The cortical organization of speech processing

by: Gregory Hickok, David Poeppel

Nature Reviews Neuroscience, Vol. 8, No. 5. (May 2007), pp. 393-402.

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Abstract

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.

@article{nrn-2007-hickok, abstract = {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.}, author = {Hickok, Gregory and Poeppel, David }, citeulike-article-id = {1239767}, doi = {10.1038/nrn2113}, journal = {Nature Reviews Neuroscience}, keywords = {language}, month = {May}, number = {5}, pages = {393--402}, posted-at = {2007-04-20 14:39:28}, priority = {0}, title = {The cortical organization of speech processing}, url = {http://dx.doi.org/10.1038/nrn2113}, volume = {8}, year = {2007} }

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TY - JOUR ID - nrn-2007-hickok L3 - citeulike-article-id:1239767 TI - The cortical organization of speech processing JF - Nature Reviews Neuroscience VL - 8 IS - 5 SP - 393 EP - 402 N2 - 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. KW - language AU - Hickok, Gregory AU - Poeppel, David PY - 2007/05// UR - http://dx.doi.org/10.1038/nrn2113 ER -

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