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  Recognition of morphologically complex words in Finnish: Evidence from event-related potentials

Lehtonen, M., Cunillera, T., Rodríguez-Fornells, A., Hultén, A., Tuomainen, J., & Laine, M. (2007). Recognition of morphologically complex words in Finnish: Evidence from event-related potentials. Brain Research, 1148, 123-137. doi:10.1016/j.brainres.2007.02.026.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-A0A2-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-A0A6-3
Genre: Journal Article

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 Creators:
Lehtonen, Minna1, 2, Author
Cunillera, Toni1, 3, Author
Rodríguez-Fornells, Antoni3, 4, Author
Hultén, Annika1, 2, 5, Author              
Tuomainen, Jyrki2, 6, Author
Laine, Matti1, 2, Author
Affiliations:
1Department of Psychology, Åbo Akademi University, FIN-20500 Turku, Finland, ou_persistent22              
2Centre for Cognitive Neuroscience, University of Turku, Finland, ou_persistent22              
3Department of Basic Psychology, University of Barcelona, Spain, ou_persistent22              
4Institució Catalana de Recerca i Estudis Avançats (ICREA), Spain, ou_persistent22              
5Brain Research Unit, Low Temperature Laboratory, Helsinki University of Technology, Finland, ou_persistent22              
6Human Communication Science, University College London, UK, ou_persistent22              

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Free keywords: Morphological processing, Decomposition Composition, Event-related potentials, N400, Violation of grammatical rules
 Abstract: The temporal dynamics of processing morphologically complex words was investigated by recording event-related brain potentials (ERPs) when native Finnish-speakers performed a visual lexical decision task. Behaviorally, there is evidence that recognition of inflected nouns elicits a processing cost (i.e., longer reaction times and higher error rates) in comparison to matched monomorphemic words. We aimed to reveal whether the processing cost stems from decomposition at the early visual word form level or from recomposition at the later semantic–syntactic level. The ERPs showed no early effects for morphology, but revealed an interaction with word frequency at a late N400-type component, as well as a late positive component that was larger for inflected words. These results suggest that the processing cost stems mainly from the semantic–syntactic level. We also studied the features of the morphological decomposition route by investigating the recognition of pseudowords carrying real morphemes. The results showed no differences between inflected vs. uninflected pseudowords with a false stem, but differences in relation to those with a real stem, suggesting that a recognizable stem is needed to initiate the decomposition route.

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Language(s): eng - English
 Dates: 2007-02-222007
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.brainres.2007.02.026
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Title: Brain Research
Source Genre: Journal
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Pages: - Volume / Issue: 1148 Sequence Number: - Start / End Page: 123 - 137 Identifier: -