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251.
Journal of Religion and Health - The brutal disruptions caused by the novel coronavirus (COVID-19) pandemic require dynamic ways of responding, not only to the informational needs of communities,...  相似文献   
252.
Objective: This study investigated the importance of the combination of the hostility and defensiveness variables as psychosocial factors that predict the risk of cardiovascular dysfunction. We examined the impact of a stressful situation on blood pressure responses, using a continuous psychophysiological assessment approach.

Design: We measured the evolution of these responses over three experimental phases (adaptation, task and recovery), also considering a minute-by-minute analysis within each phase.

Main Outcome Measures: We used the Cook-Medley Hostility Scale and the Social Desirability Questionnaire to form four groups (high hostility and high defensiveness, high hostility and low defensiveness, low hostility and high defensiveness, and low hostility and low defensiveness).

Results: We expected the group of hostile defensive women to record higher activation (task phase: an academic exam) and slower habituation (recovery phase) compared to the other groups. The results confirmed our hypothesis, as the profile of the hostile defensive individuals was one of constant or sensitization during the task phase, while during the recovery phase those individuals underwent a slow recovery.

Conclusion: Therefore, it can be indicated that the low hostility and low defensive group is the most adaptive, as recorded very little activation in response, and rapid recovery.  相似文献   

253.
This study examines the relationships between temperament traits (negative affectivity, extraversion and effortful control) and children’s externalized and internalized behavioral problems. The sample was composed of 424 children from the ages of 3–6 years old (60% male). Use of a hierarchical regression analysis revealed direct and interactive effects. Specifically, reactive temperamental traits were found to predict behavioral problems in children: negative affect tended to increase externalizing problems, and extraversion tended to decrease internalizing problems. The regulative temperament trait (“effortful control”) negatively predicted both internalizing and externalizing problems. To explore moderating effects, post‐hoc analyses were conducted using the Johnson–Neyman technique with Hayes’s PROCESS. Our analyses revealed that high levels of negative affect (characterized in our study by a higher load of anger or frustration than of fear or sadness) makes a significant and strong contribution to internalizing problems when effortful control reaches its highest levels. Thus, our results endure the protective role of extraversion as preventing the emergence of internalizing problems, and the protective role of effortful control as preventing the emergence of both, internalizing and externalizing, problems. The results also alert to the potential risk of a combination between high levels of effortful control and high levels of negative affect. Overall findings are discussed with regard to previous and future research.  相似文献   
254.
Many studies have verified the validity of the Career Adapt-Abilities Scale in diverse samples, both adolescents and adults. However, which abilities are more typical of each group remains unknown. This study investigated the CAAS factorial structure with Brazilian adolescents, to verify differences between adolescents and adults and to explore the occurrence of differential item functioning analysis (DIF), by considering these two groups as independent variables. The two Brazilian samples were composed by adolescents (n = 272) and by adult workers (n = 404). Results confirmed the expected factorial structure in the adolescents sample and that adults scored higher on all CAAS factors. DIF analysis identified more items favored adults, as expected, but there was coherence in item content which favored each group. Nevertheless, there is no psychometric evidence supporting the need for different forms of CAAS for each group. Results are discussed by taking into account the practical implications of the findings.  相似文献   
255.
A simple, bivalent semantics is defined for ?ukasiewicz’s 4-valued modal logic ?m4. It is shown that according to this semantics, the essential presupposition underlying ?m4 is the following: A is a theorem iff A is true conforming to both the reductionist (rt) and possibilist (pt) theses defined as follows: rt: the value (in a bivalent sense) of modal formulas is equivalent to the value of their respective argument (that is, ‘ A is necessary’ is true (false) iff A is true (false), etc.); pt: everything is possible. This presupposition highlights and explains all oddities arising in ?m4.  相似文献   
256.
257.
