split brain research

• L: the sample of split brain patients in these studies is small, participants were compared against non epileptics, had varying amounts of connection cut and all undergone drug therapy, the control group used by Sperry also were healthy w/ no history of fits, suggesting that some of the results may have been due to participant variables making the results ungeneralisable to the wider population
• L: the experimental procedure used in split brain patients is unlike how these individuals would process information and act in normal day to day life, in reality these people led mostly normal lives moving their head from side to side and using other cues to pass on information to both hemispheres resulting in low external validity
• S: research on split brain patients has had a fundamental impact on the psychological and philosophical understanding of both the unity of consciousness and identity, suggesting that the brain is a combination of separate intelligent processes working together