key studies

• Sperry and Gazzaniga (1967)

  • split brain research
  • describe what you can see, tactile test, drawing task
  • concluded that there are differences between the two hemispheres
  • left hemisphere dominant in speech and language
  • right hemisphere dominant in visual-motor tasks
• Siffre (1975)

  • absence of external cues for circadian rhythms
  • lived in a dark cave
  • changed his circadian rhythms
• Morgan (1955)

  • bred hamsters to have circadian rhythms of 20 hours
  • conclusion: EP's are important for circadian rhythms