ArticleFrontiers in neuroscience2017
The EEG Split Alpha Peak: Phenomenological Origins and Methodological Aspects of Detection and Evaluation.
Article in Frontiers in neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed.
- Distinct electroencephalography alpha-band rhythms map macroscale brain gradients.Cerebral cortex (New York, N.Y. : 1991) · 2026Article
- Alpha Frequency Dysrhythmia in Treatment-Resistant Schizophrenia: Associations with EEG Background Changes, Disorganized Symptoms, and Dissociation.Biomedicines · 2026Article
- Number of Alpha Peaks in the Electroencephalogram Is Associated With Clinical Phenotype and Copy Number Variants in Youths With Autism.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2026Article
- Chronotype in alpha-tACS: Preliminary evidence hints at sleep quality modulation of aftereffects in evening types in the morning.Neurobiology of sleep and circadian rhythms · 2025Article
- Estimating Chronological Age From the Electrical Activity of the Brain: How EEG-Age Can Be Used as a Marker of General Brain Functioning.Psychophysiology · 2025Article
- Adhesive Wearable Sensors for Electroencephalography from Hairy Scalp.Advanced healthcare materials · 2023Article
- Relaxing Effects of BreathingInternational journal of environmental research and public health · 2022Article
- Response: Commentary: Is So-Called "Split Alpha" in EEG Spectral Analysis a Result of Methodological and Interpretation Errors?Frontiers in neuroscience · 2021Article
- Commentary: Is So-Called "Split Alpha" in EEG Spectral Analysis a Result of Methodological and Interpretation Errors?Frontiers in neuroscience · 2021Article
- Is So Called "Split Alpha" in EEG Spectral Analysis a Result of Methodological and Interpretation Errors?Frontiers in neuroscience · 2020Article
- EEG Phase Synchronization in Persons With Depression Subjected to Transcranial Magnetic Stimulation.Frontiers in neuroscience · 2018Article
- Complexity Analysis of EEG Data in Persons With Depression Subjected to Transcranial Magnetic Stimulation.Frontiers in physiology · 2018Article
- Graph-based analysis of brain connectivity in schizophrenia.PloS one · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Electroencephalographic (EEG) patterns were analyzed in a group of ambulatory patients who ranged in age and sex using spectral analysis as well as Directed Transfer Function, a method used to evaluate functional brain connectivity. We tested the impact of window size and choice of reference electrode on the identification of two or more peaks with close frequencies in the spectral power distribution, so called "split alpha." Together with the connectivity analysis, examination of spatiotemporal maps showing the distribution of amplitudes of EEG patterns allowed for better explanation of the mechanisms underlying the generation of split alpha peaks. It was demonstrated that the split alpha spectrum can be generated by two or more independent and interconnected alpha wave generators located in different regions of the cerebral cortex, but not necessarily in the occipital cortex. We also demonstrated the importance of appropriate reference electrode choice during signal recording. In addition, results obtained using the original data were compared with results obtained using re-referenced data, using average reference electrode and reference electrode standardization techniques.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.