Frequency following responses to speech sounds in a passive oddball paradigm

Abstract

Event Abstract Back to Event Frequency following responses to speech sounds in a passive oddball paradigm Lavinia Slabu1*, Sabine Grimm1 and Carles Escera1 1 University of Barcelona, Spain Auditory evoked potential (AEP) studies indicate that infrequent deviant sounds reliably elicit a negative potential approximately 100-300 ms after the stimulus onset called mismatch negativity response, associated with change detection. Recent results from animal studies (Malmierca et al., 2009) suggest that cognitive AEPs in humans might be preceded by earlier novelty-related activity. The goal of the current study is to investigate the effect of auditory deviance detection on the brainstem frequency following response (FFR) for speech syllables. Five different consonant-vowel syllables were presented monaurally to the right ear. The stimuli differed in the duration of the transition of the first and second formants of the syllable, 20, 35, 50, 65, and 80 ms. The stimuli were perceived either as /ba/ or as a soft to a strong /wa/. Three blocked conditions were presented: an oddball block with a deviant /wa/1 probability of p = .2; a reverse oddball block; and a control block in which the five stimuli were presented randomly (p = .2). FFR were recorded from 18 participants at Cz using left earlobe as reference. 8192-points Fourier analyses were applied on the individual FFR in the time window 20-85 ms after syllable onset and the mean spectral amplitude was calculated for 10 Hz wide bins surrounding the F0 (100 Hz) and the subsequent three harmonics, H2, H3, H4. The amplitudes of the H2 (F2,34 = 5.312, p = .017) and H4 (F2,34 = 6.172, p = .010) for the /ba/ syllable were significant smaller for the deviant stimulus than for the responses elicited both to the standard and to the control stimuli. The results of the present study confirm that the human brainstem encodes acoustic regularities and reveal that auditory deviance detection can take place in human auditory brainstem. Funding: Supported by PSI2009-08063 grant; Consolider-Ingenio2010 Program (CDS2007-00012) of the Spanish Ministry of Science and Innovation, 2009SGR11 grant Keywords: auditory evoked potential, Perception Conference: XI International Conference on Cognitive Neuroscience (ICON XI), Palma, Mallorca, Spain, 25 Sep - 29 Sep, 2011. Presentation Type: Poster Presentation Topic: Poster Sessions: Neurophysiology of Sensation and Perception Citation: Slabu L, Grimm S and Escera C (2011). Frequency following responses to speech sounds in a passive oddball paradigm. Conference Abstract: XI International Conference on Cognitive Neuroscience (ICON XI). doi: 10.3389/conf.fnhum.2011.207.00333 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 23 Nov 2011; Published Online: 28 Nov 2011. * Correspondence: Dr. Lavinia Slabu, University of Barcelona, Barcelona, Spain, lslabu@yahoo.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Lavinia Slabu Sabine Grimm Carles Escera Google Lavinia Slabu Sabine Grimm Carles Escera Google Scholar Lavinia Slabu Sabine Grimm Carles Escera PubMed Lavinia Slabu Sabine Grimm Carles Escera Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.