The interplay of word formation type, affixal homonymy, and productivity in lexical processing: Evidence from a morphologically rich language

This study addresses the role of three factors in morphological processing of visually presented words in Finnish: word formation type (inflection versus derivation), productivity and affixal homonymy. Three visual lexical decision experiments show that complex words can be processed slower, equally fast, or even faster than comparable monomorphemic word forms. We will argue that this diverse pattern of results reflects the ways different complex words are stored and processed. Moreover it indicates that the balance of storage and computation crucially depends on the interplay of the three above-mentioned factors. Surprisingly, our results converge in a manner consistent with data obtained from a typologically very different language, namely Dutch.