Kianté
@kiante.bsky.social
cognitive models of decision making @UCLA
kiantefernandez.com
kiantefernandez.com
Reposted by Kianté
📣 NEW PREPRINT ALERT! 📣
📝Preprint: www.biorxiv.org/content/10.6...
When choosing between options with multiple attributes, what does the brain actually compare - individual attributes or integrated option values?
We combined EEG + eye-tracking to find out... and found evidence for the latter 🧠
📝Preprint: www.biorxiv.org/content/10.6...
When choosing between options with multiple attributes, what does the brain actually compare - individual attributes or integrated option values?
We combined EEG + eye-tracking to find out... and found evidence for the latter 🧠
Fixation-evoked potentials reveal neural signatures of hierarchical value-integration during decision-making
Many decisions require maintaining beliefs across multiple levels of representation, from sampling and integrating information to forming action plans. To elucidate these processes and reveal the neur...
www.biorxiv.org
September 17, 2026 at 1:12 PM
📣 NEW PREPRINT ALERT! 📣
📝Preprint: www.biorxiv.org/content/10.6...
When choosing between options with multiple attributes, what does the brain actually compare - individual attributes or integrated option values?
We combined EEG + eye-tracking to find out... and found evidence for the latter 🧠
📝Preprint: www.biorxiv.org/content/10.6...
When choosing between options with multiple attributes, what does the brain actually compare - individual attributes or integrated option values?
We combined EEG + eye-tracking to find out... and found evidence for the latter 🧠
Reposted by Kianté
📣We are hiring!!
I am accepting applications for a postgraduate research associate (PGA) position. If you are interested in pursue research experience in computational psychiatry, plz apply here - yalesurvey.ca1.qualtrics.com/jfe/form/SV_...
#Computation #MentalHealth #Neuroscience #Yale #Jobs
I am accepting applications for a postgraduate research associate (PGA) position. If you are interested in pursue research experience in computational psychiatry, plz apply here - yalesurvey.ca1.qualtrics.com/jfe/form/SV_...
#Computation #MentalHealth #Neuroscience #Yale #Jobs
September 16, 2026 at 5:30 PM
📣We are hiring!!
I am accepting applications for a postgraduate research associate (PGA) position. If you are interested in pursue research experience in computational psychiatry, plz apply here - yalesurvey.ca1.qualtrics.com/jfe/form/SV_...
#Computation #MentalHealth #Neuroscience #Yale #Jobs
I am accepting applications for a postgraduate research associate (PGA) position. If you are interested in pursue research experience in computational psychiatry, plz apply here - yalesurvey.ca1.qualtrics.com/jfe/form/SV_...
#Computation #MentalHealth #Neuroscience #Yale #Jobs
Reposted by Kianté
I expect to recruit a PhD student this cycle! The Control and Decision Making Lab at WashU studies control, effort, and decision making, combining behavioral experiments with modeling and neuroimaging. If that sounds cool, check out our work: cdmlab.wustl.edu. How to apply: psych.washu.edu/apply
Control and Decision Making Lab
cdmlab.wustl.edu
September 15, 2026 at 4:24 PM
I expect to recruit a PhD student this cycle! The Control and Decision Making Lab at WashU studies control, effort, and decision making, combining behavioral experiments with modeling and neuroimaging. If that sounds cool, check out our work: cdmlab.wustl.edu. How to apply: psych.washu.edu/apply
Reposted by Kianté
We are growing the team! Currently recruiting a PhD student (Fall 2027 start, portal opens mid-Sep) and hiring a lab manager. Inquiries from postdocs, prospective PhD students, and research assistants are all welcome. Apply now!
www.heffner-lab.com/join
www.heffner-lab.com/join
People | Join the ECC Lab — Emotions, Computation, and Choice Lab
Learn more about available positions and how to join the Emotions, Computation, and Choice Lab at Stanford University.
www.heffner-lab.com
September 14, 2026 at 4:05 PM
We are growing the team! Currently recruiting a PhD student (Fall 2027 start, portal opens mid-Sep) and hiring a lab manager. Inquiries from postdocs, prospective PhD students, and research assistants are all welcome. Apply now!
www.heffner-lab.com/join
www.heffner-lab.com/join
A few years ago at MathPsych @singmann.bsky.social and I spoke about making an update. Well here it is new rtdists live on CRAN!
