Dual stream model of language

A model that incorporates current understanding of speech and language

Region 1: (primary auditory areas) initial processing of language.

The ventral stream flows from Region 1 to Region 2 (anterior and middle temporal lobe) and is involved in speech recognition and lexical concepts.

The dorsal stream maps phonological information onto motor areas (Regions 4 (premotor cortex) & 5 (≈ Broca’s area)).

Regions 3 (≈ Wernicke’s area), 4 & 5 are all involved in dorsal stream processing.