Brain mechanisms for processing systematic sound-to-meaning mappings for concrete and abstract concepts

To date, neurobiological accounts of lexical-semantic processing have largely assumed, either explicitly or implicitly, that there is no relationship between the sound of a word and its meaning, despite empirical evidence to the contrary. Recently, multiple representation theories have begun to incorporate non-arbitrary relationships in which a word’s form resembles its meaning (iconicity). However, non-arbitrary form-meaning relationships occur more extensively within languages as statistical r