Authors:
María Evangelina Herrán-Paz
1
;
Raúl Ortiz-Monasterio
2
;
Antonio Rodríguez-Díaz
1
;
Olivia Mendoza
1
;
Juan R. Castro
1
and
Hector J. Willys
1
Affiliations:
1
Autonomous University of Baja, United States
;
2
Mexican Association of Neurology and Neurosurgery, Mexico
Keyword(s):
Analysis EEG Signals, Theta/Beta Ratio, Clinical Evolution.
Related
Ontology
Subjects/Areas/Topics:
Artificial Intelligence
;
Biomedical Engineering
;
Biomedical Signal Processing
;
Data Manipulation
;
Health Engineering and Technology Applications
;
Human-Computer Interaction
;
Informatics in Control, Automation and Robotics
;
Methodologies and Methods
;
Neurocomputing
;
Neurotechnology, Electronics and Informatics
;
Pattern Recognition
;
Physiological Computing Systems
;
Sensor Networks
;
Signal Processing, Sensors, Systems Modeling and Control
;
Soft Computing
;
Time and Frequency Response
;
Time-Frequency Analysis
Abstract:
This study was performed to assess whether the theta/beta ratio can be regarded as an indicator of pediatric patients’ evolution while receiving treatment for ADHD. This required a spectral analysis of the electrophysiological power output from several channels with reference at the vertex (Cz). The files and EEG signals of sixteen clinical cases, which included children and adolescents
from 4 to 16 years of age, were analyzed. The analysis of the EEG signals was performed using the Fast Fourier Transform (FFT) to obtain the frequency bands. Patients were under pharmacological treatment for at least one year and had at least 2 EEG studies. The results indicate that a good correlation exists between the theta/beta ratio and the patient’s clinical evolution. 42% of the
patients who had 3 or more EEG’s, showed good correlation (r > 0.9), which was coherent with their good clinical evolution. 33% showed linear tendency (0.63 < r < 0.73), with variable response and recovery tendency
. 25% had bad correlation (r < 0.3), also with variable treatment response. These results relate to poor adherence to the pharmacological treatment.
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