N400-like responses to three-chord harmonic sequences with unexpected out-of-key endings: scalp topography, cortical sources, and perspectives for a clinical use

摘要

A series of ERP components, each provided with both a precise timing with respect to stimulation and a specific cortical localization, reflects the temporal succession of processing stages of music information. This makes the musical stimulus potentially usable to probe residual brain functions in non-communicating patients with disorders of consciousness.