Huesmann, L. R. (1986). Psychological processes promoting the relation between exposure to media violence and aggressive behavior by the viewer. Journal of Social Issues, 42 (3), 125-139.

Abstract:  Presents a developmental theory to account for the relation between increased exposure to media violence and increased aggressive behavior. It is argued that the effect of media violence on individual differences in aggression is primarily the result of a cumulative learning process during childhood. It is contended that, if undampened, this process can build enduring schemas for aggressive behavior that persist into adulthood. (PsycINFO Database Record (c) 2004 APA, all rights reserved)