The cortical organization of speech processing

Gregory Hickok, David Poeppel

Research output: Contribution to journalReview articlepeer-review


Despite decades of research, the functional neuroanatomy of speech processing has been difficult to characterize. A major impediment to progress may have been the failure to consider task effects when mapping speech-related processing systems. We outline a dual-stream model of speech processing that remedies this situation. In this model, a ventral stream processes speech signals for comprehension, and a dorsal stream maps acoustic speech signals to frontal lobe articulatory networks. The model assumes that the ventral stream is largely bilaterally organized - although there are important computational differences between the left- and right-hemisphere systems - and that the dorsal stream is strongly left-hemisphere dominant.

Original languageEnglish (US)
Pages (from-to)393-402
Number of pages10
JournalNature Reviews Neuroscience
Issue number5
StatePublished - May 2007

ASJC Scopus subject areas

  • General Neuroscience


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