Abstract
Calculation is not a unitary cognitive function. Instead, it is supported by multiple and interrelated neurocognitive components subserved by functional brain networks. In this review, we first address the roles of particular cognitive components in supporting number processing that have been highlighted by previous neuropsychological case reports of isolated acalculia or dissociable calculation deficits. Second, the clinical importance of dissociation of exact/approximate calculation is emphasized. Our patient with global aphasia caused by a large left-hemisphere lesion1 presented with well-preserved approximate calculation, despite severely impaired exact calculation, thereby indicating that dissociable neurocognitive mechanisms may underlie different calculation abilities. Lastly, based on recent functional neuroimaging studies, we propose that calculation is subserved by a wide range of brain networks, including the left parietal lobe and left frontal lobe, as well as the right cerebral hemisphere.
| Original language | English |
|---|---|
| Pages (from-to) | 27-32 |
| Number of pages | 6 |
| Journal | European Neurological Journal |
| Volume | 4 |
| Issue number | 1 |
| Publication status | Published - 2012 |
| Externally published | Yes |
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Keywords
- Acalculia
- Components of arithmetic
- Neuroimaging study
- Numerical processing
ASJC Scopus subject areas
- Clinical Neurology
- Neurology
Cite this
Plural information processing and a large neural network are necessary for numerical processing. / Urano, Masayo; Anamizu, Sachiko; Mimura, Masaru.
In: European Neurological Journal, Vol. 4, No. 1, 2012, p. 27-32.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Plural information processing and a large neural network are necessary for numerical processing
AU - Urano, Masayo
AU - Anamizu, Sachiko
AU - Mimura, Masaru
PY - 2012
Y1 - 2012
N2 - Calculation is not a unitary cognitive function. Instead, it is supported by multiple and interrelated neurocognitive components subserved by functional brain networks. In this review, we first address the roles of particular cognitive components in supporting number processing that have been highlighted by previous neuropsychological case reports of isolated acalculia or dissociable calculation deficits. Second, the clinical importance of dissociation of exact/approximate calculation is emphasized. Our patient with global aphasia caused by a large left-hemisphere lesion1 presented with well-preserved approximate calculation, despite severely impaired exact calculation, thereby indicating that dissociable neurocognitive mechanisms may underlie different calculation abilities. Lastly, based on recent functional neuroimaging studies, we propose that calculation is subserved by a wide range of brain networks, including the left parietal lobe and left frontal lobe, as well as the right cerebral hemisphere.
AB - Calculation is not a unitary cognitive function. Instead, it is supported by multiple and interrelated neurocognitive components subserved by functional brain networks. In this review, we first address the roles of particular cognitive components in supporting number processing that have been highlighted by previous neuropsychological case reports of isolated acalculia or dissociable calculation deficits. Second, the clinical importance of dissociation of exact/approximate calculation is emphasized. Our patient with global aphasia caused by a large left-hemisphere lesion1 presented with well-preserved approximate calculation, despite severely impaired exact calculation, thereby indicating that dissociable neurocognitive mechanisms may underlie different calculation abilities. Lastly, based on recent functional neuroimaging studies, we propose that calculation is subserved by a wide range of brain networks, including the left parietal lobe and left frontal lobe, as well as the right cerebral hemisphere.
KW - Acalculia
KW - Components of arithmetic
KW - Neuroimaging study
KW - Numerical processing
UR - http://www.scopus.com/inward/record.url?scp=84871337623&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871337623&partnerID=8YFLogxK
M3 - Article
VL - 4
SP - 27
EP - 32
JO - European Neurological Journal
JF - European Neurological Journal
SN - 2041-8000
IS - 1
ER -