Ben Jonathan Wagner
@benjwagner.bsky.social
I´m a postdoc with Tobias Hauser @Developmental Computational Psychiatry lab and Peter Dayan @mpicybernetics.bsky.social #Dopamine #DecisionMaking #ReinforcementLearning #ActiveInference #IntertemporalChoice #BrainExplorerApp
Pinned
Action repetition biases choice in context-dependent decision-making - Communications Psychology
This study shows that decision biases previously attributed to value normalization (e.g. relative value learning or range normalization) are better explained by action repetition. Repeating an action ...
www.nature.com
Very happy that this is out www.nature.com/articles/s44.... Together with @stefankiebel.bsky.social we show that decision biases in context-dependent decision making, previously attributed to different forms of value normalization, are very well explained by habit-like action repetition.
Our book chapter on intertemporal choice in Neuroeconomics: Core Topics and Current Directions is now available. We review individual differences, dopamine, and methodological approaches from model-agnostic analyses to integrated discounting drift-diffusion models. link.springer.com/chapter/10.1...
Intertemporal Choice
Intertemporal choice involves decisions between rewards available at an earlier point in time and delayed rewards (delay discounting). Such decisions are common in everyday life, influencing outcomes ...
link.springer.com
February 3, 2026 at 10:25 PM
Our book chapter on intertemporal choice in Neuroeconomics: Core Topics and Current Directions is now available. We review individual differences, dopamine, and methodological approaches from model-agnostic analyses to integrated discounting drift-diffusion models. link.springer.com/chapter/10.1...
Reposted by Ben Jonathan Wagner
🎉 psp just hit 14K+ downloads!
Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: doi.org/10.1037/rev0...
CRAN: cran.r-project.org/package=psp
Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: doi.org/10.1037/rev0...
CRAN: cran.r-project.org/package=psp
psp: Parameter Space Partitioning MCMC for Global Model Evaluation
Implements an n-dimensional parameter space partitioning algorithm for evaluating the global behaviour of formal computational models as described by Pitt, Kim, Navarro and Myung (2006) <<a href="h...
cran.r-project.org
January 15, 2026 at 11:08 AM
🎉 psp just hit 14K+ downloads!
Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: doi.org/10.1037/rev0...
CRAN: cran.r-project.org/package=psp
Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: doi.org/10.1037/rev0...
CRAN: cran.r-project.org/package=psp
I think this paper is a good read from a neuroscience perspective on how repetition and goal-directed reward learning are intertwined, resulting in short-cuts that correspond to decision biases as a function of task complexity. www.cell.com/trends/neuro...
Interacting cortico-basal ganglia-thalamocortical loops shape behavioral control through cognitive maps and shortcuts
Control of behavior is often explained in terms of a dichotomy, with distinct neural
circuits underlying goal-directed and habitual control, yet accumulating evidence
suggests these processes are deep...
www.cell.com
December 12, 2025 at 10:42 AM
I think this paper is a good read from a neuroscience perspective on how repetition and goal-directed reward learning are intertwined, resulting in short-cuts that correspond to decision biases as a function of task complexity. www.cell.com/trends/neuro...
Reposted by Ben Jonathan Wagner
Out now in Translational Psychiatry! www.nature.com/articles/s41...
November 28, 2025 at 2:53 PM
Out now in Translational Psychiatry! www.nature.com/articles/s41...
Very happy that this is out www.nature.com/articles/s44.... Together with @stefankiebel.bsky.social we show that decision biases in context-dependent decision making, previously attributed to different forms of value normalization, are very well explained by habit-like action repetition.
Action repetition biases choice in context-dependent decision-making - Communications Psychology
This study shows that decision biases previously attributed to value normalization (e.g. relative value learning or range normalization) are better explained by action repetition. Repeating an action ...
www.nature.com
November 27, 2025 at 6:43 PM
Very happy that this is out www.nature.com/articles/s44.... Together with @stefankiebel.bsky.social we show that decision biases in context-dependent decision making, previously attributed to different forms of value normalization, are very well explained by habit-like action repetition.
Reposted by Ben Jonathan Wagner
My paper is out!
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
A habit and working memory model as an alternative account of human reward-based learning
Nature Human Behaviour - In this study, Collins proposes an alternative dual-process (working memory and habit) model of reinforcement learning in humans.
rdcu.be
November 17, 2025 at 5:18 PM
My paper is out!
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
Reposted by Ben Jonathan Wagner
A new preprint 📝 with @tobiasuhauser.bsky.social @kenzakdr.bsky.social @benjwagner.bsky.social
and Andrew Webb accompanying our cpm-toolbox.net python modelling library - including details about our motivations, toolbox features, framework and workflows!
