Multimodal intervention program to improve attention deficits

Is it possible to learn to attend? The purpose of this article is to provide information about the development, administration, and contrast of an intervention program to improve selective and sustained attention in students from 5 to 19 years of age, all attending school, and with difficulties to learn the academic materials corresponding to their age. Two groups participated in the study: one with difficulties in selective attention and the other with difficulties in sustained attention. The group with selective attention difficulties was made up of 102 students, of whom 59 made up the experimental group and 43 the control group. The group of students with difficulties in sustained attention was made up of 106 students, of whom 58 participated as the experimental group and 48 as the control group. The results indicate that this kind of intervention (which combines visual therapy, cortical activation, and training with activity banks) is effective to improve attentional deficits, both at the level of selective attention and of sustained attention.     

Effect of incentives on retention in an outpatient treatment for cocaine addicts

The high drop-out rate in treatment programs is one of the most important problems in the area of drug addictions. This study evaluated the effect of the use of incentives on retention in an outpatient program for cocaine addicts. The effect of individual variables on program drop-out was also analysed. Participants were 66 subjects who were randomly assigned to one of three treatment groups: standard treatment, treatment with incentives I, and treatment with incentives II. The patients of these two groups received incentives contingent on cocaine abstinence with two different magnitudes. Retention rate at six months was 35% in the standard treatment, 78.6% in the treatment with incentives I, and 53.3% in the treatment with incentives II. The global prognostic capacity of the individual variables (sociodemographic, history and consumption pattern, psychopathological variables, and EuropASI scores) was 85.7%, with the psychopathological variables being more closely related to retention. These results suggest that the use of incentives may be an effective strategy to improve retention in outpatient treatments for cocaine addiction.     

Novel fabrication of bulk Al with gradient grain size distributions via powder metallurgy

We describe a novel approach to synthesize gradient microstructures, defined hereafter as containing a broad but continuous distribution of grain sizes. These microstructures extend the concept of a bimodal grain size distribution and the ability to design with multiple length scales. We demonstrate the proposed approach via experiments involving cryogenic ball milling of Al–4.5Mg–0.4Mn–0.05Fe and Al–50Mg powder followed by subsequent consolidation. Our results reveal that the grains in the consolidated powder present a gradient size distribution ranging from <100 nm to >3 μm. Moreover, phase composition analysis revealed a unique “interfingered” structure where the two starting phases were intermixed in a complex three-dimensional mesh. Hardness studies of this gradient microstructure show average Vickers hardness values of 200 ± 2.6, 204 ± 4.3 and 266 ± 50 for macrohardness, microhardness and nanoindentation, respectively. The standard deviation values highlight that the gradient microstructure is disordered locally, but homogenous macroscopically.     

Effects of the dialectical behavioral therapy-mindfulness module on attention in patients with borderline personality disorder

It is known that patients with borderline personality disorder (BPD) show attention deficits and impulsivity. The main aim of this study was to explore the effects of Dialectical Behavioral Therapy-Mindfulness training (DBT-M), used as an adjunct to general psychiatric management (GPM), on attention variables in patients diagnosed with BPD. A second objective was to assess the relation of mindfulness formal practice on clinical variables. A sample of 60 patients with BPD was recruited. Forty of them were allocated to GPM + DBT-M treatment and the other 20 received GPM alone. At the termination of the mindfulness training, DBT-M + GPM group showed a significant improvement on commissions, hit reaction time, detectability scores from the CPT-II neuropsychological test, and also on the composite scores of inattention and impulsivity. Further, the more minutes of mindfulness practice were correlated to greater improvement in general psychiatric symptoms and affective symptomatology, but not in CPT-II measures. This is probably the first study so far assessing the effects of this single DBT module in patients with BPD. The results suggest a positive effect of such intervention on attention and impulsivity variables.     

Predator-elicited foot shakes in wall lizards (Podarcis muralis): evidence for a pursuit-deterrent function

Under certain circumstances, prey may inform potential predators of their unprofitability by means of pursuit-deterrent signals. The evidence for pursuit-deterrent signaling in reptiles is scant and taxonomically biased. Wall lizards, Podarcis muralis (Squamata: Lacertidae) produce several distinct types of stereotyped foot shake displays, of which one, performed in antipredator contexts, is a likely candidate for a pursuit-deterrent function. We investigated this possibility by recording the responses of lizards in the field to a slowly approaching human acting as a surrogate predator. In addition to starting and flight initiation distances, we measured the presence of foot shakes, the leg that was shaken, and the distance from the observer at which the display was performed (display distance). Of a total of 484 approaches, 109 (22.5%) elicited foot shake displays. Roughly half the lizards displayed from the location where they were first sighted, while the other half moved a short distance, then displayed. There was no left-right preference in the leg used to display, but most lizards displayed with the leg closer to the approaching predator. Juveniles and subadults had smaller flight initiation distances than adult lizards. There were no sex-related differences in starting or flight initiation distances, but females, for a given distance, were more likely to display than males. Foot shake display frequency declined abruptly at 1 m. If lizards waited until the surrogate predator was this close, they mostly fled without displaying. Our results show that antipredator foot shaking in P. muralis is consistent with expectations from pursuit-deterrent theory.     

