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Replaying off the beaten path.
Science
January 2025
Institute of Behavioural Neuroscience, University College London, London, UK.
Before the hippocampus goes down memory lane, it takes a detour.
View Article and Find Full Text PDFThe time course and organization of hippocampal replay.
Science
January 2025
Department of Neuroscience, University of California, Berkeley, Berkeley, CA, USA.
The mechanisms by which the brain replays neural activity sequences remain unknown. Recording from large ensembles of hippocampal place cells in freely behaving rats, we observed that replay content is strictly organized over multiple timescales and governed by self-avoidance. After movement cessation, replays avoided the animal's previous path for 3 seconds.
View Article and Find Full Text PDFGlobal remapping emerges as the mechanism for renewal of context-dependent behavior in a reinforcement learning model.
Front Comput Neurosci
January 2025
Institute for Neural Computation, Faculty of Computer Science, Ruhr University Bochum, Bochum, Germany.
Introduction: The hippocampal formation exhibits complex and context-dependent activity patterns and dynamics, e.g., place cell activity during spatial navigation in rodents or remapping of place fields when the animal switches between contexts.
View Article and Find Full Text PDFPreliminary investigation of an artificial intelligence-based cognitive behavioral therapy training tool.
Psychotherapy (Chic)
January 2025
Lyssn.io, Inc.
We developed an asynchronous online cognitive behavioral therapy (CBT) training tool that provides artificial intelligence- (AI-) enabled feedback to learners across eight CBT skills. We sought to evaluate the technical reliability and to ascertain how practitioners would use the tool to inform product iteration and future deployment. We conducted a single-arm 2-week field trial among behavioral health practitioners who treat outpatients with psychosis.
View Article and Find Full Text PDFPermissive central tolerance plus defective peripheral checkpoints licence pathogenic memory B cells in CASPR2-antibody encephalitis.
bioRxiv
January 2025
Nuffield Department of Clinical Neurosciences, University of Oxford, OX3 9DU, Oxford, United Kingdom.
Autoimmunity affects 10% of the population. Within this umbrella, autoantibody-mediated diseases targeting one autoantigen provide a unique opportunity to comprehensively understand the developmental pathway of disease-causing B cells and autoantibodies. While such autoreactivities are believed to be generated during germinal centre reactions, the roles of earlier immune checkpoints in autoantigen-specific B cell tolerance are poorly understood.
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