Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study
The spatiotemporal dynamics of the neural processing of spoken morphologically complex words are still an open issue. In the current study, we investigated the time course and neural sources of spoken inflected and derived words using simultaneously recorded electroencephalography (EEG) and magnetoe...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2011-07-01
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| Series: | Frontiers in Human Neuroscience |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2011.00066/full |
| _version_ | 1818428105754148864 |
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| author | Alina eLeminen Miika eLeminen Miika eLeminen Minna eLehtonen Minna eLehtonen Minna eLehtonen Päivi eNevalainen Sari eYlinen Lilli eKimppa Christian eSannemann Jyrki P Mäkelä Teija eKujala |
| author_facet | Alina eLeminen Miika eLeminen Miika eLeminen Minna eLehtonen Minna eLehtonen Minna eLehtonen Päivi eNevalainen Sari eYlinen Lilli eKimppa Christian eSannemann Jyrki P Mäkelä Teija eKujala |
| author_sort | Alina eLeminen |
| collection | DOAJ |
| description | The spatiotemporal dynamics of the neural processing of spoken morphologically complex words are still an open issue. In the current study, we investigated the time course and neural sources of spoken inflected and derived words using simultaneously recorded electroencephalography (EEG) and magnetoencephalography (MEG) responses. Ten participants (native speakers) listened to inflected, derived, and monomorphemic Finnish words and judged their acceptability. EEG and MEG responses were time-locked to both the stimulus onset and the critical point (suffix onset for complex words, uniqueness point for monomorphemic words). The ERP results showed that inflected words elicited a larger left-lateralized negativity than derived and monomorphemic words approximately 200 ms after the critical point. Source modeling of MEG responses showed one bilateral source in the superior temporal area ~100 ms after the critical point, with derived words eliciting stronger source amplitudes than inflected and monomorphemic words in the right hemisphere. Source modeling also showed two sources in the temporal cortex approximately 200 ms after the critical point. There, inflected words showed a more systematic pattern in source locations and elicited temporally distinct source activity in comparison to the derived word condition. The current results provide electrophysiological evidence for at least partially distinct cortical processing of spoken inflected and derived words. In general, the results support models of morphological processing stating that during the recognition of inflected words, the constituent morphemes are accessed separately. With regard to derived words, stem and suffix morphemes might be at least initially activated along with the whole word representation. |
| first_indexed | 2024-12-14T14:56:20Z |
| format | Article |
| id | doaj.art-bf383ece36bb4e6f8daf5e2a3ed2446f |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-14T14:56:20Z |
| publishDate | 2011-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-bf383ece36bb4e6f8daf5e2a3ed2446f2022-12-21T22:56:59ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612011-07-01510.3389/fnhum.2011.0006610732Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG studyAlina eLeminen0Miika eLeminen1Miika eLeminen2Minna eLehtonen3Minna eLehtonen4Minna eLehtonen5Päivi eNevalainen6Sari eYlinen7Lilli eKimppa8Christian eSannemann9Jyrki P Mäkelä10Teija eKujala11University of HelsinkiUniversity of HelsinkiFinnish Centre of Excellence in Interdisciplinary Music ResearchUniversity of HelsinkiÅbo Akademi UniversityAalto University School of Science and TechnologyHospital District of Helsinki and UusimaaUniversity of HelsinkiUniversity of HelsinkiUniversity of HelsinkiHospital District of Helsinki and UusimaaUniversity of HelsinkiThe spatiotemporal dynamics of the neural processing of spoken morphologically complex words are still an open issue. In the current study, we investigated the time course and neural sources of spoken inflected and derived words using simultaneously recorded electroencephalography (EEG) and magnetoencephalography (MEG) responses. Ten participants (native speakers) listened to inflected, derived, and monomorphemic Finnish words and judged their acceptability. EEG and MEG responses were time-locked to both the stimulus onset and the critical point (suffix onset for complex words, uniqueness point for monomorphemic words). The ERP results showed that inflected words elicited a larger left-lateralized negativity than derived and monomorphemic words approximately 200 ms after the critical point. Source modeling of MEG responses showed one bilateral source in the superior temporal area ~100 ms after the critical point, with derived words eliciting stronger source amplitudes than inflected and monomorphemic words in the right hemisphere. Source modeling also showed two sources in the temporal cortex approximately 200 ms after the critical point. There, inflected words showed a more systematic pattern in source locations and elicited temporally distinct source activity in comparison to the derived word condition. The current results provide electrophysiological evidence for at least partially distinct cortical processing of spoken inflected and derived words. In general, the results support models of morphological processing stating that during the recognition of inflected words, the constituent morphemes are accessed separately. With regard to derived words, stem and suffix morphemes might be at least initially activated along with the whole word representation.http://journal.frontiersin.org/Journal/10.3389/fnhum.2011.00066/fullauditoryMEGmorphologyERPLexiconderived |
| spellingShingle | Alina eLeminen Miika eLeminen Miika eLeminen Minna eLehtonen Minna eLehtonen Minna eLehtonen Päivi eNevalainen Sari eYlinen Lilli eKimppa Christian eSannemann Jyrki P Mäkelä Teija eKujala Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study Frontiers in Human Neuroscience auditory MEG morphology ERP Lexicon derived |
| title | Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study |
| title_full | Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study |
| title_fullStr | Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study |
| title_full_unstemmed | Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study |
| title_short | Spatiotemporal dynamics of the processing of spoken inflected and derived words: a combined EEG and MEG study |
| title_sort | spatiotemporal dynamics of the processing of spoken inflected and derived words a combined eeg and meg study |
| topic | auditory MEG morphology ERP Lexicon derived |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2011.00066/full |
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