Abstract
Event Abstract Back to Event Event-related potential features of suprasegmental speech cues processing in infancy Anett Rago1*, Ferenc Honbolygó1, V. Csépe1, Zs Róna2 and A. Beke2 1 Research Institute for Psychology of the Hungarian Academy of Sciences, Hungary 2 Department of Obsterics and Gynecology, Semmelweis University, Hungary During the process of language perception, infants have different tasks to solve. Phoneme perception studies revealed that normalization and categorical perception are essential features of speech comprehension. From behavioral and ERP studies we know that from the beginning of their life, young infants without special training or instruction have access to phonemic representation. Along with these local speech cues however there exist the so called suprasegmental speech cues that may also contribute to the transformation of input to the prelexical intermediate representation. One of these psycho-acoustic features is the word stress. We know from earlier studies that from 5 months of age infants are sensitive to the rhythmic properties of language inputs that are characteristic of their mother language. The stress though is a complex phenomenon. Different languages use different characteristics (pitch, length of syllables) to sign stress. In Hungarian, we use long vowels without stress on them; nevertheless the case is simple in that way that as a rule the stress is always on the first syllable. In this study, our aim was to investigate the difference between processing phonemic and rhythmic speech cues before the first year of life. In addition to this, we inquired into the developmental patterns characteristic of at risk infant groups (preterm infants) because of the need of early detection and correction of potential developmental irregularities. 33 6- and 10-month old, full-term and pre-term infants were participated in the experiment.We used a passive oddball paradigm with a standard Hungarian word ‘banán’ (‘banana’ in English) and two deviants: a voiceless phoneme deviant (‘panán’, which is meaningless in Hungarian), and a stress deviant where the stress was on the second syllable, instead of the first (‘ban:án’). Our results show that at the early ages (6 months of age) there were significant differences between the preterm and full-term infant groups in the two experimental conditions. At six months of age, special response-patterns were revealed in the full-term control group; there were huge responses for the standard and for both of the deviant stimuli. The normal ten months olds' response was quite the opposite. The pre-term responses were always between the two normal control groups'. The additional analyses revealed that for ten months of age even at-risk infants tend to show the normal response patterns but still in a rudimentary form. The response patterns from the different electrodes suggest great brain maturation differences. Conference: MMN 09 Fifth Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications, Budapest, Hungary, 4 Apr - 7 Apr, 2009. Presentation Type: Poster Presentation Topic: Poster Presentations Citation: Rago A, Honbolygó F, Csépe V, Róna Z and Beke A (2009). Event-related potential features of suprasegmental speech cues processing in infancy. Conference Abstract: MMN 09 Fifth Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications. doi: 10.3389/conf.neuro.09.2009.05.139 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: 26 Mar 2009; Published Online: 26 Mar 2009. * Correspondence: Anett Rago, Research Institute for Psychology of the Hungarian Academy of Sciences, Budapest, Hungary, rago@cogpsyphy.hu 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 Anett Rago Ferenc Honbolygó V. Csépe Zs Róna A. Beke Google Anett Rago Ferenc Honbolygó V. Csépe Zs Róna A. Beke Google Scholar Anett Rago Ferenc Honbolygó V. Csépe Zs Róna A. Beke PubMed Anett Rago Ferenc Honbolygó V. Csépe Zs Róna A. Beke 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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.