Exploring children’s movement characteristics during virtual reality video game play

There is increasing interest in the use of commercially-available virtual reality video gaming systems within pediatric rehabilitation, yet little is known about the movement characteristics of game play. This study describes quantity and quality of movement during Nintendo Wii and Wii Fit game play, explores differences in these movement characteristics between games and between novice and experienced players, and investigates whether motivation to succeed at the game impacts movement characteristics. Thirty-eight children (aged 7–12) with and without previous game experience played Wii (boxing and tennis) and Wii Fit (ski slalom and soccer heading) games. Force plate data provided center of pressure displacement (quantity) and processed pelvis motion indicated smoothness of pelvic movement (quality). Children rated their motivation to succeed at each game. Movement quantity and quality differed between games (p < .001). Children with previous experience playing Wii Fit games demonstrated greater movement quantity during Wii Fit game play (p < .001); quality of movement did not differ between groups. Motivation to succeed did not influence the relationship between experience and outcomes. Findings enhance clinical understanding of this technology and inform the development of research questions to explore its potential to improve movement skills in children with motor impairments.     

Electronic Communication Use and Socio-Emotional Well-Being among Military Youth

The authors seek to investigate the relationship between electronic-communication (e-communication) use and social isolation for adolescents age 11–18 in the context of military family life, with a specific focus on relationship function provided by e-communication. Self-efficacy, developmental stage (early or middle/late adolescence), sex, and military contextual factors (parents’ military rank, number of school changes and parent deployment) on social benefits and social isolation were controls in the model. Data from a computer survey administered to adolescents (N?=?1036) who had at least one active-duty military parent at five US Army installations in the US and Western Europe were analyzed using a path analysis model. Findings suggest that using e-communication to establish new relationships may be strategic for military youth, who experience many geographic relocations and school changes, in terms of creating social benefits (opportunity for nurturance). On the other hand, spending large amounts of time using e-communication may impede the establishment of nurturing relationships with others and ultimately may be linked to social isolation. Within the model, significant moderational effects related to self-efficacy, sex of the adolescent and parents’ military rank were found.     

Stressful Life Events,Psychopathology, and Adolescent Suicide: A Case Control Study

The relationship between stressful life events and adolescent suicide was assessed in 67 adolescent suicide victims and 67 matched community controls. In the year before death, suicide completers were more likely to have experienced: (1) interpersonal conflict with parents and with boy/girlfriends, (2) disruption of a romantic attachment, (3) legal or disciplinary problems. Legal or disciplinary problems were more commonly associated with suicide in conduct and substance abuse disordered youth. Interpersonal loss was more commonly associated with suicide in substance abuse as well. Even after controlling for psychopathology, legal and disciplinary problems in the past year were associated with an increased risk of suicide.     

Two Kinds of Feminist Philosophy

This article makes a distinction between two kinds of feminist philosophy. One looks ‘up’ to the realm of philosophy and aims to intervene in this realm in order to make it feminist. The other looks ‘down’ to the world of human experience and aims to make it feminist. This article argues that feminist philosophers’ efforts are better spent on the second kind of feminist philosophy. Feminist philosophy can better achieve its aims by applying philosophy to the critical analysis of women's lives and gender norms, rather than by attempting to change the discipline of philosophy itself.     

TISK 1.0: An easy-to-use Python implementation of the time-invariant string kernel model of spoken word recognition

This article describes a new Python distribution of TISK, the time-invariant string kernel model of spoken word recognition (Hannagan et al. in Frontiers in Psychology, 4, 563, 2013). TISK is an interactive-activation model similar to the TRACE model (McClelland & Elman in Cognitive Psychology, 18, 1–86, 1986), but TISK replaces most of TRACE’s reduplicated, time-specific nodes with theoretically motivated time-invariant, open-diphone nodes. We discuss the utility of computational models as theory development tools, the relative merits of TISK as compared to other models, and the ways in which researchers might use this implementation to guide their own research and theory development. We describe a TISK model that includes features that facilitate in-line graphing of simulation results, integration with standard Python data formats, and graph and data export. The distribution can be downloaded from https://github.com/maglab-uconn/TISK1.0.     

Androgyny in Psychotherapy: But Will It Sell in Peoria?