A new version of rtdists is now on CRAN: cran.r-project.org/package=rtdi...
Big thanks to @kiante.bsky.social who added a new distribution, the racing diffusion model, fixed a number of long-standing bugs, and increased the speed of the diffusion model.
All news: cran.r-project.org/web/packages...
Big thanks to @kiante.bsky.social who added a new distribution, the racing diffusion model, fixed a number of long-standing bugs, and increased the speed of the diffusion model.
All news: cran.r-project.org/web/packages...
rtdists: Response Time Distributions
Provides response time distributions (density/PDF, distribution function/CDF, quantile function, and random generation): (a) Ratcliff diffusion model (Ratcliff & McKoon, 2008, <<a href="https:/...
cran.r-project.org
September 9, 2026 at 10:17 PM
A few years ago at MathPsych @singmann.bsky.social and I spoke about making an update. Well here it is new rtdists live on CRAN!
Reposted by Kianté
We broke Weber's law. By manipulating the prior (ie the frequencies of small and large magnitudes), we changed how people's accuracy depended on magnitude. When large magnitudes were more frequent, subjects became more precise about them. This points to efficient coding, dynamically implemented.
@arthurpr4t.bsky.social has a new preprint with important results on a famous psychophysical law (Weber's law). It isn't, in fact, a law, because it can be broken. A more fundamental principle (efficient coding) shows when and why Weber's law holds true.
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Efficient coding makes and breaks Weber's law
Weber's law is a rare quantitative regularity in psychology, yet its origins remain debated. Here we provide causal evidence that it arises from the more fundamental principle of efficient coding. Thi...
www.biorxiv.org
August 21, 2026 at 9:44 PM
We broke Weber's law. By manipulating the prior (ie the frequencies of small and large magnitudes), we changed how people's accuracy depended on magnitude. When large magnitudes were more frequent, subjects became more precise about them. This points to efficient coding, dynamically implemented.
Reposted by Kianté
Now published in eLife: elifesciences.org/articles/103...
We find strong evidence that activity in Pre-SMA and vmPFC scales with gaze-weighted accumulated evidence, suggesting attention directly modulates value signals in canonical decision-making circuits!
🧵 on the methods + findings:
We find strong evidence that activity in Pre-SMA and vmPFC scales with gaze-weighted accumulated evidence, suggesting attention directly modulates value signals in canonical decision-making circuits!
🧵 on the methods + findings:
Overt visual attention modulates decision-related signals in the frontal cortex
Brain activity in the pre-supplementary motor area and dorsolateral prefrontal cortex represents gaze-weighted accumulated evidence signals in value-based decision-making.
elifesciences.org
August 20, 2026 at 6:49 PM
Now published in eLife: elifesciences.org/articles/103...
We find strong evidence that activity in Pre-SMA and vmPFC scales with gaze-weighted accumulated evidence, suggesting attention directly modulates value signals in canonical decision-making circuits!
🧵 on the methods + findings:
We find strong evidence that activity in Pre-SMA and vmPFC scales with gaze-weighted accumulated evidence, suggesting attention directly modulates value signals in canonical decision-making circuits!
🧵 on the methods + findings:
Reposted by Kianté
📢New paper out today in @cognitionjournal.bsky.social led by Seoyoung Lee!
Does reward spread across multiple links in memory organized in a cognitive graph?
Yes! We see graded spread through a recalled (even if incorrect) learned graph. Reward preserves proximal structure to support decisions.
Does reward spread across multiple links in memory organized in a cognitive graph?
Yes! We see graded spread through a recalled (even if incorrect) learned graph. Reward preserves proximal structure to support decisions.
Reward selectively preserves relational structure in memory
Memories tend to form networks that reflect relationships between experiences. These networks, or cognitive graphs, have been used to study how struct…
authors.elsevier.com
August 8, 2026 at 12:56 PM
📢New paper out today in @cognitionjournal.bsky.social led by Seoyoung Lee!
