Effects of Daytime Sleep Inertia on the Recognition of Barely Distinguishable Sounds

Shilov, M. O.; Liaukovich, Krystsina; Martynova, Olga; Ukraintseva, Yu. V.

doi:10.1007/s11055-021-01150-x

Cited by 1 publication

(1 citation statement)

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“…This difference may occur because forced awakening from SWS is closely related to the term “sleep inertia” [ 50 , 51 ]. During the transition from SWS to wakefulness, regional activation/deactivation patterns that mediate conscious perception recover more slowly than during that from REM (for metabolic changes [ 52 ]; for changes in EEG patterns of activation [ 53 , 54 ]; for latency and amplitude changes in ERPs [ 55 , 56 , 57 ]). This delay can cause a slower recovery of conscious response to target stimuli, as evidenced by data on worse behavioral performance after awakening from SWS compared to awakening from REM [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

Event-Related Potential Study of Recovery of Consciousness during Forced Awakening from Slow-Wave Sleep and Rapid Eye Movement Sleep

Liaukovich

Sazhin

Bobrov

et al. 2022

IJMS

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This work aimed to study the recovery of consciousness during forced awakening from slow-wave sleep (SWS) and rapid eye movement sleep (REM) in healthy volunteers. To track the changes in the degree of awareness of the stimuli during the transition to wakefulness, event-related potentials (ERPs) and motor responses (MR) in the auditory local-global paradigm were analyzed. The results show that during awakening from both SWS and REM, first, alpha-activity restores in the EEG, and only 20 and 25 s (for REM and SWS awakenings, respectively) after alpha onset MR to target stimuli recovers. During REM awakening, alpha-rhythm, MR, and conscious awareness of stimuli recover faster than during SWS awakening. Moreover, pre-attentive processing of local irregularities emerges earlier, even before alpha-rhythm onset, while during SWS awakening, the local effect we registered only after alpha restoration. The P300-like response both on global and local irregularities was found only when accurate MR was restored. Thus, the appearance in EEG predominating alpha-activity is insufficient either for conscious awareness of external stimuli or for generating MR to them. This work may help to understand the pathophysiology of sleep disorders well as conditions characterized by the dissociation between behavior and various aspects of consciousness.

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