ENS - Départment de biologie

Fan YANG Visualizing dynamics of the mouse somatosensory-motor cortex in an active touch task to study predictive processing of tactile sensory information

Patricia Mangeny — 2025-12-19T13:00:00Z

14h
La soutenance de thèse de Fan YANG (sous la direction de Laurent BOURDIEU, IBENS et Isabelle FÉRÉZOU, NeuroPSI) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Soutenance de thèse

Ana Margarida PINTO Role of brainstem vestibular circuits in navigation

Patricia Mangeny — 2025-12-19T13:00:00Z

14h
La soutenance de thèse d'Ana Margarida PINTO (équipe LÉNA-POPA) aura lieu dans la salle Dussane, 45 rue d'Ulm 75005 Paris

- 2025 / Soutenance de thèse

Ahsan AYYAZ Contribution of neural dynamics in the cerebello-limbic system to fear extinction

Patricia Mangeny — 2025-12-17T13:30:00Z

14h
La soutenance d'Ahsan AYYAZ (Équipe LÉNA-POPA) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Soutenance de thèse

Margaux SIVORI Genetic architecture of the autonomic nervous system

Patricia Mangeny — 2025-12-11T13:30:00Z

14h30
La soutenance de thèse de Margaux SIVORI (Équipe BRUNET) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Soutenance de thèse

Lisa ROUX Breathing and hippocampal network activity during wake and sleep

Patricia Mangeny — 2025-12-08T10:00:00Z

11h à 12h30

Le séminaire de Lisa ROUX (Interdisciplinary Institute for Neuroscience (IINS), Université de Bordeaux, France) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

Brain activity and breathing rate influence each other but it remains unclear how the fine respiratory cycle features (e.g. inhalation amplitude or duration) impact neuronal network dynamics. By recording nasal pressure and neuronal activity in freely-moving mice, we detected respiratory pauses nested within breathing cycles that are characterized by a large variability in their duration. In wakefulness, these pauses largely dictate the respiratory rate of the animals and their onset marks drastic changes of neuronal activity when the latter is recorded within silicon probes in the olfactory piriform cortex and the hippocampus. Pause properties discriminate Wake, rapid eye movement (REM) and non-REM (NREM) sleep and accompany the infra-slow oscillations of noradrenaline and sigma power observed in NREM sleep. This seminar will address how the fine respiratory features coordinate with hippocampal circuit dynamics both in wake and sleep and reveal new relationships between brain functions and respiration.

Sophie DABO Functional Dimension Reduction Approach for Learning Models with Applications to Biology

Patricia Mangeny — 2025-12-08T09:00:00Z

10h
Le séminaire de Sophie DABO (Université de Lille) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Séminaire de l'IBENS

Dr. Weijian ZONG Miniature two-photon microscopes for studying brain microcircuits in freely moving animal

Patricia Mangeny — 2025-11-28T10:00:00Z

11h

Le séminaire du Dr. Weijian ZONG (Kavli Institute for Systems Neuroscience, Trondheim, Norvège) aura lieu dans la salle des Résistants, ENS, 45 rue d'Ulm 75005 Paris

Abstract : Understanding complex cognitive functions starts with elucidating how information is encoded and transmitted within individual brain microcircuits. To achieve this goal, we need recording techniques capable of capturing the activity of large populations of neurons with a temporal precision close to the timescale of spikes and a spatial resolution high enough to resolve their spatial organization. Moreover, these techniques should be compatible with well-established and well-validated behavioral paradigms. Traditional extracellular recording techniques have drawbacks regarding their ability to identify genetically defined cell types and are of limited use for studies of subcellular dynamics. Two-photon (2P) functional imaging stands out by offering subcellular spatial resolution and near-spike temporal resolution, so it has emerged as one of the workhorses to study neural populations' coding and computational properties. However, its application had been limited by the bulky nature of conventional 2P imaging systems, restricting studies to head-fixed animals. Over the last two decades, considerable progress has been made in developing portable microscopes specifically tailored for freely-moving-animal functional imaging. This talk introduces our recent work in developing new generations of 2P miniscopes with resolution, field of view, speed, and z-scanning capability similar to that of 2P benchtop microscopes. I will highlight key applications from my group and our collaborators, showcasing how this technology contributes to studying the neuronal computation rulesets in cortical microcircuits. Additionally, I'll discuss the current limits and perspective for future developments.

Diana PINHEIRO Embryonic Origami : The emergence of Fate and Form in vertebrate gastrulation

Patricia Mangeny — 2025-11-28T09:30:00Z

10h30
Le séminaire de Diana PINHEIRO (Research Institute of Molecular Pathology, Vienne, Autriche) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Séminaire de l'IBENS

Jeroen SMAERS Translating biodiversity to biomedicine

Patricia Mangeny — 2025-11-26T10:00:00Z

11h
Le séminaire de Jeroen SMAERS (Stony Brook University, USA) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Séminaire de l'IBENS

Anaïs BAUDOT Multimodal data integration for rare genetic diseases

Patricia Mangeny — 2025-11-25T10:30:00Z

11h30
Le séminaire d'Anaïs BAUDOT (Aix Marseille Université, Marseille, France & Barcelona Supercomputing Center, Barcelone, Espagne) aura lieu dans la salle Favard, IBENS 46 rue d'Ulm 75005 Paris

- 2025 / Séminaire de l'IBENS