Ali Shiravand
@alishiravand.bsky.social
300 followers 510 following 16 posts
Doctoral student & Normalien in cognitive neuroscience at ENS Paris-PSL University, Human Reinforcement Learning Team | Interested in photography & decision-making
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alishiravand.bsky.social
Great initiative:
The Max Planck AI Network PhD Program
ai.mpg.de
Home
ai.mpg.de
Reposted by Ali Shiravand
stepalminteri.bsky.social
Check out @bcdavidson.bsky.social's preprint (w/ @georgiaturner.bsky.social @orbenamy.bsky.social @livia-tomova.bsky.social and co.) about the (computational) consequences of social isolation in social media use during covid!
bcdavidson.bsky.social
🚨 New Preprint 🚨

Prolonged Isolation is associated with an increased behavioural sensitivity to ‘Likes’ on social media.

🧵

Social media rewards are inherently social—but does posting change during social isolation, when in-person social rewards are limited?

It turns out, yes!
Reposted by Ali Shiravand
stepalminteri.bsky.social
New paper our in @pnas.org, lead by @isabellehoxha.bsky.social with Léo Sperber. We use evolutionary simulation to assess and compare the adaptive value of positivity bias and gradual perseveration in reinforcement learning. Follow the thread below (and Isabelle!) for more details!
isabellehoxha.bsky.social
Ever wondered why you keep going to that restaurant with stale fries? Is it because you went often in the past (perseveration) or because you remember past good experiences better (positivity bias)? Our study out in PNAS investigates the normative basis for these biases www.pnas.org/doi/10.1073/...
Evolving choice hysteresis in reinforcement learning: Comparing the adaptive value of positivity bias and gradual perseveration | PNAS
The tendency to repeat past choices more often than expected from the history of outcomes has been repeatedly empirically observed in reinforcement...
www.pnas.org
Reposted by Ali Shiravand
isabellehoxha.bsky.social
Ever wondered why you keep going to that restaurant with stale fries? Is it because you went often in the past (perseveration) or because you remember past good experiences better (positivity bias)? Our study out in PNAS investigates the normative basis for these biases www.pnas.org/doi/10.1073/...
Evolving choice hysteresis in reinforcement learning: Comparing the adaptive value of positivity bias and gradual perseveration | PNAS
The tendency to repeat past choices more often than expected from the history of outcomes has been repeatedly empirically observed in reinforcement...
www.pnas.org
alishiravand.bsky.social
I'm feeling very glad & grateful these days to be part of neuroeconomics summer school in Fontainebleau! 👾
Reposted by Ali Shiravand
timkietzmann.bsky.social
Hi, we will have three NeuroAI postdoc openings (3 years each, fully funded) to work with Sebastian Musslick (@musslick.bsky.social), Pascal Nieters and myself on task-switching, replay, and visual information routing.

Reach out if you are interested in any of the above, I'll be at CCN next week!
Reposted by Ali Shiravand
neuroprinciplist.bsky.social
Excited about #CCN2025 and sharing our research in @cmc-lab.bsky.social!
cmc-lab.bsky.social
We are heading to #CCN2025 in Amsterdam with 3 awesome posters! Thread below 👇

B71, Wed, 1pm-4pm: 2025.ccneuro.org/poster/?id=8...
B90, Wed, 1pm-4pm: 2025.ccneuro.org/poster/?id=o...
C169, Fri, 2pm-5pm: 2025.ccneuro.org/poster/?id=l...
Poster Presentation
2025.ccneuro.org
alishiravand.bsky.social
\ generalizable truths about the real world. He cautions against treating elegant models as universally predictive, emphasizing that their insights are often context-dependent and lack external validity. He treats models as stylized narratives, not truth machines.
alishiravand.bsky.social
I've recently come across Ariel Rubinstein's argument that models are stories, mathematical ones, but stories nonetheless. Economic models should be viewed like fairytales: they illustrate specific ideas within narrowly defined settings but shouldn’t be assumed to offer \
alishiravand.bsky.social
I recently took part in an amazing experience at the “Solve for Healthcare & Life Sciences with Gemma” hackathon, organized by Google Paris!
Our team worked on triage in emergency rooms, improving communication, prioritization and decision-making in critical circumstances.
Reposted by Ali Shiravand
iyadrahwan.bsky.social
🚨 New preprint 🚨

