On sound-based interpretation of neonatal EEG

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

Significant training is required to visually interpret neonatal EEG signals. This study explores alternative sound-based methods for EEG interpretation which are designed to allow for intuitive and quick differentiation between healthy background activity and abnormal activity such as seizures. A novel method based on frequency and amplitude modulation (FM/AM) is presented. The algorithm is tuned to facilitate the audio domain perception of rhythmic activity which is specific to neonatal seizures. The method is compared with the previously developed phase vocoder algorithm for different time compressing factors. A survey is conducted amongst a cohort of non-EEG experts to quantitatively and qualitatively examine the performance of sound-based methods in comparison with the visual interpretation. It is shown that both sonification methods perform similarly well, with a smaller inter-observer variability in comparison with visual. A post-survey analysis of results is performed by examining the sensitivity of the ear to frequency evolution in audio.

Original languageEnglish
Title of host publication29th Irish Signals and Systems Conference, ISSC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538660461
DOIs
Publication statusPublished - 20 Dec 2018
Event29th Irish Signals and Systems Conference, ISSC 2018 - Belfast, United Kingdom
Duration: 21 Jun 201822 Jun 2018

Publication series

Name29th Irish Signals and Systems Conference, ISSC 2018

Conference

Conference29th Irish Signals and Systems Conference, ISSC 2018
Country/TerritoryUnited Kingdom
CityBelfast
Period21/06/1822/06/18

Keywords

  • amplitude modulation
  • EEG sonification
  • frequency modulation
  • neonatal seizure detection
  • phase vocoder

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