eeg research with graph theory
DESCRIPTION
EEG Research with graph theory. Ivan Grechikhin. EEG. Electro e ncephalo g raphy (EEG) – special way to retrieve the activity of brains Graph theory – good for visualization purposes An e lectrode represents a point in graph Every electrode has a characteristic – a numerical series - PowerPoint PPT PresentationTRANSCRIPT
EEG Research with graph theory
Ivan Grechikhin
EEG
Electroencephalography (EEG) – special way to retrieve the activity of brains
Graph theory – good for visualization purposes
o An electrode represents a point in graph
o Every electrode has a characteristic – a numerical series
o Measure of closeness of two electrodes must compare two numerical series
o As a result, we must somehow display the most significant or interesting connections in brain.
Technique
Measures of closeness – coherency, imaginary part of coherency, synchronization likelihood
Minimal spanning trees (MST) were used as a structure for visualizing and researching
The goal is to find difference between brain properties of left-handed and right handed people
Summarizing, we try to find differences of MST properties for left-handed and right-handed people.
