Time-Frequency Analysis of Unimodal Sensory Processing in Autism Spectrum Disorder

David F. D'Croz-Baron, Mary C. Baker, Tanja Karp

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work summarizes the results of a time-frequency analysis of sensory processing in young adults with Autism Spectrum Disorder via continuous wavelet transform. The sensory tasks consisted of two blocks of unimodal sensory stimuli of the same type (i.e., auditory-auditory or visual-visual). A total of 12 autistic and 15 neurotypical subjects, all between 18-30 years, were analyzed. The 60 electrodes were grouped into 14 regions of interest to identify time-locked elicited brain activity. The power within three selected time-frequency windows for each block was compared between groups, showing significant differences in the first window of the second block of the visual-visual task, with the neurotypicals displaying higher power, suggesting an augmented brain activity in visual processing.

Original languageEnglish
Title of host publication2020 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1220-1224
Number of pages5
ISBN (Electronic)9781509066315
DOIs
StatePublished - May 2020
Event2020 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2020 - Barcelona, Spain
Duration: May 4 2020May 8 2020

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2020-May
ISSN (Print)1520-6149

Conference

Conference2020 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2020
CountrySpain
CityBarcelona
Period05/4/2005/8/20

Keywords

  • Electroencephalogram
  • autism
  • sensory
  • time-frequency.
  • wavelet

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