Justin Flaven

Postdoctoral Researcher
“Centro Interdisciplinario de Neurociencia de Valparaíso”.
Research Area : Neurogenetic and Behavior.
Neurogenetic and Development Laboratory, Professor John Ewer Lothian

Ph.D. in Neuroscience, Université de bourgogne, France (2013).
Master in Neuroscience, Behavior and Cognition, Université de Toulouse 3, France (2010).
Graduate in Biology, Physiology, Université Claude Bernard Lyon 1, France (2007).
Curriculum Vitae

Contact Information:

E-mail: Justin.flaven@cinv.cl, jujuflaven@hotmail.fr
Teléfono: 56-32-2508191
Fax: 56-32-2508047
Address: Centro Interdisciplinario de Neurociencia de Valparaíso.
Facultad de Ciencias, Universidad de Valparaíso.
Gran Bretaña 1111. Playa Ancha. Valparaíso. Chile.

Research Statement:

Despite the little size of their brain, insects show complex and precise behaviors that can vary depending on experience, environment or genes. These behaviors rely on neurobiological networks in which neuropeptides play regulatory roles that are still poorly known. Among insect behaviors, Ecdysis is an innate behavior that consists of sequentially-expressed behavioral subroutines that are used to shed the old exoskeleton at the end of the molt. This complex behavior requires a very precise neuropeptidic regulation that involves many different actors. Interestingly, these neuropeptide appears to be largely conserved among Insect species. Using Drosophila melanogaster and the red flour beetle Tribolium castaneum, I want to go further in understanding the role of various neuropeptides involved in ecdysis behavior. These insect models are powerful genetics tools that, combined with new genome editing technologies (CRISPR Systems) could allow us to dissect more precisely the ecdysis mechanisms.

I hope that a comparative point of view on neurobiological control by neuropeptides will increase our knowledge about how neuropeptides networks evolve to exhibit similar behavioral pattern in different species.


• John Ewer (Centro Interdisciplinario de Neurociencia (CINV)). Activity pattern in peptidergics neurons involve in Drosophila ecdysis behavior.


Bousquet F, Chauvel I, Flaven-Pouchon J, Farine JP, Ferveur JF. (2016) Dietary rescue of altered metabolism gene reveals unexpected Drosophila mating cues. J Lipid Res. 57(3):443-50. 

Flaven-Pouchon J, Garcia T, Abed-Vieillard D, Farine JP, Ferveur JF and Everaerts C (2014). “Transient and Permanent Experience with Fatty Acids Changes Drosophila Melanogaster Preference and Fitness.” PloS one 9(3): e92352.

Fougeron AS, Farine JP, Flaven-Pouchon J, Everaerts C and Ferveur JF (2011). “Fatty-Acid Preference Changes During Development in Drosophila Melanogaster.” PloS one 6(10): e26899.

Giurfa M, Fabre E, Flaven-Pouchon J, Groll H, Oberwallner B, Vergoz V, Roussel E and Sandoz JC (2009). “Olfactory Conditioning of the Sting Extension Reflex in Honeybees: Memory Dependence on Trial Number, Interstimulus Interval, Intertrial Interval, and Protein Synthesis.” Learning & Memory 16(12): 761-765.


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