Auditory Source Localization by Time Frequency Analysis and Classification of Electroencephalogram Signals

Cesar Augusto Aceros Moreno, Vidya Manian, Domingo Rodriguez, Juan Valera

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The temporal lobe or auditory cortex in the brain is involved in processing auditory stimuli. The auditory data processing capability in the brain changes as a person ages. In this paper, we use the hrtf method to produce sound in different directions as auditory stimulus. Experiments are conducted with auditory stimulation of human subjects. Electroencephalogram (EEG) recording from the subjects are made during the exposure to the sound. A set of time frequency analysis operators consisting of the cyclic short time Fourier transform and the continuous wavelet transform is applied to the pre-processed EEG signal and a classifier is trained with time-frequency power from training data. The support vector machine classifier is then used for source localization of the sound. The paper also presents results with respect to neuronal regions involved in processing multi source sound information.
Idioma originalInglés
PublicaciónBiomedical Journal of Scientific & Technical Research
EstadoPublicada - 2019

Palabras clave

  • Auditory Stimulus
  • Electroencephalogram
  • Time frequency analysis
  • Fourier transform
  • Wavelet transform
  • Support vector machine
  • Classifier
  • Source localization

Tipos de Productos Minciencias

  • Artículos de investigación con calidad Q4

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