A Characteristic Frame for Positive Intuitionistic and Relevance Logic

Studia Logica - I show that the lattice of the positive integers ordered by division is characteristic for Urquhart’s positive semilattice relevance logic; that is, a formula is valid in...     

Tobacco Use Predicts Treatment Dropout and Outcome in an Acute,Transdiagnostic Psychiatric Treatment Setting

Tobacco use is consistently associated with greater levels of depression and anxiety, broadly, and preliminary evidence suggests that current tobacco use is a significant predictor of dropout from psychiatric treatment. The current study extends past work to examine the impact of tobacco use on treatment dropout and outcomes in an acute psychiatric treatment setting. Upon intake to a partial hospitalization program (PHP), patients completed a battery of measures assessing sociodemographic characteristics, current tobacco use, depression and generalized anxiety, and substance use. Patients at the PHP also completed measures assessing levels of depression and generalized anxiety again upon discharge from the program. In line with hypotheses, current tobacco use was a significant predictor of dropout from treatment at the PHP. Importantly, this relationship remained significant when statistically controlling for demographic variables and psychiatric and substance use severity (such as number of previous inpatient psychiatric hospitalizations and degree of alcohol or drug problems). Results from the current study indicate that tobacco use is a significant risk factor for treatment dropout. Further research is needed to replicate these findings and to determine the mechanism underlying this link between tobacco use and treatment dropout for people receiving intensive psychiatric care.     

Making plans for future success: a timeline tool feasibility study

Many adolescents have hopes of college graduation, independent living, and satisfying careers. Career preparation is an important component that can facilitate these desires. However, many adolescents do not achieve these hopes in their desired timeframes due to interruptions, such as unplanned pregnancies. As illustrated by the Theory of Adolescent Sexual Decision-Making Influencing Teen Pregnancy (Weiss, 2012. Who will listen? Rural teen pregnancy reflections. The Journal for Nurse Practitioners, 8, 804–809. doi:10.1016/j.nurpra.2012.02.028), desiring future success can promote low-risk decision-making. Based on this theory, a Getting Plans Started (GPS) Timeline Tool (GPS Timeline©) was developed to help adolescents plan for future success by using a time perspective and, thereby, avoid interruptions. The purpose of this paper is to describe the GPS Tool©, how it might be used, and a study to determine the feasibility of using the GPS Tool©. Thirty adolescents found the tool easy to use and effective in helping them plan for the future. Their responses indicated almost unanimous desires for college graduation and independence with strong confidence in achieving their plans, but their responses also indicated a need for more effective planning to achieve their desired goals.     

Cognition, action, and object manipulation

Although psychology is the science of mental life and behavior, little attention has been paid to the means by which mental life is translated into behavior. One domain in which links between cognition and action have been explored is the manipulation of objects. This article reviews psychological research on this topic, with special emphasis on the tendency to grasp objects differently depending on what one plans to do with the objects. Such differential grasping has been demonstrated in a wide range of object manipulation tasks, including grasping an object in a way that reveals anticipation of the object's future orientation, height, and required placement precision. Differential grasping has also been demonstrated in a wide range of behaviors, including 1-hand grasps, 2-hand grasps, walking, and transferring objects from place to place as well as from person to person. The populations in which the tendency has been shown are also diverse, including nonhuman primates as well as human adults, children, and babies. The tendency is compromised in a variety of clinical populations and in children of a surprisingly advanced age. Verbal working memory is compromised as well if words are memorized while object manipulation tasks are performed; the recency portion of the serial position curve is reduced in this circumstance. In general, the research reviewed here points to rich connections between cognition and action as revealed through the study of object manipulation. Other implications concern affordances, Donders' law, naturalistic observation, and the teaching of psychology. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Extinction of goal tracking also eliminates the conditioned reinforcing effects of an appetitive conditioned stimulus

Previous studies have suggested that the effects of extinction are response-specific. The present study investigated whether an extinction treatment that eliminated goal tracking elicited by an appetitive conditioned stimulus (CS) would also eliminate the conditioned reinforcing effects of that CS. Rats were first trained on a goal-tracking procedure in which an auditory CS was paired with a food unconditioned stimulus. Animals learned to approach the location where the food was delivered. In a subsequent phase, rats in one group received extinction training that eliminated the goal-tracking elicited by the CS. Rats in the other group did not experience extinction of the food-paired CS. Then, both groups received a test for conditioned reinforcement in which leverpresses resulted in the brief presentation of the stimulus previously paired with food. This stimulus did not act as a conditioned reinforcer in the group that had been subjected to extinction training, but did serve as a conditioned reinforcer in the group that did not experience extinction. These results indicate that the effects of extinction generalize from the approach-eliciting to the conditioned reinforcing effects of an appetitive CS.     