Does reward spread across multiple links in memory organized in a cognitive graph?
Yes! We see graded spread through a recalled (even if incorrect) learned graph. Reward preserves proximal structure to support decisions.
Does reward spread across multiple links in memory organized in a cognitive graph?
Yes! We see graded spread through a recalled (even if incorrect) learned graph. Reward preserves proximal structure to support decisions.
Reposted by Kianté
Do you have some cool summer findings on decision-making?
Tell everyone about it! The late-breaking abstract deadline for October's Society for Neuroeconomics conference is August 4th: neuroeconomics.org/abstract/
Tell everyone about it! The late-breaking abstract deadline for October's Society for Neuroeconomics conference is August 4th: neuroeconomics.org/abstract/
July 31, 2026 at 7:11 PM
Do you have some cool summer findings on decision-making?
Tell everyone about it! The late-breaking abstract deadline for October's Society for Neuroeconomics conference is August 4th: neuroeconomics.org/abstract/
Tell everyone about it! The late-breaking abstract deadline for October's Society for Neuroeconomics conference is August 4th: neuroeconomics.org/abstract/
Reposted by Kianté
New paper in iScience on the neural dynamics of decision-making during learning. We analyzed behavioral and EEG data from 510 participants on the RLWM task (developed by @annecollins.bsky.social & Michael J. Frank).
doi.org/10.1016/j.is...
doi.org/10.1016/j.is...
Redirecting
doi.org
June 26, 2026 at 8:14 AM
New paper in iScience on the neural dynamics of decision-making during learning. We analyzed behavioral and EEG data from 510 participants on the RLWM task (developed by @annecollins.bsky.social & Michael J. Frank).
doi.org/10.1016/j.is...
doi.org/10.1016/j.is...
A few days at the @jspsych.org Summer Hackathon 2026 turned into jspsych-ado: adaptive Bayesian experimental design that runs in the browser along with any jspsych experiment. It adapts each what it presents on each trial to what it has learned from a participant's earlier responses:
June 19, 2026 at 3:53 PM
A few days at the @jspsych.org Summer Hackathon 2026 turned into jspsych-ado: adaptive Bayesian experimental design that runs in the browser along with any jspsych experiment. It adapts each what it presents on each trial to what it has learned from a participant's earlier responses:
Reposted by Kianté
Move over, GLM-HMM—there’s a new hidden Markov model in town.
In our new preprint, we introduce the DDM-HMM: a model that jointly infers latent decision states from reaction times and choices.
Using 24-hour behavioral data from rats, we found that evidence accumulation changes with time of day!
In our new preprint, we introduce the DDM-HMM: a model that jointly infers latent decision states from reaction times and choices.
Using 24-hour behavioral data from rats, we found that evidence accumulation changes with time of day!
Diurnal rhythms of choice: a novel state-dependent drift diffusion model uncovers time-dependent changes in rat decision making https://www.biorxiv.org/content/10.64898/2026.05.25.727672v1
May 30, 2026 at 2:46 PM
Move over, GLM-HMM—there’s a new hidden Markov model in town.
In our new preprint, we introduce the DDM-HMM: a model that jointly infers latent decision states from reaction times and choices.
Using 24-hour behavioral data from rats, we found that evidence accumulation changes with time of day!
In our new preprint, we introduce the DDM-HMM: a model that jointly infers latent decision states from reaction times and choices.
Using 24-hour behavioral data from rats, we found that evidence accumulation changes with time of day!
Reposted by Kianté
Time's running out to sign up for the Economic Science Association world meeting July 15-17 in beautiful Marina Del Rey (Los Angeles). The day before (July 14), we're hosting a "choice process" symposium with many amazing speakers. Best part - it's free with ESA registration.
May 27, 2026 at 6:17 PM
Time's running out to sign up for the Economic Science Association world meeting July 15-17 in beautiful Marina Del Rey (Los Angeles). The day before (July 14), we're hosting a "choice process" symposium with many amazing speakers. Best part - it's free with ESA registration.
