Original sentence: Before the selective exposure theory was put forward, Festinger(1957) published a book, Theory of Cognitive Dissonance, and explained the cognitive dissonance theory, which assumes that all human beings pursue consistency in their mind.In other words, people manage their mood by selecting certain kind of entertainment to exposure themselves; mood management theory was also rooted by this affective-dependent theory.It has been discussed by communication scholars for decades.Mood management theory.Selective exposure theory is a theory of communications, positing that individuals prefer exposure to arguments supporting their position over those supporting other positions.Since excessive amount of media choices are available in the 21st Century, media consumers have more privileges to expose themselves to selected medium and media contents.When prejudiced people confront anti-prejudice propaganda involuntarily, even though they might avoid the message from the first time, the process of evasion would occur in their mind
Edited sentence: Before the selective exposure theory was blossomed,  Festinger(1957) published a book, Theory of Cognitive Dissonance, and explained the cognitive dissonance theory, which assumes that all human beings pursue consistency in their mind.In other words, people manage their mood by selecting certain kind of entertainment to exposure themselves; Mood Management theory was also rooted by this affective-dependent theory.Mood Management.Selective exposure theory has been discussed by communication scholars for decades.Since excessive amount of media choices are available in 21st Century, media consumers have more privileges to expose themselves to selected medium and media contents.The Evasion of Propaganda.Understanding selective exposure process of mass media users is more necessary than before.When the prejudiced people confront the anti-prejudice propaganda involuntarily, even though they might avoid the message from the first time, the process of evasion would occur in their mind.Woothang 04:49, 2 May 2007 (UTC)wootahng