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L. Sebastian Contreras-Huerta Profile
L. Sebastian Contreras-Huerta

@lsebastian_ch

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A/Prof at @Psicologia_UAI, researching the neural and cognitive bases of social decisions. Former @OxExpPsy and @TheCHBH

Viña del Mar, Chile
Joined July 2018
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
💥I'm thrilled to announce that our paper "A reward self-bias leads to more optimal foraging for ourselves than others" is now published in Scientific Reports! 🧵Curious how self-bias shapes dynamic decision-making? Read it here:
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@lsebastian_ch
L. Sebastian Contreras-Huerta
5 months
RT @brain_apps: Announcing the second 'Computational Social Cognition Summer School' @unibirmingham and Uni. Leiden. Keynotes from @DianaTa….
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
And thanks to @KubraFethiye who wrote an amazing piece about this paper here
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
Curious to learn more? Dive into the full paper here: . Thanks to @brain_apps and @MSNlab, and co-authors @thepsychologist @Svenjakchnhff AndreaPisauro & ArnoGekiere, and @TheCHBH, @OxExpPsy @Psicologia_UAI @cscn_uai.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
This study highlights how self-bias influences decision-making, even in tasks designed without explicit self-gain motives. It reveals the adaptive mechanisms behind human foraging behaviour.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
Our findings suggest that the brain prioritises self-rewards during dynamic decisions, aligning with evolutionary theories of self-interest in resource collection. But how might these biases shift when foraging for loved ones or in cooperative settings?.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
Interestingly, autistic traits influenced how participants processed self-rewards but not others' rewards. This highlights fascinating individual differences in how we make dynamic decisions and opens exciting new research directions.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
Across two studies, we found a clear self-bias: Participants were more sensitive to immediate rewards (foreground rates) when foraging for themselves. However, they adapted equally well to the average reward rate (background) in both self and prosocial contexts.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
In our task, participants collected rewards for themselves and others, deciding when to switch patches. Switching came at a cost: 'travel time' with no rewards. We tested high/low-yield patches and rich/poor environments. Would self-bias affect their performance?.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
According to the Marginal Value Theorem, you should leave a patch when its reward rate (foreground) drops below the environment's average reward rate (background).
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
To test this, we used a foraging decision-making task inspired by behavioural ecology. Organisms face a crucial question: When should you leave a patch as resources deplete and search for another?.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
We know people prioritise their own rewards over others'. But does this 'self-bias' make us better at collecting rewards for ourselves versus others in dynamic, ever-changing environments?.
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@lsebastian_ch
L. Sebastian Contreras-Huerta
7 months
RT @brain_apps: I would be grateful for the retweets. Open PhD position in my group to look at using cognitive computational Neuro approach….
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@lsebastian_ch
L. Sebastian Contreras-Huerta
8 months
And she won the best poster in the conference! So proud @FioMacchiavello
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@lsebastian_ch
L. Sebastian Contreras-Huerta
8 months
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@lsebastian_ch
L. Sebastian Contreras-Huerta
8 months
I couldn't be prouder! My first student as PI, Fiorella Macchiavello, presenting her first poster at her first scientific conference @CentroCOES, held at @UAI_VINA. Happy student, happy supervisor, happy science!
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@lsebastian_ch
L. Sebastian Contreras-Huerta
9 months
RT @UAI_VINA: AHORA 🟠. Nuestro académico @Psicologia_UAI Sebastián Contreras expone sobre “Neurociencia en la toma de decisiones”, en el ma….
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@lsebastian_ch
L. Sebastian Contreras-Huerta
9 months
RT @CentroCOES: 🎓¡No te pierdas la XI Conferencia Internacional COES!. En esta conferencia exploraremos cómo la incertidumbre impacta el co….
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@lsebastian_ch
L. Sebastian Contreras-Huerta
9 months
RT @boryana_td: It's OUT! 🥳My first (shared) first author paper with @kim_doell, Madalina, @jayvanbavel and our 254 amazing collaborators i….
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@lsebastian_ch
L. Sebastian Contreras-Huerta
11 months
RT @CentroCOES: 📢 ¡Atención investigadores! Se ha extendido el plazo para el call for papers de la XI Conferencia Internacional de COES.….
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