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841.
This study investigates how game playing experience changes when a story is added to a first‐person shooter game. Dependent variables include identification, presence, emotional experiences and motivations. When story was present, game players felt greater identification, sense of presence, and physiological arousal. The presence of story did not affect self‐reported arousal or dominance. This study clearly demonstrates that story is something that video game players enjoy; it helps involve them in the game play, makes them feel more immersed in the virtual environment, and keeps them aroused. The greater character identification may be especially worrisome, as past research has shown that justified media violence disinhibits actual aggression on the part of the audience.  相似文献   
842.
In studies of child development, the combined effect of multiple risks acting in unison has been represented in a variety of ways. This investigation builds upon this preceding work and presents a new procedure for capturing the combined effect of multiple risks. A representative sample of 2,899 British children had their cognitive development measured at 36 and 58 months of age along with 10 potential risks during this period of development. Comparing a cumulative index of these risks against the previously undocumented alternative of confirmatory factor analysis using formative measurement, this study found differences favouring the factor analysis. The factor analysis procedure demonstrated greater predictive power of children's cognitive development while it systematically tested two of the assumptions implicit in cumulative risk indices.  相似文献   
843.
The fundamental principle of the theory of possible worlds is that a proposition p is possible if and only if there is a possible world at which p is true. In this paper we present a valid derivation of this principle from a more general theory in which possible worlds are defined rather than taken as primitive. The general theory uses a primitive modality and axiomatizes abstract objects, properties, and propositions. We then show that this general theory has very small models and hence that its ontological commitments—and, therefore, those of the fundamental principle of world theory—are minimal.  相似文献   
844.
What are the competences required to satisfactorily practice effective or “good enough” psychoanalytic supervision? In this paper, I would like to consider that question. Over the past approximate 15-year period, increasing attention has been directed toward more specifically identifying and defining the components of competent psychoanalytic practice. But any parallel attention toward identifying and defining the components of competent psychoanalytic supervision practice has, in comparison, been sorely limited if not virtually absent. If we are to best practice competent psychoanalytic supervision and best train future psychoanalytic supervisors for competent practice, effort needs to be made to concretely delineate the competences that are requisite for such practice. In what follows, I present and adapt six broad-based families of internationally relevant supervision competence areas for use in psychoanalytic supervision: (1) knowledge about/understanding of psychoanalytic supervision models, methods, and intervention; (2) knowledge about/skill in attending to matters of ethical, legal, and professional concern; (3) knowledge about/skill in managing psychoanalytic supervision relationship processes; (4) knowledge about/skill in conducting psychoanalytic supervisory assessment and evaluation; (5) knowledge about/skill in fostering attention to difference and diversity; and (6) openness to/utilization of a self-reflective, self-assessment stance in psychoanalytic supervision. Although by no means an exhaustive list, 30 supervision competences (five per family) are proposed as significant for guiding competent psychoanalytic supervision practice and supervisor training, and a brief explanatory comment is offered in support of each broad-based family of competences.  相似文献   
845.
Acute treatment aftercare in the form of sober living environments—i.e., recovery houses—provide an inexpensive and effective medium-term treatment alternative for many with substance use disorders. Limited evidence suggests that house-situated social relationships and associated social support are critical determinants of how successful these residential experiences are for their members, but little is known about the mechanisms underlying these relationships. This study explored the feasibility of using dynamic social network modeling to understand house-situated longitudinal associations among individual Alcoholics Anonymous related recovery behaviors, length of residence, dyadic interpersonal trust, and dyadic confidant relationship formation processes. Trust and confidant relationships were measured 3 months apart in U.S. urban-area recovery houses, all of which were part of a network of substance use recovery homes. A stochastic actor-based model was successfully estimated from this data set. Results suggest that confidant relationships are predicted by trust, while trust is affected by recovery behaviors and length of residence. Conceptualizing recovery houses as a set of independent, evolving social networks that can be modeled jointly appears to be a promising direction for research.  相似文献   
846.
847.
Relational concepts—such as connectedness—may be easy for human adults to appreciate; but, obtaining evidence of other species’ understanding of connectedness has been challenging. One key test of connectedness involves an organism’s responding to variants of the string task. Using a virtual string task, we gave pigeons a pair of strings from which to choose: one connected to a full dish of food and a second disconnected from another full dish of food. Our pigeons did not at first choose the connected string under conditions of non-differential reinforcement; later, the birds rapidly learned to choose the connected string under conditions of differential reinforcement. Our results replicate prior findings with real strings and food dishes, thereby demonstrating that pigeons can appreciate the connectedness between a string tether and a dish of food, and attesting to the utility and fidelity of the virtual string task.  相似文献   
848.
Orienting toward emotionally salient information can be adaptive, as when danger needs to be avoided. Consistent with this idea, research has shown that emotionally valenced information draws attention more so than does neutral information in healthy individuals. However, at times this tendency is not adaptive, and it may distract the individual from goals. People with schizophrenia (PSZ), though they frequently show deficits in attentional control, have also been shown to exhibit diminished recognition of and attention to emotional information. In the present study, we investigated how the presentation of emotionally salient information affected performance on a working memory task for PSZ and healthy controls (HC). We found that although hit rates were equal to those of HCs for PSZ, the PSZ made fewer false alarms—resulting in overall better performance—than did the HCs. Deficits in emotional processing in PSZ appear to provide an advantage to them in situations in which salient emotional information competes with active cognitive goals.  相似文献   
849.
The concept of capacity has become increasingly important in discussions of working memory (WM), in so far as most models of WM conceptualize it as a limited-capacity mechanism for maintaining information in an active state, and as capacity estimates from at least one type of WM task—complex span—are valid predictors of real-world cognitive performance. However, the term capacity is also often used in the context of a distinct set of WM tasks, change detection, and may or may not refer to the same cognitive capability. We here develop maximum-likelihood models of capacity from each of these tasks—as well as from a third WM task that places heavy demands on cognitive control, the self-ordered WM task (SOT)—and show that the capacity estimates from change detection and complex span tasks are not correlated with each other, although capacity estimates from change detection tasks do correlate with those from the SOT. Furthermore, exploratory factor analysis confirmed that performance on the SOT and change detection load on the same factor, with performance on our complex span task loading on its own factor. These findings suggest that at least two distinct cognitive capabilities underlie the concept of WM capacity as it applies to each of these three tasks.  相似文献   
850.
The use of psychotropic medications is a significant factor in the overall effort to respond to detained youth with mental illness, yet there are very few studies of psychotropic medication use in juvenile detention settings. It is important to understand the factors that influence the use of mental health services and psychoactive medications in these settings since youth with emotional problems are overrepresented in them. This paper addresses the proportion of youth in these settings who receive mental health services and psychoactive medications. In addition, the impact of a major statewide policy change—the shift of juvenile placement responsibility from the state to local government—on these proportions was examined using 8 years of publicly available data from county probation departments. Multivariate regression analyses of 1,760 observations of quarterly reports from 55 counties showed that the use of both mental health services and psychoactive medications in detention facilities increased concurrently with the policy change. While these proportions had already been gradually increasing in these facilities, it appears that after the policy change they increased even more. This contradicts the aim of most juvenile justice planners—to divert non-violent youth offenders with emotional problems away from incarceration settings and towards community based treatment alternatives. If adequately available, these support services could provide diversion alternatives to prevent inappropriate detentions, and to provide post-detention treatment to prevent lapses in continuity of care and, ultimately, to prevent reoffending.  相似文献   
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