AuthorAd T

2018-04-05

Coherence estimation of EEG signals using moving window methodology

By Ad T
15 Min read
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05April

The coordination of EEG rhythms between brain areas can be detected by using Coherence analysis. Is a method developed on the base of classic coherence analysis and signals joint time-frequency representations in recent years. It was used to extract transient characteristics of interactions among brain areas. Describes the temporal, spatial and frequency relationships of brain activities. In this...

2018-03-15

How to extract brain wave bands: Gamma, Beta, Alpha, Theta, Delta

By Ad T
9 Min read
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15March

All human beings display five different types of electrical patterns or brain waves over the cortex in order of highest frequency to lowest are as follows: Gamma, Beta, Alpha, Theta, and Delta. Each brain wave has a purpose and helps serve us in optimal mental functioning. If one of the five types of brain waves are either overproduced or under-produced in our brain, it can cause problems [1]...

2018-03-02

How to localize EEG-signals according to the international 10-20 system of electrodes position

By Ad T
8 Min read
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02March

In order to perform measurements for feature extraction, it is needed to localize the channels from the data-set recordings to, which contain the raw brain waves with some technical specification of each signal. CHB-MIT Scalp EEG Database is one of the most cited resources used in prediction detection experiments. It is also one of the few publicly available invasive EEG data-sets. The database...

2018-01-14

How to manipulate an enormous Data Set

By Ad T
5 Min read
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14January

Data Preparation is the core of data science and it is crucial for any data analysis. It involves data cleansing and feature engineering. Usually, this takes 60 to 80 percent of the whole analytical pipeline. However, it is a mandatory task in order to get the best accuracy from machine learning algorithms on your data-sets [1]. The first part of this process is the Data Cleansing is the process...

2018-01-10

A small Preview of Epilepsy Seizure Prediction, What? How? Why?

By Ad T
13 Min read
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10January

Epilepsy is a chronic neurological disorder that affects approximately 50 million people worldwide. These intractable seizures postures are a serious risk of injury, restrict the self-sufficiency and mobility of a person. While medication and surgery can, to some degree, relieve the symptoms, these treatments fail to help all patients. Population wide, approximately 1% is suffering from epilepsy...

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