The document discusses several theories related to media representations of youth and identity formation:
1. Dick Hebdige's theory from 1979 analyzed British youth subcultures and how they used style to challenge dominant ideology. Media representations of youth were limited to portrayals as troublemakers or sources of fun.
2. David Gauntlett's 2002 theory examined how media texts influence self-identity and expression. He argued people shift from passive consumers to active producers through new media like Web 2.0.
3. Tajfel and Turner's 1979 social identity theory proposed that people categorize themselves into in-groups to build identity, creating boundaries with out-groups. Youths often divide into subcultures based on