Using different methods for calculating frontal alpha asymmetry to study its development from infancy to 3 years of age in a large longitudinal sample

2021 ◽  
Author(s):  
Katherine M. Vincent ◽  
Wanze Xie ◽  
Charles A. Nelson
Keyword(s):  
Longitudinal Sample ◽  
Alpha Asymmetry ◽  
Frontal Alpha Asymmetry

scholarly journals Comparison of frontal alpha asymmetry among schizophrenia patients, major depressive disorder patients, and healthy controls

2020 ◽  
Author(s):  
Kuk-In Jang ◽  
Chany Lee ◽  
Sangmin Lee ◽  
Seung Huh ◽  
Jeong-Ho Chae
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Left Hemisphere ◽  
Rating Scales ◽  
Healthy Controls ◽  
Major Depressive ◽  
Alpha Asymmetry ◽  
Alpha Frequency ◽  
Frontal Alpha Asymmetry ◽  
The Difference

Abstract Background: Electroencephalography (EEG) frontal alpha asymmetry (FAA) has been observed in several psychiatric disorders. Dominance in left or right frontal alpha activity remains inconsistent in patients with major depressive disorder (MDD), patients with schizophrenia, and healthy controls. This study compared FAA among patients with MDD and schizophrenia, and healthy controls.Methods: We recruited 20 patients with MDD, 18 patients with schizophrenia, and 16 healthy individuals. The EEG alpha frequency ranged from 8 Hz to 12 Hz. FAA was expressed as the difference between absolute power values of right and left hemisphere electrodes in the alpha frequency range (common-log-transformed frontal right- and left-hemisphere electrodes: F4–F3, F8–F7, FP2–FP1, AF4–AF3, F6–F5, and F2–F1). Hamilton depression and anxiety rating scales were evaluated in patients with MDD. Positive and negative syndrome scales were evaluated in patients with schizophrenia.Results: Patients with schizophrenia showed significantly lower left FAA than healthy controls (F4–F3, schizophrenia vs. healthy controls: -0.10 ± 0.04 vs. -0.05 ± 0.05). There were no significant differences in FAA between patients with schizophrenia and MDD as well as between patients with MDD and healthy controls.Conclusions: The present study suggests that FAA indicates a relatively lower activation of left frontal electrodes in schizophrenia. The left-lateralized FAA could be a neuropathological attribute in patients with schizophrenia, but a lack of sample size and information such as medication and duration of illness might obscure the interpretation and generalization of our findings. Thus, further studies to verify the findings would be warranted.

scholarly journals Three times NO: no relationship between frontal alpha asymmetry and depressive disorders in a multiverse analysis of three studies

2020 ◽  
Author(s):  
Aleksandra Kołodziej ◽  
Mikołaj Magnuski ◽  
Anastasia Ruban ◽  
Aneta Brzezicka
Keyword(s):  
Data Analysis ◽  
Analytical Approach ◽  
Depressive Disorders ◽  
Alpha Power ◽  
Alpha Oscillations ◽  
Alpha Asymmetry ◽  
Eeg Data ◽  
Theoretical Assumptions ◽  
Frontal Alpha Asymmetry ◽  
Eeg Alpha

AbstractFor decades, the frontal alpha asymmetry (FAA) - a disproportion in EEG alpha oscillations power between right and left frontal channels - has been one of the most popular measures of depressive disorders (DD) in electrophysiology studies. Patients with DD often manifest a left-sided FAA: relatively higher alpha power in the left versus right frontal lobe. Recently, however, multiple studies failed to confirm this effect, questioning its reproducibility. Our purpose is to thoroughly test the validity of FAA in depression by conducting a multiverse analysis - running many related analyses and testing the sensitivity of the effect to changes in the analytical approach - on data from three independent studies. Only two of the 81 analyses revealed significant results. We conclude the paper by discussing theoretical assumptions underlying the FAA and suggest a list of guidelines for improving and expanding the EEG data analysis in future FAA studies.

Emotion Regulation Choice in Internet Addiction: Less Reappraisal, Lower Frontal Alpha Asymmetry

2021 ◽  
pp. 155005942110564
Author(s):  
Xinyu Yan ◽  
Wei Gao ◽  
Jiemin Yang ◽  
Jiajin Yuan
Keyword(s):  
Emotion Regulation ◽  
Internet Addiction ◽  
Emotional Intensity ◽  
Alpha Asymmetry ◽  
Difficulties In Emotion Regulation ◽  
Frontal Alpha Asymmetry ◽  
Healthy Control ◽  
Emotion Regulation Strategy ◽  
Regulation Strategies ◽  
Neural Marker

Individuals with internet addiction (IA) show difficulties in emotion regulation. However, they could effectively employ emotion regulation strategies when instructed. We speculate that this discrepancy might be caused by maladaptive emotion regulation choices. Recent studies indicated that decreased activity of the left frontal cortex could be a neural marker of reappraisal use. To address this problem, individuals with IA ( n = 17, IA group) and healthy individuals ( n = 23, healthy control [HC] group) were required to choose an emotion regulation strategy between reappraisal and distraction to regulate their emotions varying in emotional intensity and valence. We also compared the resting state frontal alpha asymmetry (FAA) of these 2 groups. The results replicated more choices of reappraisal in low- versus high-intensity emotional contexts across groups. More importantly, the IA group chose reappraisal less frequently compared with the HC group, irrespective of emotional intensity. Furthermore, we found individuals with IA have lower FAA than healthy controls, and FAA shows a positive correlation with the use of reappraisal. These findings suggest that IA alters individuals’ patterns of emotion regulation choice and impairs frontal activities, causing difficulties in emotion regulation.

Effect of physical exercise intervention on mood and frontal alpha asymmetry in internet gaming disorder

2020 ◽  
Vol 18 ◽  
pp. 100318 ◽  
Author(s):  
Ji Sun Hong ◽  
Sun Mi Kim ◽  
Kyoung Doo Kang ◽  
Doug Hyun Han ◽  
Jeong Soo Kim ◽  
...  
Keyword(s):  
Physical Exercise ◽  
Exercise Intervention ◽  
Internet Gaming Disorder ◽  
Gaming Disorder ◽  
Alpha Asymmetry ◽  
Internet Gaming ◽  
Frontal Alpha Asymmetry

Frontal alpha asymmetry during prayerful and resting states: An EEG study in Catholic sisters

2020 ◽  
Vol 155 ◽  
pp. 9-15 ◽  
Author(s):  
Jeanne Barcelona ◽  
Mariane Fahlman ◽  
Yulia Churakova ◽  
Robin Canjels ◽  
James Mallare ◽  
...  
Keyword(s):  
Alpha Asymmetry ◽  
Catholic Sisters ◽  
Frontal Alpha Asymmetry

scholarly journals Intergenerational Transmission of Frontal Alpha Asymmetry Among Mother–Infant Dyads

2020 ◽  
Vol 5 (4) ◽  
pp. 420-428 ◽  
Author(s):  
Kaylin E. Hill ◽  
Wei Siong Neo ◽  
Alexis Hernandez ◽  
Lisa R. Hamrick ◽  
Bridgette L. Kelleher ◽  
...  
Keyword(s):  
Intergenerational Transmission ◽  
Alpha Asymmetry ◽  
Frontal Alpha Asymmetry
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