Mining Tinnitus Database for Knowledge

Mining Tinnitus Database for Knowledge

Pamela L. Thompson (University of North Carolina at Charlotte, USA), Xin Zhang (University of North Carolina at Pembroke, USA), Wenxin Jiang (University of North Carolina at Charlotte, USA), Zbigniew W. Ras (University of North Carolina at Charlotte, USA) and Pawel Jastreboff (Emory University School of Medicine, USA)
DOI: 10.4018/978-1-60566-218-3.ch014
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This chapter describes the process used to mine a database containing data, related to patient visits during Tinnitus Retraining Therapy. The original collection of datasets containing diagnostic and treatment data on tinnitus patients and visits was collected by P. Jastreboff. This sparse dataset consisted of eleven tables primarily related by patient id, number, and date of visit. First, with the help of P. Jastreboff, we gained an understanding of the domain knowledge spanning different disciplines (including otology and audiology), and then we used this knowledge to extract, transform, and mine the constructed database. Complexities were encountered with temporal data and text mining of certain features.The researchers focused on analysis of existing data, along with automating the discovery of new and useful features in order to improve classification and understanding of tinnitus diagnosis.
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Domain Knowledge

The domain knowledge for tinnitus involves many disciplines, primarily including otology and audiology. Tinnitus appears to be caused by a variety of factors including exposure to loud noises, head trauma, and a variety of diseases. An interesting fact is that tinnitus can be induced in 94% of the population by a few minutes of sound deprivation (Heller & Bergman, 1953).

Decreased sound tolerance frequently accompanies tinnitus and can include symptoms of hyperacucisis (an abnormal enhancement of signal within the auditory pathways), misophonia (a strong dislike of sound) or phonophobia (a fear of sound) (Jastreboff, 2004). Past approaches to treatment tend to have been based on anecdotal observations and treatment often focused on tinnitus suppression. Currently a wide variety of approaches are utilized, ranging from sound use to drugs or electrical or magnetical stimulation of the auditory cortex.

Jastreboff (1995) offers an important new model (hence treatment) for tinnitus that focuses on the phantom aspects of tinnitus with tinnitus resulting exclusively from activity within the nervous system that is not related to corresponding activity with the cochlea or external stimulation. The model furthermore stresses that in cases of clinically-significant tinnitus, various structures in the brain, particularly the limbic and autonomic nervous system, prefrontal cortex, and reticular formations play a dominant role with the auditory system being secondary.

Tinnitus Retraining Therapy (TRT), developed by Jastreboff, is a treatment model with a high rate of success (over 80% of the cases) and is based on the neurophysical model of tinnitus. Neurophysiology is a branch of science focusing on the physiological aspect of nervous system function (Jastreboff, 2004). Tinnitus Retraining Therapy “cures” tinnitus-evoked reactions by retraining its association with specific centers throughout the nervous system, particularly the limbic and autonomic systems.

The limbic nervous system (emotions) controls fear, thirst, hunger, joy and happiness and is involved in learning, memory, and stress. The limbic nervous system is connected with all sensory systems. The autonomic nervous system controls functions of the brain and the body over which we have limited control, e.g., heart beating, blood pressure, and release of hormones. The limbic and autonomic nervous systems are involved in stress, annoyance, anxiety etc. When these systems become activated by tinnitus-related neuronal activity (tinnitus signal) negative symptoms are evoked (Jastreboff, 2004). Unfortunately, many patients seeking treatment other than TRT are often told that nothing can be done about their tinnitus. This can have the negative effect of enhancing the limbic nervous system reactions, which then can cause strengthening of the negative effect of the tinnitus on a patient (see Figure 1: Block diagram of the neurophysiological model of tinnitus (Jastreboff, 2004)).

Figure 1.

Block diagram of the neurophysiological model of tinnitus

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Table of Contents
Riccardo Bellazzi
Petr Berka, Jan Rauch, Djamel Abdelkader Zighed
Petr Berka, Jan Rauch, Djamel Abdelkader Zighed
Chapter 1
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Data, Information and Knowledge
Chapter 2
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Ontologies in the Health Field
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Chapter 4
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Classification and Prediction with Neural Networks
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EEG Data Mining Using PCA  (pages 161-180)
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