Table S2.

IAT stimuli

Positive	Negative	Ingroup (soccer)	Outgroup (soccer)	Ingroup (politics)	Outgroup (politics)
Freude (joy)	Flucht (escape)	FCB [initials]	FCZ [initials]	Politisch links (left-wing)	Politisch rechts (right-wing)
Herz (heart)	Gift (poison)	St. Jakob–Park [stadium]	Letzigrund [stadium]	Ueli Leuenberger [politician]	Christoph Blocher [politician]
Liebe (love)	Hunger (hunger)	Thorsten Fink [coach]	Urs Fischer [coach]	Umweltpolitik (environmental policies)	Zuwanderungbegrenzung (restricting immigration)
Mutter (mother)	Hass (hate)	Franco Costanzo [team captain]	Silvan Aegerter [team captain]	Alternative Energien (alternative energies)	Bewaffnete Neutralität (armed neutrality)
Sinn (meaning)	Panik (panic)
Sonne (sun)	Streit (conflict)
Wärme (warmth)	Tod (death)
Spaβ (fun)	Zwang (compulsion)
Glück (happiness)	Krieg (war)

Please note that we individually adapted ingroup/outgroup words according to a participant’s preferred soccer club and political party, respectively. Shown here are examples for a FC Basel soccer fan (outgroup: FC Zuerich) and for a left-wing green party supporter (outgroup: right-wing Swiss People’s Party). Words in parentheses are English translations, words in brackets describe the word category.