Now out in Nature Comms 🎊 Collective incentives reduce over-exploitation of social information in unconstrained human groups [link: rdcu.be/dCC3Z] 🧵below - ThreadSky

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dominikdeffner.bsky.social • 338 days ago

Now out in Nature Comms 🎊

Collective incentives reduce over-exploitation of social information in unconstrained human groups [link: https://rdcu.be/dCC3Z]

🧵below

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dominikdeffner.bsky.social•338 days ago

Using an immersive-reality approach, we study how groups of four participants search for resources ("coins”) in a 3D virtual environment with different resource distributions and incentive structures.

dominikdeffner.bsky.social•338 days ago

Behavioral analyses revealed individual-level benefits (but group-level losses!) of high social information use and spatial proximity. Crucially, group incentives alleviated the negative consequences of excessive scrounging and improved performance

dominikdeffner.bsky.social•338 days ago

We then developed a computational Social Hidden Markov Decision model (inspired by animal movement models) to infer decisions between latent states and describe how different factors influence participants’ decisions to use social information.

dominikdeffner.bsky.social•338 days ago

Finally, mapping group-level spatio-temporal dynamics revealed a collective explore-exploit trade-off across different timescales.

dominikdeffner.bsky.social•338 days ago

Group-level incentives reduced participants’ overall responsiveness to social information and promoted higher selectivity over time.

dominikdeffner.bsky.social•338 days ago

Code here: https://github.com/DominikDeffner/VirtualCollectiveForaging

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