Production and Perception Errors From Speech Error Corpora Reflect Macro- and Meso-Level Structure of the Phonological Language Network.

The goal of the present study was to investigate if cognitive traces of the network structure of the phonological language network, where phonological word-form neighbors are connected to each other, could be uncovered in word substitution errors. The phonological network has a set of macro-level (i.e., features characterizing global structure of the lexicon) and meso-level (i.e., features characterizing intermediate structure or subgroups within the lexicon) structural features that should be observable in speech error data if such features play a role in production and retrieval processes. A total of 1,067 single-word substitution errors, which included 965 production errors (i.e., slips of the tongue) and 102 perception errors (i.e., slips of the ear), were analyzed in the present study. Results indicated evidence of both macro- and meso-level lexicon structures in word substitution errors, providing converging evidence that structural features of the phonological network have implications for language-related processes.