On modular approaches to grammar: Evidence from Polish

Modularity of grammar has been explicitly or tacitly assumed in many generative analyses. Modules are separate computational systems that perform specific tasks and make use of domain-specific information. It is argued that the concept is difficult to maintain in the light of evidence from Polish. I look at palatalization effects before vowels and conclude that phonological regularities must have access to morphosyntactic information. In addition, certain regularities in the selection of diminutive allomorphs suggest that morphology must have access to phonetic information. As domain specificity, the core concept of modular approaches, is compromised, modularity does not seem a likely candidate for a universal property of grammar.