Androgyny, as conceptualized in psychology, is based on traditional masculine and feminine stereotypes. Masculine characteristics (as measured by two commonly used sex role inventories) contribute more to measures of self-esteem than do feminine characteristics from the same inventories, indicating that masculine characteristics have more functional value in our culture. Traditionally feminine characteristics are not highly valued by either clients or therapists. However, therapists need to be aware of potential costs to women who make nontraditional choices, moving toward androgyny. It is questionable that androgynous women are perceived in the same favorable manner as androgynous males, particularly in a traditional social context. The consequences of internal and external conflicts created by moving toward androgyny or by devaluation of feminine characteristics cannot be dismissed lightly. Psychotherapists must be willing to assist clients with the external problems that psychological research has demonstrated exist for women who either must or choose to function in roles that are not traditional.     

A study of the antecedents and consequences of psychological ownership in organizational settings

Psychological ownership is a feeling of possession in the absence of any formal or legal claims of ownership. In this study, the authors aimed to extend previous empirical testing of psychological ownership in work settings to encompass both job-based and organization-based psychological ownership as well as related work attitudes and behavioral outcomes. Questionnaire data from 68 employees and their managers revealed that job-based psychological ownership and organization-based psychological ownership are distinct work attitudes that are distinguishable from job satisfaction and organizational commitment. Psychological ownership predicted job satisfaction and organizational commitment and mediated the relationship between autonomy and these work attitudes. There was no support for a relationship between psychological ownership and behavioral outcomes. The authors discuss the limitations of the study and the implications of psychological ownership.     

Role of matrix metalloproteinases in the acquisition and reconsolidation of cocaine-induced conditioned place preference

Persistent drug seeking/taking behavior involves the consolidation of memory. With each drug use, the memory may be reactivated and reconsolidated to maintain the original memory. During reactivation, the memory may become labile and susceptible to disruption; thus, molecules involved in plasticity should influence acquisition and/or reconsolidation. Recently, matrix metalloproteinases (MMPs) have been shown to influence neuronal plasticity, presumably by their regulation of extracellular matrix (ECM) molecules involved in synaptic reorganization during learning. We hypothesized that inhibition of MMP activity would impair the acquisition and/or reconsolidation of cocaine-conditioned place preference (CPP) in rats. Intracerebral ventricular (i.c.v.) microinjection of a broad spectrum MMP inhibitor, FN-439, prior to cocaine training suppressed acquisition of CPP and attenuated cocaine-primed reinstatement in extinguished animals. In a separate experiment, the cocaine memory was reactivated on two consecutive days with a cocaine priming injection. On these two days, artificial cerebral spinal fluid (aCSF) or FN-439 was administered either 30 min prior to or 1 min after cocaine-primed reinstatement sessions. Infusion of FN-439 partially impaired retrieval of the cocaine-associated context when given 30 min prior to cocaine. In both groups, however, FN-439 suppressed reinstatement compared with controls on the third consecutive test for cocaine-primed reinstatement, when no FN-439 was given. Control experiments demonstrated that two injections of FN-439 + cocaine given in the home cage, or of FN-439 + saline priming injections in the CPP chambers did not disrupt subsequent cocaine-primed reinstatement. These results show for the first time that (1) MMPs play a critical role in acquisition and reconsolidation of cocaine-induced CPP, and (2) rats demonstrate apparent disruption of reconsolidation by an MMP inhibitor after extinction and while they are under the influence of cocaine during reinstatement.     

Maternal and Paternal Parenting Styles in Adolescents: Associations with Self-Esteem,Depression and Life-Satisfaction

Our study examined variations in adolescent adjustment as a function of maternal and paternal parenting styles. Participants included 272 students in grades 9 and 11 from a public high school in a metropolitan area of the Northeastern US. Participants completed measures of maternal and paternal parenting styles and indices of psychological adjustment. Authoritative mothering was found to relate to higher self-esteem and life-satisfaction and to lower depression. Paternal parenting styles was also related to psychological adjustment, however, although the advantage of authoritative mothering over permissive mothering was evident for all outcomes assessed, for paternal styles the advantage was less defined and only evident for depression. Our study highlights the importance of examining process-oriented agents as part of the broader interest in well-being variations in adolescents.