Classification of ictal and interictal EEG using RMS frequency, dominant frequency, root mean instantaneous frequency square and their parameters ratio

Mahapatra, Arindam Gajendra; Horio, Keiichi

doi:10.1016/j.bspc.2018.04.007

Cited by 15 publications

(1 citation statement)

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“…In this study, we employed the Root-Mean-Square (RMS) analysis, a statistical measure commonly used to quantify the magnitude or intensity of a varying signal or data set. The application of RMS analysis in EEG research has a long-standing history, and it has been utilized in numerous studies [ 32 ], [ 33 ], [ 34 ] utilizing this technique to explore brain dynamics and related phenomena based on EEG data.…”

Section: Methodsmentioning

confidence: 99%

Localizing EEG Recordings Associated With a Balance Threat During Unexpected Postural Translations in Young and Elderly Adults

Wang,

Graci,

Seacrist

et al. 2023

IEEE Trans. Neural Syst. Rehabil. Eng.

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Balance perturbations are accompanied by global cortical activation that increases in magnitude when postural perturbations are unexpected, potentially due to the addition of a startle response. A specific site for best recording the response to unexpected destabilization has not been identified. We hypothesize that a single sensor located near to subcortical brainstem mechanisms could serve as a marker for the response to unpredictable postural events. Twenty healthy young (20.8 ± 2.9 yrs) and 20 healthy elder (71.7 ± 4.2 yrs) adults stood upright on a dynamic platform with eyes open. Platform translations (20 cm at 100 cm/s) were delivered in the posterior (29 trials) and anterior (5 catch trials) directions. Active EEG electrodes were located at Fz and Cz and bilaterally on the mastoids. Following platform acceleration onset, 300 ms of EEG activity from each trial was detrended, baseline-corrected, and normalized to the first trial. Average Root-Mean-Square (RMS) values across “unpredictable” and “predictable” events were computed for each channel. EEG RMS responses were significantly greater with unpredictable than predictable disturbances: Cz (p<0.001), Fz (p<0.003), and mastoid (p<0.0001). EEG RMS responses were also significantly greater in elderly than young adults at Cz (p<0.02) and mastoid (p<0.04). A significant effect of sex in the responses at the mastoid sensors (p<0.04) revealed that elderly male adults were principally responsible for the age effect. These results confirm that the cortical activity resulting from an unexpected postural disturbance could be portrayed by a single sensor located over the mastoid bone in both young and elderly adults.

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Section: Methodsmentioning

confidence: 99%