• collective mobilisations
• communication
• involvement

The corpus of audiovisual archives Médias et mobilisations en Corse de 1945 à nos jours (https://sites.ina.fr/mobilisations-en-corse) constitutes for this research a diachronic thread of key moments articulated around the main collective mobilisations in contemporary Corsica and being the object of illuminations carried out for each of the documents.
The aim is to find out to what extent the processes at work within collective mobilisations allow us to conceive forms of involvement as a fully-fledged communicational object. Furthermore, we attempt to provide a theoretical and methodological model through the prism of the link between interactional microstructure and social macrostructure by favouring an anthropological approach to communication.
Collective mobilisation is a rite of passage. From a situation perceived by the individual as uncertain to the questioning of his or her interpretation frameworks, the experience of public problems is articulated on the island by the total social fact of the device of the close. A set of steps governs the process of formulating a problematic situation, among which is the performance within a collective micro-mobilisation, inherent to a strategy of visibility and recognition. Traditionally, a leader appears: he or she must master both the art of governing and the art of performing. The challenge lies in the possibility of embodying a mortal Body and a political Body.
The complex relations maintained with the guardianships and the power exercised over the population mark the island through time. Gradually, rootedness and uprootedness arise as constitutive elements of an ethnoscape, favouring the involvement of Corsicans living the experience of exile and the circulation of a collective imaginary beyond the maritime borders. The development of tourism, the instability of the social and economic situation and the project of a nuclear site in the territory are characteristic of the state's propensity to use Corsica as a place of experimentation. Nevertheless, the opposition of the population appears as the beginning of the deployment of a counter-power.
Considering that the material forms of involvement are presented from the point of view of the device, the systematic occupation of the media scene by the actors of collective mobilisations from the 1970s onwards appears as new forms of involvement where, in an interrelational effect, the social and mental forms are inevitably subject to a modification.
Thus, certain demands appear as constants over the decades. They finally reveal a capacity to bring audiences together and to attempt to bring about certain changes within a society where a consequent tangle of frameworks is previously at the centre of individuals' daily interpretative systems.