[Event-related potentials - an objective tool for assessment of the speech understanding process. II. Syntactic potentials (ELAN, P600)].

Investigations into electrophysiological potentials reflecting the process of grammatical analysis of the speech structure revealed a positive wave with the latency of 600 ms and maximum amplitude within the parietal region (P 600 wave). Presumably, this wave can reflect some consciously controlled processes of re-analysis and correction of grammatical and syntactic inconsistencies. It can be used for the diagnosis of speech disorders.