dc.contributor.author | Semenza, C. | |
dc.contributor.author | Salillas, E. | |
dc.contributor.author | De Pallegrin, S. | |
dc.contributor.author | Della Puppa, A. | |
dc.date.accessioned | 2017-11-27T11:49:30Z | |
dc.date.available | 2017-11-27T11:49:30Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | C. Semenza, E. Salillas, S. De Pallegrin, A. Della Puppa; Balancing the 2 Hemispheres in Simple Calculation: Evidence From Direct Cortical Electrostimulation, Cerebral Cortex, Volume 27, Issue 10, 1 October 2017, Pages 4806–4814, https://doi.org/10.1093/cercor/bhw277 | es_ES |
dc.identifier.issn | 1047-3211 | |
dc.identifier.uri | http://hdl.handle.net/10810/23766 | |
dc.description | Published: 24 September 2016 | es_ES |
dc.description.abstract | How do the parietal lobes contribute to simple calculation? Clinical and neuroimaging methods, which are based mainly on
correlational evidence, have provided contrasting results so far. Here we used direct cortical electrostimulation during brain
surgery to causally infer the role of the left and right parietal lobes in simple calculation. Stimulation provoked errors for
addition and multiplication in different parietal areas on both hemispheres. Crucially, an innovative qualitative error
analysis unveiled the functional contrast of the 2 parietal lobes. Right or left stimulation led to different types of
substitution errors in multiplication, unveiling the function of the more active hemisphere. While inhibition of the left
hemisphere led mainly to approximation errors, right hemisphere inhibition enhanced retrieval within a stored repertory.
These results highlight the respective roles of each hemisphere in the network: rote retrieval of possible solutions by the left
parietal areas and approximation to the correct solution by the right hemisphere. The bilateral orchestration between these
functions guarantees precise calculation. | es_ES |
dc.description.sponsorship | This work was supported by the Italian Ministry of Health
(grant RF-2009-1530973); by the University of Padua (Grant
Progetto d’Ateneo CPDA131328 and Progetto strategico
NEURAT) to C.S., and by the Spanish Ministry of Science and
Innovation (grant PSI2014-53351) to E.S. and by financial assistance
as a Severo Ochoa Center of Excellence SEV-2015-0490 to
the BCBL (E.S.). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Cerebral Cortex | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/PSI2014-53351 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/SEV-2015-0490 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | approximation | es_ES |
dc.subject | brain mapping | es_ES |
dc.subject | exact calculation | es_ES |
dc.subject | hemispheric complementarity | es_ES |
dc.subject | parietal lobe | es_ES |
dc.title | Balancing the 2 Hemispheres in Simple Calculation: Evidence From Direct Cortical Electrostimulation | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com | es_ES |
dc.relation.publisherversion | https://academic.oup.com/cercor | es_ES |
dc.identifier.doi | 10.1093/cercor/bhw277 | |