Holding partners accountable: Partner control as a mechanism for stabilising reciprocal cooperation in Norway rats (Rattus norvegicus)

Description

Cooperative individuals risk exploitation by defectors, yet individuals can attempt to modify their partners’ behaviour through partner control. While well-documented in humans, evidence in non-human animals is limited. We tested whether Norway rats adjust their behaviour in response to previous (un)cooperative actions by a partner and its effect on future cooperation. Focal rats experienced cooperative or uncooperative partners in a food-sharing task, then either interacted with them (together) or not (separated) before partners had the opportunity to again provide food. When given the chance to interact, rats controlled their partner’s behaviour; focal rats showed more positive behaviours towards cooperators and more negative behaviours towards defectors. Partner control was effective as partners provided more food and earlier when they had interacted with the focal rat compared to when being separated. By responding strategically to a partner’s behaviours, rats can shape future cooperation. Such partner control mechanisms can stabilise reciprocal interactions by reinforcing cooperators and transforming defectors into future cooperators.

Period	23 Mar 2026 → 25 Mar 2026
Event title	ASAB Easter Meeting
Event type	Conference
Location	Bristol, United KingdomShow on map