Reposted by Kianté
Proof by presence 🤖👁️🙅
Check out our new position piece on webcam eye tracking for AI bot detection! 🧵 below:
Check out our new position piece on webcam eye tracking for AI bot detection! 🧵 below:
Autonomous AI agents are now built into many browsers. A naive user can take an online survey with as little as the click of a button. For behavioral research, which depends heavily on online samples, this is a real problem. (1/7)
May 19, 2026 at 5:59 PM
Proof by presence 🤖👁️🙅
Check out our new position piece on webcam eye tracking for AI bot detection! 🧵 below:
Check out our new position piece on webcam eye tracking for AI bot detection! 🧵 below:
Reposted by Kianté
🎉New positions!🎉
Postdoc and Research technician openings in our lab @yale for computational psychiatry research. Technician position a great stepping stone to grad school. More info: rutledgelab.org/positions
Work w/big data from our smartphone apps and large clinical samples happinessquest.app
Postdoc and Research technician openings in our lab @yale for computational psychiatry research. Technician position a great stepping stone to grad school. More info: rutledgelab.org/positions
Work w/big data from our smartphone apps and large clinical samples happinessquest.app
Postdoc and Research Technician Positions — Rutledge Lab
Now hiring a postdoc and a research technician with an interest in neuroeconomics or computational psychiatry.
rutledgelab.org
May 14, 2026 at 1:37 PM
🎉New positions!🎉
Postdoc and Research technician openings in our lab @yale for computational psychiatry research. Technician position a great stepping stone to grad school. More info: rutledgelab.org/positions
Work w/big data from our smartphone apps and large clinical samples happinessquest.app
Postdoc and Research technician openings in our lab @yale for computational psychiatry research. Technician position a great stepping stone to grad school. More info: rutledgelab.org/positions
Work w/big data from our smartphone apps and large clinical samples happinessquest.app
What a weekend! Thanks to everyone who joined @krajbichlab.bsky.social and me at West Coast Neuroecon. Big appreciation for our speakers, attendees, and generous sponsors: the UCLA Brain Research Institute and the Luskin Endowment for Thought Leadership.
krajbichlab.github.io/WCNE/
krajbichlab.github.io/WCNE/
May 4, 2026 at 6:45 PM
What a weekend! Thanks to everyone who joined @krajbichlab.bsky.social and me at West Coast Neuroecon. Big appreciation for our speakers, attendees, and generous sponsors: the UCLA Brain Research Institute and the Luskin Endowment for Thought Leadership.
krajbichlab.github.io/WCNE/
krajbichlab.github.io/WCNE/
Reposted by Kianté
Follow @mathpsych.bsky.social for updates from the Journal of Mathematical Psychology!
April 29, 2026 at 6:49 PM
Follow @mathpsych.bsky.social for updates from the Journal of Mathematical Psychology!
Reposted by Kianté
🚨🚨 The Social Learning and Decisions Lab is hiring! 🚨🚨 We're looking for a postbacc project coordinator/research assistant to join our team this summer. More details about the position and how to apply here: drive.google.com/file/d/1ySeA...
Please share widely and reach out with any questions!
Please share widely and reach out with any questions!
RA_ad_2026-2027_Charpentier.pdf
drive.google.com
April 30, 2026 at 3:42 AM
🚨🚨 The Social Learning and Decisions Lab is hiring! 🚨🚨 We're looking for a postbacc project coordinator/research assistant to join our team this summer. More details about the position and how to apply here: drive.google.com/file/d/1ySeA...
Please share widely and reach out with any questions!
Please share widely and reach out with any questions!
Reposted by Kianté
The Behavioral Lab at the UCLA Anderson School of Management is looking to hire its next Lab Manager! Applications will be reviewed starting April 30th.
jobs.ucla.edu/jobs/10354?l...
jobs.ucla.edu/jobs/10354?l...
