Ralf Kurvers

@ralfkurvers.bsky.social

Collective decision making in human and non-human animals. Senior Researcher @arc-mpib.bsky.social | PI SCIoI | Guest researcher @leibnizigb.bsky.social |
Website: ralfkurvers.com/ | www.mpib-berlin.mpg.de/person/93403/2549

@officialberger.bsky.socialReposted by @ralfkurvers.bsky.social

New paper out in @pnas.org 🚨

Human learning is an understudied but promising lever for boosting human–AI synergy

@jasonburton.bsky.social @ralfkurvers.bsky.social @stefanherzog.bsky.social @dirkwulff.bsky.social

@ralfkurvers.bsky.social

These results reveal how social influence shapes search, stopping, and choice, and how individual-level decision rules scale up to the collective level in experienced based decision making.

@ralfkurvers.bsky.social

People copied the final choices of their peers using strong conformity, but only when they encountered ambiguous personal information. Using agent-based simulations, showed that these strategies gave rise to mild information cascades.

@ralfkurvers.bsky.social

People in groups were more likely to stop search when the social information confirmed their own personal information and when peers agreed among each other. People in groups also took fewer samples, thus encountering fewer rare events.

@ralfkurvers.bsky.social

We modeled the role of social influence in all three stages of decision making: sampling, stopping and final choice. Social information did not influence sampling behavior but influenced stopping and final choice.

@ralfkurvers.bsky.social

Using the sampling paradigm, we conducted a lottery study in 5-person group. When one person made a final decision, it became visible in real time to all group members. We compared this to a solo baseline condition.