We systematically manipulated social proximity to examine its influence on
multiple topographies of aggression. Aggression occurred at high levels dur
ing close-proximity sessions and at low levels during distant-proximity ses
sions even though social contact was presented continuously during both con
ditions. Topographies of aggression emerged sequentially across the close-p
roximity sessions, and all topographies were reduced to zero following exte
nded sessions of this condition.