<P> Language is primarily localized in the left hemisphere . One of the experiments carried out by Gazzaniga involved a split - brain patient sitting in front of a computer screen while having words and images presented on either side of the screen and the visual stimuli would go to either the right or left visual field, and thus the left or right brain, respectively . It was observed that if a patient was presented with an image to his left visual field (right brain), he would report not seeing anything . If he was able to feel around for certain objects, he could accurately pick out the correct object, despite not having the ability to verbalize what he saw . This led to confirmation that the left brain is localized for language while the right brain does not have this capability, and when the corpus callosum is cut and the two hemispheres cannot communicate for the speech to be produced . </P> <P> Some popularizations oversimplify the science about lateralization, by presenting the functional differences between hemispheres as being more absolute than is actually the case . </P> <P> In the 19th century and to a lesser extent the 20th, it was thought that each side of the brain was associated with a specific gender: the left corresponding with masculinity and the right with femininity and each half could function independently . The right side of the brain was seen as the inferior and thought to be prominent in women, savages, children, criminals, and the insane . A prime example of this in fictional literature can be seen in Robert Louis Stevenson's Strange Case of Dr. Jekyll and Mr. Hyde . </P> <P> Significant differences between male and female hemispheric rivalry and dominance have been established . Male brains have significantly better global and rivalry efficiency between the hemispheres, whereas female brains possess considerably better local efficiency within the RHS . </P>

What is the right side of the brain associated with