KrajbichLab

When you collect data online, are the results from humans or AI? In a project led by Booth PhD student Grace Zhang, we estimate the prevalence of AI agents on commonly used survey platforms: osf.io/preprints/psya… 🧵

Excited to be participating in the workshop on Decision Making and Information Processing in Complex Settings in Lucca (Italy) April 27-28. There's a great lineup, with Giorgio Coricelli, Susann Fiedler, Andreas Glöckner, and Carlos Alós-Ferrer. Join us! decisionmaking.imtlucca.it

📣 New book chapter Very excited to see my chapter "The Neural Mechanisms of Strategic Decision-Making" finally out in a new book, "Neuroeconomics: Core Topics and Current Directions", edited by David Smith, Patricia Lockwood, and Dominic Fareri. link.springer.com/chapter/10.100…

We are so thrilled to welcome new colleagues @ErieBoorman, @maureenritchey, and Ajay Satpute to UCLA. What an exciting day for UCLA Psychology! #neuroeconomics

Building on past attentional drift diffusion model (aDDM) work, we find that gaze has a stronger effect on choice for more important issues. This work shows how ballot design can influence political outcomes, by drawing attention to certain options. Project led by @taroyang3302.

New paper in @CognitionJourn, where we show how attention impacts political choices. With an eye-tracking study, we find that people's voting choices aren't set in stone - they take longer to vote on divisive issues and can be swayed by gaze manipulations. authors.elsevier.com/sd/article/S00…

Belated congratulations to our former labmate @MirunaCotet for her Paper of the Year Award from the Society for Neuroeconomics. The award celebrates her work on the cognitive dynamics of bargaining, using eBay data, published in PNAS. pnas.org/doi/abs/10.107… #SNE2025

Excited to share our new lab website! Konovalov Neuroeconomics Lab konelab.org Our research covers quite a few topics and methods across neuroeconomics, decision neuroscience, and behavioral economics:

Come work with us! The Neuroscience Institute and the Department of Psychology at Princeton University are searching for a tenure-track Assistant Professor in the area of human cognitive neuroscience, to be hired jointly in Psychology and Neuroscience: puwebp.princeton.edu/AcadHire/apply…

For anyone on the west side of Los Angeles, I'll be at the Rosegold Saloon tomorrow night, presenting at their Pint of Science event. I'll be giving an overview of my lab's research, pub style. We'll be wrestling with the age-old question - ale or lager? pintofscience.us/event/from-bac…

Excited to share a new Trends in Cognitive Sciences paper that I had the pleasure to be a part of. This is an interdisciplinary perspective on the dynamics of cognitive costs, namely when these costs occur and how they impact our decisions. #neuroeconomics sciencedirect.com/science/articl…

Not all noise is the same! Excited to be a part of this fantastic new work from @BoShenNeuro using modeling and choice experiments to show differential effects of early versus late noise on decision making. nature.com/articles/s4146…

We also find that people look less at the Buy option when there are explicit outside options. Overall, we identify two different attentional mechanisms by which the framing of opportunity costs (i.e., the outside options) impacts people's willingness to make purchases. 3/n

Across surpluses, people consistently purchase less with explicit outside options. Using a variant of the attentional DDM, we estimated separate attention discounts on the Buy and Don't Buy options. We find more discounting of the Buy option with explicit vs implicit costs. 2/n

New article on the role of attention in opportunity-cost neglect, with the fabulous @stephsmithphd and Stephen Spiller. Outside options that are explicit (Keep Money) vs implicit (Don't Buy), attract more attention, both gaze and gaze effect on choice. 1/n authors.elsevier.com/c/1kycc_EbvvWvr

PhD position - UK applicants only this time 🚨 Apply by May 19 for a PhD with James Goulding, Evgeniya Lukinova (Nottingham) and myself (Birmingham) to work on consumer behavior, big data, machine learning, behavioral experiments, and eye-tracking jobs.ac.uk/job/DMT549/phd…

What was really striking was the similarity of the temporal weighting function between the perceptual and economic tasks, both in the aggregate and across subjects. We estimated these weighting functions by having subjects report averages in real time using a joystick in the MRI.

The paper was led by former student Minhee Yoo. She found that, in addition to the cuneus, the left dlPFC tracked the average evidence in favor of an option, in the economic task. People with a stronger primacy bias had higher activity in cognitive control regions (dlPFC, IPS).

🚨New paper in CABN with Brandon Turner's lab🚨 We use an averaging diffusion model and fMRI to study how the brain estimates average evidence in perceptual and economic tasks. We find recency and primacy effects that are highly consistent across tasks. link.springer.com/article/10.375…

In a one-shot prisoner’s dilemma game, manipulating the location of payout information on computer screens changed participants’ gaze pattern sequences and resulted in greater cooperation when more focus was given to others’ outcomes. @arkadykonovalov nature.com/articles/s4427…