Spatiotemporal dynamics of the processing of spoken derived and inflected words

Abstract

Event Abstract Back to Event Spatiotemporal dynamics of the processing of spoken derived and inflected words Alina Leminen1*, Miika Leminen1, Minna Lehtonen1, Päivi Nevalainen2, Sari Ylinen1, Lilli Kimppa1, Christian Sannemann1, Jyrki P. Mäkelä2 and Teija Kujala1 1 University of Helsinki, Finland 2 Hospital District of Helsinki and Uusimaa, Finland The present study examined the time-course and the neural sources of recognition of spoken morphologically complex words. Ten participants listened to derived, inflected, and monomorphemic Finnish words and judged their acceptability while the electroencephalography (EEG) and magnetoencephalography (MEG) responses were simultaneously recorded. The EEG and MEG responses were time-locked to the critical point (suffix onset for the complex words and uniqueness point for the monomorphemic words). The event-related potential (ERP) results showed that inflected words elicited a larger left-lateralized negativity than derived and monomorphemic words ~200 ms after the critical point, but no differences were observed between derived and monomorphemic words. Equivalent current dipole (ECD) modeling of the MEG responses showed that this negativity was explained by two bilateral sources in the temporal cortex, as inflected words showed larger source amplitudes than derived words. In addition to amplitude differences, the dipole locations differed significantly between derived and inflected words. Moreover, derived words elicited stronger source amplitudes than inflected and monomorphemic words in the right superior temporal area ~100 ms after the critical point. Our findings provide evidence for distinct cortical processing of spoken inflected and derived words. The results support models of morphological processing stating that during the recognition of inflected words, the constituent morphemes are accessed separately. The left-lateralization of the ERP responses suggests that the stem and suffix combination undergoes morphosyntactic licensing. With regard to derived words, stem and suffix morphemes might be at least initially activated along with the whole word representation. Funding: Supported by Academy of Finland. Keywords: EEG, fMRI, Language Conference: XI International Conference on Cognitive Neuroscience (ICON XI), Palma, Mallorca, Spain, 25 Sep - 29 Sep, 2011. Presentation Type: Poster Presentation Topic: Poster Sessions: Neural Bases of Language Citation: Leminen A, Leminen M, Lehtonen M, Nevalainen P, Ylinen S, Kimppa L, Sannemann C, Mäkelä JP and Kujala T (2011). Spatiotemporal dynamics of the processing of spoken derived and inflected words. Conference Abstract: XI International Conference on Cognitive Neuroscience (ICON XI). doi: 10.3389/conf.fnhum.2011.207.00191 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: 19 Nov 2011; Published Online: 28 Nov 2011. * Correspondence: Mrs. Alina Leminen, University of Helsinki, Helsinki, Finland, alina.leminen@helsinki.fi 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 Alina Leminen Miika Leminen Minna Lehtonen Päivi Nevalainen Sari Ylinen Lilli Kimppa Christian Sannemann Jyrki P Mäkelä Teija Kujala Google Alina Leminen Miika Leminen Minna Lehtonen Päivi Nevalainen Sari Ylinen Lilli Kimppa Christian Sannemann Jyrki P Mäkelä Teija Kujala Google Scholar Alina Leminen Miika Leminen Minna Lehtonen Päivi Nevalainen Sari Ylinen Lilli Kimppa Christian Sannemann Jyrki P Mäkelä Teija Kujala PubMed Alina Leminen Miika Leminen Minna Lehtonen Päivi Nevalainen Sari Ylinen Lilli Kimppa Christian Sannemann Jyrki P Mäkelä Teija Kujala 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.