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Caption
Photo: Esteban Villar-Rodríguez and César Ávila.
The Neuropsychology and Functional Neuroimaging Group at the Universitat Jaume I in Castellón, led by researcher César Ávila, recently published an article in the eLife journal providing evidence that language and inhibitory function (typically lateralised in the right hemisphere) are programmed to be located in different hemispheres. It also supports the hypothesis that has linked the presence of atypical brain lateralization with some neurodevelopmental disorders such as schizophrenia, dyslexia, or the autistic spectrum.
The study aimed to understand how inhibitory function (the ability to control certain impulses or automatic responses and adjust them to better fit the situation) is organised in these atypical left-handers with language in the right hemisphere. The results reveal that, in these individuals, the left hemisphere takes over inhibitory function, contrary to the norm. This phenomenon extends beyond the cerebral cortices, involving both subcortical circuits and connectivity between hemispheres through the corpus callosum (with greater white matter).
Credit
Universitat Jaume I of Castellón
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