I unfortunately did not find the featured article/accompanying picture in this week’s Journal of Neuroscience as interesting as this one: Nuture versus Nature: Long-Term Impact of Forced Right-Handedness on Structure of Pericentral Cortexand Basal Ganglia  by a collaborative group of European neuroscientists. I immediately sent this article to my uncle, who was coerced by his mother to be left-handed, stating that is would make my uncle “unique and well-liked” (I doubt that there is any scientific literature to support this claim). Regardless, these researchers observed that though humans are innately endowed with a handedness originating from a greater distribution of cortical matter within either the right (left-handers) or left (right-handers) premotor cortex, lying near the central sulcus, this unequal distribution can be modified after birth through deliberate ResearchBlogging.orgpractice, and leads to either an equal contribution of both left and right premotor areas (ambidextrous), or a cortical imbalance that favors the other hand. I’m not certain whether handedness is inherited, though I imagine genes that guide embryonic cortical development have some role, but at least this information is good for future parenting (i.e. parents like me who aspire to have children that are professional football players ).

Stefan Klo¨ppel, Jean-Francois Mangin, Anna Vongerichten, Richard S. J. Frackowiak,and Hartwig R. Siebner (2010). Nuture versus Nature: Long-Term Impact of Forced Right-Handedness on Structure of Pericentral Cortexand Basal Ganglia Journal of Neuroscience, 30 (9), 3271-3275 : 10.1523/JNEUROSCI.4394-09.2010