Ferda Bozkurt

Work place: Department of Electrical and Electronics Engineering, Sakarya, 54187, Turkey

E-mail: fbozkurt@sakarya.edu.tr


Research Interests: Image Processing, Image and Sound Processing, Natural Language Processing


Ferda Bozkurt was born in Izmir, Turkey. She received her Bachelor of Science Degree in Computer Science from Queens College, The City University of New York, USA. She graduated from Sakarya University with a Masters in Electrical and Electronic Engineering. Currently, she is a Ph.D. student in the department of Electrical and Electronic Engineering at Sakarya University. She is also a lecturer at Sakarya University, Vocational School of Adapazari. Her research areas include biomedical signal classification, statistical signal processing, digital signal processing.

Author Articles
Sympathetic Skin Response: A New Biological Signal that can be used in Diagnosis of Fibromyalgia Instead of Beck Depression Inventory

By Muhammed Kursad Ucar Mehmet Recep Bozkurt Ferda Bozkurt

DOI: https://doi.org/10.5815/ijigsp.2016.07.04, Pub. Date: 8 Jul. 2016

Fibromyalgia is a chronic pain syndrome that generally appears with prevalent muscular pain, sleep disorder and fatigue. Its diagnosis is very difficult. It is diagnosed in a long time after evaluating variety of psychological test scores along with physiological and laboratory tests. Psychological tests are thought not to be as reliable as laboratory test results since they depend on oral reports of the patients, and can differ from patient to patient. Beck depression inventory is one of the psychological test scores. In this study, a new biological signal that could be used instead of Beck depression inventory is introduced. For this purpose, sympathetic skin responses were used along with physiological and laboratory test results that were collected both from diagnosed fibromyalgia patients and healthy patients. A relationship based on classification was aimed to be established between the data and Beck depression inventory by using artificial neural networks. Three different artificial neural network training algorithm were used in the study. According to the results, physiological and laboratory test results and back depression inventory were estimated with the accuracy rate of 77.70\%. When all the data were used with Levenberg-Marquardt back propagation training algorithm, this rate went up to 90.91\%. According to these results, sympathetic skin responses can be safely used instead of Beck depression inventory when they were used along with other parameters that were used in fibromyalgia diagnosis.

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Determination of New Bio Signal and Tests Alternative to Verbal Pain Scale for Diagnosing Fibromyalgia Syndrome

By Muhammed Kursad Ucar Mehmet Recep Bozkurt Ferda Bozkurt

DOI: https://doi.org/10.5815/ijigsp.2016.03.01, Pub. Date: 8 Mar. 2016

In this study; values obtained through the analysis of blood samples, taken under laboratory conditions, from patients diagnosed with fibromyalgia syndrome and healthy subjects and the sympathetic skin response parameters were used. With the aim of classifying verbal pain scale, which is one of the psychological test scores used for fibromyalgia syndrome diagnosis; relation between the sympathetic skin response effect on other test data and the verbal pain scale were reviewed by using different conditions of available data. Within this framework, three different algorithms were used for classification with high accuracy rates. These algorithms are: Multi-Layer Feed-Forward Neural Networks, Probabilistic Neural Network and Radial Basis Function Neural Network. For Multi-Layer Feed-Forward Neural Networks classification algorithm, classification was done with three different training algorithms, Levenberg-Marquardt back propagation, Resilient back propagation and the Scaled conjugate gradient back propagation and the results were compared elaborately. Based on the results, by using all variables the following accuracy rates were obtained: 68.2% accuracy with Levenberg-Marquardt training algorithm, 77.3% accuracy with the Resilient back propagation training algorithm, and 68.18% accuracy with the Scaled conjugate gradient training algorithm. These success rates show that there is a relationship between verbal pain scale, sympathetic skin response and other test data.

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