Negative emotional pictures from the International Affective Pictures System (IAPS) have been successful in mapping brain areas related to the aversive system. However, the capacity of positive emotional pictures to study the brain areas related to the appetitive system (i.e., nucleus accumbens, prefrontal cortex) is less established. In this study, we used a block fMRI design to investigate this issue, including emotional pictures as background while participants performed a vowel-consonant discrimination task. Importantly, participants were heterosexual males and all positive pictures were related to erotic couples, opposite-sex erotica, or romantic scenes. Negative pictures were similar to those used in previous studies. Results were consistent with previous studies using event-related designs, showing activation of amygdala, lateral prefrontal cortex, and occipito-temporal areas, but positive pictures showed a significant activation in the left nucleus accumbens. These findings provide evidence of the utility of block designs in emotional research (positive emotional pictures).  相似文献   
258.
In this paper, we used the data of Mathematics achievements from the sample of 13- year-old Spanish boys and girl who took part in the Second National Assessment of Educational Progress, carried out by the Educational Testing Service. With the aim of identifying variables related to high achievement, our goals are: 1) to analyse whether there are significant differences in 13-year-old Spanish boys and girls in their attitudes towards mathematics, their study strategies, and their performance; 2) to analyse the influence of their attitudes and study strategies on their performance, and to examine whether these relations are the same in boys and girls; 3) to propose a theoretical model that explains the relationship among the variables defined by means of structural equation modelling. The results show that: a) there are significant differences between boys and girls in the variables studied; b) it is not possible to reject the proposed model that relates study strategies and attitudes towards performance in mathematics; and c) the model tends to be stable both among boys and girls.  相似文献   
259.
Adenosine receptors in the central nervous system have been implicated in the modulation of different behavioural patterns and cognitive functions although the specific role of A(2A) receptor (A(2A)R) subtype in learning and memory is still unclear. In the present work we establish a novel transgenic rat strain, TGR(NSEhA2A), overexpressing adenosine A(2A)Rs mainly in the cerebral cortex, the hippocampal formation, and the cerebellum. Thereafter, we explore the relevance of this A(2A)Rs overexpression for learning and memory function. Animals were behaviourally assessed in several learning and memory tasks (6-arms radial tunnel maze, T-maze, object recognition, and several Morris water maze paradigms) and other tests for spontaneous motor activity (open field, hexagonal tunnel maze) and anxiety (plus maze) as modification of these behaviours may interfere with the assessment of cognitive function. Neither motor performance and emotional/anxious-like behaviours were altered by overexpression of A(2A)Rs. TGR(NSEhA2A) showed normal hippocampal-dependent learning of spatial reference memory. However, they presented working memory deficits as detected by performance of constant errors in the blind arms of the 6 arm radial tunnel maze, reduced recognition of a novel object and a lack of learning improvement over four trials on the same day which was not observed over consecutive days in a repeated acquisition paradigm in the Morris water maze. Given the interdependence between adenosinic and dopaminergic function, the present results render the novel TGR(NSEhA2A) as a putative animal model for the working memory deficits and cognitive disruptions related to overstimulation of cortical A(2A)Rs or to dopaminergic prefrontal dysfunction as seen in schizophrenic or Parkinson's disease patients.  相似文献   
260.
Using a visual search methodology we investigated the effect of feared animal stimuli on attention. Our results confirmed the important role of emotion on attention. All participants detected fear-relevant stimuli (snakes and spiders) faster than neutral (mushrooms) ones against a background of fruits. In addition, spider fearful participants were sensitized specifically to detect their feared stimulus (spiders), compared to their fear-relevant but non-feared (snakes) and neutral stimuli. However, for participants fearful of snakes there was no significant difference in detection latencies between the feared (snakes) and the fear-relevant but non-feared animal stimuli (spiders). The results from the attention task were mirrored in the emotional ratings, which showed that spider fear was highly specific, whereas snake fear was associated with a more generalized enhanced evaluation of all negative stimuli.  相似文献   
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