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Patterns of Cerebellar-Cortical Structural Covariance Mirror Anatomical Connectivity of Sensorimotor and Cognitive Networks

Author(s): Alasmar Z; Chakravarty MM; Penhune VB; Steele CJ;

The cortex and cerebellum are densely connected through reciprocal input/output projections that form segregated circuits. These circuits are shown to differentially connect anterior lobules of the cerebellum to sensorimotor regions, and lobules Crus I and II to prefrontal regions. This differential connectivity pattern leads to the hypothesis that indivi ...

Article GUID: 39791308


Alzheimer's Imaging Consortium

Author(s): Soucy JP; Belasso CJ; Cai Z; Bezgin G; Stevenson J; Rahmouni N; Tissot C; Lussier FZ; Rosa-Neto P; Rivaz HJ; Benali H;

Background: Tau aggregates in Alzheimer's disease (AD) induce loss of synapses and neurons, leading to cognitive impairment. Predicting tau and neurodegeneration temporal evolution could be used for prognostication and for assessing results of therapeutic trials. Tau PET and MRI volumetry are ...

Article GUID: 39782975


Alzheimer's Imaging Consortium

Author(s): Tremblay SA; Spreng RN; Wearn A; Alasmar Z; Pirhadi A; Tardif CL; Chakravarty MM; Villeneuve S; Leppert IR; Carbonell F; Medina YI; Steele CJ; Gauthier CJ;

Background: Alzheimer's disease (AD) is thought to result from a complex cascade of events involving several pathological processes. Recent studies have reported alterations in white matter (WM) microstructure in the early phase of AD, but WM remains understudied. We used a multivariate appro ...

Article GUID: 39782998


Biomarkers

Author(s): Soucy JP; Belasso CJ; Cai Z; Bezgin G; Stevenson J; Rahmouni N; Tissot C; Lussier FZ; Rosa-Neto P; Rivaz HJ; Benali H;

Background: Tau aggregates in Alzheimer's disease (AD) induce loss of synapses and neurons, leading to cognitive impairment. Predicting tau and neurodegeneration temporal evolution could be used for prognostication and for assessing results of therapeutic trials. Tau PET and MRI volumetry are ...

Article GUID: 39784152


Biomarkers

Author(s): Tremblay SA; Spreng RN; Wearn A; Alasmar Z; Pirhadi A; Tardif CL; Chakravarty MM; Villeneuve S; Leppert IR; Carbonell F; Medina YI; Steele CJ; Gauthier CJ;

Background: Alzheimer's disease (AD) is thought to result from a complex cascade of events involving several pathological processes. Recent studies have reported alterations in white matter (WM) microstructure in the early phase of AD, but WM remains understudied. We used a multivariate appro ...

Article GUID: 39785351


Biomarkers

Author(s): Grant N; Phillips N;

Background: Hearing loss (HL) is a risk factor for dementia that is prevalent in older adults. Altered brain connectivity is present in individuals with HL, individuals with subjective cognitive decline (SCD), and individuals with mild cognitive impairment (MCI). In individuals with HL, altered brain connectivity has been associated with impaired scores o ...

Article GUID: 39785420


Beyond the Illusion of Controlled Environments: How to Embrace Ecological Pertinence in Research?

Author(s): Cassandre Vielle

Through the lens of preclinical research on substance use disorders (SUD), I propose a reflection aimed at re-evaluating animal models in neuroscience, with a focus on ecological relevance. While rodent models have provided valuable insights into the neurobiology of SUD, the field currently faces a validation crisis, with findings often failing to transla ...

Article GUID: 39777969


Psychosocial Function in Mild Cognitive Impairment: Social Participation is Associated With Cognitive Performance in Multiple Domains

Author(s): Rehan S; Phillips NA;

Psychosocial function is associated with cognitive performance cross-sectionally and cognitive decline over time. Using data from the COMPASS-ND study, we examined associations between psychosocial and cognitive function in 126 individuals with mild cognitive impairment, an at-risk group for Alzheimer's disease (AD). Psychosocial function was measured ...

Article GUID: 39773214


The pleasurable urge to move to music is unchanged in people with musical anhedonia

Author(s): Romkey ID; Matthews T; Foster N; Dalla Bella S; Penhune VB;

In cognitive science, the sensation of "groove" has been defined as the pleasurable urge to move to music. When listeners rate rhythmic stimuli on derived pleasure and urge to move, ratings on these dimensions are highly correlated. However, recent behavioural and brain imaging work has shown that these two components may be separable. To examine this pot ...

Article GUID: 39774498


Long-lasting antimicrobial effect of multipurpose ZnO nanoparticle-loaded dental resins enhanced by blue light photodynamic therapy

Author(s): Leite ML; Comeau P; Zaghwan A; Shen Y; Manso AP;

Objectives: This study aimed to assess the potential of experimental dental resins containing ZnO nanoparticles (ZnO-NPs) for antimicrobial photodynamic therapy (aPDT) as a functional tool for the modulation of cariogenic biofilm in long-term. Methods: Minimum inhibitory and bactericidal concentrations (MIC/MBC) of ZnO-NPs against Streptococcus mutans we ...

Article GUID: 39765362


Semantically-Enhanced Feature Extraction with CLIP and Transformer Networks for Driver Fatigue Detection

Author(s): Gao Z; Chen X; Xu J; Yu R; Zhang H; Yang J;

Drowsy driving is a leading cause of commercial vehicle traffic crashes. The trend is to train fatigue detection models using deep neural networks on driver video data, but challenges remain in coarse and incomplete high-level feature extraction and network architecture optimization. This paper pioneers the use of the CLIP (Contrastive Language-Image Pre- ...

Article GUID: 39771685


Translating Evidence-Based Self-Management Interventions Using a Stepped-Care Approach for Patients With Cancer and Their Caregivers: A Pilot Sequential Multiple Assignment Randomized Trial Design

Author(s): Lambert S; Moodie EEM; McCusker J; Lokhorst M; Harris C; Langmuir T; Belzile E; Laizner AM; Brahim LO; Wasserman S; Chehayeb S; Vickers M; Duncan L; Esplen MJ; Maheu C; Howell D; de Raad M;

Background: Self-directed interventions are cost-effective for patients with cancer and their family caregivers, but barriers to use can compromise adherence and efficacy. Aim: Pilot a Sequential Multiple Assignment Randomized Trial (SMART) to develop a time-varying dyadic self-management interv ...

Article GUID: 39763142


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