Mother and Child Depressive Symptoms in Youth with Spina Bifida: Additive, Moderator, and Mediator Models

The purpose of the study was to examine the extent to which parenting behaviors influence the relation between maternal and child depressive symptoms in youth with spina bifida and a comparison sample. Previous research has found that maternal depression not only negatively impacts the mother–child relationship, but also places the child at risk for developing depressive symptoms. However, certain parenting behaviors might buffer the association between maternal and youth depression. The influence of maternal depressive symptoms and parenting behavior (i.e., acceptance, behavioral control, psychological control) on youth depressive symptoms were examined in the context of three models: (1) an additive/cumulative risk model, (2) a moderator model, and (3) a mediator model. Data were examined longitudinally at five time points when youth were 8–9 through 16–17 years of age. Results supported an additive/cumulative risk model, but did not support the moderator or mediator models. Low maternal acceptance, high behavioral control, and high psychological control were risk factors for child depressive symptoms at several time points, with maternal depressive symptoms exerting an additional risk at later time points. A group difference between the spina bifida and comparison youth was not supported. Findings indicate that in general, maternal parenting behavior is salient throughout childhood and early adolescence, but maternal depressive symptoms do not exert an influence until mid-adolescence. Family interventions should aim to promote maternal mental health and maternal parenting behaviors to reduce the risk of the development of depressive symptoms in adolescence.     

Sobre los orígenes de la psicología científica en España: El papel del movimiento krausista

Resumen

Parece incuestionable que una de las principales líneas de penetración de la psicología científica en España se realiza a través de la influencia del krausismo positivo. El presente artículo intenta analizar y comprender este fenómeno. En primer lugar, se expone la situación científica y filosófica española en el momento en que la psicología europea adquiere con Wundt el carácter de disciplina independiente: la precaria situación de la ciencia experimental en España pone en manos de los filósofos (especialmente los vinculados a la tradición krausista) la tarea de incorporar los resultados de la nueva ciencia psicológica. En segundo lugar, se destacan algunas de las principales aportaciones psicológicas de ese pensamiento krausopositivista. Y, finalmente, como explicación de este hecho, se pone de relieve la centralidad que la temática psicológica tenía ya en el pensamiento krausista anterior; es, por tanto, la fidelidad a los propios principios de este pensamiento lo que impulsa a un diálogo con la psicología europea del momento, según las directrices que ésta marcaba.     

Estrategias de decisión de un jurado bajo condiciones de simulación

Resumen

El objeto de esta investigación es analizar el proceso de decisión de un jurado bajo condiciones de simulación. A través de dos experimentos en que se manipula la forma de presentación de la información, se estudian los efectos de la regla de decisión y de las instrucciones en el veredicto y los efectos de la deliberación. Se defiende la hipótesis de que la regla de decisión y las instrucciones tienen respectivamente efectos informativos y normativos sobre el veredicto, y que la deliberación tiene efectos informativos. Estos efectos, sin embargo, sólo resultan parcialmente evidentes en el contexto de una estrategia de juicio compensatoria que supone el procesamiento analítico de la evidencia aportada en el juicio. Los resultados muestran que los sujetos cambian de estrategia cuando cambia la forma de presentación y el tipo de respuesta solicitada que es holística, de elección y no compensatoria en la presentación simultánea y analítica, de juicio y compensatoria en la presentación secuencial. Sólo cuando la deliberación supone un cambio de estrategia tiene un efecto sobre el veredicto que es más favorable que lo que lo era inicialmente para el acusado. Los resultados parecen adecuarse a un modelo de acumulación de evidencia que afecta a la evaluación de los ítems incriminatorios del caso.     

The Necessary Limits to Temptation: The Turnkey Project

In case of special engineering projects of important relevance it is interesting to pay attention to several possible risks; some of them are in the field of morality or ethics. Due to the social importance of these risks, additional considerations or even additional warranties are justified.