Differential Contributions of the Left and Right Inferior Parietal Lobules to Number Processing
نویسندگان
چکیده
منابع مشابه
Differential contributions of the left and right inferior parietal lobules to number processing.
We measured cerebral activation with functional magnetic resonance imaging at 3 Tesla while eight healthy volunteers performed various number processing tasks known to be dissociable in brain-lesioned patients: naming, comparing, multiplying, or subtracting single digits. The results revealed the activation of a circuit comprising bilateral intraparietal, prefrontal, and anterior cingulate comp...
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Neuropsychological and functional imaging studies have associated the conceptual processing of numbers with bilateral parietal regions (including intraparietal sulcus). However, the processes driving these effects remain unclear because both left and right posterior parietal regions are activated by many other conceptual, perceptual, attention, and response-selection processes. To dissociate pa...
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The current understanding of hemispheric interaction is limited. Functional hemispheric specialization is likely to depend on both genetic and environmental factors. In the present study we investigated the importance of one factor, literacy, for the functional lateralization in the inferior parietal cortex in two independent samples of literate and illiterate subjects. The results show that th...
متن کاملThe differential involvement of inferior parietal lobule in number comparison: a rTMS study.
Number processing is known to involve several sites within the posterior regions of parietal cortex. Here, we investigated whether neural activity in the inferior parietal lobule (IPL) is essential for number processing, by observing the effects of interfering with its activity during the execution of a standard number comparison task. Subjects performance on the task was significantly slowed d...
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ژورنال
عنوان ژورنال: Journal of Cognitive Neuroscience
سال: 1999
ISSN: 0898-929X,1530-8898
DOI: 10.1162/089892999563689