👉 osf.io/preprints/ps...
and Andrew Webb accompanying our cpm-toolbox.net python modelling library - including details about our motivations, toolbox features, framework and workflows!
👉 osf.io/preprints/ps...
September 16, 2025 at 12:37 PM
A new preprint 📝 with @tobiasuhauser.bsky.social @kenzakdr.bsky.social @benjwagner.bsky.social
and Andrew Webb accompanying our cpm-toolbox.net python modelling library - including details about our motivations, toolbox features, framework and workflows!
👉 osf.io/preprints/ps...
and Andrew Webb accompanying our cpm-toolbox.net python modelling library - including details about our motivations, toolbox features, framework and workflows!
👉 osf.io/preprints/ps...
Reposted by Ben Jonathan Wagner
New models (three variants of Prospect Theory), new features (more ways to manage parameters, more model components to use), and of course bug fixes. If you want to make your computational modelling reproducible and robust, check out and install the new version of *cpm*:
github.com/DevComPsy/cp...
github.com/DevComPsy/cp...
Release v0.23.18 - New Prospect Models, improved parameter management, and a few bug fixes · DevComPsy/cpm
Install
You can install the new release straight from the PyPi repository:
pip install cpm-toolbox
Added
Add input validation and error handling in all cpm.optimisation.minimise methods
Add test u...
github.com
September 3, 2025 at 8:32 AM
New models (three variants of Prospect Theory), new features (more ways to manage parameters, more model components to use), and of course bug fixes. If you want to make your computational modelling reproducible and robust, check out and install the new version of *cpm*:
github.com/DevComPsy/cp...
github.com/DevComPsy/cp...
Reposted by Ben Jonathan Wagner
Using a sequential decision making task and cognitive modelling, this study shows that human decisions are best explained by a combination of repetition bias and goal directed reward-based behavior.
@benjwagner.bsky.social
www.nature.com/articles/s44...
@benjwagner.bsky.social
www.nature.com/articles/s44...
Cognitive computational model reveals repetition bias in a sequential decision-making task - Communications Psychology
Using a sequential decision making task and cognitive modeling, we show that human decisions are best explained by a combination of repetition bias and goal directed reward-based behavior.
www.nature.com
June 16, 2025 at 6:51 AM
Using a sequential decision making task and cognitive modelling, this study shows that human decisions are best explained by a combination of repetition bias and goal directed reward-based behavior.
@benjwagner.bsky.social
www.nature.com/articles/s44...
@benjwagner.bsky.social
www.nature.com/articles/s44...
Just deactivated my X account.
November 16, 2024 at 1:39 PM
Just deactivated my X account.
In our new preprint @saschafrolich.bsky.social , @MichaelSmolka & @StefanKiebel on how "habits interact with goal-directed behavior under time pressure", we found that habitual behavior varies as a function of context and repetition 🔄 www.biorxiv.org/content/10.1...
Context-Dependent Interaction Between Goal-Directed and Habitual Control Under Time Pressure
Habits are an important aspect of human behaviour. Habits are reflexive, inflexible, and fast, in contrast to goal-directed behaviour which is reflective, flexible, and slow. Current theories assume t...
www.biorxiv.org
October 11, 2024 at 1:58 PM
In our new preprint @saschafrolich.bsky.social , @MichaelSmolka & @StefanKiebel on how "habits interact with goal-directed behavior under time pressure", we found that habitual behavior varies as a function of context and repetition 🔄 www.biorxiv.org/content/10.1...
1/4 🧠 In our latest work jneurosci.org/content/43/4...
@peterslab.bsky.social we show that chronic deep brain stimulation (DBS) of the anterior limb of the internal capsule/NAcc region impacts the reliability of intertemporal preferences in patients with treatment-resistant OCD.
@peterslab.bsky.social we show that chronic deep brain stimulation (DBS) of the anterior limb of the internal capsule/NAcc region impacts the reliability of intertemporal preferences in patients with treatment-resistant OCD.
November 6, 2023 at 3:33 PM
1/4 🧠 In our latest work jneurosci.org/content/43/4...
@peterslab.bsky.social we show that chronic deep brain stimulation (DBS) of the anterior limb of the internal capsule/NAcc region impacts the reliability of intertemporal preferences in patients with treatment-resistant OCD.
@peterslab.bsky.social we show that chronic deep brain stimulation (DBS) of the anterior limb of the internal capsule/NAcc region impacts the reliability of intertemporal preferences in patients with treatment-resistant OCD.