Offender and crime characteristics of female serial arsonists in Japan

This study of Japanese female serial arsonists examined their crimes and background characteristics. The data were a sample from the national police register containing arson cases resulting in charges in Japan between 1982 and 2005. Serial arsonists were 6% of the arson offenders and 12% of these were female, resulting in 83 female serial arsonist data sets. The mean age was 37.6 years and 43% were unemployed. Nearly half were married. Only 28% had a documented history of mental problems and 22% had a prior arrest, usually for theft (19%). Female serial arsonists are characterised by going to a place near their home with a lighter and setting fire directly to combustible materials. Non‐metric multidimensional scaling was used to analyse 33 variables related to the offences. The arsons could be differentiated in terms of either expressive or instrumental sources of action. Expressive arsons were opportunistic and impulsive acts, motivated by emotional distress. The fires were mostly set close to home. Expressive arsons were characteristic of 66% of the females. Instrumental arsons were often motivated by revenge and involved planned and goal‐directed behaviours. They were committed by 13% of the females. Instrumental arsonists tended to travel further from home. Copyright © 2007 John Wiley & Sons, Ltd.     

Wellbeing through Self-Fulfilment: Examining Developmental Aspects of Self-Actualization

Self-actualization is described as an individual's expression of their full potential and a desire for self-fulfilment. It is the leading need in Maslow's hierarchical motivation theory (Maslow, 1943 Maslow , A. H. ( 1943 ). Conflict, frustration, and the theory of threat . Journal of Abnormal Social Psychology , 38 , 81 – 86 .[Crossref] , [Google Scholar]) which does not specify an age range for each level, believing that individuals progress through the hierarchy at different rates. However, he recognises older adults are more likely than young adults to be concerned with higher motivation (Maslow, 1970 Maslow , A. H. ( 1970 ). Motivation and personality . New York : Harper & Row . [Google Scholar]). Previous work has revealed that people over the age of 36 have a tendency to be concerned with higher motives and people under this age with lower motives (Reiss & Havercamp, 2005 Reiss , S. , & Havercamp , S. M. ( 2005 ). Motivation in a developmental context: A new method for studying self-actualization . Journal of Humanistic Psychology , 45 , 41 – 53 .[Crossref], [Web of Science ®] , [Google Scholar]). This study looks at the influence of age on the level of self-actualization and discovered that on 8 out of the 12 Personal Orientation Inventory (POI) scales, participants over the age of 36 showed higher levels of self-actualization than participants under the age of 36. These results indicate the relevance of developmental issues in this matter and back up the hypothesis that there is a relationship between one's age and levels of self-actualization. However, results also showed a degree of overlap of self-actualization scores across age groups, suggesting further research may find other important factors, beyond age, which have a relationship with self-actualization.     

High risk factors of hostage barricade incidents in a Japanese sample

Hostage taking incidents in which the police besiege a particular location are known as hostage barricade incidents. The first aim of the present article was to examine the process of risk assessment in hostage incidents, using a group of police officers as the sample. The second aim was to identify the risk factors involved in hostage incidents and examine the degree of concordance between the risk as assessed by the police officers and the figures obtained from the analysis of actual hostage barricade incidents. For the purpose of this study, a survey was carried out across Japan, and 45 police officers responsible for hostage negotiation responded to the questionnaires. Additionally, a sample of 116 actual hostage barricade incidents that occurred in Japan from 1970 to 2002 was utilised to examine the high risk factors involved in such cases. As per the results, a majority of the police officers (73.3%), in response to an open‐ended question, indicated that the highly excited state of the hostage takers was dangerous for the hostages. Moreover, it was demonstrated in all 116 incidents that several factors such as ‘a long siege’ tended to increase the risk of deaths, though this was very rare (n = 4). On the other hand, the proportion of injuries to the hostages was high in expressive situations such as domestic situations or suicide attempt scenarios. On the whole, the results obtained from the analyses of actual incidents were consistent with those obtained from the police officers' risk assessment in many respects. However, the correlation between the degree of risk as assessed by the police officers and the actual rate of deaths/injuries to the hostages was very low. Copyright © 2004 John Wiley & Sons, Ltd.     

Effects of background color on detecting spot stimuli in the upper and lower visual fields

Participants were required to detect spot stimuli briefly presented to the upper, central, or lower visual fields. The stimuli were presented either on a green or a red background. Results showed that reaction time (RT) was shorter for the lower visual field (LVF) compared to the upper visual field (UVF). Furthermore, this LVF advantage was significantly reduced in the red background condition compared to the green one. A red light is known to suppress activity of the magno-dominated stream. Therefore, the LVF advantage in RT can be explained as resulting from the biased representation of the magno-dominated stream in the LVF.     

Application of the behavioral investigative support system for profiling perpetrators of serial sexual assaults

The authors developed a data-based profiling system in order to support offender profiling. The system stored incident records of prior offenders. Inputting offence details of an unsolved incident, a probability score was assigned to each prior offender in the system; the score represented the behavioral similarity with the unsolved incident. The system then ranked all offenders in the system according to the probability scores, and prioritized the high-ranked offenders as possible suspects. Moreover, the system inferred the characteristics of unknown offenders by accumulating characteristics of the high-ranked offenders. The system achieved promising accuracy, especially for linking crimes to perpetrators. In 45 out of 81 simulation trials, the target offenders were retrieved as a rank score of 1 from among 868 sex offenders.     

Perceptual learning in monocular pattern masking: experiments and explanations by the twin summation gain control model of contrast processing

We investigated practice effects on contrast thresholds for target patterns. Results showed that practice decreased contrast thresholds when targets were presented on maskers. Thresholds tended to decrease more at the higher end of the masker contrast range. At least partially, learning transferred to stimuli of the untrained phase. We simulated changes in threshold versus contrast functions using a contrast-processing model and then fit the model to pre- and posttraining data. The simulation results and model fit suggest that learning in pattern masking can be accounted for by changes in nonlinear transducer functions for divisive inhibitory signals.     

Urban Thinkscape: Infusing Public Spaces with STEM Conversation and Interaction Opportunities

ABSTRACT

How can we transform places where people gather or wait into hubs for interaction and playful learning? Bus stops offer one setting in which to test this idea. Urban Thinkscape reimagines an everyday bus stop in an under-resourced area as an interaction zone instead of merely a place to wait for a ride. Results suggest that embedding playful learning into architectural design is associated with increases in targeted types of caregiver interaction and child language use. Compared to pre-installation data as well as data from a control site (a neighborhood playground), Urban Thinkscape suggests that we can build public spaces in ways that invite the kinds of interactions known to support later learning in language and STEM.