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Updated: Jun 3, 2026

Investigating the Effects of Antipsychotics and Schizotypy on the N400 Using Event-Related Potentials and Semantic Categorization
Published on: November 19, 2014
Categorization and timbre perception of environmental sounds in schizophrenia
Jean-Arthur Micoulaud-Franchi1, Mitsuko Aramaki, Adrien Merer
1Pôle de Psychiatrie Solaris, Service Pr. Naudin, Centre Hospitalier Universitaire de Sainte-Marguerite, 270 Bd de Sainte-Marguerite, 13009 Marseille, France. jarthur.micoulaud@gmail.com
Abstract:
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 highlighted shallower response curves in subjects with schizophrenia than healthy participants, and are discussed in the framework of Signal Detection Theory and in terms of impaired perception of specific timbre features in schizophrenia.
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