Morphological processing in written word production is based on orthography rather than semantics
Résumé
Written word production is influenced by central and peripheral processes. Evidence suggests that the activation of morphological units in the lexicon influences the dynamics of handwriting. In this study, we designed two priming experiments to examine the representation level of morphological information in the lexicon during written word production in the French language. In both experiments, target words (e.g., chanteur, "singer") were primed by a derived (e.g., chanter, "to sing"), a pseudo-derived (e.g., chantier, "work site"), or an unrelated (e.g., baleine, "whale") prime. We used the pseudo-derivation condition to disentangle two distinct levels of representation: the sublexical (also known as morpho-orthographic) and the supralexical (morpho-semantic). In Experiment 1 (learning-recall task), we measured the writing latency and writing duration of the target words. In Experiment 2 (word pair copying task), we measured the inter-word duration and writing duration of the target words. We observed morphological priming effects in both experiments: The processing of a derived prime influenced target writing compared to an unrelated prime, but the effect was observed on latencies in Experiment 1 and on target writing duration in Experiment 2. We found similar patterns of priming in the derived and pseudo-derived conditions in both experiments. The findings revealed that morphemes are processed at the morpho-orthographic representation level in written word production. Morphemes serve as grouping units during handwriting, a process that operates independently of their meaning.
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