344 results match your criteria: "CERVO brain research centre[Affiliation]"

Involvement of muscarinic acetylcholine receptor-mediated cholinergic neurotransmission in TMS-EEG responses.

Prog Neuropsychopharmacol Biol Psychiatry

October 2024

Department of Neurology & Stroke, University of Tübingen, Germany; Hertie Institute for Clinical Brain Research, University of Tübingen, Germany. Electronic address:

The combination of transcranial magnetic stimulation and electroencephalography (TMS-EEG) is emerging as a valuable tool for investigating brain functions in health and disease. However, the detailed neural mechanisms underlying TMS-EEG responses, including TMS-evoked EEG potentials (TEPs) and TMS-induced EEG oscillations (TIOs), remain largely unknown. Combining TMS-EEG with pharmacological interventions provides a unique opportunity to elucidate the roles of specific receptor-mediated neurotransmissions in these responses.

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Background: Although episodic memory is the primary concern in individuals with mild cognitive impairment (MCI), other cognitive functions may also be affected, including language. Language impairment in individuals with MCI has been attributed primarily to the breakdown of semantic representations, difficulties in accessing semantic information, and the weakening of executive functions. However, in most prior studies of word processing in individuals with MCI, researchers have used measures focused on noun production.

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Article Synopsis
  • High rates of psychiatric comorbidities, including psychotic disorders, are observed in individuals with problem gambling (PBG), impacting their treatment and recovery.* -
  • A systematic review of 22 studies found the overall prevalence of psychotic disorders among PBG individuals to be 4.9%, with variations based on whether they were in treatment or surveyed.* -
  • The review emphasizes the importance of screening for psychotic disorders and other mental health conditions in problem gamblers to better address their recovery needs.*
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Objectives: The aim of this study was to analyze the Chinese version of the Nociception Coma Scale-Revised in patients with prolonged disorders of consciousness within the framework of Rasch modeling, including investigating the invariance of total scores across different etiologies of disorders of consciousness.

Design: Prospective psychometric study.

Participants: Patients with prolonged disorders of consciousness from the Rehabilitation and Neurology units in hospital.

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Exploring SCN5A variants associated with atrial fibrillation in atrial cardiomyocytes derived from human induced pluripotent stem cells: A characterization study.

Heart Rhythm

September 2024

CERVO Brain Research Centre, Quebec City, Quebec, Canada; Department of Medicine, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada. Electronic address:

Background: Atrial fibrillation (AF) poses a major risk for heart failure, myocardial infarction, and stroke. Several studies have linked SCN5A variants to AF, but their precise mechanistic contribution remains unclear. Human induced pluripotent stem cells (hiPSCs) provide a promising platform for modeling AF-linked SCN5A variants and their functional alterations.

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White matter, and why twin resemblance can still matter.

Phys Life Rev

December 2024

Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Cundill Centre for Child and Youth Depression Centre for Addiction & Mental Health, Toronto, ON, Canada; CERVO Brain Research Centre, Quebec Mental Health Institute, Quebec City, QC, Canada; Department of Psychiatry and Neuroscience, Universite Laval, Quebec City, QC, Canada. Electronic address:

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To explore workers' well-being during COVID-19, researchers have primarily utilized variable-centered approaches (e.g., regression) focusing on describing workers' general level of well-being.

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Article Synopsis
  • This study focuses on the genetic factors contributing to vertigo, particularly in Asian populations, as previous research has mostly centered on Europeans.
  • Researchers conducted a large genome-wide association study and identified two significant genomic loci (DROSHA and ZNF91/LINC01224) linked to vertigo, with some findings consistent across different ancestries.
  • Individuals with certain genetic risk factors are 1.74 times more likely to experience vertigo, and the study proposes that these findings could help identify high-risk individuals and enhance understanding of vertigo's underlying mechanisms.
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Huntington's disease (HD) is a rare genetic neurodegenerative disorder caused by an expansion of CAG repeats in the Huntingtin (HTT) gene. One hypothesis suggests that the mutant HTT gene contributes to HD neuropathology through transcriptional dysregulation involving microRNAs (miRNAs). In particular, the miR-132/212 cluster is strongly diminished in the HD brain.

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This paper describes three datasets which include 443 folders and approximately 4430 images. The images were obtained from the interior of a 1:50 scale model using a fisheye camera connected to a Raspberry Pi microcomputer. This dataset aims to analyze the photobiological effects (visual and non-visual) of the interplay between coloured surfaces and different types of lighting strategies.

