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741.
Negative Emotions and Alcohol Use Initiation in High-Risk Boys: The Moderating Effect of Good Inhibitory Control 总被引:1,自引:0,他引:1
Studies on the relation between negative affect and later alcohol use have provided mixed results. Because definitions of negative affect often include diverse emotions, researchers have begun to dismantle this higher-order construct in an attempt to explain these inconsistent findings. More recent evidence also indicates that good inhibitory control may moderate the relation between negative emotions and alcohol use. The current longitudinal investigation examined the independent relation between three components of negative affect (i.e., depressed mood, fear, and anger) and alcohol use initiation in a sample of aggressive boys. The moderating effect of good inhibitory control was also examined. Results indicated that increased anger and decreased fearfulness are associated with an increased risk for alcohol use initiation only for boys with moderate to low levels of inhibitory control. However, depressed mood predicted alcohol use initiation for boys with good inhibitory control. The potential implications for substance use prevention efforts are discussed. 相似文献
742.
We present a framework to describe the process of conducting community-based qualitative research. Qualitative research activities are presented as a series of interrelated acts called asking, witnessing, interpreting, and knowing. Each act in the research process is described in terms of current qualitative research practices, and illustrated with examples from our own research projects on families with schizophrenia and men's mutual support and batterer intervention groups. We critically examine the assumption that qualitative research serves to reveal or amplify the voices of participants. We examine connections between qualitative research and social change and describe the use of qualitative research to not only empower marginalized groups, but also to critique and transform privileged groups. The framework is intended to help community researchers to more fully conceptualize, understand, and engage in the practice of qualitative research. 相似文献
743.
Balaban E 《Cognition》2006,101(2):298-332
Biological contributions to cognitive development continue to be conceived predominantly along deterministic lines, with proponents of different positions arguing about the preponderance of gene-based versus experience-based influences that organize brain circuits irreversibly during prenatal or early postnatal life, and evolutionary influences acting through selection on small numbers of genes. This article discusses evolutionary, mechanistic and probabilistic aspects of developmental processes that cognitive scientists need to better integrate. Developmental processes inseparably fuse experience-dependent and experience-independent components, have important stochastic contributions, and exhibit a greater degree of mechanistic continuity between developing and adult nervous systems than previously thought. Their balanced integration leads to new models for "critical or sensitive" period phenomena and behavioral biases. A general understanding of behavioral development - cognitive developmental biology--will require better coordination between comparative animal and human developmental research programs. 相似文献
744.
Eisele P 《Scandinavian journal of psychology》2003,44(5):467-477
In two experiments, one conducted at an individual level and one at a group level, it was investigated how decision strategies and the reception of decision-threatening information affect the degree of post-decision consolidation for both individual and group decision-makers. In Experiment 1, roughly half the 55 participants made decisions in three-person groups and the other half individually. The type of decision strategies subjects employed (compensatory, non-compensatory, other) was assessed by questionnaire. In two post-decision sessions, consolidation was assessed using a memory task, either decision-supporting or decision-threatening information being provided at the start of the last post-decision session. In Experiment 2, the same design and procedure were used at a group level. In both experiments, the groups (and the single group members) were analyzed with the SYMLOG instrument. The results indicated that individual decision-makers consolidated their own decisions more than members of decision-making groups. There was also greater post-decision consolidation with the use of non-compensatory decision strategies as well as with reception of decision-threatening information, this latter result being seen as providing an explanation for the greater consolidation that individual decision-makers showed. Furthermore, single task-oriented group members and groups with a task-oriented leader consolidated the decision made by their group. 相似文献
745.
