Information-Theoretic Approaches in EEG Correlates of Auditory Perceptual Awareness under Informational Masking


  • Veyrié Alexandre
  • Noreña Arnaud
  • Sarrazin Jean-Christophe
  • Pezard Laurent


  • Hearing
  • Perception
  • Awareness
  • Neural correlates
  • Electroencephalogram

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In informational masking paradigms, the successful segregation between the target and masker creates auditory perceptual awareness. The dynamics of the build-up of auditory perception is based on a set of interactions between bottom–up and top–down processes that generate neuronal modifications within the brain network activity. These neural changes are studied here using event-related potentials (ERPs), entropy, and integrated information, leading to several measures applied to electroencephalogram signals. The main findings show that the auditory perceptual awareness stimulated functional activation in the fronto-temporo-parietal brain network through (i) negative temporal and positive centro-parietal ERP components; (ii) an enhanced processing of multi-information in the temporal cortex; and (iii) an increase in informational content in the fronto-central cortex. These different results provide information-based experimental evidence about the functional activation of the fronto-temporo-parietal brain network during auditory perceptual awareness.

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