A review on functional and structural brain connectivity in numerical cognition
Only recently has the complex anatomo-functional system underlying numerical cognition become accessible to evaluation in the living brain. We identified 26 studies investigating brain connectivity in numerical cognition. Despite considerable heterogeneity regarding methodological approaches, popula...
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doaj-038eb358ded94460a13e7de62db888fd2020-11-25T02:54:04ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612015-05-01910.3389/fnhum.2015.0022797967A review on functional and structural brain connectivity in numerical cognitionKorbinian eMoeller0Klaus F Willmes - von Hinckeldey1Elise eKlein2Knowledge Media Research CenterRWTH Aachen UniversityKnowledge Media Research CenterOnly recently has the complex anatomo-functional system underlying numerical cognition become accessible to evaluation in the living brain. We identified 26 studies investigating brain connectivity in numerical cognition. Despite considerable heterogeneity regarding methodological approaches, populations investigated, and assessment procedures implemented, the results provided largely converging evidence regarding the underlying brain connectivity involved in numerical cognition. Analyses of both functional/effective as well as structural connectivity have consistently corroborated the assumption that numerical cognition is subserved by a fronto-parietal network including (intra)parietal as well as (pre)frontal cortex sites. Evaluation of structural connectivity has indicated the involvement of fronto-parietal association fibers encompassing the superior longitudinal fasciculus dorsally and the external capsule/extreme capsule system ventrally. Additionally, commissural fibers seem to connect the bilateral intraparietal sulci when number magnitude information is processed. Finally, the identification of projection fibers such as the superior corona radiata indicates connections between cortex and basal ganglia as well as the thalamus in numerical cognition. Studies on functional/effective connectivity further indicated a specific role of the hippocampus. These specifications of brain connectivity augment the triple-code model of number processing and calculation with respect to how grey matter areas associated with specific number-related representations may work together.http://journal.frontiersin.org/Journal/10.3389/fnhum.2015.00227/fullDTINumerical cognitionbrain connectivityWhite matter pathwaysfronto-parietal network |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Korbinian eMoeller Klaus F Willmes - von Hinckeldey Elise eKlein |
spellingShingle |
Korbinian eMoeller Klaus F Willmes - von Hinckeldey Elise eKlein A review on functional and structural brain connectivity in numerical cognition Frontiers in Human Neuroscience DTI Numerical cognition brain connectivity White matter pathways fronto-parietal network |
author_facet |
Korbinian eMoeller Klaus F Willmes - von Hinckeldey Elise eKlein |
author_sort |
Korbinian eMoeller |
title |
A review on functional and structural brain connectivity in numerical cognition |
title_short |
A review on functional and structural brain connectivity in numerical cognition |
title_full |
A review on functional and structural brain connectivity in numerical cognition |
title_fullStr |
A review on functional and structural brain connectivity in numerical cognition |
title_full_unstemmed |
A review on functional and structural brain connectivity in numerical cognition |
title_sort |
review on functional and structural brain connectivity in numerical cognition |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Human Neuroscience |
issn |
1662-5161 |
publishDate |
2015-05-01 |
description |
Only recently has the complex anatomo-functional system underlying numerical cognition become accessible to evaluation in the living brain. We identified 26 studies investigating brain connectivity in numerical cognition. Despite considerable heterogeneity regarding methodological approaches, populations investigated, and assessment procedures implemented, the results provided largely converging evidence regarding the underlying brain connectivity involved in numerical cognition. Analyses of both functional/effective as well as structural connectivity have consistently corroborated the assumption that numerical cognition is subserved by a fronto-parietal network including (intra)parietal as well as (pre)frontal cortex sites. Evaluation of structural connectivity has indicated the involvement of fronto-parietal association fibers encompassing the superior longitudinal fasciculus dorsally and the external capsule/extreme capsule system ventrally. Additionally, commissural fibers seem to connect the bilateral intraparietal sulci when number magnitude information is processed. Finally, the identification of projection fibers such as the superior corona radiata indicates connections between cortex and basal ganglia as well as the thalamus in numerical cognition. Studies on functional/effective connectivity further indicated a specific role of the hippocampus. These specifications of brain connectivity augment the triple-code model of number processing and calculation with respect to how grey matter areas associated with specific number-related representations may work together. |
topic |
DTI Numerical cognition brain connectivity White matter pathways fronto-parietal network |
url |
http://journal.frontiersin.org/Journal/10.3389/fnhum.2015.00227/full |
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