split brain research

• What are the two hemispheres of the brain called?

  Left and right hemispheres
• What happens if the connection between the left and right hemispheres is cut?

  It stops communication between each hemisphere
• What is the name of the connection between the left and right hemispheres?

  Corpus callosum
• How many nerve fibers are in the corpus callosum?

  200 to 300 million nerve fibers
• What is the function of the right side of the brain?

  It deals with visual information from the left visual field
• Where are the language centers located in the brain?

  Only in the left side of the brain
• What was the purpose of cutting the corpus callosum in patients?

  To stop electrical seizures from bouncing between the hemispheres
• What condition did patients report after the corpus callosum was cut?

  A strange sense of being two people in one body
• Who conducted research on split brain patients in 1969?

  Sperry
• What was the method used in Sperry's divided field experiment?

  Participants looked at a dot on a screen while words or images were flashed to either visual field
• What could split brain patients do when shown the word "key" in their right visual field?

  They could say "key" because it was processed in the left hemisphere
• What could split brain patients do when shown the word "saw" in their left visual field?

  They could not say "saw" but could draw it with their left hand
• What did Sperry's research reveal about the right hemisphere's capabilities?

  The right hemisphere is better at recognizing faces
• What are some criticisms of Sperry's research using split brain patients?

  • Small sample size limits generalizability
  • Comparison group not representative
  • Variability in disconnection levels among patients
  • Influence of prior drug therapy on results
  • Lack of mundane realism in experimental conditions
• What is the overriding positive of Sperry's research?

  It enhances our understanding of consciousness and the self
• What extreme condition can result from split brain surgery?

  Alien hand syndrome
• What is alien hand syndrome?

  One hand acts independently and can seem to fight against the other hand
• How does the film "Dr. Strangelove" relate to alien hand syndrome?

  It depicts a character whose hand acts against his will
• What are the implications of Sperry's research on our understanding of the mind?

  • Suggests consciousness may not be a unified self
  • Proposes a collection of separate intelligent processes
  • Influences both psychological and philosophical perspectives
• What degree did the speaker mention they completed?

  A combined psychology and philosophy degree
• How does the speaker feel about Sperry's study?

  They consider it one of their favorite psychological studies
• What does the speaker encourage viewers to do at the end of the video?

  Subscribe and like the channel