Placing meta-stable states of consciousness within the predictive coding hierarchy: The deceleration of the accelerated prediction error

Research output: Contribution to journalArticlepeer-review


  • Amirali Shirazibeheshti
  • Jennifer Cooke
  • Srivas Chennu
  • Ram Adapa
  • David K. Menon
  • Seyed Ali Hojjatoleslami
  • Adrien Witon
  • Ling Li
  • Tristan Bekinschtein

Colleges, School and Institutes

External organisations

  • University of Kent
  • University of Cambridge


While many studies have linked prediction errors and event related potentials at a single processing level, few consider how these responses interact across levels. In response, we present a factorial analysis of a multi-level oddball task - the local-global task - and we explore it when participants are sedated versus recovered. We found that the local and global levels in fact interact. This is of considerable current interest, since it has recently been argued that the MEEG response evoked by the global effect corresponds to a distinct processing mode that moves beyond predictive coding. This interaction suggests that the two processing modes are not distinct. Additionally, we observed that sedation modulates this interaction, suggesting that conscious awareness may not be completely restricted to a single (global) processing level.


Original languageEnglish
Pages (from-to)123-142
Number of pages20
JournalConsciousness and Cognition
Early online date10 Jul 2018
Publication statusPublished - 1 Aug 2018


  • Levels of consciousness, local-global task, mismatch negativity, cluster-based analysis, EEG, sedation