30 results match your criteria: "Douglas Institute Research Centre[Affiliation]"
Psychol Health Med
November 2024
Department of Psychosocial Science, Douglas Institute Research Centre, Verdun, Canada.
Integrative models of mental illness and health in psycho-oncology are aimed at all types of cancer, although the patients' experiences and issues may vary. This review summarizes the different theories and models of mental illness and health pertaining to the breast cancer experience and proposes an integrative phasic model applicable to the breast cancer trajectory. Five databases were searched for studies related to breast cancer mental health and illness theories and models.
View Article and Find Full Text PDFSex Reprod Healthc
June 2024
School of Nursing and Midwifery, Western Sydney University, Sydney, NSW, Australia. Electronic address:
Objective: The present study aimed to understand, relative to standard care, whether continuity of care models (private midwifery, continuity of care with a private doctor, continuity of care with a public midwife), and women's experience of maternity care provision, during the perinatal period buffered the association between prenatal maternal stress (PNMS) and infant birth outcomes (gestational age [GA], birth weight [BW] and birth weight for gestational age [BW for GA]).
Methods: 2207 women who were pregnant in Australia while COVID-19 restrictions were in place reported on their COVID-19 related objective hardship and subjective distress during pregnancy and provided information on their model of maternity care. Infant birth outcomes (BW, GA) were reported on at 2-months postpartum.
Hypertension
February 2024
Department of Medicine, Faculty of Medicine and Health Sciences, McGill University Health Centre, Montreal, Canada (A.K., L.P.).
Background: Sex differences exist in the likelihood of cognitive decline. The age at hypertension diagnosis is a unique contributor to brain structural changes associated with cerebral small vessel disease. However, whether this relationship differs between sexes remains unclear.
View Article and Find Full Text PDFAust N Z J Obstet Gynaecol
August 2023
School of Nursing and Midwifery, Western Sydney University, Sydney, New South Wales, Australia.
Background: Various forms of prenatal maternal stress (PNMS) have been reported to increase risk for preterm birth and low birthweight. However, the associations between specific components of stress - namely objective hardship and subjective distress - and birth outcomes are not well understood.
Aims: Here, we aimed to determine the relationship between birthweight and gestational age at birth and specific prenatal factors (infant gender and COVID-19 pandemic-related objective hardship, subjective distress, change in diet), and to determine whether effects of hardship are moderated by maternal subjective distress, change in diet, or infant gender.
Health Promot Chronic Dis Prev Can
August 2022
Anxiety and Illness Behaviours Laboratory, Department of Psychology, University of Regina, Regina, Saskatchewan, Canada.
The Royal Canadian Mounted Police (RCMP), like all public safety personnel (PSP), are frequently exposed to potentially psychologically traumatic events that contribute to posttraumatic stress injuries (PTSI). Addressing PTSI is impeded by the limited available research. In this protocol paper, we describe the RCMP Study, part of the concerted efforts by the RCMP to reduce PTSI by improving access to evidence-based assessments, treatments and training as well as participant recruitment and RCMP Study developments to date.
View Article and Find Full Text PDFNeurobiol Aging
October 2022
Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Mathison Centre, University of Calgary, Calgary, Alberta, Canada.
Recent work suggests that the relationship between age and memory-related brain activity are different for men and women. We sought to extend this work by examining sex differences in the association between age, memory performance, and brain signal variability during context memory tasks in neurotypical adults (aged 19-76 years; N = 128, 87 women). We measured blood oxygen level-dependent standard deviation (BOLD SD) during encoding and retrieval in easy and difficult spatial context memory tasks and investigated sex-specific, age- and performance-associated BOLD SD patterns.
View Article and Find Full Text PDFJ Affect Disord
October 2022
School of Nursing and Midwifery, Western Sydney University, Sydney, Australia.
Background: While there have been reports of increased perinatal anxiety during the COVID-19 pandemic (Stepowicz et al., 2020), there has been a lack of research on the relative importance of objective hardship and subjective distress. In this study, we explored the extent to which resilience, tolerance of uncertainty, and cognitive appraisal of the pandemic's consequences moderate the effect of prenatal objective hardship and subjective distress due to the pandemic on 2-month postpartum anxiety.
View Article and Find Full Text PDFInt J Environ Res Public Health
April 2022
School of Nursing and Midwifery, Western Sydney University, Sydney, NSW 2751, Australia.
The COVID-19 pandemic has impacted perinatal mental health globally. We determined the maternal factors and pandemic-related experiences associated with clinically significant perinatal (pregnant and post-partum) depressive symptoms in Australian women. Participants ( = 2638; pregnant = 1219, postnatal = 1419) completed an online survey (August 2020 through February 2021) and self-reported on depression, social support, and COVID-19 related experiences.
