Milinski, Manfred http://orcid.org/0000-0003-4236-8105
Marotzke, Jochem http://orcid.org/0000-0001-9857-9900
Article History
Received: 26 January 2022
Accepted: 8 November 2022
First Online: 10 December 2022
Competing interests
: The authors declare no competing interests.
: All experimental procedures follow German regulations. For behavioural experiments like ours, neither approval from an ethics committee nor written consent to participate is required according to German regulations. We certify that the study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: We have received the subjects’ written informed consent to participate. They agreed with publication of the results in an anonymous form; full anonymity and true information was guaranteed, and subjects had the option to stop participating at any time.