🚨New preprint alert🚨
Does hunger affect your decisions beyond food? We tested whether being hungry affects attention & choice across food, intertemporal and social domains.
Spoiler: the effects of hunger state on attention and choice are more limited than you might think🧵👇

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...

Curious about how context influences decision-making? 👀🧠
Make sure to check out our symposium on Wednesday 11:00-12:30 at Room N2 #TeaP2026
Featuring✨
@tiborstoe.bsky.social
@nunobusch.bsky.social
@dmding.bsky.social
@barbaraoberbauer.bsky.social

Rejection-based choices discourage people from opting out of voting - Nature Communications When people dislike their options for candidates, they tend to refrain from voting rather than voting for the candidate they like best. Here, the authors show that this tendency to opt out of lose-los...

Excited to share my first PhD paper with @ashenhav.bsky.social
@shenhavlab.bsky.social
“Rejection-based choices discourage people from opting out of voting.”
www.nature.com/articles/s41...

Is your lab doing code reviews? I'd like to hear about your experiences and practices!

In our teams, we'd like to establish internal peer-reviews of our research software. Our focus is on the correctness of our "one-off" analysis scripts underlying manuscripts. Because of that, the usual […]

I had such a great time on this episode! 🤩
I really enjoyed taking the explore-exploit trade-off beyond theory and discussing its relevance for athletes, coaches, and performance in real sport settings. 🏀🏌️‍♀️🏃‍♀️
Thanks so much for having me @danabrahamspsych.bsky.social

New episode of The Sport Psych Show! On this week's episode "Exploit or Explore: Decision Making in Sport" I speak with University of Hamburg PhD student Katja Rewitz. Katja's research focuses on human sensations and their influence on decision-making and performance behaviour

🎉 New paper in Nature Communications 🎉

rdcu.be/e24jT

Does our environment influence how likely we are to help others?

ME/CFS In der neuen Staffel MAITHINK X werden wir über ME/CFS sprechen. Dafür suchen wir Betroffene oder auch Angehörige von Betroffenen, die mit uns über ihren Alltag und Schwierigkeiten sprechen wollen. Schickt uns einfach eine DM. Dazu ein Bild von Mai Thi Nguyen-Kim, die auf den Text zeigt.

Wir zeichnen ganz bald die neue Staffel MAITHINK X für euch auf und wollen dieses Mal über das sehr wichtige Thema ME/CFS sprechen. Hier ein Aufruf, dem ihr gerne folgen könnt, wenn ihr das mögt. Oder markiert einfach Personen, von denen ihr wisst, dass sie etwas dazu zu sagen haben. Danke euch! 🙏

Inspiring talk at our research colloquium yesterday! 🧠
Using very cool games (🦀🎰🐷🃏),
@sebraem.bsky.social showed when and how individuals flexibly adapt their learning across different environments.
We enjoyed a day packed of valuable discussions and delicious food!

article cover page and abstract

New article in Cognitive Psychology with @thorstenpachur.bsky.social and Veronika Zilker: “How sampling strategies shape experience-based risky choice.”

We present a computational framework for information search and choice in decisions from experience. 1/4
doi.org/10.1016/j.co...

A "Nutri-Score", but for the lab 😁

We uploaded a preprint with our thoughts on optimal lab technology for complex questions. We hope it's as much fun to read as was writing it:

Wolff, W., Gluth, S., & Keyser, J. (2025, December 6). Considerations for setting up an S-tier behavioral and brain […]

The explore-exploit trade-off in sports and exercise: a primer on empirical and computational approaches Sports and exercise require constant on-the-fly decision-making from professional athletes and recreational exercisers alike. In the final minutes of …

Very happy to see this out now in Psychology of Sport & Exercise 🤓

If you’re interested in how the explore–exploit framework helps us study decision-making in sports and exercise, check it out!

w/ @nicoschuck.bsky.social & @wanjawolff.bsky.social

www.sciencedirect.com/science/arti...

Controllability changes pain perception by increasing the precision of expectations Nature Communications - Control over pain changes how intense it is perceived. Here, the authors show that this effect results from increased expectation precision with control, which changes...

Excited to share that the main work of my PhD has been published!

We found that having control over pain makes expectations more precise, and changes pain perception. This is accompanied by activation changes in the PAG, SMA and ACC.

You can read the full version of the paper here: rdcu.be/eQy6X

🚨 New preprint! 🚨
Very happy to share our latest work on metacognition with M. Rouault, A. McWilliams, F. Chartier, @kndiaye.bsky.social and @smfleming.bsky.social where we identify contributors to self-performance estimates across memory and perception domains 👇
osf.io/preprints/ps...

Feeling *gitty* about this fall with two exciting workshops on Version Control with Git for Scientists coming up @mpib-berlin.bsky.social and @rtg2660.bsky.social @uni-wuerzburg.de! ✨

Sounds interesting? Check out my website, where I share course materials: lennartwittkuhn.com 💫

#OpenScience #Git

Taken together, we provide novel insights into how attribute translations lead to behavior change and how behaviorally effective translations in the form of ratings differ from less effective numeric translations.

For all who use Bayesian hierarchical models, have a look at our new preprint, out now together with @linushof.bsky.social @nunobusch.bsky.social and @thorstenpachur.bsky.social

osf.io/preprints/ps...

In contrast, we found only response deliberation to increase for behaviorally less effective numeric translations (carbon emissions in kg).

Our modeling results suggest that a translation in form of an evaluative rating caused participants to make more ecological choices as a result of a shift in attribute weights in favor of the translated attribute, a decreased attentional bias on the attended option, and increased deliberation.

To fill this gap, we model the interplay of attention and evidence accumulation using the maaDDM for a pre-existing data set from an online process tracing study in which participants completed a consumer choice task w/ and w/o the translation of the items' energy and water consumption.

Attribute translations promote behavior change by translating decision-relevant information into more meaningful units and have been widely adopted by policy makers (e.g., EU energy label). However, little is known about the computational mechanisms that underlie their effects on behavior.

Excited to share joint work with Ulf Hahnel and @sgluth.bsky.social on investigating how attribute translations - a widely implemented behavior intervention - lead to more ecological consumer choices. Main results are below, but check out our preprint 👇
www.researchsquare.com/article/rs-7...

Our modeling results suggest that a translation in form of an evaluative rating caused participants to make more ecological choices as a result of a shift in attribute weights in favor of the translated attribute, a decreased attentional bias on the attended option, and increased deliberation.

To fill this gap, we model the interplay of attention and evidence accumulation using the maaDDM for a pre-existing data set from an online process tracing study in which participants completed a consumer choice task w/ and w/o the translation of the items' energy and water consumption.

Attribute translations promote behavior change by translating decision-relevant information into more meaningful units and have been widely adopted by policy makers (e.g., EU energy label). However, little is known about the computational mechanisms that underlie their effects on behavior.