Browsing Faculté des arts et des sciences – Département de psychologie - Travaux et publications by Author "Gagnon, Jean-François"
Now showing items 1-6 of 6
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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 ... -
Changes in regional cerebral perfusion over time in idiopathic REM sleep behavior disorder
Baril, Andrée‐Ann; Gagnon, Jean-François; Pelletier, Amélie; Soucy, Jean-Paul; Gosselin, Nadia; Postuma, Ronald B.; Montplaisir, Jacques-Yves (Wiley, 2020-05-27)Background Idiopathic rapid eye movement sleep behavior disorder is associated with increased risk of neurodegeneration, but the temporal evolution of regional perfusion, a marker of cerebral activity, has not been characterized. The objective of the ... -
Evidence of a relation between hippocampal volume, white matter hyperintensities, and cognition in subjective cognitive decline and mild cognitive impairment
Caillaud, Marie; Hudon, Carol; Boller, Benjamin; Brambati, Simona Maria; Duchesne, Simon; Lorrain, Dominique; Gagnon, Jean-François; Maltezos, Samantha; Mellah, Samira; Phillips, Natalie; Consortium for the early identification of Alzheimer’s Disease-Quebec; Belleville, Sylvie (Oxford University Press, 2019-10-26)Objective: The concepts of mild cognitive impairment (MCI) and subjective cognitive decline (SCD) have been proposed to identify individuals in the early stages of Alzheimer’s disease (AD), or other neurodegenerative diseases. One approach to validate ... -
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 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 ...