With the increasing interest in movement sonification and expressive gesture-based interaction, it is important to understand which factors contribute to movement learning and how. We explore the effects of movement sonification and users’ musical background on motor variability in complex gesture learning. We contribute an empirical study in which musicians and non-musicians learn two gesture sequences over three days, with and without movement sonification. Results show the interlaced interaction effects of these factors and how they unfold in the three-day learning process. For gesture 1, which is fast and dynamic with a direct “action-sound” sonification, movement sonification induces higher variability for both musicians and non-musicians on day 1. While musicians reduce this variability to a similar level as no auditory feedback condition on day 2 and day 3, non-musicians remain to have significantly higher variability. Across three days, musicians also have significantly lower variability than non-musicians. For gesture 2, which is slow and smooth with an “action-music” metaphor, there are virtually no effects. Based on these findings, we recommend future studies to take into account participants’ musical background, consider longitudinal study to examine these effects on complex gestures, and use awareness when interpreting the results given a specific design of gesture and sound.

Ao professor Laurent Feneyrou pela generosa ajuda e por tornar possível esse trabalho Ao professor e orientador Fernando Iazzetta pela gentil acolhida na USP e pela paciência e pela série de discussões que me fizeram amadurecer as idéias que deram origem a este trabalho A Martine Cadieu por momentos que jamais serão esquecidos Ao professor Mário Vieira de Carvalho Ao professor Silvio Ferraz pelo valioso diálogo e pelas discussões durante a disciplina "Análise Hoje" ministrada na USP, que foram fundamentais para o desenvolvimento deste trabalho Ao Professor Rogério Costa pelas sugestões na banca de qualificação A Patrícia de Carli pelo amável auxílio na elaboração dos exemplos musicais Ao amigo Thomas Rohrer pela ajuda nas traduções do alemão, e aos meus

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Obra para: Dossiê Músicas feitas por mulheres para ressoar em todos os corpos – Org: BONAFÉ, Valéria.