Resting-State EEG Current Source-Density Of Neural Oscillations:A Gender Comparison Study

Rahimi, Nur Afifah (2017) Resting-State EEG Current Source-Density Of Neural Oscillations:A Gender Comparison Study. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Emerging research have concentrated on determining differences in brain oscillations in groups of subjects inclusive of patients with health and mental disorders. At the moment,very few of such studies focus on gender differences.Our attempt is to investigate gender differences in brain oscillations and the regions involved in healthy subjects.Using pre-recorded resting-state EEG,we sought to compare the similarities and differences of patterns of oscillations in male and female subjects.Thus far,we have 14 EEG resting state recordings for males and 15 females.First,pre-processing will be done on filtering which include high pass filter cut-off of 30 Hz and low pass filter cut-off of 0.3 Hz. The low pass filter is used to get rid of baseline drift while the high pass filter is to get rid of noise.For high pass filter,sodium chloride (electrolyte) from sweating reacting with metals of the electrodes may produce a slow baseline drift.After that,we down sample from 1000 to 250 Hz.Then,continued with manual rejection for muscle artifact and proceed using ICA in EEGLab to reject continuous data for eye/ocular artifacts.Next,the pre-processed data will be exported and analyzed using Loreta.Our objectives are to determine the EEG oscillations (frequency bands) that are significantly different between males and females and the brain regions that are responsible for the difference.All the objectives have been successfully achieved.

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