A 22-month-old child suffered accidental strangulation, which rendered him comatose with intermittent generalized tonic-clonic seizures. His elecroencephalogram (EEG) displayed widespread activity of alpha frequency unreactive to sensory stimuli. Upon clinical recovery, a slower posterior EEG rhythm, attenuated by eye opening, was detected, which was more consistent with the patient's age. This observation is remarkable, because of the rarity of reports of an alpha pattern after cerebral anoxia in young children and the subsequent EEG and clinical evolutions.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1212/wnl.30.12.1316 | DOI Listing |
Behav Brain Res
January 2025
College of Electronic & Information Engineering, Hebei University, Baoding, China.
Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder with an unclear pathogenesis to date. Neurofeedback (NFB) had shown therapeutic effects in patients with ASD. In this study,we analyzed the brain functional networks of children with ASD and investigated the impact of NFB targeting the beta rhythm training on these networks.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Sorbonne Université, Paris Brain Institute (ICM), INSERM, CNRS, UMR-1127, Mov'It, DreamTeam, Paris, France.
Background: Spectral power of slow rhythms in resting-state EEG increases along Alzheimer's disease (AD) continuum. Besides, recent studies have revealed 1) the importance of analyzing the aperiodic component of an EEG power spectrum and 2) the intrusions of sleep-like slow waves identifiable in wake EEG of animals and young adults. Importantly, the occurrence of these wake slow waves is known i) to increase after sleep deprivation, ii) to be associated with markers of sleepiness, and iii) to predict behavioral errors at different tasks.
View Article and Find Full Text PDFBackground: The amplitude of resting-state electroencephalographic (rsEEG) rhythms is a promising neurophysiological biomarker to investigate the abnormalities of oscillatory neurophysiological thalamocortical mechanisms related to the general cortical arousal and vigilance in wakefulness in patients with dementia due to neurodegenerative diseases as Alzheimer's disease (ADD), Parkinson's disease (PDD) and Lewy Body disease (DLB). Here, we tested the hypothesis that the reactivity of posterior rsEEG alpha (about 8-12 Hz) rhythms during the transition from eyes-closed to -open condition may be lower in PDD patients than in DLB patients.
Methods: A Eurasian database provided clinical-demographic-rsEEG datasets in 35 ADD patients, 65 PDD patients, 30 DLB patients, and 25 matched cognitively unimpaired (Healthy) persons.
Alzheimers Dement
December 2024
Huntington Medical Research Institutes, Pasadena, CA, USA.
Background: Stroop task is used to evaluate inhibition, a core executive function. Alpha Event-Related Desynchronization (ERD) from analysis of electroencephalogram (EEG) during Stroop task reflects brain interference processing. We previously reported different relationships between heart rate variability (HRV) and alpha ERD during Stroop task.
View Article and Find Full Text PDFJ Clin Neurophysiol
January 2025
Department of Intensive Care, Neuro-Intensive Care Unit, University Hospital of Geneva, Geneva, Switzerland.
Purpose: Recent research on quantitative EEG in coma has proposed several metrics correlating with consciousness level. However, the heterogeneous nature of coma can challenge the generalizability of these measures. This study investigates alpha-coma, an electroclinical pattern characterized by a widespread, nonreactive alpha rhythm often linked to poor outcomes.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!