Author(s): Freeman-Cole CE; Jaeger JAG;

While landscape connectivity is an important focus of Canada's conservation goals, Canadian national parks are vulnerable to habitat loss, the breaking-up of habitat patches, and a reduction in their connectivity to surrounding ecosystems. This study measured landscape fragmentation in 43 Canadian national parks and control areas throughout their hi ...

Article GUID: 42228295

Author(s): Coulter K; Dash T; Best T; Grant N; Ansaldo AI; Phillips NA;

Speaking more than one language is hypothesized to lead to greater brain resilience in aging and Alzheimer's disease, resulting in a delay in the symptom onset of Alzheimer's disease. While previous research has used structural neuroimaging measures to explore the neural underpinnings of this protective effect, few studies have used functional b ...

Article GUID: 42208339

Author(s): Gu Y; Hsu CL; Boa Sorte Silva NC; Tam RC; Alkeridy WA; Lam K; Liu-Ambrose T;

Background: Subcortical ischemic vascular cognitive impairment (SIVCI) is characterized by white matter hyperintensities (WMH) that contribute to executive dysfunction and increased risk of Alzheimer's disease. Cognitive reserve (CR) is the brain's ability to maintain cognitive performance despite pathology. Resting-state functional connectivity ...

Article GUID: 41929984

Author(s): Rousseau PN; Bazin PL; Steele CJ;

Article GUID: 41420671

Author(s): Rattray GF; Jourde HR; Baillet S; Coffey EBJ;

Subcortical brain regions like the thalamus are integral to numerous sensory and cognitive functions. Magnetoencephalography (MEG) enables the study of widespread brain networks with high temporal resolution, but the degree to which deep sources like the thalamus can be resolved remains unclear. Functional connectivity methods may enhance differentiatio ...

Article GUID: 41002111

Author(s): Ferland MC; Wang R; Therrien-Blanchet JM; Remahi S; Côté S; Fréchette AJ; Dang-Vu TT; Liu H; Lepage JF; Théoret H;

Lorazepam is a fast-acting benzodiazepine that is widely used to manage anxiety symptoms through modulation of GABAergic activity. Despite being one of the most prescribed benzodiazepines, the effects of a single dose of lorazepam on brain functional connectivity at rest is not known. In this p ...

Article GUID: 40646404

Author(s): Grant N; Phillips N;

Mild cognitive impairment (MCI) and hearing loss (HL) have been separately associated with increased dementia risk. These highly co-occurring dementia risk factors are associated with aberrant functional brain connectivity. In individuals with HL aberrant functional connectivity has been associated with cognitive impairment. In individuals with MCI, abe ...

Article GUID: 40567819

Author(s): Avigdor T; Peter-Derex L; Ho A; Schiller K; Wang Y; Abdallah C; Delaire E; Jaber K; Travnicek V; Grova C; Frauscher B;

Although rapid eye movement (REM) sleep is often thought of as a singular state, it consists of two substates, phasic and tonic REM, defined by the presence (respectively absence) of bursts of rapid eye movements. These two substates have distinct EEG signatures and functional properties. Howev ...

Article GUID: 40394955

Author(s): Avigdor T; Ren G; Abdallah C; Dubeau F; Grova C; Frauscher B;

Morning awakening is part of everyday life. Surprisingly, information remains scarce on its underlying neurophysiological correlates. Here simultaneous polysomnography and stereo-electroencephalography recordings from 18 patients are used to assess the spectral and connectivity content of the process of awakening at a local level 15 min before and after ...

Article GUID: 40126936

Author(s): Pereira M; Chen X; Paltarzhytskaya A; Pache?o Y; Muller N; Bovy L; Lei X; Chen W; Ren H; Song C; Lewis LD; Dang-Vu TT; Czisch M; Picchioni D; Duyn J; Peigneux P; Tagliazucchi E; Dresler M;

Sleep research has evolved considerably since the first sleep electroencephalography recordings in the 1930s and the discovery of well-distinguishable sleep stages in the 1950s. While electrophysiological recordings have been used to describe the sleeping brain in much detail, since the 1990s n ...

Article GUID: 39940102

Author(s): Bedford O; Noly-Gandon A; Ara A; Wiesman AI; Albouy P; Baillet S; Penhune V; Zatorre RJ;

Perception and production of music and speech rely on auditory-motor coupling, a mechanism which has been linked to temporally precise oscillatory coupling between auditory and motor regions of the human brain, particularly in the beta frequency band. Recently, brain imaging studies using magnetoencephalography (MEG) have also shown that accurate audito ...

Article GUID: 39757971