split brain

• P: Gazzaniga suggests that some of the early discoveries from split-brain research have been disconfirmed by more recent discoveries

  E: damage to the left hemisphere was found to be far more detrimental to language function than was damage to the right. however, case studies have demonstrated that this was not the case. one patient, JW developed the capacity to speak out of the right hemisphere

  L: this challenges that the right hemisphere is unable to handle language
• P: the split brain procedure is rarely carried out nowadays, and andrewes points out that many studies are presented with as few as three participants or even just the one single participant

  E: andrewes claims that, conclusions have been drawn from individuals who either have a confounding physical disorder that made split brain procedure necessary, or had a less complete sectioning of the 2 hemipsheres

  L: as a result, patients who had this procedure without these confounding factors are rarely encountered in sufficient numbers to be useful for research