000129510 001__ 129510
000129510 005__ 20241125101149.0
000129510 0247_ $$2doi$$a10.3389/fnhum.2023.1288154
000129510 0248_ $$2sideral$$a135714
000129510 037__ $$aART-2023-135714
000129510 041__ $$aita
000129510 100__ $$0(orcid)0000-0002-0873-5357$$aSalillas, Elena$$uUniversidad de Zaragoza
000129510 245__ $$aThe brain lateralization and development of math functions: progress since Sperry, 1974
000129510 260__ $$c2023
000129510 5060_ $$aAccess copy available to the general public$$fUnrestricted
000129510 5203_ $$aIn 1974, Roger Sperry, based on his seminal studies on the split-brain condition, concluded that math was almost exclusively sustained by the language dominant left hemisphere. The right hemisphere could perform additions up to sums less than 20, the only exception to a complete left hemisphere dominance. Studies on lateralized focal lesions came to a similar conclusion, except for written complex calculation, where spatial abilities are needed to display digits in the right location according to the specific requirements of calculation procedures. Fifty years later, the contribution of new theoretical and instrumental tools lead to a much more complex picture, whereby, while left hemisphere dominance for math in the right-handed is confirmed for most functions, several math related tasks seem to be carried out in the right hemisphere. The developmental trajectory in the lateralization of math functions has also been clarified. This corpus of knowledge is reviewed here. The right hemisphere does not simply offer its support when calculation requires generic space processing, but its role can be very specific. For example, the right parietal lobe seems to store the operation-specific spatial layout required for complex arithmetical procedures and areas like the right insula are necessary in parsing complex numbers containing zero. Evidence is found for a complex orchestration between the two hemispheres even for simple tasks: each hemisphere has its specific role, concurring to the correct result. As for development, data point to right dominance for basic numerical processes. The picture that emerges at school age is a bilateral pattern with a significantly greater involvement of the right-hemisphere, particularly in non-symbolic tasks. The intraparietal sulcus shows a left hemisphere preponderance in response to symbolic stimuli at this age.
000129510 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000129510 590__ $$a2.4$$b2023
000129510 592__ $$a0.787$$b2023
000129510 591__ $$aPSYCHOLOGY$$b36 / 92 = 0.391$$c2023$$dQ2$$eT2
000129510 593__ $$aBehavioral Neuroscience$$c2023$$dQ2
000129510 591__ $$aNEUROSCIENCES$$b195 / 310 = 0.629$$c2023$$dQ3$$eT2
000129510 593__ $$aNeurology$$c2023$$dQ2
000129510 593__ $$aPsychiatry and Mental Health$$c2023$$dQ2
000129510 593__ $$aNeuropsychology and Physiological Psychology$$c2023$$dQ2
000129510 593__ $$aBiological Psychiatry$$c2023$$dQ3
000129510 594__ $$a4.7$$b2023
000129510 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000129510 700__ $$aBenavides-Varela, Silvia
000129510 700__ $$aSemenza, Carlo
000129510 7102_ $$14009$$2730$$aUniversidad de Zaragoza$$bDpto. Psicología y Sociología$$cÁrea Psicología Básica
000129510 773__ $$g17 (2023), 1288154 [13 pp.]$$pFrontiers in Human Neuroscience$$tFrontiers in Human Neuroscience$$x1662-5161
000129510 8564_ $$s1149729$$uhttps://zaguan.unizar.es/record/129510/files/texto_completo.pdf$$yVersión publicada
000129510 8564_ $$s2243202$$uhttps://zaguan.unizar.es/record/129510/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000129510 909CO $$ooai:zaguan.unizar.es:129510$$particulos$$pdriver
000129510 951__ $$a2024-11-22-12:05:58
000129510 980__ $$aARTICLE