Examining dimensions of vulnerability among children in Uganda

Insufficient data on the nature and extent of children's vulnerability in Uganda has challenged government and donors in priority setting, resource allocation and developing effective approaches to improve well-being. We conducted a population-based survey among a nationally representative sample of 2551 households, covering a total of 7946 children. We engaged national stakeholders in a priority-setting exercise to develop a scoring system to assess dimensions of children's vulnerability. The exercise identified individual and household characteristics to assess vulnerability--many of which had not been measured previously--to which numerical weights representing vulnerability level were assigned. Highly weighted characteristics included maternal death, disability, child labour and pregnancy before age 17. Psychosocial elements included living apart from siblings, having nobody to talk to and never visiting a living parent. According to this approach, an estimated 51.1% of children in Uganda (weighted for national population distribution) are considered critically or moderately vulnerable. It is to these children, equivalent to a national total of 8.7 million, that support services should be prioritised. However, survey data suggest that the most critically vulnerable children are under-represented in several types of support services. This pioneering, participatory methodology provides a rudimentary, but valuable, first step towards quantifying the vulnerability of children in Uganda and assessing their resource needs. It has been used by the Government of Uganda to determine subcategories of vulnerability for resource allocation. A major advantage is that it uses local contextual knowledge of child vulnerability rather than generic criteria applied in international surveys. Further analytical work is required to validate the methodology, link it to child well-being outcomes and devise a practical tool for service providers to refine programme targeting. The approach may be useful to national, regional or local service providers seeking an overview of their client base to monitor and improve programme-targeting efforts.     

Meaningful involvement of people living with HIV/AIDS in Uganda through linkages between network groups and health facilities: an evaluation study

While community-based groups are able to provide vital support to people living with HIV/AIDS (PLHIV), their organizational and technical capacities are limited, and they frequently operate in isolation from PLHIV groups. We evaluated a three-year project implemented by the International HIV/AIDS Alliance in Uganda to increase the involvement of PLHIV in the HIV/AIDS response and to improve access to and utilization of prevention, treatment, care, and support services for households affected by HIV/AIDS. Information sources included project monitoring data, interviews with 113 key informants, and 17 focus group discussions in 11 districts. The evaluation found that PLHIV groups reached large numbers of people with education and awareness activities and made a growing number of referrals to health facilities and community-based services. The project trained individuals living openly with HIV as service providers in the community and at designated health facilities. Their presence helped to reduce the stigma that previously deterred PLHIV from seeking care and encouraged individuals to disclose their HIV status to spouses and family members. The project has put into practice the widely endorsed principles of greater and meaningful involvement of PLHIV in a systematic manner and on a large scale. A wide audience--ranging from grassroots PLHIV networks and AIDS service organizations to national-level non-governmental organizations, government agencies, and international organizations--can benefit from the lessons learned.     

Examining the association between emotion regulation difficulties and probable posttraumatic stress disorder within a sample of African Americans

This study examined the associations between emotion dysregulation and probable posttraumatic stress disorder (PTSD) among 180 African American undergraduates enrolled in a historically black college in the southern United States. Trauma-exposed participants with probable PTSD reported significantly higher levels of overall emotion dysregulation and the specific dimensions of lack of emotional acceptance, difficulties engaging in goal-directed behavior when upset, difficulties controlling impulsive behaviors when distressed, and limited access to effective emotion regulation strategies than participants without Criterion A traumatic exposure and those with Criterion A traumatic exposure but no PTSD (controlling for age and negative affect). Furthermore, results indicated that participants with Criterion A traumatic exposure but no PTSD were significantly less likely to report difficulties controlling impulsive behaviors when distressed and limited access to effective emotion regulation strategies than participants without Criterion A traumatic exposure (controlling for age and negative affect). These findings extend extant research on the role of emotion dysregulation in PTSD, thus providing support for the relevance of emotion dysregulation to PTSD among African American adults in particular.     

Inattention,working memory,and academic achievement in adolescents referred for attention deficit/hyperactivity disorder (ADHD)

This study investigated the role of inattention and working memory in predicting academic achievement in 145 adolescents aged 13 to 18 referred for attention deficit/hyperactivity disorder (ADHD). Path analysis was used to examine whether auditory-verbal and visual-spatial working memory would mediate the relationships between classroom inattention symptoms and achievement outcomes. Results provide support for the mediational model. Behavioral inattention significantly predicted both auditory-verbal and visual-spatial working memory performance. Auditory-verbal working memory was strongly associated with adolescents' achievement in reading and mathematics, while visual-spatial working memory was only associated with achievement in mathematics. The path from inattention symptoms to reading was partially mediated by the working memory variables, but the path from inattention to mathematics was not mediated by working memory. The proposed model demonstrated a good fit to the data and explained a substantial amount of variance in the adolescents' achievement outcomes. These findings imply that working memory is a risk factor for academic failure for adolescents with attentional problems.