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Cognitive Motor Dissociation in Disorders of Consciousness.

N Engl J Med

August 2024

From the Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital (Y.G.B., J.T.G.), and the Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital (B.L.E.), Charlestown, and the Center for Neurotechnology and Neurorecovery, Massachusetts General Hospital (Y.G.B., C.C., P.K.L., A.M., W.R.S., B.L.E.), the Department of Physical Medicine and Rehabilitation, Harvard Medical School (Y.G.B., J.T.G.), and the Department of Neurology, Massachusetts General Hospital and Harvard Medical School (Y.G.B., C.C., B.L.E.), Boston - all in Massachusetts; the Department of Neurosciences, Addenbrookes Hospital (J.A.), and the Department of Clinical Neurosciences (J.A., S.C., E.K., V.C.L., J.P., E.A.S.), the Division of Neurosurgery, School of Clinical Medicine (S.C., P.F., E.K., J.P.), the Wolfson Brain Imaging Centre (V.C.L., D.M., J.P.), and the Division of Anaesthesia, Department of Medicine (D.M., E.A.S.), University of Cambridge, Cambridge, and the School of Computing, University of Kent, Canterbury (S.C.) - all in the United Kingdom; the Coma Science Group, GIGA Consciousness, University of Liege (P.C., A.B., C.C., O.G., S.L., A.T.), and Centre du Cerveau, University Hospital of Liege (P.C., A.B., C.C., O.G., A.T.), Liege, and the European Research Council Executive Agency, Brussels (C.C.) - all in Belgium; the Department of Neurology, Columbia University Irving Medical Center, New York-Presbyterian Hospital (J. Carmona, G.H., A. Velazquez, A. Vrosgou, J. Claassen), the Feil Family Brain and Mind Research Institute (M.C., J.E.H., J.D.V., N.D.S.), the Division of Medical Ethics (J.E.H., J.J.F.), and the Departments of Neurology (J.D.V., N.D.S.) and Radiology (H.U.V.), Weill Cornell Medicine, Rockefeller University Hospital (J.J.F., J.D.V., N.D.S.), and the Department of Population Health Science and Policy, Center for Biostatistics, Icahn School of Medicine at Mount Sinai (E.B.) - all in New York; Collège de France, Université Paris Sciences et Lettres (S.D.), Sorbonne Université, Paris Brain Institute-Institut du Cerveau et de la Moelle Épinière, INSERM, Centre National de la Recherche Scientifique (B.R., J.D.S., M.V., L.N.), and Assistance Publique-Hopitaux de Paris, Hôpital Pitié-Salpêtrière, Département Médico-Universitaire Neurosciences (B.R., M.V., L.N.) - all in Paris; the Departments of Physics and Astronomy (A.S.), Physiology and Pharmacology (A.M.O.), and Psychology (A.M.O.), and the Western Institute for Neuroscience (A.S., A.M.O.), University of Western Ontario, London, ON, and the CERVO Brain Research Centre, Quebec, QC (S.L.) - all in Canada; Yale Law School, New Haven, CT (J.J.F.); and the Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China (S.L.).

Background: Patients with brain injury who are unresponsive to commands may perform cognitive tasks that are detected on functional magnetic resonance imaging (fMRI) and electroencephalography (EEG). This phenomenon, known as cognitive motor dissociation, has not been systematically studied in a large cohort of persons with disorders of consciousness.

Methods: In this prospective cohort study conducted at six international centers, we collected clinical, behavioral, and task-based fMRI and EEG data from a convenience sample of 353 adults with disorders of consciousness.

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Objective: The objective of the current pilot study was to investigate the feasibility and acceptability of a videoconference-based cognitive behavioral (CBT) intervention for caregivers of individuals living with mild cognitive impairment or early Alzheimer's disease. The intervention included psychoeducation on emotions, strategies for management of unhelpful emotions and thoughts, behavioral activation, breathing and relaxation, strategies for communication and information on external resources.

Methods: This study used a cross-sectional design with two groups of four caregivers who received an 8-week CBT-based intervention via videoconference.

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Consciousness has been proposed to be supported by electrophysiological patterns poised at criticality, a dynamical regime which exhibits adaptive computational properties, maximally complex patterns and divergent sensitivity to perturbation. Here, we investigate dynamical properties of the resting-state electroencephalogram (EEG) of healthy subjects undergoing general anesthesia with propofol, xenon or ketamine. Importantly, all participants were unresponsive under anesthesia, while consciousness was retained only during ketamine anesthesia (in the form of vivid dreams), enabling an experimental dissociation between unresponsiveness and unconsciousness.

