Single-trial decoding of auditory novelty responses facilitates the detection of residual consciousness

Effect of Auditory Stimulation by Recitation of Prayers (Azan) on Consciousness Level of Comatose Patients: a Clinical Trial

Background and Objectives: Traumatic brain injury and resulted coma are major causes of death and disability. Coma stimulation techniques are recently proposed to improve coma status. The aim of this study was to assess the effect of hearing Azan on level of consciousness among patients. Materials and Methods: In this clinical trial, 33 patients with coma were randomly divided into two interven...

Effect of Auditory Stimulation with Occupational Noise on the Consciousness Level of Comatose Patients with Traumatic Brain Injury: A Clinical Trial Study

Vowel decoding from single‐trial speech‐evoked electrophysiological responses: A feature‐based machine learning approach

INTRODUCTION Scalp-recorded electrophysiological responses to complex, periodic auditory signals reflect phase-locked activity from neural ensembles within the auditory system. These responses, referred to as frequency-following responses (FFRs), have been widely utilized to index typical and atypical representation of speech signals in the auditory system. One of the major limitations in FFR i...

Scientific Commentaries

This scientific commentary refers to ‘Neural detection of complex sound sequences in the absence of consciousness’, by Tzovara et al. (doi:10.1093/ brain/awv041). Event related potentials (ERPs), classically measured by EEG, are the electrophysiological brain responses to a stimulus. Somatosensory and auditory ERPs have been used as a noninvasive tool for assessing brain functions and predictin...

Neural detection of complex sound sequences in the absence of consciousness.

The neural response to a violation of sequences of identical sounds is a typical example of the brain's sensitivity to auditory regularities. Previous literature interprets this effect as a pre-attentive and unconscious processing of sensory stimuli. By contrast, a violation to auditory global regularities, i.e. based on repeating groups of sounds, is typically detectable when subjects can cons...