View Article and Find Full Text PDFNeuroimage Clin
July 2021
Brain Imaging Centre, Douglas Institute Research Centre, 6875 LaSalle Blvd Verdun, Montréal, QC H4H 1R3, Canada; Department of Psychiatry, Faculty of Medicine, McGill University, 1033 Avenue des Pins, Montréal, QC H3A 1A1, Canada. Electronic address:
Emerging evidence suggests that Alzheimer's Disease (AD) risk factors may differentially contribute to disease trajectory in women than men. Determining the effect of AD risk factors on brain aging in women, compared to men, is critical for understanding whether there are sex differences in the pathways towards AD in cognitively intact but at-risk adults. Brain Age Gap (BAG) is a concept used increasingly as a measure of brain health; BAG is defined as the difference between predicted age (based on structural MRI) and chronological age, with negative values reflecting preserved brain health with age.
View Article and Find Full Text PDFFront Neuroendocrinol
January 2021
Department of Psychology, University of Toronto, 100 St. George Street, Toronto, ON M5S 3G3, Canada; Rotman Research Institute, Baycrest Hospital, 3560 Bathurst St, Toronto, ON M6A 2E1, Canada; Tema Genus, Linköping University, TEMA-huset, Entrance 37, Room E433, Campus Valla, Linköping, Sweden.
Women represent ⅔ of the cases of Alzheimer's disease (AD). Current research has focused on differential risks to explain higher rates of AD in women. However, factors that reduce risk for AD, like cognitive/brain reserve, are less well explored.
View Article and Find Full Text PDFJ Affect Disord
January 2021
Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal QC Canada H3A 1A1; Douglas Institute Research Centre, 6875 Boulevard LaSalle, Verdun, QC Canada H4H 1R3. Electronic address:
Background: Limited research has evaluated distinct aspects of disaster experience as predictors of affective symptoms. In this study, we examined the extent to which maternal depression and anxiety over time were predicted by (1) objective hardship from a flood during pregnancy, (2) peritraumatic distress and (3) cognitive appraisal of the flood's consequences.
Methods: Data were drawn from the 2011 Queensland Flood Study, a prospective, longitudinal study of pregnancy (n = 183).
Cortex
August 2020
Department of Psychology, McGill University, Montreal, QC, Canada; Brain Imaging Centre, Douglas Institute Research Centre, Verdun, QC, Canada; Department of Psychiatry, Faculty of Medicine, McGill University, Montreal, QC, Canada. Electronic address:
Remembering associations between encoded items and their contextual setting is a feature of episodic memory. Although this ability generally deteriorates with age, there is substantial variability in how older individuals perform on episodic memory tasks. A current topic of debate in the cognitive neuroscience of aging literature revolves around whether this variability may stem from genetic and/or environmental factors related to reserve, allowing some individuals to compensate for age-related decline through differential recruitment of brain regions.
View Article and Find Full Text PDFJ Clin Med
May 2020
Department of Psychiatry, McGill University, Montreal, Quebec H3A 1A1, Canada.
Epigenetic mechanisms are believed to link environmental exposures to alterations in gene expression, and in so doing, to provide a physical substrate for the activation of hereditary potentials by life experiences. In keeping with this idea, accumulating data suggest that epigenetic processes are implicated in eating-disorder (ED) etiology. This paper reviews literature on putative links between epigenetic factors and EDs, and examines ways in which epigenetic programming of gene expression could account for gene-environment interactions acting in the EDs.
View Article and Find Full Text PDFJ Neurophysiol
April 2020
Département de Neurosciences, Faculté de Médecine, Université de Montréal, Québec, Canada.
In rats, forelimb movements are evoked from two cortical regions, the caudal and rostral forelimb areas (CFA and RFA, respectively). These areas are densely interconnected and RFA induces complex and powerful modulations of CFA outputs. CFA and RFA also have interhemispheric connections, and these areas from both hemispheres send projections to common targets along the motor axis, providing multiple potential sites of interactions for movement production.
View Article and Find Full Text PDFFront Psychiatry
November 2019
MAP Center for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada.
This study examined the association of housing stability with neurocognitive outcomes of a well-characterized sample of homeless adults with mental illness over 18 months and sought to identify demographic and clinical variables associated with changes in neurocognitive functioning. A total of 902 participants in the At Home/Chez Soi study completed neuropsychological measures 6 and 24 months after study enrollment to assess neurocognitive functioning, specifically verbal learning and memory, cognitive flexibility, and complex processing speed. Multivariable linear regression was performed to assess the association of housing stability with changes in neurocognitive functioning between 6 and 24 months and to examine the effect of demographic and clinical variables on changes in neurocognitive functioning.
