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Depuis 1953 par Morin. Mais il s'impose dans les années 1980 avec les masses médias audiovisuelles avec la télévision. Celle-ci est restée chère car elle n'était pas démocratisée. Dans les années 1980, il y a une libéralisation des ondes hertziennes et une multiplication des chaînes. Jusqu'en 1984 il y avait 3 chaînes publics : TF1, Antenne 2 et FR3. Puis la Cinq par le groupe de Silvio Berlusconi qui avait des chaînes italiennes.Et il y a une ancienneté, comme Gabriel Tardes, qui étudie l'impact des médias, notamment la presse papier sur la foule.

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