Derivational morphology in the German mental lexicon:
A dual mechanism account

Harald Clahsen, Ingrid Sonnenstuhl, and James P. Blevins

Unpublished manuscript

  The Dual Mechanism Model (Pinker 1999, Clahsen 1999) posits two different cognitive mechanisms for morphologically complex word forms: decomposition of regulars into stems and affixes or exponents, and full-form storage for irregulars. Most of the research in this framework has been done on inflectional morphology. In this paper, we extend the model to derivational morphology. Our studies indicate a contrast between productive inflectional and derivational processes that is consistent with the Dual Mechanism Model as well as the Split Morphology Hypothesis.