Now showing items 1-10 of 10

  • Association between waking electroencephalography and cognitive event-related potentials in patients with obstructive sleep apnea 

    EEG and ERP in OSA
    Baril, Andrée-Ann; Gagnon, Katia; Gagnon, Jean-François; Montplaisir, Jacques-Yves; Gosselin, Nadia (Elsevier, 2013)
    Objective: Abnormal event-related potentials (ERP) and slowing of the waking electroencephalographic (EEG) activity have been reported in patients with obstructive sleep apneas (OSA). This study aimed at evaluating whether an association exists between ...
  • Biomarkers of dementia in obstructive sleep apnea 

    Baril, Andrée-Ann; Carrier, Julie; Lafrenière, Alexandre; Warby, Simon; Poirier, Judes; Osorio, Ricardo S.; Ayas, Najib; Dubé, Marie-Pierre; Petit, Dominique; Gosselin, Nadia; Canadian Sleep and Circadian Network (Elsevier, 2018-08-13)
    Epidemiologic and mechanistic evidence is increasingly supporting the notion that obstructive sleep apnea is a risk factor for dementia. Hence, the identification of patients at risk of cognitive decline due to obstructive sleep apnea may significantly ...
  • Brain white matter damage and its association with neuronal synchrony during sleep 

    Sanchez, Erlan; El-Khatib, Héjar; Arbour, Caroline; Bedetti, Christophe; Blais, Hélène; Marcotte, Karine; Baril, Andrée-Ann; Descoteaux, Maxime; Gilbert, Danielle; Carrier, Julie; Gosselin, Nadia (Oxford University Press, 2019-01-28)
    The restorative function of sleep partly relies on its ability to deeply synchronize cerebral networks to create large slow oscillations observable with EEG. However, whether a brain can properly synchronize and produce a restorative sleep when it ...
  • Gray matter hypertrophy and thickening with obstructive sleep apnea in middle-aged and older adults 

    Gray matter increases with obstructive sleep apnea
    Baril, Andrée-Ann; Gagnon, Katia; Brayet, Pauline; Montplaisir, Jacques-Yves; De Beaumont, Louis; Carrier, Julie; Lafond, Chantal; L’Heureux, Francis; Gagnon, Jean-François; Gosselin, Nadia (American Thoracic Society, 2017-06-01)
    Rationale: Obstructive sleep apnea causes intermittent hypoxemia, hemodynamic fluctuations, and sleep fragmentation, all of which could damage cerebral gray matter that can be indirectly assessed with neuroimaging. Objectives: To investigate whether ...
  • Obstructive sleep apnea and the risk of cognitive decline in older adults 

    Gosselin, Nadia; Baril, Andrée-Ann; Osorio, Ricardo S.; Kaminska, Marta; Carrier, Julie (American Thoracic Society, 2019-01-15)
    Obstructive sleep apnea causes intermittent hypoxia and sleep fragmentation and affects at least 20% of individuals after the age of 65. There is accumulating evidence that obstructive sleep apnea may impact brain structure and function. Recent cohort ...
  • Obstructive sleep apnea during REM sleep and daytime cerebral functioning : a regional cerebral blood flow study using high-resolution SPECT 

    Baril, Andrée-Ann; Gagnon, Katia; Brayet, Pauline; Montplaisir, Jacques-Yves; Carrier, Julie; Soucy, Jean-Paul; Lafond, Chantal; Blais, Hélène; d’Aragon, Caroline; Gagnon, Jean-François; Gosselin, Nadia (SAGE, 2018-11-22)
    Obstructive sleep apnea (OSA) predominantly during rapid eye movement (REM) sleep may have impacts on brain health, even in milder OSA cases. Here, we evaluated whether REM sleep OSA is associated with abnormal daytime cerebral functioning using ...
  • Regional cerebral blood flow during wakeful rest in older subjects with mild to severe obstructive sleep apnea 

    Cerebral perfusion in OSA
    Baril, Andrée-Ann; Gagnon, Katia; Arbour, Caroline; Soucy, Jean-Paul; Montplaisir, Jacques-Yves; Gagnon, Jean-François; Gosselin, Nadia (Oxford University Press, 2015)
    Objectives: To evaluate changes in regional cerebral blood flow (rCBF) during wakeful rest in older subjects with mild to severe obstructive sleep apnea (OSA) and healthy controls, and to identify markers of OSA severity that predict altered ...
  • Sleep spindles are resilient to extensive white matter deterioration 

    Sanchez, Erlan; Arbour, Caroline; El-Khatib, Héjar; Marcotte, Karine; Blais, Hélène; Baril, Andrée-Ann; Bedetti, Christophe; Descoteaux, Maxime; Lina, Jean-Marc; Gilbert, Danielle; Carrier, Julie; Gosselin, Nadia (Oxford University Press, 2020-06-13)
    Sleep spindles are an essential part of non-rapid eye movement sleep, notably involved in sleep consolidation, cognition, learning and memory. These oscillatory waves depend on an interaction loop between the thalamus and the cortex, which relies on ...
  • Visual fixation in the intensive care unit: a strong predictor of post-traumatic amnesia and long-term recovery after moderate-to-severe traumatic brain injury 

    Visual fixation in the ICU
    Arbour, Caroline; Baril, Andrée-Ann; Westwick, Harrison J.; Potvin, Marie-Julie; Gilbert, Danielle; Giguère, Jean-François; Lavigne, Gilles; Desautels, Alex; Bernard, Francis; Laureys, Steven; Gosselin, Nadia (Lippincott, Williams & Wilkins, 2016-12-01)
    Objective: We examined whether visual fixation at 24h of intensive care unit (ICU) admission is superior to the initial Glasgow Coma Scale (GCS) score to predict PTA duration and long-term TBI recovery. Design: Two-phase cohort study. Setting: Level I ...
  • Waking EEG functional connectivity in middle-aged and older adults with obstructive sleep apnea 

    Fortin, Maxime; Lina, Jean-Marc; Desjardins, Marie-Eve; Gagnon, Katia; Baril, Andrée-Ann; Carrière, Julien; Gosselin, Nadia (Elsevier, 2020-06-14)
    Objectives: The present study aimed at investigating changes in waking electroencephalography (EEG), most specifically regarding spectral power and functional connectivity, in middle-aged and older adults with OSA. We also explored whether changes ...