present self-control choice situation.     

Co-sleeping as a proximal context for infant development: The importance of physical touch

Co-sleeping is a complex familial phenomenon that has yet to be well understood by Western scientists. This paper provides an interdisciplinary review of research from anthropology, nursing, pediatrics, sociology, social work, public health, family studies, and psychology to focus on the role of physical touch in the context of co-sleeping, and how close physical contact in this context affects infants and their caregivers. Including an anthropological, evolutionary view of co-sleeping with other perspectives highlights it as an experience-expectant proximal context for infant growth and development. From this view, the importance of physical contact and touch in the nighttime caretaking microenvironment of co-sleeping becomes a central question, rather than an artifactual byproduct of “unhealthy” sleep arrangements. Rather than trying to eliminate co-sleeping, public health messages for parents would likely benefit from a more culturally-sensitive approach that focuses on advising how to co-sleep safely for families choosing it. For families trying to retain physical closeness between parent(s) and infants in the context of modern (especially Western) infant care practices that have reduced this physical contact, co-sleeping can be an important developmental context for encouraging and engaging in sensitive and responsive caregiving and providing a context for maternal-infant physiological synchrony and regulation.     

电子媒体使用对睡眠的影响,机制及其干预

电子媒体设备日益流行的同时, 睡眠问题也日趋加重, 主客观研究均发现电子媒体使用会对睡眠产生消极影响.背后的加工机制涉及睡眠置换,唤醒,屏幕光和电磁辐射.可以通过睡眠卫生教育,限制电子媒体使用,屏蔽屏幕蓝光等方式进行干预.未来研究需要从理论机制的整合,因果关系的确定,测量方式的客观化和标准化,使用情况细化和本土化研究方面做努力.     

基于安戈夫法的青少年问题性移动社交网络使用评估标准

摘 要 使用安戈夫法界定青少年问题性移动社交网络使用评估标准。结果发现,筛查评估问卷中8个及以上题目持肯定回答即可评估为问题性移动社交网络使用,实证区分效度中正常使用者检出率为12%,问题性使用者检出率为91.1%。基于安戈夫法的青少年问题性移动社交网络使用评估工具有较好的心理学测量属性,可用于青少年问题性移动社交网络使用的筛查评估。     

Experiences of Healing Touch and Counseling on a Bereaved Population: A Grounded Theory

Grounded theory was selected as a way to develop a theory about the potential adjunctive use of energy healing in the form of healing touch (HT) along with counseling on a bereaved population. Semi-structured interviews were conducted twice with clients and once with the counselors and HT practitioners. Results indicated that the participants agreed that both counseling and HT operated well together to provide bereavement support. The themes of trust, openness, intention, and spirituality within the holistic context seemed to make this model possible. Potential ethical concerns are discussed, as well as areas for future research and clinical applications.