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231.
Neurocognitive mechanisms of anxiety: an integrative account 总被引:4,自引:0,他引:4
Bishop SJ 《Trends in cognitive sciences》2007,11(7):307-316
Anxiety can be hugely disruptive to everyday life. Anxious individuals show increased attentional capture by potential signs of danger, and interpret expressions, comments and events in a negative manner. These cognitive biases have been widely explored in human anxiety research. By contrast, animal models have focused upon the mechanisms underlying acquisition and extinction of conditioned fear, guiding exposure-based therapies for anxiety disorders. Recent neuroimaging studies of conditioned fear, attention to threat and interpretation of emotionally ambiguous stimuli indicate common amygdala-prefrontal circuitry underlying these processes, and suggest that the balance of activity within this circuitry is altered in anxiety, creating a bias towards threat-related responses. This provides a focus for future translational research, and targeted pharmacological and cognitive interventions. 相似文献
232.
In this study, individuals and interacting 3‐person groups were asked to make a series of allocation decisions using a modified version of the A&S decision case (Staw, 1976). Based on the choice‐shift effect, it was hypothesized that groups would allocate more to a failing course of action than would individuals, and that these differences would emerge only after repeated sequential decisions. Both hypotheses were supported. These findings suggest that processes unique to groups account for the greater allocations of groups, relative to individuals in escalation situations. The implications of these findings in applied settings are discussed. 相似文献
233.
Sonia A. Sofia Paul H. Lysaker Giancarlo Dimaggio 《Journal of Contemporary Psychotherapy》2017,47(4):223-232
Treatment adherence by patients with HIV ensures they gain the full benefit of antiretroviral medications and extend their lives. One problem which may contribute to poor adherence is deficits in metacognition or the capacity to make sense of mental states. In particular, persons who struggle to notice and think about their thoughts and feelings may be less able to direct their own recovery by taking advantage of effective treatments. This raises the possibility that treatments which lead to improved metacognitive function may enhance treatment adherence. We describe the case of a man in an advanced stage of AIDS with Kaposi’s sarcoma. The patient was treated with Metacognitive Interpersonal Therapy combined with psychoeducation about pharmacological treatment for HIV. Primary medical outcomes were suppression of viral load, increase of CD4 count and control of AIDS related conditions such as Kaposi’s sarcoma. The primary psychological outcome was reduction of personality disorders criteria. The patient was able to understand what led him to discontinue medication and then later regain full adherence. He achieved suppression of viral load and restore of CD4 count. As regard severity of personality disorder, he achieved reliable change. Interventions such as Metacognitive Interpersonal Therapy may assist patients with HIV to gain the metacognitive capacities to make sense of their medical and psychological challenges and adhere to antiretroviral therapies leading to enhanced levels of health. Future studies are needed to explore these findings in larger controlled studies. 相似文献
234.
235.
Min Lu Kerryann Walsh Sonia White Paul Shield 《Journal of child and family studies》2017,26(5):1285-1297
This study examined the associations between perceived maternal psychological control and adolescent academic functioning in terms of academic performance and academic self-concept. The study also tested the possible mediating role of basic psychological needs to investigate how parental psychological control is related to child academic functioning. A sample of Chinese adolescents (N?=?338) completed a self-administered questionnaire on maternal psychological control, academic self-concept, academic performance and basic psychological needs satisfaction. Structural equation modeling was used for data analyses. Findings of this study revealed that Chinese adolescents’ perceptions of maternal psychological control were associated with their academic self-concept, and furthermore this association was mediated by adolescents’ basic psychological needs satisfaction on autonomy, relatedness and competence. Theoretical and practical implications, as well as future research directions were discussed. 相似文献
236.
