# Schema-based processing in auditory scene analysis CAROLINE BEY and STEPHEN MCADAMS **Opening (not a real abstract):** Schema-based processing in auditory scene analysis CAROLINE BEY and STEPHEN MCADAMS Laboratoire de Psychologie Expérimentale (CNRS), Université René Descartes, Paris, France and IRCAM-CNRS, Paris, France What is the involvement of what we know in what we perceive? In this article, the contribution of melodic schema-based processes to the perceptual organization of tone sequences is examined. Two unfamiliar six-tone melodies, one of which was interleaved with distractor tones, were presented successively to listeners who were required to decide whether the melodies were identical or different. In one condition, the comparison melody was presented after the mixed sequence: a target melody interleaved with distractor tones. In another condition, it was presented beforehand, so that the listeners had **Authors:** [[CAROLINE BEY and STEPHEN MCADAMS]]