<P> It is known that the right and the left hemisphere have different functions when it comes to memory . The right hemisphere is better at being able to recognise objects and faces, recall knowledge that the individual has already learned, or recall images already seen . The left hemisphere is better at mental manipulation, language production, and semantic priming but was more susceptible to memory confusion than the right hemisphere . The main issue for individuals that have undergone a callosotomy is that because the function of memory is split into two major systems, the individual is more likely to become confused between knowledge they already know and information that they have only inferred . </P> <P> In tests, memory in either hemisphere of split - brained patients is generally lower than normal, though better than in patients with amnesia, suggesting that the forebrain commissures are important for the formation of some kinds of memory . This suggests that posterior callosal sections that include the hippocampal commissures cause a mild memory deficit (in standardised free - field testing) involving recognition . </P> <P> In general, split - brained patients behave in a coordinated, purposeful and consistent manner, despite the independent, parallel, usually different and occasionally conflicting processing of the same information from the environment by the two disconnected hemispheres . When two hemispheres receive competing stimuli at the same time, the response mode tends to determine which hemisphere controls behaviour . </P> <P> Often, split - brained patients are indistinguishable from normal adults . This is due to the compensatory phenomena; split - brained patients progressively acquire a variety of strategies to get around their interhemispheric transfer deficits . One issue that can happen with their body control is that one side of the body is doing the opposite of the other side called the intermanual effect . </P>

Which is the most likely outcome for a patient with a severed corpus callosum