972 resultados para neuropsychiatric symptoms


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The present study explores relationships among several established correlates of trauma in women exposed to intimate partner abuse (IPA), including PTSD, depression, and dissociation symptoms as well as alcohol use as well as other trauma-related variables, such as social support and violence exposure. Two analysis methods were utilized: variable-oriented methods, which examine relationships between variables, and person-oriented analysis methods, which examine groupings of participants within a larger sample (N = 233). Results of the variable-oriented analyses indicated positive links among depression, PTSD, dissociation, and alcohol use in women exposed to IPA, as well as positive links between the aforementioned psychological symptoms and exposure to violence. Social support was related to decreased psychological symptoms. Person-oriented analyses indicated the presence of four unique profiles of women within the larger study sample: Profile 1 (n = 21), which was labeled High Dissociation, Low Depression/PTSD; Profile 2 (n = 150), which was labeled Low Symptoms, High Social Support, Profile 3 (n = 41); which was labeled Low Dissociation, High Depression/PTSD; and Profile 4 (n = 22), which was labeled High Symptoms, Low Social Support. This research supports previous findings about the relationships among several variables related to IPA as well as suggests the need for careful consideration of differences among women within the larger context of research, advocacy, and clinical interventions related to IPA.

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Cognitive Reappraisal (CR) is a central component of Cognitive Behavioral Therapy for adolescent depression. Yet, previous research indicates that a brain region highly associated with successful CR in adults, the Prefrontal Cortex (PFC), is not fully developed until early adulthood. Thus, there is growing concern that CBT interventions directed at building CR abilities in depressed teens might be constrained by PFC immaturity. However, CR is an effective strategy for regulating affect. The current study evaluated an intervention aimed at enhancing CR performance through PFC “warm up” with a working memory task. Additionally, the study examined moderators of intervention response, as well as cognitive correlates of self-reported CR use. Participants included 48 older adolescents (mean age=19.1, 89% female) with elevated symptoms of depression who were randomly assigned to a lab-based WM or control activity followed by a CR task. Overall, results failed to support the effectiveness of “warm up” to augment CR performance. However, current level of depression predicted negative bias and sadness ratings after CR instructions, and this effect was qualified by an interaction with condition. The moderator analysis showed that depressive symptoms interacted with condition such that in the control condition, participants with higher depressive symptoms had significantly lower negative bias scores than individuals with lower depressive symptoms, but this pattern was not found in the experimental condition. Contrary to hypotheses, history of depression did not moderate treatment response. Additional analyses explored alternative explanations for the lack of intervention effects. There was some evidence to suggest that the WM task was frustrating and cognitively taxing. However, irritation scores and overall WM task accuracy did not predict subsequent CR performance. Lastly, multiple cognitive variables emerged as correlates of self-reported CR use, with cognitive flexibility contributing unique variance to self-reported CR use. Results pointed to new directions for improving CR performance among youth with elevated symptoms of depression.

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Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

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Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

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Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

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Background Research has raised significant concern regarding the affective consequences of synthetic drug use. However, little evidence from well-controlled longitudinal studies exists on these consequences. The aim of this study was to determine whether use of meth/amphetamine (speed) and 63,4- methylenedioxymethamphetamine (MDMA, ecstasy) is independently predictive of subsequent depressive symptoms in adolescents. Methods A sample of 3880 adolescents from secondary schools in disadvantaged areas of Quebec, Canada, were followed over time (2003e2008). Logistic regression was used to test the association between meth/ amphetamine and MDMA use in grade 10 (ages 15e16 years) and elevated depressive symptoms on an abridged Center for Epidemiologic Studies-Depression scale in grade 11, controlling for pre-existing individual and contextual characteristics. Results After adjustment, both MDMA use (OR 1.7, 95% CI 1.1 to 2.6) and meth/amphetamine use (OR 1.6, 95% CI 1.1 to 2.3) in grade 10 significantly increased the odds of elevated depressive symptoms in grade 11. These relationships did not vary by gender or pre-existing depressive symptoms. Increased risk was particularly observed in concurrent usage (OR 1.9, 95% CI 1.2 to 2.9). Conclusions Adolescent use of meth/amphetamine and MDMA (particularly concurrent use) is independently associated with subsequent depressive symptoms. Further enquiry must determine whether these associations reflect drug-induced neurotoxicity and whether adolescence is a period of increased vulnerability to the hazards of synthetic drug exposure.

