A novel approach for food intake detection using electroglottography

• Autores: Farooq, Muhammad; Fontana, Juan Manuel; Sazonov, Edward
• Año de publicación: 2014
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: EATING DISORDERS; INGESTIVE BEHAVIORS; DIETARY INTAKE MONITORING; ELECTROGLOTTOGRAPHY SENSOR; SUPPORT VECTOR MACHINES; SWALLOWING SOUND
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

Many methods for monitoring diet and food intake rely on subjects self-reporting their daily intake. These methods are subjective, potentially inaccurate and need to be replaced by more accurate and objective methods. This paper presents a novel approach that uses an electroglottograph (EGG) device for an objective and automatic detection of food intake. Thirty subjects participated in a four-visit experiment involving the consumption of meals with self-selected content. Variations in the electrical impedance across the larynx caused by the passage of food during swallowing were captured by the EGG device. To compare performance of the proposed method with a well-established acoustical method, a throat microphone was used for monitoring swallowing sounds. Both signals were segmented into non-overlapping epochs of 30 s and processed to extract wavelet features. Subject-independent classifiers were trained, using artificial neural networks, to identify periods of food intake from the wavelet features. Results from leave-one-out cross validation showed an average per-epoch classification accuracy of 90.1% for the EGG-based method and 83.1% for the acoustic-based method, demonstrating the feasibility of using an EGG for food intake detection.
Fil: Farooq, Muhammad. University of Alabama; Estados Unidos
Fil: Fontana, Juan Manuel. University of Alabama; Estados Unidos. Universidad Nacional de Río Cuarto. Facultad de Ingeniería. Departamento de Mecánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Sazonov, Edward. University of Alabama; Estados Unidos