Hitmen and the Spaces of Contract Killing: The Doorstep Hitman

This exploratory paper considers the spaces where hits take place within Britain. It concentrates on those hits that have occurred on the doorstep of the victim and offers analysis of why this location might be chosen. It suggests an emerging modus operandi (MO) of doorstep hits and how knowledge of this MO might be useful to law enforcement. Two cold cases are re‐considered in light of this MO. Copyright © 2016 John Wiley & Sons, Ltd.     

The role of attentional resources in explaining sex differences in object location memory

Sex differences in object location memory have been widely studied, with mixed results. The role of attention in mediating the female advantage in object location memory has not been clearly understood yet. Two experiments, involving 181 participants and using an actual object array, were conducted in the present study to examine two learning conditions: incidental and intentional. In each experiment, participants were randomly assigned to divided versus full attention conditions. The study also examined memorizing location‐maintained and location‐exchanged objects. In both experiments, in both incidental and intentional learning conditions, women outperformed men in memorizing location‐exchanged objects in the full but not in the divided attention condition. These findings confirm and extend previous ones concerning the conditions under which the female advantage in the detection of change in an array of objects occurs. The findings are discussed within an evolutionary conceptual framework.     

Response induction during the acquisition and maintenance of lever pressing with delayed reinforcement

The acquisition of lever pressing by rats and the occurrence of unreinforced presses at a location different from that of the reinforced response were studied using different delays of reinforcement. An experimental chamber containing seven identical adjoining levers was used. Only presses on the central (operative) lever produced food pellets. Groups of 3 rats were exposed to one of seven different tandem random-interval (RI) fixed-time (FT) schedules. The average RI duration was the complement of the FT duration such that their sum yielded a nominal 32-s interreinforcement interval on average. Response rate on the operative lever decreased as the FT value was lengthened. The spatial distribution of responses on the seven levers converged on the operative lever when the FT was 0 or 2 s and spread across the seven levers as the FT value was lengthened to 16 or 32 s. Presses on the seven levers were infrequent during the FT schedule. Both operative- and inoperative-lever pressing intertwined in repetitive patterns that were consistent within subjects but differed between subjects. These findings suggest that reinforcer delay determined the response-induction gradient.     

The female advantage in object location memory is robust to verbalizability and mode of presentation of test stimuli

This study extends Duff and Hampson's [Duff, S., & Hampson, E. (2001). A sex difference on a novel spatial working memory task in humans. Brain and Cognition,47, 470-493] finding of a sex-related difference in favor of females for an object location memory task. Twenty female and 20 male undergraduate students performed both manual and computer-generated versions of the task using stimuli that varied in degree of verbalizability. A 2x2x3 ANOVA with Sex as a between-subjects factor, and Presentation (manual or computer) and Stimuli (common objects, common shapes, and novel shapes) as within-subjects repeated measures revealed a significant main effect for Sex. Females made fewer errors than males regardless of presentation and across the three levels of verbalizability (i.e., stimulus types); moreover, the effect size was considered "large" [Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Berlin: Springer]. These findings are interpreted within the context of the current literature that demonstrates a female advantage for object location memory (e.g., [Voyer, D., Postma, A., Brake, B., & Imperato-McGinley, J. (2007). Gender differences in object location memory: A meta-analysis. Psychonomic Bulletin and Review, 14, 23-38]).     

On the effectiveness of including meaningful pictures in the formation of equivalence classes

