Editing Split-brain (section)

=== Memory ===
It is known that the right and the left hemisphere have different functions when it comes to memory.<ref>{{Cite web |title=Anatomy of the Brain |url=https://mayfieldclinic.com/pe-anatbrain.htm |website=Mayfield Clinic}}</ref> The right hemisphere is better at recognizing objects and faces, recalling knowledge that the individual has already learned, or recalling 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.<ref name="Metcalfe 1995 157–164">{{cite journal |last1=Metcalfe |first1=Janet |first2=Margaret |last2=Funnell |first3=Michael |last3=Gazzanuga |title=Right-Hemisphere Memory Superiority:Studies of Split-brain Patient|journal=Psychological Science|year=1995|volume=6|issue=3|pages=157–164|doi=10.1111/j.1467-9280.1995.tb00325.x|jstor=40063008|s2cid=3187008}}</ref> 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.<ref name="Metcalfe 1995 157–164"/>

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 standardized free-field testing) involving recognition.<ref>{{cite book |vauthors=Tramo MJ, Baynes K, Fendrich R, Mangun GR, Phelps EA, Reuter-Lorenz PA, Gazzaniga MS |year=1995 |contribution=Hemispheric specialization and interhemispheric integration: Insights from experiments with commissurotomy patients |title=Epilepsy and the Corpus Callosum |volume=2 |veditors=Reeves AG, Roberts DW |location=New York |publisher=Plenum |pages=263–295}}</ref> This makes first-person accounts hard to consider and to assess as scientists don't know if the consciousness was split as well.<ref name=":02">{{Cite web |title=APA PsycNet |url=https://psycnet.apa.org/record/2020-32923-001 |access-date=2023-10-10 |website=psycnet.apa.org |language=en}}</ref>