A person wielding a gun focuses more intently on the face of an opponent with a gun, presumably to try to determine that person's likelihood of pulling the trigger, according to a new study on gun-in-hand research.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/w...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/w...