scholarly journals The Analysis Of Phase Synchrony Of Alpha Band Waves In Detecting The Effect Of Alcohol On Eeg

2012 ◽  
Vol 04 (01) ◽  
pp. 1-7
Author(s):  
Saeed Erfanian ◽  
Mohammad Reza Shokoohi Nia ◽  
Mojtaba Shokohi Nia
Keyword(s):  
Alpha Band ◽  
Phase Synchrony

scholarly journals Lesions to the Fronto-Parietal Network Impact Alpha-Band Phase Synchrony and Cognitive Control

2018 ◽  
Author(s):  
Sepideh Sadaghiani ◽  
Pascasie L Dombert ◽  
Marianne Løvstad ◽  
Ingrid Funderud ◽  
Torstein R Meling ◽  
...  
Keyword(s):  
Cognitive Control ◽  
Alpha Band ◽  
Phase Synchrony

scholarly journals Electroencephalographic Phase Synchrony Index as a Biomarker of Poststroke Motor Impairment and Recovery

2020 ◽  
Vol 34 (8) ◽  
pp. 711-722 ◽  
Author(s):  
Teiji Kawano ◽  
Noriaki Hattori ◽  
Yutaka Uno ◽  
Megumi Hatakenaka ◽  
Hajime Yagura ◽  
...  
Keyword(s):  
Motor Impairment ◽  
Lesion Volume ◽  
Healthy Controls ◽  
Alpha Band ◽  
Phase Synchrony ◽  
Resonance Imaging ◽  
Theta Band ◽  
Clinical Interest ◽  
Time Of Admission ◽  
Hemispheric Infarction

Background. Motor recovery after stroke is of great clinical interest. Besides magnetic resonance imaging functional connectivity, electroencephalographic synchrony is also an available biomarker. However, the clinical relevance of electroencephalographic synchrony in hemiparesis has not been fully understood. Objective. We aimed to demonstrate the usefulness of the phase synchrony index (PSI) by showing associations between the PSI and poststroke outcome in patients with hemiparesis. Methods. This observational study included 40 participants with cortical ischemic stroke (aged 69.8 ± 13.8 years) and 22 healthy controls (aged 66.9 ± 6.5 years). Nineteen-channel electroencephalography was recorded at 36.9 ± 11.8 days poststroke. Upper extremity Fugl-Meyer scores were assessed at the time of admission/before discharge (FM-UE1/FM-UE2; 32.6 ± 12.3/121.0 ± 44.7 days poststroke). Then, correlations between the PSIs and FM-UE1 as well as impairment reduction after rehabilitation (FM-UEgain) were analyzed. Results. The interhemispheric PSI (alpha band) between the primary motor areas (M1s) was lower in patients than in controls and was selectively correlated with FM-UE1 ( P = .001). In contrast, the PSI (theta band) centered on the contralesional M1 was higher in patients than in controls and was selectively correlated with FM-UEgain ( P = .003). These correlations remained significant after adjusting for confounding factors (age, time poststroke, National Institute of Health Stroke Scale, and lesion volume). Furthermore, the latter correlation was significant in severely impaired patients (FM-UE1 ≤ 10). Conclusions. This study showed that the PSIs were selectively correlated with motor impairment and recovery. Therefore, the PSIs may be potential biomarkers in persons with a hemispheric infarction.

scholarly journals Alpha-Band Phase Synchrony Is Related to Activity in the Fronto-Parietal Adaptive Control Network

2012 ◽  
Vol 32 (41) ◽  
pp. 14305-14310 ◽  
Author(s):  
S. Sadaghiani ◽  
R. Scheeringa ◽  
K. Lehongre ◽  
B. Morillon ◽  
A.-L. Giraud ◽  
...  
Keyword(s):  
Adaptive Control ◽  
Control Network ◽  
Alpha Band ◽  
Phase Synchrony

Increased long-range alpha-band phase synchrony during short-term memory retention in children

NeuroImage ◽  
2009 ◽  
Vol 47 ◽  
pp. S144
Author(s):  
U Ribary ◽  
S Doesburg ◽  
A Herdman ◽  
T Cheung ◽  
A Moiseev ◽  
...  
Keyword(s):  
Long Range ◽  
Short Term Memory ◽  
Memory Retention ◽  
Alpha Band ◽  
Phase Synchrony ◽  
Short Term ◽  
Term Memory

Alpha Band Activity and CNV Reflect the Evaluation of Target Probability

2007 ◽  
Author(s):  
Waltraud Stadler ◽  
Karim N'Diaye ◽  
Richard Ragot ◽  
Wolfgang Klimesch ◽  
Catherine Tallon-Baudry ◽  
...  
Keyword(s):  
Alpha Band ◽  
Target Probability ◽  
Band Activity

QUANTITATIVE CRITERIA FOR VALIDATION OF ELECTROENCEPHALOGRAM NEUROFEEDBACK TRAINING PROTOCOL: A PILOT STUDY ON NEUROPATHIC PAIN

2019 ◽  
Vol XVI (4) ◽  
pp. 67-79
Author(s):  
Muhammad Abul Hasan ◽  
Matthew Fraser ◽  
Saad Ahmed Qazi
Keyword(s):  
Neuropathic Pain ◽  
Pilot Study ◽  
Learning Ability ◽  
Alpha Band ◽  
Neurofeedback Training ◽  
Off Time ◽  
Training Protocol

Neurofeedback (NF) training has been used for the treatment of neuropathic pain. This paper presents the results of assessment of the learning ability of five patients having neuropathic pain. The following two types of baselines were adopted: Baseline 1 refers to power on Day 1 in PreNF state; and Baseline 2 refers to power recorded on each training day in PreNF state. The result of the study demonstrated that not only the baseline its selection is also important to demonstrate the validity of training protocol. It was also found that Baseline 2 can be used to define cut-off time for training (when training should be stopped). All five patients can be classified as learner and alpha band was found to be most relevant for NF training.

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