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Neural correlates of impulsivity in amphetamine use disorder

Author(s): Kaboodvand N; Shabanpour M; Guterstam J;

Impulsivity is a trait associated with several psychiatric conditions, not least addictive disorders. While the neural mechanisms behind certain aspects of impulsivity have been studied extensively, there are few imaging studies examining this neurocircuitr ...

Article GUID: 38991286


Changes in social functioning and circulating oxytocin and vasopressin following the migration to a new country

Author(s): Gouin JP; Pournajafi-Nazarloo H; Carter CS;

Prior studies have reported associations between plasma oxytocin and vasopressin and markers of social functioning. However, because most human studies have used cross-sectional designs, it is unclear whether plasma oxytocin and vasopressin influences socia ...

Article GUID: 25446216


High-frequency heart rate variability during worry predicts stress-related increases in sleep disturbances

Author(s): Gouin JP; Wenzel K; Boucetta S; O' Byrne J; Salimi A; Dang-Vu TT;

Objective: The aim of this study was to evaluate whether high-frequency heart rate variability (HF-HRV) during waking restfulness and during worry predicts increases in sleep disturbances in response to a stressful life event. Methods: A longitudinal study ...

Article GUID: 25819418


Family dysfunction, stressful life events, and mental health problems across development in the offspring of parents with an affective disorder

Author(s): Resendes T; Ellenbogen MA; Oldehinkel AJ;

Background: Offspring of parents with affective disorders (OAD) are at risk of developing a wide range of mental disorders. Deficits in the rearing environment and high levels of stress are well-known risk factors for negative outcomes in OAD. Building on p ...

Article GUID: 38682166


Comparative Analysis of the Functions Work Groups and Informal Subgroups Carry out in Relation to their Members: The Essence, Conditions of Implementation, Effects, and Dysfunctions

Author(s): Sidorenkov AV; Borokhovski EF;

In this article, we attempt to integrate and further develop conceptual ideas about functions of small groups and the informal subgroups that arise within them in relation to their respective members, namely, the functions of: (1) creating possibilities for ...

Article GUID: 38492193


The role of frailty in the relationships between social relationships and health outcomes: a longitudinal study

Author(s): Fereshteh Mehrabi

CONCLUSIONS: The findings suggest that changes in social support have a protective and compensatory role in decreasing depressive symptoms and enhancing cognitive health among older adults with increasing frailty. Public health policy and strategies should ...

Article GUID: 38402184


Cone allometry and seed protection from fire are similar in serotinous and nonserotinous conifers

Author(s): Greene DF; Kane JM; Pounden E; Michaletz ST;

Serotiny is an adaptive trait that allows certain woody plants to persist in stand-replacing fire regimes. However, the mechanisms by which serotinous cones avoid seed necrosis and nonserotinous species persist in landscapes with short fire cycles and serot ...

Article GUID: 38375897


Reciprocal inhibition and competitive hierarchy cause negative biodiversity-ecosystem function relationships

Author(s): D' Andrea R; Khattar G; Koffel T; Frans VF; Bittleston LS; Cuellar-Gempeler C;

The relationship between biodiversity and ecosystem function (BEF) captivates ecologists, but the factors responsible for the direction of this relationship remain unclear. While higher ecosystem functioning at higher biodiversity levels ('positive BEF& ...

Article GUID: 38193391


Effect of aquatic exercise versus standard care on paraspinal and gluteal muscles morphology in individuals with chronic low back pain: a randomized controlled trial protocol

Author(s): Rosenstein B; Montpetit C; Vaillancourt N; Dover G; Khalini-Mahani N; Weiss C; Papula LA; Melek A; Fortin M; ...

Background: Low back pain (LBP) is one of the most disabling diseases and a major health issue. Despite the evidence of a link between paraspinal and gluteal muscle dysfunction and LBP, it is unkno ...

Article GUID: 38110922


At-home computerized executive-function training to improve cognition and mobility in normal-hearing adults and older hearing aid users: a multi-centre, single-blinded randomized controlled trial

Author(s): Downey R; Gagné N; Mohanathas N; Campos JL; Pichora-Fuller KM; Bherer L; Lussier M; Phillips NA; Wittich W; St-Onge N; Gagné JP; Li K; ...

Background: Hearing loss predicts cognitive decline and falls risk. It has been argued that degraded hearing makes listening effortful, causing competition for higher-level cognitive resources need ...

Article GUID: 37864139


Childhood hyperactivity, eating behaviours, and executive functions: Their association with the development of eating-disorder symptoms in adolescence

Author(s): Dufour R; Breton É; Morin AJS; Côté SM; Dubois L; Vitaro F; Boivin M; Tremblay RE; Booij L; ...

Background: Cross-sectional studies have shown that hyperactivity and impaired executive functioning are associated with symptoms of eating disorders in adolescence and adulthood. Whether hyperacti ...

Article GUID: 37833803


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