In three experiments, 165 adult participants were trained on 12 baseline conditional discriminations and tested for the formation of three 5-member equivalence classes (A➔B➔C➔D➔E). All experiments included two reference groups; the abstract (ABS) group was trained with all abstract stimuli and the picture (PIC) group with C-stimuli as meaningful pictorial stimuli but A, B, D, and E stimuli as abstract shapes. In Experiment 1, the color of the meaningful stimuli was manipulated. In the ABS, PIC, and black-and-white groups, 33.3%, 80%, and 93.3% formed equivalence classes, respectively. In Experiment 2, participants were exposed to a test block with and without trials that included C stimuli. For the groups with and without C trials in the test, 93.3% and 86.7% formed equivalence classes, respectively, compared to 20% in the ABS group. In Experiment 3, the number of meaningful pictures and their location in stimulus classes were manipulated. One group was trained with 3 pictures (C1/B2/D3, the 3-PIC) while the other groups had 2 pictures (C1/B2 and C1/D3, the 2-PIC). In the second test block for the ABS and PIC groups, 6.7% and 86% of the participants formed equivalence classes, respectively. For the 3-PIC and the 2-PIC groups, 66.7% and 50% of the participants formed equivalence classes, respectively. Results suggest that the effects of meaningful stimuli in equivalence classes (a) cannot be attributed to the use of colorful stimuli in previous studies, (b) occur during training and are not dependent on the presence of meaningful stimuli at test, and (c) are sensitive to stimulus location.     

A Model of Sexually and Physically Victimized Women’s Process of Attaining Effective Formal Help over Time: The Role of Social Location, Context, and Intervention

As empirical evidence has demonstrated the pervasiveness of sexual assault and intimate partner violence in the lives of women, and the links to poor mental health outcomes, attention has turned to examining how women seek and access formal help. We present a conceptual model that addresses prior limitations and makes three key contributions: It foregrounds the influence of social location and multiple contextual factors; emphasizes the importance of the attainment of effective formal help that meets women's needs and leads to positive mental health outcomes; and highlights the role of interventions in facilitating help attainment. We conclude with research and practice implications.     

Residents' Attitudes About On-Site Religious Activities: A Comparison of Continuing Care Retirement Communities in Two States

ABSTRACT

Twelve older adults were interviewed in two continuing care retirement communities (CCRCs), one in Florida and the other in Wisconsin. Only the residents in Wisconsin maintained contact with local congregations, probably because most had always lived in communities not far from the CCRC. On-site religious activities such as worship and study groups were important because of the ways they ordered the week and the opportunities they offered for social interaction. In both locations, Protestant residents appreciated the opportunity to worship in ecumenical services conducted by clergy of different Protestant faith traditions. Catholic services were also available in both locations. Suggestions are offered about ways that faith communities can nourish the spiritual lives of persons living in CCRCs by working with chaplains and by conducting small prayer and study groups.     

The representation and perception of 3D space: Interactions between 2D location and depth

ABSTRACT

We live in a 3D world, and yet the majority of vision research is restricted to 2D phenomena, with depth research typically treated as a separate field. Here we ask whether 2D spatial information and depth information interact to form neural representations of 3D space, and if so, what are the perceptual implications? Using fMRI and behavioural methods, we reveal that human visual cortex gradually transitions from 2D to 3D spatial representations, with depth information emerging later along the visual hierarchy, and demonstrate that 2D location holds a fundamentally special place in early visual processing.     

平衡蒙汉双语者词汇与物理位置空间信息的语义表征

采用空间词不对称判断与Simon任务混合范式考察平衡蒙汉双语者词汇与物理位置空间信息的语义表征特点。实验一以平衡蒙汉双语者为被试,发现Simon效应所受影响在蒙汉语言间无差异。实验二以蒙-汉-英三语者为被试,发现Simon效应所受影响在汉语英语间、蒙语英语间有差异。本研究表明,平衡双语者词汇空间信息与物理位置空间信息存在共享语义表征,语言熟练程度影响一语和二语与共享表征的联结强度,验证了修正层级模型。     

空间位置对大学生逃生决策中从众行为的影响

空间位置与从众行为是影响紧急情况下人员疏散的两个重要因素,该研究在于探讨 这两个因素在人们的逃生决策中究竟如何发挥影响作用.研究采用3（空间位置）×4（人数分布）被试内实验设计对随机选取的60名大学生进行研究.结果发现,空间位置和人数分布均对疏散行为有显著影响,且两者之间存在显著的交互作用.多数人在对逃生出口选择对,距离出口的远近（所处的空间位置）是最先考虑的因素,有少部分人会表现出从众行为,而忽略空间位置.当所处位置在中间时,人数分布成为影响决策的重要因素.这说明空间位置和人数分布影响了人们的从众行为,进而影响逃生决策.