Categorization and timbre perception of environmental sounds in schizophrenia

Micoulaud-Franchi Jean-Arthur (1) , Mitsuko Aramaki (1) , Adrien Merer (2) , Cermolacce Michel (1) , Sølvi Ystad (2) , Richard Kronland-Martinet (2) , Jean Vion-Dury (1)

1 INCM - Institut de neurosciences cognitives de la méditerranée - UMR 6193
2 LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]

Perception of environmental sounds from impacted materials (Wood, Metal and Glass) was examined by conducting a categorization experiment. Stimuli consisted of sound continua evoking progressive transitions between material categories. Results revealed that patients with schizophrenia perceived category transitions in a more continuous way than control, partly due to an undercategorization of Metal.

Mots clés: Sound spectrography; Auditory perception; Classification; Sound spectrography.

Domaines: Son [cs.SD]; Psychiatrie et santé mentale

Micoulaud-Franchi Jean-Arthur, Mitsuko Aramaki, Adrien Merer, Cermolacce Michel, Sølvi Ystad, et al.. Categorization and timbre perception of environmental sounds in schizophrenia. Psychiatry Research, 2011, 189 (1), pp.149-152. ⟨10.1016/j.psychres.2011.03.001⟩. ⟨hal-00541785⟩