Behavioral Lab Manager in Los Angeles, California | The Regents of the University of California on behalf of their Los Angeles Campus
UCLA is hiring a Behavioral Lab Manager in Los Angeles, California. Review all of the job details and apply today!
jobs.ucla.edu
April 20, 2026 at 3:45 PM
The Behavioral Lab at the UCLA Anderson School of Management is looking to hire its next Lab Manager! Applications will be reviewed starting April 30th.
jobs.ucla.edu/jobs/10354?l...
jobs.ucla.edu/jobs/10354?l...
Reposted by Kianté
🚨New preprint and our results are rather concerning..
We find the "boiling frog" equivalent of AI use. Using large-scale RCTs, we provide *casual* evidence that AI assistance reduces persistence and hurts independent performance.
And these effects emerge after just 10–15 minutes of AI use!
1/
We find the "boiling frog" equivalent of AI use. Using large-scale RCTs, we provide *casual* evidence that AI assistance reduces persistence and hurts independent performance.
And these effects emerge after just 10–15 minutes of AI use!
1/
April 7, 2026 at 5:36 PM
🚨New preprint and our results are rather concerning..
We find the "boiling frog" equivalent of AI use. Using large-scale RCTs, we provide *casual* evidence that AI assistance reduces persistence and hurts independent performance.
And these effects emerge after just 10–15 minutes of AI use!
1/
We find the "boiling frog" equivalent of AI use. Using large-scale RCTs, we provide *casual* evidence that AI assistance reduces persistence and hurts independent performance.
And these effects emerge after just 10–15 minutes of AI use!
1/
Reposted by Kianté
🚨NEW PREPRINT (w/ Fleming Peck & Hongjing Lu)
"Spontaneous emergence of context-dependent statistical learning in humans and neural networks"
We are constantly predicting what will happen next. Yet the same cue can lead to different predictions depending on context.
How might this work...? 🧵1/8
"Spontaneous emergence of context-dependent statistical learning in humans and neural networks"
We are constantly predicting what will happen next. Yet the same cue can lead to different predictions depending on context.
How might this work...? 🧵1/8
March 24, 2026 at 7:07 PM
🚨NEW PREPRINT (w/ Fleming Peck & Hongjing Lu)
"Spontaneous emergence of context-dependent statistical learning in humans and neural networks"
We are constantly predicting what will happen next. Yet the same cue can lead to different predictions depending on context.
How might this work...? 🧵1/8
"Spontaneous emergence of context-dependent statistical learning in humans and neural networks"
We are constantly predicting what will happen next. Yet the same cue can lead to different predictions depending on context.
How might this work...? 🧵1/8
Reposted by Kianté
How do people search for information to make efficient decisions?
Our new theory, now out in Psychological Review, suggests that an efficient search rule is (at the core of) the answer. And eye-tracking data support our theory.
Check out here (it's open access): psycnet.apa.org/fulltext/202...
Our new theory, now out in Psychological Review, suggests that an efficient search rule is (at the core of) the answer. And eye-tracking data support our theory.
Check out here (it's open access): psycnet.apa.org/fulltext/202...
APA PsycNet
psycnet.apa.org
March 23, 2026 at 9:11 AM
How do people search for information to make efficient decisions?
Our new theory, now out in Psychological Review, suggests that an efficient search rule is (at the core of) the answer. And eye-tracking data support our theory.
Check out here (it's open access): psycnet.apa.org/fulltext/202...
Our new theory, now out in Psychological Review, suggests that an efficient search rule is (at the core of) the answer. And eye-tracking data support our theory.
Check out here (it's open access): psycnet.apa.org/fulltext/202...
Reposted by Kianté
8 days left to submit to the Human x AI Finance conference!
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
March 10, 2026 at 6:31 PM
8 days left to submit to the Human x AI Finance conference!
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
8 days left to submit to the Human x AI Finance conference!
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
March 10, 2026 at 6:31 PM
8 days left to submit to the Human x AI Finance conference!
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org
- 🏆 $1,000 prize for the best paper.
- ✈️ The top 4 papers will be invited for presentation at the Fink Center Conference on Financial Markets at UCLA Anderson School of Management (travel and lodging included).
🔗 humanxaifinance.org