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Objective: Adolescent depressive symptoms are associated with difficult family relationships. Family systems and interpersonal theories of depression suggest that this association could reflect a circular process in which symptoms and family functioning affect each other over time. Few longitudinal studies have tested this hypothesis, and the results of these studies have been equivocal. In this study, we examine reciprocal prospective associations in early adolescence between depressive symptoms and 2 important aspects of parent–child relationships: communication and conflict. Methods: Participants were 3862 students who annually filled out self-reports. Path analysis was used to examine prospective associations between depressive symptoms and perceived communication and conflict with parents from the age of 12 to 13 and 14 to 15 years. Independence of these associations was assessed by controlling for family context (parental separation and family socioeconomic status) and adolescent behaviour problems (delinquent behaviours and substance use). Sex differences were evaluated with multiple group analysis. Results: Reciprocal prospective associations were found between depressive symptoms and perceived conflict with parents, but not between depressive symptoms and communication with parents. Depressive symptoms were found to predict poorer communication with parents over time, but communication was not predictive of lower depressive symptoms in subsequent years. All paths were sex-invariant and independent from family context and behaviour problems. Conclusion: This study highlights the importance of considering the potential impact of adolescent symptomatology on parent–child relationships and suggests that reciprocity may characterize the association between depressive symptoms and negative aspects of parent–child relationships. The role of adolescent perceptions in the interplay between depressive symptoms and family relationships remains to be clarified.

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Purpose: Increasing evidence suggests the existence of heterogeneity in the development of depressive symptoms during adolescence, but little remains known regarding the implications of this heterogeneity for the development of commonly co-occurring problems. In this study, we derived trajectories of depressive symptoms in adolescents and examined the codevelopment of multiple behavioral and academic problems in these trajectories. Methods: Participants were 6,910 students from secondary schools primarily located in disadvantaged areas of Quebec (Canada) who were assessed annually from the age 12 to 16 years. Trajectories were identified using growth mixture modeling. The course of behavioral (delinquency, substance use) and academic adjustment (school liking, academic achievement) in trajectories was examined by deriving latent growth curves for each covariate conditional on trajectory membership. Results: We identified five trajectories of stable-low (68.1%), increasing (12.1%), decreasing (8.7%), transient (8.7%), and stable-high (2.4%) depressive symptoms. Examination of conditional latent growth curves revealed that the course of behavioral and academic problems closely mirrored the course of depressive symptoms in each trajectory. Conclusions: This pattern of results suggests that the course of depressive symptoms and other adjustment problems over time is likely to involve an important contribution of shared underlying developmental process(es).

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This paper focuses on the ethnic dimension of xenophobia, as understood as aversion, fear or hostility vis-a-vis members of other nationalities, as well as the related radical nationalist ideas founded on the concept of the dominant (and often discriminatory) role of the Russians in the Russian Federation, with reference to racism or neo-Nazism. This text primarily presents xenophobia as an enormous social problem in today's Russia, which is not being addressed at the moment, but is instead being exploited by both the authorities and radical nationalist groups. This paper attempts to describe and understand the causes of xenophobia and the reasons for the popularity of extremely nationalist views among ethnic Russians. It also seeks to estimate the scale of the problem and the potential threat it may create in the future. The first part describes the different manifestations of xenophobia in present-day Russia. It identifies the groups most exposed to ethnically motivated violence and persecution, as well as the most xenophobic communities, and discusses the scale of the problem and its specific characteristics in the context of Russian reality. The second part looks into the underlying causes of xenophobic sentiments among Russians, while the last chapters delve into the authorities' attitude towards the problem and seek to answer the question of whether radical nationalist ideas may in future come to dominate Russia's political scene.

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The crisis in Russia’s financial market, which started in mid-December 2014, has exposed the real scale of the economic problems that have been growing in Russia for several years. Over the course of the last year, Russia’s basic macroeconomic indicators deteriorated considerably, the confidence of its citizens in the state and in institutions in charge of economic stability declined, the government and business elites became increasingly dissatisfied with the policy direction adopted by the Kremlin, and fighting started over the shrinking resources. According to forecasts obtained from both governmental and expert communities, Russia will fall into recession in 2015. The present situation is the result of the simultaneous occurrence of three unfavourable trends: the fact that the Russian economy’s resource-based development model has reached the limits of its potential due to structural weaknesses, the dramatic decline in oil prices in the second half of 2014, and the impact of Western economic sanctions. Given the inefficiency of existing systemic mechanisms, in the coming years the Russian leadership will likely resort to ad hoc solutions such as switching to a more interventionist “manual override” mode in governing the state. In the short term, this will allow them to neutralise the most urgent problems, although an effective development policy will be impossible without a fundamental change of the political and economic system in Russia.

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In the wake of the long-awaited State of the Union address delivered by Jean-Claude Juncker on September 9th, Sergio Carrera and Karel Lannoo express deep disappointment with the EU’s response, both in scope and in ambition. In their view, two key challenges lie behind the current asylum crisis. First, existing EU rules do not fit the purpose and the second challenge relates to the systemic failure of states like Greece, Hungary and Italy to adhere to the democratic rule of law principles and fundamental rights.