Front news

Mémoire de peur : les réseaux cérébraux se réorganisent au cours du temps

© Philippe Litaudon/Chloé Hégoburu

Des chercheurs du CRNL et du CERMEP ont publié les résultats de leurs recherches sur la mémoire de la peur dans le Cerebral Cortex du 20 octobre 2021.

Les mémoires de peur sont particulièrement fortes et résistantes à l’oubli malgré le temps qui passe. Grâce à une méthode d’imagerie cérébrale initialement développée pour les études chez l’humain, les scientifiques ont recherché, sur un modèle animal, si les réseaux cérébraux servant de support aux mémoires de peur se réorganisent au cours du temps. Leurs résultats, publiés dans la revue Cerebral Cortex, montrent que si la mémoire récente active un réseau cérébral très étendu, celui activé par une mémoire de peur ancienne est limité au cortex sensoriel.

Pour en savoir plus :
PET metabolic imaging of time-dependent reorganization of olfactory cued fear memory networks in rats.
Mouly A-M, Bouillot C, Costes N, Zimmer L, Ravel N, Litaudon P
Cerebral Cortex 20 octobre 2021. https://doi.org/10.1093/cercor/bhab376

© Philippe Litaudon/Chloé Hégoburu

Lors des parades amoureuses ou endormis, les oiseaux contractent leurs pupilles

© Gianina Ungurean, Niels Rattenborg et Paul-Antoine Libourel

Des chercheurs ont publié les résultats de leurs recherches sur le sommeil des oiseaux dans le Current Biology du 19 octobre 2021.

La pupille régule la quantité de lumière qui pénètre dans l'œil, mais reflète également l'état du cerveau. Chez les mammifères, elle se resserre pendant le sommeil profond lent et se dilate pendant le sommeil paradoxal. Cette étude, publiée dans la revue Current Biology, montre que chez les oiseaux, c'est exactement le contraire qui se produit. Chez le pigeon, pendant l'éveil et le sommeil paradoxal, les pupilles deviennent plus petites, alors qu'elles s'agrandissent pendant le sommeil lent. Le comportement pupillaire inattendu des oiseaux ouvre ainsi une nouvelle fenêtre sur le cerveau endormi, ce comportement étant notamment retrouvé pendant les parades amoureuses.

Pour en savoir plus :
Pupillary behavior during wakefulness, non-REM sleep, and REM sleep in birds is opposite that of mammals
Gianina Ungurean, Dolores Martinez-Gonzalez, Bertrand Massot, Paul-Antoine Libourel, Niels Christian Rattenborg
Current Biology 19 octobre 2021.

© Gianina Ungurean, Niels Rattenborg et Paul-Antoine Libourel

A great success for the on-board conferences!

Conférences embarquées - Crédits photo CNRS Rhône Auvergne

On Saturday afternoon, August 28, 2021, at the initiative of the CNRS, about thirty researchers embarked on the lake of the Parc de la Tête d'Or to present their research to the general public.
Two CRNL researchers (Nadine Ravel and Maud Beaudoin) were able to show their work to a few privileged people during a boat trip!

A great experience to make our work accessible!

 

© CNRS Rhône Auvergne

INFO VALO : Proud of the winners "made in CRNL"!

i-Lab i-PhD

Innovation competitions: 3 winners 2021 from the CRNL boosted by Pulsalys in the i-PhD and i-Lab categories:
Audrey Vialatte (TRAJECTOIRES CRNL), i-PhD winner, leader of the LudiSymboles project
Silvia Macchione (IMPACT CRNL), i-PhD winner, leader of the Face à Main project
Jordan Guyon, i-Lab winner, CEO of Gaoma Therapeutics (the startup  is based on the results of TIGER CRNL)

Gender bias in academia: A lifetime problem that needs solutions

Aurélie Bidet-Caulet

Aurélie BIDET-CAULET (PAM CRNL), co-signs this article recently published in Neuron. They “argue that gender bias is not a single problem but manifests as collection of distinct issues that impact researchers' lives. They dientangle these facets and propose concrte solutions that can be adpted by individuals, academic institutions, and society“.

Elles, Ils sont l'Inserm - Portrait of Gaëtan Amorim, GenCyTi CRNL

Gaetan_Amorim_Elles_Ils_sont_l_Inserm

Following the implementation within Inserm of the "Plan for professional equality between women and men", Inserm wanted to highlight, through video testimonies, the women and men who make and are Inserm at the local level.

The 3rd episode is the testimony of Gaëtan AMORIM, Research Technician at the GenCyTi CRNL platform.

Three young researchers are joining the CRNL! Portrait of Audrey Hay

Audrey_Hay

They have passed the external Inserm and CNRS research fellowships and will respectively join the EDUWELL team for Romain Quentin, PSYR2 for Jacqueline Scholl and WAKING for Audrey Hay.

We welcome them and congratulate them!

Today, the portrait of Audrey Hay, CR CNRS who joins the WAKING CRNL team. The last portraits will follow!

Three young researchers are joining the CRNL! Portrait of Romain Quentin

Romain Quentin

They have passed the external Inserm and CNRS research fellowships and will respectively join the EDUWELL team for Romain Quentin, PSYR2 for Jacqueline Scholl and WAKING for Audrey Hay.

We welcome them and congratulate them!

Today, the portrait of Romain Quentin, CR Inserm who joins the EDUWELL CRNL team. The other portraits will follow!

Simon Thibault received Society for Neural Control of Movement (NCM) award !

Simon Thibault

Simon Thibault, PhD student at IMPACT CRNL, supervised by Claudio Brozzoli (IMPACT CRNL) and Alice Roy (DDL), in collaboration with Véronique Boulenger (DDL), received this year's Society for Neural Control of Movement (NCM) award.

At the conference organised by NCM, Simon presented some of the results of his thesis project: through behavioural and functional neuroimaging studies, Simon investigated the links between language syntax and tool use, testing the hypothesis that a common function serves both skills.

What are the effects of Montessori preschool education in the French public school system?

Montessori

Montessori education is becoming increasingly popular in many preschools in France and around the world. However, studies evaluating its effects on early childhood development are rare. In an article published in the journal Child Development, scientists from EDUWELL CRNL and TRAJECTOIRES CRNL describe the results of the first randomized controlled study comparing the Montessori method to conventional teaching in a French public preschool.

https://doi.org/10.1111/cdev.13575