Discriminating EEG spectral power related to mental imagery of closing and opening of hand

2019 ◽  
Author(s):  
J Tidare ◽  
M Leon ◽  
N Xiong ◽  
E Astrand
Keyword(s):  
Mental Imagery ◽  
Spectral Power ◽  
Eeg Spectral Power

scholarly journals An Analysis of the External Validity of EEG Spectral Power in an Uncontrolled Outdoor Environment during Default and Complex Neurocognitive States

2021 ◽  
Vol 11 (3) ◽  
pp. 330
Author(s):  
Dalton J. Edwards ◽  
Logan T. Trujillo
Keyword(s):  
External Validity ◽  
Spectral Power ◽  
Brain Activity ◽  
Outdoor Environment ◽  
Oscillatory Activity ◽  
Brain State ◽  
Beta Band ◽  
Eeg Spectral Power ◽  
Eeg Power ◽  
Human Participants

Traditionally, quantitative electroencephalography (QEEG) studies collect data within controlled laboratory environments that limit the external validity of scientific conclusions. To probe these validity limits, we used a mobile EEG system to record electrophysiological signals from human participants while they were located within a controlled laboratory environment and an uncontrolled outdoor environment exhibiting several moderate background influences. Participants performed two tasks during these recordings, one engaging brain activity related to several complex cognitive functions (number sense, attention, memory, executive function) and the other engaging two default brain states. We computed EEG spectral power over three frequency bands (theta: 4–7 Hz, alpha: 8–13 Hz, low beta: 14–20 Hz) where EEG oscillatory activity is known to correlate with the neurocognitive states engaged by these tasks. Null hypothesis significance testing yielded significant EEG power effects typical of the neurocognitive states engaged by each task, but only a beta-band power difference between the two background recording environments during the default brain state. Bayesian analysis showed that the remaining environment null effects were unlikely to reflect measurement insensitivities. This overall pattern of results supports the external validity of laboratory EEG power findings for complex and default neurocognitive states engaged within moderately uncontrolled environments.

The effect of Perampanel on EEG spectral power and connectivity in patients with focal epilepsy

2021 ◽  
Author(s):  
Jacopo Lanzone ◽  
Lorenzo Ricci ◽  
Mario Tombini ◽  
Marilisa Boscarino ◽  
Oriano Mecarelli ◽  
...  
Keyword(s):  
Spectral Power ◽  
Focal Epilepsy ◽  
Eeg Spectral Power

scholarly journals 0710 Sleep EEG Spectral Power Characteristics According to Age and Gender in Middle-to-Late Adulthood

SLEEP ◽  
2018 ◽  
Vol 41 (suppl_1) ◽  
pp. A264-A264
Author(s):  
J Yoon ◽  
E Lee ◽  
S Lee ◽  
K Jung ◽  
S Park ◽  
...  
Keyword(s):  
Spectral Power ◽  
Sleep Eeg ◽  
Age And Gender ◽  
Late Adulthood ◽  
Power Characteristics ◽  
Eeg Spectral Power ◽  
And Gender
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