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

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Lehtonen M, Cunillera T, Rodriguez-Fornells A, Hulten A, Tuomainen J, Laine M
Publication year: 2007
Journal: Brain Research
Journal acronym: BRAIN RES
Volume number: 1148
Start page: 123
End page: 137
Number of pages: 15
ISSN: 0006-8993


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. BRAIN RESEARCH (c) 2007 Elsevier B.V. All rights reserved.


composition, decomposition, event-related potentials, morphological processing, N400, violation of grammatical rules

Last updated on 2020-14-07 at 07:02