Placing meta-stable states of consciousness within the predictive coding hierarchy: The deceleration of the accelerated prediction error.
Hojjatoleslami, Seyed Ali
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Shirazibeheshti, A., Cooke, J., Chennu, S., Adapa, R., Menon, D., Hojjatoleslami, S. A., Witon, A., et al. (2018). Placing meta-stable states of consciousness within the predictive coding hierarchy: The deceleration of the accelerated prediction error.. Conscious Cogn, 63 123-142. https://doi.org/10.1016/j.concog.2018.06.010
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.
Brain, Humans, Propofol, Hypnotics and Sedatives, Electroencephalography, Acoustic Stimulation, Conscious Sedation, Consciousness, Psychological Theory, Psychomotor Performance, Evoked Potentials, Auditory
Wellcome Trust (via MRC Cognition and Brain Sciences Unit (CBU)) (093811/Z/10/Z)
External DOI: https://doi.org/10.1016/j.concog.2018.06.010
This record's URL: https://www.repository.cam.ac.uk/handle/1810/283441