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X-WR-CALNAME:Bordeaux Neurocampus
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X-WR-CALDESC:Events for Bordeaux Neurocampus
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DTSTART:20250330T010000
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DTSTART;TZID=Europe/Paris:20250404T100000
DTEND;TZID=Europe/Paris:20250404T100000
DTSTAMP:20260407T091857
CREATED:20250320T124850Z
LAST-MODIFIED:20250320T124850Z
UID:181891-1743760800-1743760800@www.bordeaux-neurocampus.fr
SUMMARY:Seminar - Raunak Basu
DESCRIPTION:Venue: Centre Broca \n\n \nRaunak Basu\nEdmond and Lily Safra Center for Brain Sciences\nThe Hebrew University of Jerusalem \nInvited by Naoya Takahashi (IINS) \nTitle\nA topology-preserved schema of space in the orbitofrontal cortex \nAbstract\nSuccessful goal-directed navigation requires estimating one’s current position in the environment\, representing the future goal location\, and maintaining a map that preserves the topological relationship between positions. In addition\, we often need to implement similar navigational strategies in a continuously changing environment\, thereby necessitating certain invariance in the underlying spatial maps. Although previous research has identified spatial maps in the hippocampus and parahippocampal cortices\, these maps encode the current position of an animal and is context-dependent\, whereby changing the room or shape of the arena results in a new map orthogonal to the previous one. These observations raise the question\, are there other spatial maps that fulfill the cognitive requirements necessary for goal-directed navigation? Using a goal-directed navigation task with multiple reward locations\, we observed that neurons in the orbitofrontal cortex (OFC) exhibit distinct firing patterns depending on the goal location\, and this goal-specific activity originates before the onset of the journey. Further\, the difference in the ensemble firing patterns representing two target locations is proportional to the physical distance between these locations\, implying the preservation of spatial topology. Finally\, carrying out the task across different spatial contexts revealed that the mapping of target locations in the OFC is largely preserved and that the maps formed in two different contexts occupy similar neural subspaces. Taken together\, the OFC forms a topology-preserved schema of spatial locations that is used to represent the future spatial goal\, making it a potentially crucial brain region for planning context-invariant goal-directed navigational strategies. \n
URL:https://www.bordeaux-neurocampus.fr/en/event/seminar-raunak-basu/
CATEGORIES:For scientists,home-event,Impromptu seminar
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DTSTART;TZID=Europe/Paris:20250404T113000
DTEND;TZID=Europe/Paris:20250404T113000
DTSTAMP:20260407T091857
CREATED:20241125T095655Z
LAST-MODIFIED:20250327T125242Z
UID:177974-1743766200-1743766200@www.bordeaux-neurocampus.fr
SUMMARY:Friday seminar - Manuel Mameli
DESCRIPTION:Venue: Centre Broca \n\nManuel Mameli\nUniversité de Lausanne\nhttps://dnf-unil.ch/group/m-lab/member/mameli-manuel-mameli\nhttps://scholar.google.fr/citations?user=6aJzAbcAAAAJ&hl=en \nInvited by Mario Carta (IINS)\n \nTitle\nNeural circuit mechanisms of negative affect \nAbstract\nOver the course of the last decades\, considerable progress has been made in identifying brain areas contributing to adult-newborn interactions including parental behaviors. However\, the cell-types\, ensemble dynamics and their relevance for the human brain remain obscure. My talk will discuss neural circuits of negative affect and place them in the framework of adult-newborn interactions highlighting their role for innate and specific social behaviors.\n
URL:https://www.bordeaux-neurocampus.fr/en/event/friday-seminar-manuel-mameli/
CATEGORIES:For scientists,home-event,IINS,Seminars
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