View Article and Find Full Text PDFAging is associated with episodic memory decline and alterations in memory-related brain function. However, it remains unclear if age-related memory decline is associated with similar patterns of brain aging in women and men. In the current task fMRI study, we tested the hypothesis that there are sex differences in the effect of age and memory performance on brain activity during episodic encoding and retrieval of face-location associations (spatial context memory).
View Article and Find Full Text PDFDev Psychopathol
October 2019
Douglas Institute Research Centre,Montreal, QC,Canada.
The 5-HTTLPR polymorphism of the serotonin transporter has been shown to play a role in autism spectrum disorders (ASD). Moreover, disaster-related prenatal maternal stress (PNMS) has also been shown to be associated with ASD. However, no study to date has examined whether these two factors, either individually or in combination, are predictive of ASD traits in the same sample.
View Article and Find Full Text PDFNeuropsychopharmacology
November 2018
Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, 92037, USA.
The hypocretin/orexin (HCRT) neuropeptide system regulates feeding, arousal state, stress responses, and reward, especially under conditions of enhanced motivational relevance. In particular, HCRT neurotransmission facilitates drug-seeking behavior in circumstances that demand increased effort and/or motivation to take the drug. The present study used a shRNA-encoding adeno-associated viral vector to knockdown Hcrt expression throughout the dorsal hypothalamus in adult rats and determine the role of HCRT in cocaine self-administration.
View Article and Find Full Text PDFEarly Hum Dev
January 2018
Douglas Institute Research Centre, 6875 LaSalle Blvd., Verdun, Quebec H4H 1R3, Canada; McGill University, 845 Sherbrooke W., Montreal, Quebec H3A 0G4, Canada. Electronic address:
Arch Womens Ment Health
April 2018
Department of Psychiatry, McGill University, Montreal, QC, Canada.
The current study examined the moderating role of social support in the association between prenatal maternal stress (PNMS) and childhood body mass index (BMI) in the context of the Iowa floods of 2008. In addition, the mediating role of offspring birthweight was examined in the association between PNMS and childhood BMI. We recruited women from eastern Iowa who were pregnant in 2008 when disastrous floods occurred.
View Article and Find Full Text PDFProg Neuropsychopharmacol Biol Psychiatry
June 2017
Société Française d'Alcoologie, Issy-les-Moulineaux, France; Service d'Addictologie, CHU Nancy, Vandœuvre-Lès-Nancy, France. Electronic address:
Introduction: Energy drinks are popular beverages that are supposed to counteract sleepiness, increase energy, maintain alertness and reduce symptoms of hangover. Cognitive enhancing seems to be related to many compounds such as caffeine, taurine and vitamins. Currently, users mostly combine psychostimulant effects of energy drinks to counteract sedative effects of alcohol.
View Article and Find Full Text PDFQual Life Res
July 2017
Douglas Institute Research Centre, McGill University, Montreal, Canada.
Background And Objective: Participants experiencing homelessness and mental illness who received housing and support through the At Home/Chez Soi trial showed modest gains in quality of life (QOL) compared to treatment as usual participants. Participants' QOL ratings over time may have been affected by either response shift triggered by new life circumstances or by random variation in the meaning of QOL ratings. This study seeks to identify both phenomena to estimate the intervention's effect on true change in QOL.
View Article and Find Full Text PDFAddict Biol
July 2017
Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France.
Addiction is a chronic brain disorder that progressively invades all aspects of personal life. Accordingly, addiction to opiates severely impairs interpersonal relationships, and the resulting social isolation strongly contributes to the severity and chronicity of the disease. Uncovering new therapeutic strategies that address this aspect of addiction is therefore of great clinical relevance.
View Article and Find Full Text PDFCereb Cortex
April 2016
Département de Neurosciences, Université de Montréal, Montréal, Québec, Canada Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Montréal, Québec, Canada.
The primary motor cortex (M1) plays an essential role in the control of hand movements in primates and is part of a complex cortical sensorimotor network involving multiple premotor and parietal areas. In a previous study in squirrel monkeys, we found that the ventral premotor cortex (PMv) projected mainly to 3 regions within the M1 forearm representation [rostro-medial (RM), rostro-lateral (RL), and caudo-lateral (CL)] with very few caudo-medial (CM) projections. These results suggest that projections from premotor areas to M1 are not uniform, but rather segregated into subregions.
View Article and Find Full Text PDFCan J Psychiatry
November 2015
Professor, Department of Psychiatry, McGill University, Montreal, Quebec; Research Scientist, Douglas Institute Research Centre, Montreal, Quebec.
Objective: Housing First (HF) programs for people who are chronically or episodically homeless, combining rapid access to permanent housing with community-based, integrated treatment, rehabilitation and support services, are rapidly expanding in North America and Europe. Overall costs of services use by homeless people can be considerable, suggesting the potential for significant cost offsets with HF programs. Our purpose was to provide an updated literature review, from 2007 to the present, focusing specifically on the cost offsets of HF programs.
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