Brain asymmetry

In human neuroanatomy brain asymmetry can refer to at least two quite distinct findings:


 * Neuroanatomical differences between the left and right sides of the brain
 * Lateralized functional differences: Lateralization of brain function

Neuroanatomical differences themselves exist on different scales, from neuronal densities, to the size of regions such as the planum temporale, to&mdash;at the largest scale&mdash;the torsion or "wind" in the human brain, reflected shape of the skull, which reflects a backward (posterior) protrusion of the left occipital bone and a forward (anterior) protrusion of the right frontal bone.