Leonard Berkowitz
revises the Frustration-Agression Thoery (1 ene 1978 año – 1 ene 1989 año)
Descripción:
the original definition of this theory was that frustration always precedes aggression, and that frustration always leads to aggression. The revisitation is that frustration leads to a type of aggression only when the person is upset by something, not merely frustrated, but frustration is a necessary component to aggression.
https://en.wikipedia.org/wiki/Frustration%E2%80%93aggression_hypothesis
Añadido al timeline:
fecha:
1 ene 1978 año
1 ene 1989 año
~ 11 years