One commonly held idea is that it is possible to know for certain whether a child is left-handed or not once he or she starts writing. However, scientific studies show that left-handedness actually develops much earlier to in primary school. In fact, it actually develops before we are...
Annett (see record 1996-19164-001) on the right shift theory of handedness and the genetic polymorphism for cerebral dominance and cognitive processing. Steinmetz discusses several postmortem and imaging studies that support Annett's discussion of another level of analysis of her theory, namely the ...