Automatic Discrimination of Auditory Stimuli Perceived by the Human Brain

Angela Serra, Antonio della Pietra, Marcus Herdener, Roberto Tagliaferri, Fabrizio Esposito

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

    Abstract

    Humans are able to perceive small difference of sound frequency but it is still unknown how the difference in frequency information is represented at the level of the primary sensory cortex. Indeed, analysis of fMRI imaging identified tonotopic maps through the auditory pathways to the primary sensory cortex. These maps are unfortunately too coarse to show ultra-fine discrimination. Then, the hypothesis is that this small frequency differences are recognised thanks to the information coming from a large set of auditory neurons. To investigate this possibility, a multi-voxel pattern discriminating analysis of the response of BOLD-fMRI in the bilateral auditory cortex to tonal stimuli with different shift in frequency was performed. Our results suggest that small shifts in the frequency are easily classified compared with big shifts and that multiple areas of the auditory cortex are involved in the tone recognition.

    Original languageEnglish
    Title of host publicationComputational Intelligence Methods for Bioinformatics and Biostatistics
    Subtitle of host publication15th International Meeting, CIBB 2018, Revised Selected Papers
    EditorsMaria Raposo, Paulo Ribeiro, Susana Sério, Antonino Staiano, Angelo Ciaramella
    Place of PublicationCham
    PublisherSpringer
    Pages205-211
    Number of pages7
    ISBN (Electronic)978-3-030-34585-3
    ISBN (Print)978-3-030-34584-6
    DOIs
    Publication statusPublished - 2020
    Publication typeA4 Article in conference proceedings
    EventInternational Conference on Computational Intelligence Methods for Bioinformatics and Biostatistics, CIBB - Caparica, Portugal
    Duration: 6 Sept 20188 Sept 2018
    Conference number: 15th

    Publication series

    NameLecture Notes in Computer Science
    Volume11925
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Conference

    ConferenceInternational Conference on Computational Intelligence Methods for Bioinformatics and Biostatistics, CIBB
    Country/TerritoryPortugal
    CityCaparica
    Period6/09/188/09/18

    Keywords

    • Auditory cortex
    • BOLD-fMRI
    • Tonotonic maps

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Theoretical Computer Science
    • General Computer Science

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