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Type:
Educational Exhibit
Keywords:
Education and training, eLearning, Education, Computer Applications-General, MR-Functional imaging, MR, CT, Neuroradiology brain, CNS, Anatomy
Authors:
E. P. Oliveira, E. Feitosa, G. SANTOS, E. SILVA, R. PINCERATO, L. PORTELA; São Paulo/BR
DOI:
10.1594/ecr2016/C-1559
Conclusion
We reviewed a variety of studies assessing asymmetries in brain structure and function.
The gross anatomy and functional layout of the brain are organized asymmetrically,
with hemispheric specializations for key aspects of language and motor function. The early mechanism that underlies this process remains poorly understood.
The Yakovlevian anticlockwise torque and petalia show a geometric distortion of the brain hemispheres.
The perisylvian region and language area display pronounced leftward asymmetry in most humans.
Preferential use of right hand is associated with greater cortical folding and gyrification within the motor-hand area of the dominant side.
Disturbances in hemispheric lateralization have been reported for a number of psychiatric conditions.
Some cortical malformations present with frank laterality.
Development of new modalities and the use of advanced MRI techniques provide new perspectives in the comprehension of brain lateralization.