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Functional organization of human intraparietal and frontal cortex for attending, looking, and pointing.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Essen, David C. Van Corbetta, Maurizio |
| Copyright Year | 2003 |
| Abstract | We studied the functional organization of human posterior parietal and frontal cortex using functional magnetic resonance imaging (fMRI) to map preparatory signals for attending, looking, and pointing to a peripheral visual location. The human frontal eye field and two separate regions in the intraparietal sulcus were similarly recruited in all conditions, suggesting an attentional role that generalizes across response effectors. However, the preparation of a pointing movement selectively activated a different group of regions, suggesting a stronger role in motor planning. These regions were lateralized to the left hemisphere, activated by preparation of movements of either hand, and included the inferior and superior parietal lobule, precuneus, and posterior superior temporal sulcus, plus the dorsal premotor and anterior cingulate cortex anteriorly. Surface-based registration of macaque cortical areas onto the map of fMRI responses suggests a relatively good spatial correspondence between human and macaque parietal areas. In contrast, large interspecies differences were noted in the topography of frontal areas. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://brainmap.wustl.edu/resources/Astafiev_03.JN.pdf |
| Alternate Webpage(s) | http://brainvis.wustl.edu/resources/Astafiev_03.JN.pdf |
| Alternate Webpage(s) | http://www.jneurosci.org/content/jneuro/23/11/4689.full.pdf |
| Alternate Webpage(s) | http://invibe.net/biblio_database_dyva/woda/data/att/5a93.file.pdf |
| PubMed reference number | 12805308v1 |
| Volume Number | 23 |
| Issue Number | 11 |
| Journal | The Journal of neuroscience : the official journal of the Society for Neuroscience |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Cingulate Cortex Groove Lobule Macaca Movement Peripheral Neuropathy Structure of intraparietal sulcus Structure of precuneus Structure of superior temporal sulcus fMRI frontal lobe |
| Content Type | Text |
| Resource Type | Article |
