Perception of urban environments: audiovisual interaction in pleasantness ratings and physiological reactions - Université Claude Bernard Lyon 1 Accéder directement au contenu
Communication Dans Un Congrès Année : 2020

Perception of urban environments: audiovisual interaction in pleasantness ratings and physiological reactions

Résumé

Road traffic noise impacts health and wellbeing. However the unpleasantness of sounds is reduced in an urban context of vegetated scenes compared to non- vegetated ones (Viollon et al., 2002). Based on this study, we aimed to investigate the mechanism of this effect. In a laboratory experiment, participants were exposed to audio recordings combined with high-resolution photographs of urban environments with and without vegetation. During this audio-visual exposure, physiological correlates of emotional reactions were measured. Specifically, spontaneous activity of the eyebrow muscle corrugator supercilii, pupil size variations and heart rate were recorded. The four-second audiovisual stimuli were a combination of either urban traffic noise or bird song and photographic images of non-vegetated or vegetated street views. Participants were asked to imagine themselves in the represented urban scenes and to assess the pleasantness of the sounds only, using a visual analogue scale. As expected, traffic noise was judged to be much less pleasant than bird song, and the pleasantness of both was significantly increased by the presence of vegetation in the visual depiction. The correspondence of the variation of different physiological measures with the observed perceptual effects will be discussed.
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Dates et versions

hal-03234209 , version 1 (25-05-2021)

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Volodymyr Bogdanov, Catherine Marquis-Favre, Marylise Cottet, Fabien Perrin, Wolfgang Ellermeier, et al.. Perception of urban environments: audiovisual interaction in pleasantness ratings and physiological reactions. Forum Acusticum, Dec 2020, Lyon, France. pp.507-507, ⟨10.48465/fa.2020.0349⟩. ⟨hal-03234209⟩
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