Sperry (1968)

• Procedure

  • 11 split-brain individuals shown an image to left or right visual field
  • LVF info processes in right hemisphere, RVF processed In left
  • Info cannot be conveyed to other side due to corpus callosum severation
• Findings

  • When object shown in RVF, patient could describe what they saw, couldn't when shown in LVF
  • However, they could pick up a similar-feeling object
  • Pinup picture shown to LVF, emotional reaction (giggle) but patients usually just reported seeing a flash of light
• Conclusion

  • There is lateralisation of function
  • Left hemisphere - verbal
  • Right hemisphere - silent and emotional
  • Each hemisphere has its own perceptions, memories and experiences