Alzheimer's disease disrupts arithmetic fact retrieval processes but not arithmetic strategy selection 总被引:1,自引:0,他引:1
Three groups of healthy younger adults, healthy older adults, and probable AD patients, performed an addition/number comparison task. They compared 128 couples of additions and numbers (e.g., 4 + 9 15) and had to identify the largest item for each problem by pressing one of two buttons located under each item. Manipulations of problem characteristics (i.e., problem difficulty and splits between correct sums and proposed numbers) enabled us to examine strategy selection and specific arithmetic fact retrieval processes. Results showed that arithmetic facts retrieval processes, which were spared with aging, were impaired in AD patients. However, AD patients were able to switch between strategies across trials according to problem characteristics as well as healthy older adults, and less systematically than healthy younger adults. We discuss implications of these findings for further understanding AD-related differences in arithmetic in particular, and problem solving in general. 相似文献
746.
Costanzi M Battaglia M Populin R Cestari V Castellano C 《Neurobiology of learning and memory》2003,79(3):204-211
Five sets of experiments were carried out with CD1 mice tested in a one-trial inhibitory avoidance task. In a first set, immediately posttraining administrations of the endogenous ligand for the cannabinoid CB1 receptor anandamide (arachidonylethanolamide) (3 or 6 mg/kg) dose-dependently impaired memory consolidation in mice. A lower dose (1.5 mg/kg) was ineffective. In a second set of experiments, which was carried out at the same time of the first set, preexposure of the animals to the testing apparatus decreased the effect of the drug, as compared with non-preexposed mice. In a third set of experiments, administration of anandamide (3 or 6 mg/kg) prior to the retention test did not affect the retention performance of mice given posttraining injections of either saline or anandamide. These findings indicate that the memory-impairing effects of posttraining administration of anandamide are not state-dependent. In the fourth and fifth series of experiments, carried out with non-preexposed mice, an otherwise ineffective immobilization stress (15 min) enhanced the memory-impairing effect of anandamide, and an otherwise ineffective dose of naltrexone (0.1 mg/kg) completely antagonized the effect. The results are discussed in terms of attenuation of emotionality, resulting in impaired retention, following anandamide administration, and of involvement of opioid system in the effect of this drug. 相似文献
747.
We review ideas about individual differences in sensitivity or responsiveness to common disciplinary behaviors parents use to correct aggressive and antisocial behavior in children. At extremes, children may be seen as punishment-insensitive, an heuristic with some value relevant to models of the development of antisocial and aggressive behavior disorders. Literature from diverse fields, such as psychopathy, child temperament, socialization and the development of moral conscience, conditioning theory, and personality theory, have all utilized the idea that humans differ in their sensitivity to aversive stimuli and the cues that signal their occurrence, as well as their ability to inhibit reward-driven behavior, in the presence of punishment cues. Contemporary thinking places these dispositions squarely as basic biological aspects of temperament that moderate the effects of the environment (e.g., parenting) on outcomes (e.g., mental health). We review a largely forgotten literature that shows clearly that sensitivity to punishment is also reliably influenced by the environment itself. An attempt is then made to model the interactional processes by which parenting and punishment sensitivities in children magnify or diminish each other's progress toward healthy or antisocial development. Implications for parenting of children with low responsiveness to punishment strategies are discussed. 相似文献
748.
749.
750.
We examined the effects of safety-seeking behavior and guided threat focus and reappraisal on fear reduction during exposure. Participants (N=46) displaying marked claustrophobic fear were randomized to one of three 30-min exposure conditions: (a) guided threat focus and reappraisal; (b) safety-behavior utilization; or (c) exposure only control. Tripartite outcome assessments during a behavioral approach test, along with measures of suffocation and restriction fears were obtained at pre- and post-treatment, and at a 2-week follow-up. Treatment process measures were collected throughout treatment and consisted of indices of fear activation; within and between-trial fear habituation; and suffocation and entrapment expectancies. Measures of safety behavior utilization and attentional focus were also collected to assess the integrity of the experimental manipulations. Consistent with prediction, those encouraged to utilize safety-behaviors during exposure showed significantly more fear at post-treatment and follow-up relative to those encouraged to focus and reevaluate their core threat(s) during exposure. Moreover, growth curve analyses of treatment process data analyses revealed that safety-behavior utilization exerted a detrimental effect on between-trial habituation; whereas guided threat reappraisal enhanced between-trial habituation. 相似文献