J
Joseph O'Neill
Researcher at Institute of Science and Technology Austria
Publications - 19
Citations - 3093
Joseph O'Neill is an academic researcher from Institute of Science and Technology Austria. The author has contributed to research in topics: Hippocampal formation & Hippocampal replay. The author has an hindex of 16, co-authored 19 publications receiving 2546 citations. Previous affiliations of Joseph O'Neill include University of Bordeaux & Cardiff University.
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The reorganization and reactivation of hippocampal maps predict spatial memory performance.
TL;DR: This work found that remembering newly learnt goal locations required NMDA receptor–dependent stabilization and enhanced reactivation of goal-related hippocampal assemblies, and suggested that assembly firing patterns in the hippocampus represent the formation and expression of new spatial memory traces.
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Play it again: reactivation of waking experience and memory.
TL;DR: Emerging evidence suggests that sharp wave/ripple (SWR) events in the hippocampus could coordinate the reactivation of memory traces and direct their reinstatement in cortical circuits.
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Complementary Roles of Cholecystokinin- and Parvalbumin-Expressing GABAergic Neurons in Hippocampal Network Oscillations
Thomas Klausberger,László F. Márton,Joseph O'Neill,Jojanneke H. J. Huck,Yannis Dalezios,Pablo Fuentealba,Wai Yee Suen,Edit Papp,Takeshi Kaneko,Masahiko Watanabe,Jozsef Csicsvari,Peter Somogyi +11 more
TL;DR: It is suggested that the specific spike timing of cholecystokinin interneurons and their sensitivity to endocannabinoids might contribute to differentiate subgroups of pyramidal cells forming neuronal assemblies, whereas parvalbumin interneeurons contribute to synchronizing the entire network.
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Reactivation of experience-dependent cell assembly patterns in the hippocampus.
TL;DR: It is found that the sleep cofiring of rat CA1 pyramidal cells encoding similar places increased relative to the sleep session before exploration, and was strongest between cells representing the most visited places, indicating that reactivated patterns are shaped by both positive and negative changes in cof firing, which are determined by recent behavior.
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Place-Selective Firing of CA1 Pyramidal Cells during Sharp Wave/Ripple Network Patterns in Exploratory Behavior
TL;DR: It is suggested that place-selective firing during eSWRs facilitates initial associations between cells with similar place fields that enable place-related ensemble patterns to recur during subsequent sleep-SWRs.