Abstract
The goal of this paper is to review the main results offered by some experimental paradigms to support morphological processing of visual isolated words. Three theoretical hypotheses proposing different solutions to the role of word morphological structure in lexical access and representation are described: a) full parsing, b) full listing and c) mixed models. Data from morphologically structured nonwords, comparison between monomorphemic and polymorphemic words and between morphologically regular and irregular words, priming studies, and contrasts between superficial and cumulative frequency are examined to propose some tentative conclusions about the possibilities of the morphological processing models. Key words: Morphology, full listing, full parging, dual route model, irregular words, gender, morphological priming, cumulative frequency.