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 The 4thCongress of the International Ambiances Network aims to bring together a large community of academics, practitioners, artists and students working on, with or through ambiances. The mobilization of this tryptic underlines the diversity of the forms of mobilization of the notion of atmosphere, which questions the sensitive world in terms of: research subject, category of analysis, and dispositif for action. The topic of ambiances and atmospheres has carried out its deployment for more than four decades, and the questions associated with it are constantly being renewed. The vitality of ambiance/atmosphere as an object of study and as a field of research and practice is particularly sensitive through the continuous development of the International AmbiancesNetwork, with more than a thousand members spread over all continents, and belonging to disciplines ranging from Architecture and Urban Design, to Social Sciences, Engineering Sciences, Arts and Humanities(seehttps://www.ambiances.net).After the Congresses of Grenoble (Creating an Atmosphere, 2008), Montreal (Ambiances in Action, 2012) and Volos (Ambiances, Tomorrow: The Future of Ambiances, 2016), this 4thCongressentitled "Ambiances, Alloaesthesia: Senses, Inventions, Worlds"focuses on the renewal of the forms of feeling in a world that is undergoing major changes. Composed by “allo” which stands for “other, of another kind”, using the term alloaesthesiaaim to characterize: other senses, or senses of another kind, and suggests to be comprehensive of the emergence of potential new kinds of senses and sensibilities†. This Congress aims to consider how the contemporary environmental, social, technological, political and ethical changes are likely to affect the sensitive worlds, their ambiances, and the ways of experiencing them. How do the aforementioned changes question the research on ambiances and atmospheres, at epistemological, theoretical, methodological and practical levels? These questions are divided into the following three thematic areas:  1/ New sensitizations.  2/ Human and non-human sensitivities. 3/ Artificial and extended sensibility. Accédez à l'annonce : 4th International Congress on Ambiances