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Posts by Alessandro Piccin

PVM โ€“ Plateforme de Vectorologie de Montpellier | Plateau IGMM This non-profit vector core was created in 2013 to provide CAV-2 vectors to our colleagues for fundamental and preclinical research.

Shoutout to Eric J. Kremer and @marina-igmm.bsky.social of @igmm-montpel.bsky.social for these CAV2 PRS constructs. You can find them here: plateau-igmm.pvm.cnrs.fr

1 month ago 1 0 0 0

Maybe now the OFC will be your favorite prefrontal region too!

1 month ago 1 0 0 0

Not sure what was translated, since the post is already in English, but yes - broader/plain-language way of referring to a positive RPE (previously non-reinforced action suddenly producing a reward)

1 month ago 0 1 0 0

Thanks Ben!

1 month ago 0 0 0 0

A real team effort alongside Hadrien Plat, @dryacinetensaouti.bsky.social, @mathieuwolff.bsky.social, Alain Marchand and @ecoutureau.bsky.social. Grateful to @neurobordeaux.bsky.social, @univbordeaux.bsky.social, @agencerecherche.bsky.social and @bbrfoundation.bsky.social for the support.

1 month ago 3 0 1 0
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Orbitofrontal noradrenaline acts as an early gate for reversal learning Piccin et al. find that surprising rewards trigger brief orbitofrontal noradrenergic bursts whose magnitude predicts reversal learning speed. Targeted manipulation of noradrenergic neurons projecting ...

Very proud to share our most recent work, now out in
@cp-cellreports.bsky.social ๐ŸŽ‰๐ŸŽ‰๐ŸŽ‰

We show that brief noradrenergic signals in the orbitofrontal cortex, triggered by surprising rewards, support reversal learning and predict how quickly animals adapt.

www.cell.com/cell-reports...

1 month ago 36 14 4 1
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New Dispatch in @currentbiology.bsky.social w/ @RobinPiquet & @dryacinetensaouti.bsky.social highlighting elegant work from the @iordanova.bsky.social lab that formally disentangles whether dopamine signals reward prediction errors or value.

authors.elsevier.com/a/1ldGk3QW8S...

7 months ago 19 8 0 2
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As Chair of the Bordeaux Neurocampus Parity and Inclusion Committee, Iโ€™m pleased to share weโ€™ve received generous CNRS funding to expand our inclusion efforts. Thanks to @neurobordeaux.bsky.social and CNRS for the support, which enables us to keep building a more inclusive research environment.

11 months ago 13 6 0 0
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Reference Point-Dependent Reinforcement Learning in Humans and Rats Previous studies indicate that rewards and punishments in reinforcement learning are encoded in a relative manner. Reference point-dependence, a valuation bias shared by eminent adaptation level and p...

๐Ÿšจ New study alert! ๐Ÿšจ
Ever wondered if rats and humans learn in the same way? ๐Ÿญ๐Ÿง‘โ€๐Ÿ”ฌ
We tested this โ€” and the answer is yes, at least when it comes to how we value rewards in context.
(with @shaunaparkes.bsky.social Lachlan Ferguson, Magdalena Soukupova)

๐ŸงตThread ๐Ÿ‘‡

1/

www.biorxiv.org/content/10.1...

1 year ago 35 18 1 1
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Just UK and NA though... ๐Ÿ˜ข

1 year ago 1 0 0 0

Merci Dr Y ๐Ÿ™

1 year ago 1 0 0 0

Grazie Francesco :)

1 year ago 0 0 0 0

Thanks Vincent!! It's a full noradrenaline-dopamine project, so a lot of fun questions ๐Ÿ˜‰

1 year ago 2 0 0 0

It's official! I've been awarded an #MSCA Postdoctoral Fellowship to work w/ @miriammelis.bsky.social in Cagliari ๐Ÿ–๏ธ๐Ÿ‡ฎ๐Ÿ‡น

#SPICE-FONTS will investigate the role of my fav neurotransmitter #noradrenaline in neurodevelopmental deficits caused by prenatal #cannabis exposure ๐Ÿคฐ๐ŸŒฟ

Grateful @ec.europa.eu ๐Ÿ™๐Ÿ‡ช๐Ÿ‡บ

1 year ago 9 2 3 0

Grazie Mario!

1 year ago 1 0 0 0

Despite the translational failure of CRF1 receptor antagonists (see pmc.ncbi.nlm.nih.gov/articles/PMC...), these results show how some of these compounds might find new life in treating opioid-induced social deficits, which are known for worsening the clinical outcome of opioid use disorders.

1 year ago 1 0 0 0
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At last, we show that, in male mice, antalarmin abolishes morphine-induced firing in neurons co-expressing OXY and AVP, but not in neurons expressing only AVP, thereby suggesting a sex-dependent mechanism of action involving CRF1 receptors and oxytocinergic neurons of the PVN.

1 year ago 1 0 1 0
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Then, we replicate these results using the CRF1 genetic mouse model, and show that CRF1 receptor-deficiency prevents morphine-induced sociability deficits and firing of PVN neurons in a gene expression-dependent manner.

1 year ago 0 0 1 0
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In parallel, we show that antalarmin also eliminates morphine-induced firing of PVN neurons in a sex-dependent manner.

1 year ago 0 0 1 0
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First of all, we show that per os administration of the CRF1 receptor antagonist antalarmin completely abolishes sociability deficits induced by morphine, although exclusively in male mice.

1 year ago 0 0 1 0

Briefly, we investigated whether #CRF1 receptors play a role in the social deficits induced by #morphine and whether they affect the activity of #oxytocin (OXY) and #vasopressin (AVP) -expressing neurons of the paraventricular nucleus of the hypothalamus (#PVN).

1 year ago 0 0 1 0
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Disruption of the CRF1 receptor eliminates morphine-induced sociability deficits and firing of oxytocinergic neurons in male mice Both genetic and pharmacological studies reveal an essential role for the CRF1 receptor in social behavior deficits induced by a single morphine administration in male, but not in female, mice.

Let's just say that when these experiments took place I had no idea where Wuhan was or how to change a diaper. So, you can just imagine how relieved I am to see this work out! A smooth and positive experience with the new
@elife.bsky.social model, which I recommend.

1 year ago 6 0 3 0