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24-hour activity cycle behaviors and gray matter volume in mild cognitive impairment

Author(s): Balbim GM; Boa Sorte Silva NC; Falck RS; Kramer AF; Voss MW; Liu-Ambrose T;

Introduction: The 24-hour activity cycle (24-HAC) includes physical activity (PA), sedentary behavior (SB), and sleep. The 24-HAC composition and brain health relationship in adults with mild cognitive impairment (MCI) remains underexplored. We examined associations between 24-HAC composition and gray matter (GM) volume. Methods: Cross-sectional study in ...

Article GUID: 40693459


Assessment of cognitive load in the context of neurosurgery

Author(s): Di Giovanni DA; Kersten-Oertel M; Drouin S; Collins DL;

Purpose: Image-guided neurosurgery demands precise depth perception to minimize cognitive burden during intricate navigational tasks. Existing evaluation methods rely heavily on subjective user feedback, which can be biased and inconsistent. This study uses a physiological measure via electroencephalography (EEG), to quantify cognitive load when using nov ...

Article GUID: 40650801


Investigating the effects of a randomized, double-blinded aerobic, resistance, and cognitive training clinical trial on neurocognitive function in older adults with cardiovascular risk factors: the ACTIONcardioRisk protocol

Author(s): Bherer L; Vrinceanu T; Dupuy EG; Gayda M; Vincent T; Magnan PO; Mohammadi H; Gauthier C; Gagnon C; Duchesne S; Erickson KI; Gagnon D; Lesage F; Lupien S; Poirier J; Dubé MP; Thorin É; Juneau M; Breton J; Belleville S; Ferland G; Gaudreau ...

Background: Lifestyle factors like exercise and cognitive stimulation might help improve cognitive performance in older adults. However, studies investigating this, reported mixed results. Most of the data supporting the benefit of exercise comes from cross-sectional studies, cohort studies, or s ...

Article GUID: 40625372


Hearing loss is associated with decreased default-mode network connectivity in individuals with mild cognitive impairment

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, aberr ...

Article GUID: 40567819


Sound degradation type differentially affects neural indicators of cognitive workload and speech tracking

Author(s): Gagné N; Greenlaw KM; Coffey EBJ;

Hearing-in-noise (HIN) is a challenging task that is essential to human functioning in social, vocational, and educational contexts. Successful speech perception in noisy settings is thought to rely in part on the brain's ability to enhance neural representations of attended speech. In everyday HIN situations, important features of speech (i.e., pitch ...

Article GUID: 40412301


Efficacy of cognitive behavioral therapy for insomnia and lemborexant medication for different subtypes of chronic insomnia: study protocol for a randomized controlled trial

Author(s): Chen SJ; Ivers H; Dang-Vu TT; Shapiro CM; Carney CE; Robillard R; Morin CM;

Introduction: Insomnia is a prevalent yet under-characterized disorder, particularly regarding the heterogeneity of patients and their associated responses to different treatment modalities. This often leads to suboptimal management. There is a need to consider personalized approaches tailored to the characteristics of insomnia phenotypes with regard to o ...

Article GUID: 40346496


Thinking Outside the Nation: Cognitive Flexibility s Role in National Identity Inclusiveness as a Marker of Majority Group Acculturation

Author(s): Medvetskaya A; Ryder AG; Doucerain MM;

In superdiverse societies like Canada, characterized by high levels of cultural and ethnic plurality, national identity boundaries are often blurry. While policies may officially promote inclusiveness, public discourse on national identity is frequently dominated by mainstream groups, whose willingness to expand these boundaries plays a crucial role in fo ...

Article GUID: 40282118


Connected speech profiles in mild cognitive impairment reflect global cognition

Author(s): Pellerin S; Houzé B; Bedetti C; Phillips N; Brambati SM;

BackgroundMild cognitive impairment (MCI), a prodromal stage of Alzheimer's disease (AD) for many individuals, is accompanied by widespread connected speech (CS) changes (e.g., shorter CS samples, mention of fewer semantic content units, lower syntactic complexity). Nevertheless, findings on CS in MCI are heterogeneous. This heterogeneity, combined wi ...

Article GUID: 40232260


Correlations of pilot trainees brainwave dynamics with subjective performance evaluations: insights from EEG microstate analysis

Author(s): Zhao M; Law A; Su C; Jennings S; Bourgon A; Jia W; Larose MH; Bowness D; Zeng Y;

Objective: This study aims to investigate the relationship between the subjective performance evaluations on pilot trainees' aircraft control abilities and their brainwave dynamics reflected in the results from EEG microstate analysis. Specifically, we seek to identify correlations between distinct microstate patterns and each dimension included in th ...

Article GUID: 40109507


Sleep spindles and slow oscillations predict cognition and biomarkers of neurodegeneration in mild to moderate Alzheimer's disease

Author(s): Páez A; Gillman SO; Dogaheh SB; Carnes A; Dakterzada F; Barbé F; Dang-Vu TT; Ripoll GP;

Introduction: Changes in sleep physiology can predate cognitive symptoms by decades in persons with Alzheimer's disease (AD), but it remains unclear which sleep characteristics predict cognitive and neurodegenerative changes after AD onset. Methods: Using data from a prospective cohort of mild to moderate AD (n = 60), we analyzed non-rapid eye moveme ...

Article GUID: 39878233


Toward cognitive models of misophonia

Author(s): Savard MA; Coffey EBJ;

Misophonia is a disorder in which specific common sounds such as another person breathing or chewing, or the ticking of a clock, cause an atypical negative emotional response. Affected individuals may experience anger, irritability, annoyance, disgust, and anxiety, as well as physiological autonomic responses, and may find everyday environments and contex ...

Article GUID: 39874936


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