Experimental Evidence for the Propagation and Preservation of Machine Discoveries in Human Populations

arxiv.org/abs/2506.17741

with team members @levinbrinkmann.bsky.social @thomasfmueller.bsky.social Ann-Marie Nussberger, @maximederex.bsky.social, Sara Bonati, Valerii Chirkov
Reposted by Ali Shiravand
mlisi.bsky.social
Registration is open for the Summer School on Computational Decision Sciences, 8–12 Sept

Join us in London for a week of cutting-edge research on decision-making, AI, cognitive science and more!

(free, register by 11Aug)

center-decision-sciences.com/cds-summer-s...
#PsychSciSky 🧠 #neuroskyence🧪
CDS Summer School
Program Registration Schedule Directions 8th – 12th September, 2025 The Center for Decision Sciences will be hosting a summer school during the second week of September, 2025 and taking place…
center-decision-sciences.com
Reposted by Ali Shiravand
thecharleywu.bsky.social
New poster for the local pre- #cogsci2025 workshop I am organizing at @unituebingen.bsky.social with generous support from @ml4science.bsky.social Please share widely! Accepted Cogsci papers are not required to present a talk/poster! Also feel free to just come and checkout some cool research!
Reposted by Ali Shiravand
natrevpsychol.nature.com
Distinguishing performance gains from learning when using generative AI

Comment by Lixiang Yan, Samuel Greiff, Jason M. Lodge & Dragan Gašević

go.nature.com/3FJqTq3
Reposted by Ali Shiravand
thecharleywu.bsky.social
🚀Join our team @tuda.bsky.social ! 🚀
I'm looking for 3 PhDs & 1 Postdoc for my @erc.europa.eu project “C4: Compositional Compression in Cognition and Culture” to study learning across individuals, teams, and cultural timescales
👉 PhD: hmc-lab.com/ERC_PhDs.html
👉 Postdoc: hmc-lab.com/ERC_Postdoc....
alishiravand.bsky.social
Thanks to my wonderful collaborators and supervisors on these projects —
@stepalminteri.bsky.social @valentinwyart.bsky.social @georgiaturner.bsky.social, Ilaria, Martino, Vasilisa and Charles.
alishiravand.bsky.social
I'll be presenting two posters at #RLDM2025 in Dublin🇮🇪 – June 11, Poster Session 1:

🌀 Poster #19: How selective attention benefits and hinders learning in complex environments.

🏞️ Poster #18: NorMARL - a framework for sustaining shared resources through norm internalization.
alishiravand.bsky.social
Paris Magnolias
at the Jardin du Palais Royal ⛅
alishiravand.bsky.social
🌍 Excited to share that our paper has been accepted for an oral presentation at the International Conference on Complex Systems (FRCCS) 2025 in Bordeaux!

We demonstrate how norm internalization and learning rate influence sustainability, via a cognitively grounded multi-agent RL framework.
Reposted by Ali Shiravand
romanececchi.bsky.social
🧵 New preprint out!
📄 "Elucidating attentional mechanisms underlying value normalization in human reinforcement learning"
👁️ We show that visual attention during learning causally shapes how values are encoded
w/ @sgluth.bsky.social & @stepalminteri.bsky.social
🔗 doi.org/10.31234/osf...
OSF
doi.org
Reposted by Ali Shiravand
stepalminteri.bsky.social
🚨Preprint update!🚨
with @thecharleywu.bsky.social
Are Large Language Models (LLMs) conscious? 🧠💻
Most say: only if they replicate the brain's computations.
But we propose a shift: consciousness should be inferred from their behavior.

osf.io/preprints/ps...
OSF
osf.io