Karl Peltzer Supa Pengpid Tholene Sodi Sonia Carolina Mantilla Toloza 《Journal of Psychology in Africa》2017,27(1):61-68
The aim of this study was to examine health behaviours and happiness and associated factors in low, middle and high income countries. In a cross-sectional survey, 17 508 undergraduate university students (mean age 20.9, SD = 2. 8) from 25 universities in 24 countries across Asia, Africa and the Americas self-completed anonymous questionnaires. Results indicate that the overall happiness mean score among university students across 24 countries was 13.7 (range 4–20). Generally, the study found that university students from countries of the Caribbean, South America and sub-Saharan Africa had greater happiness scores than students from countries in North Africa and Asia. In multivariate linear regression analysis, better subjective socio-economic status, coming from an higher income country, higher social support, higher intrinsic religiosity, higher personal mastery, positive health behaviours (regular breakfast, adequate physical activity, habitual seatbelt use, regular dental check-ups, not having had an injury, not drinking and driving) and negative health behaviours (not having three or more servings of vegetables and eating red meat daily) were correlated with happiness. Improvement to the happiness of university students should consider regional differences in socio-economic environment. 相似文献
237.
Cognitive theories of depression emphasise a vicious circle linking depressed mood and biased recall towards negative information. In line with this, depressed adults show selectively enhanced recall for negative information. This recall bias is held to be mediated by increased accessibility of negative self-referent schemas formed as a result of adverse early experiences. Given this, surprisingly few studies have examined depression-related recall biases from a developmental perspective. Clinically depressed children have been found to show enhanced recall of negative adjectives, particularly when self-referent, but to date there is no evidence for similar recall biases in non-clinically depressed groups. The current study addressed this by investigating high and low non-clinically depressed children's (aged 5-11 years) recall of emotional stories. High depressed children showed enhanced recall of negative stories, relative to positive stories, compared to the low depressed group. This did not vary with age group. We conclude that, when child-oriented materials are used, depression-related biases in recall towards negative information are observable even in a non-clinical sample of children from 5 years of age. 相似文献
238.
Goltz SM 《The Behavior analyst / MABA》2003,26(1):131-150
The purpose of this paper is to suggest that behavior analysis can help to explain social power. In this approach, an individual's potential for influence is thought to be partially a function of his or her access to stimuli that can be used as consequences. This access can occur either through direct authority or indirectly through social networks and exchanges. Social power is also thought to be a function of an individual's skill in delivering the stimuli in ways that will have the most impact on behavior. A number of predictions about power based on an operant approach are offered. 相似文献
239.
Although subchronic phencyclidine (PCP) administration is recognized as a probative method to model schizophrenia-like symptoms in animals, only a few sets of data support the hypothesis of a cognitive prefrontal cortex (PFc) dysfunction in PCP-treated monkeys and rodents. Two experiments were here conducted to further test the integrity of prefrontal function in two versions of a memory for temporal order (MTO) task administered to rats. Original versions of this task elaborated by Kesner repeatedly yielded moderate to severe performance deficits in PFc lesioned rats. MTO assessment in an eight-arm radial maze consisted in a recency discrimination between two arms previously explored in the context of sequential forced choices. In Experiment 1, 16 naive Long-Evans rats were pre-trained on a variable version of the MTO task involving randomly re-mixed sequences until they reached a group criterion. Then, rats were treated daily for 21 days with PCP (10mg/kg) or saline vehicle and were tested on the same task approximately 20 h after an injection. The performance of the groups did not differ. In Experiment 2, 16 naive Long-Evans rats untrained prior to treatment received 27 daily injections of either PCP (10mg/kg) or saline vehicle and were tested, 20 h after each injection, on a constant version of the MTO task. This time, a fixed set of four sequences of successive arm entries was repeated within each daily session as well as across days. Again, prolonged PCP exposure failed to impair discrimination of temporal order despite the stability of sequential information over time. These negative results are not consistent with long-lasting hypofrontality, a major landmark of human schizophrenia, in the PCP rat model. 相似文献
240.
Validation of the cognitive structure of the test of signs by structural equation modeling. The present work is aimed to carry out a validation study of the cognitive operations required for the correct solution of items of a math test which includes basic arithmetic operations between integer numbers. The validation of the hypothesized cognitive structure is made by means of structural equation modeling and triangulation methods. Results show strong and positive cognitive subordination relationships between some items but the structural equation model fit only provides a partial support for the proposed structure. However, the triangulation procedure provides further evidence of validity. 相似文献