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High-throughput low-cost digital lickometer system for the assessment of licking behaviours in mice.

J Neurosci Methods

October 2024

Université Laval, Department of Psychiatry and Neuroscience, Quebec, Canada; CERVO Brain Research Centre, Université Laval, Québec, QC, Canada. Electronic address:

Background: Proper hydration is essential for maintaining health and supports various biological processes, including temperature regulation, immune function, nutrient delivery, and organ function. Visual assessment has traditionally been used to quantify liquid intake, although technological advances in optical and electrical sensors now offer higher accuracy and larger potential for automatic operation with millisecond precision and individual lick resolution.

New Method: We describe an inexpensive electronic sensor board to monitor mouse licking behavior.

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This paper details an imagery dataset of interior and exterior ambiances to assess and represent photobiological outcomes of the built environment in northern territories. The images were obtained using a Raspberry Pi Camera Module (RPiCM) mounted in a holder that fixes the camera in place. This holder allows to rotate the camera by 30° and take 12 high dynamic range (HDR) images which are then combined to create a panoramic image.

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Objective: The production of words in verbal fluency tests relies heavily on executive functions and linguistic abilities. New tests such as the famous people fluency test can also be useful in clinical practice and research. This test, in which participants are asked to name so many famous people, has the potential to distinguish healthy individuals from participants with neurological disorders such as mild cognitive impairment or Alzheimer's disease.

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Psychotic Disorders and exosomes: An overview of current evidence and future directions.

Psychiatry Res

September 2024

Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Centre, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Université Laval, Québec, QC G1V 0A6, Canada. Electronic address:

Due to its reliance on heterogeneous symptomatology, the accurate diagnosis of psychotic disorders remains a challenging task in clinical practice. Precise and early diagnosis of psychotic disorders facilitates early intervention, which has been shown to have substantial benefits for long-term outcomes. Still, the lack of specific biomarkers is an important limitation in early diagnosis and intervention.

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Musical expertise has been proven to be beneficial for time perception abilities, with musicians outperforming nonmusicians in several explicit timing tasks. However, it is unclear how musical expertise impacts implicit time perception. Twenty nonmusicians and 15 expert musicians participated in an EEG recording during a passive auditory oddball paradigm with 0.

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Macina et al. (2023) recently reported mixed results on the German translation of the Self and Interpersonal Functioning Scale (SIFS). By focusing on suboptimal indices of structural validity, they recommended choosing other available instruments over the SIFS in future research on personality impairment.

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Article Synopsis
  • Protein misfolding and mislocalization are key issues in both familial and sporadic ALS, making the maintenance of protein balance through heat shock proteins (HSPs) an important treatment strategy, but neurons have a high threshold for this response.
  • In experiments with mouse models of ALS, the drugs arimoclomol and RGFP963 showed mixed results: they didn't increase HSP expression in FUS mice but helped improve cognitive function and dendritic spine density.
  • In SOD1 mice, some HSPs were upregulated in muscle but not in spinal cord, with drug treatments enhancing muscle performance without promoting HSP expression, suggesting alternate
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Neuroimaging studies have suggested an important role for the default mode network (DMN) in disorders of consciousness (DoC). However, the extent to which DMN connectivity can discriminate DoC states-unresponsive wakefulness syndrome (UWS) and minimally conscious state (MCS)-is less evident. Particularly, it is unclear whether effective DMN connectivity, as measured indirectly with dynamic causal modelling (DCM) of resting EEG can disentangle UWS from healthy controls and from patients considered conscious (MCS+).

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Spatiotemporal dynamics of brain activity in cognition and consciousness: Comment on "Beyond task responsePre-stimulus activity modulates contents of consciousness" by Northoff, Zilio, and Zhang.

Phys Life Rev

September 2024

Joint International Research Unit on Consciousness, CERVO Brain Research Centre, Laval University, Canada; GIGA Consciousness Research Unit and Coma Science Group, Liège University, Belgium; International Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China.

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After a severe brain injury and a coma, patients may develop disorders of consciousness (DoC), frequently accompanied by severe dysphagia. The evaluation and therapy of swallowing are therefore essential aspects of their management. Objectives: This study aims to evaluate the SWallowing Assessment in Disorders of Consciousness (SWADOC) tool in the assessment of swallowing in post-comatose patients.

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