DMCA
The contribution of the parietal lobes to speaking and writing (2010)
| Venue: | Cereb. Cortex |
| Citations: | 4 - 0 self |
BibTeX
@ARTICLE{Brownsett10thecontribution,
author = {Sonia L. E. Brownsett and Richard J. S. Wise},
title = {The contribution of the parietal lobes to speaking and writing},
journal = {Cereb. Cortex},
year = {2010},
pages = {517--523}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
The left parietal lobe has been proposed as a major language area. However, parietal cortical function is more usually considered in terms of the control of actions, contributing both to attention and cross-modal integration of external and reafferent sensory cues. We used positron emission tomography to study normal subjects while they overtly generated narratives, both spoken and written. The purpose was to identify the parietal contribution to the modalityspecific sensorimotor control of communication, separate from amodal linguistic and memory processes involved in generating a narrative. The majority of left and right parietal activity was associated with the execution of writing under visual and somatosensory control irrespective of whether the output was a narrative or repetitive reproduction of a single grapheme. In contrast, action-related parietal activity during speech production was confined to primary somatosensory cortex. The only parietal area with a pattern of activity compatible with an amodal central role in communication was the ventral part of the left angular gyrus (AG). The results of this study indicate that the cognitive processing of language within the parietal lobe is confined to the AG and that the major contribution of parietal cortex to communication is in the sensorimotor control of writing.
Keyphrases
parietal lobe sensorimotor control modalityspecific sensorimotor control cognitive processing cross-modal integration speech production action-related parietal activity parietal cortex reafferent sensory cue left angular gyrus primary somatosensory cortex right parietal activity major contribution parietal cortical function major language area ventral part positron emission tomography somatosensory control irrespective left parietal lobe memory process parietal contribution amodal central role single grapheme normal subject activity compatible parietal area repetitive reproduction
