challenge: What was the title of Terje Sagvolden's PhD thesis, which he obtained in 1979 from the University of Oslo?
  
  A. Behavioral Changes in Rats with Hippocampal Lesions: Effects of Food-Deprivation Level and Intensity of Electrical Shocks
  B. Behavioral Changes in Rats with Amygdala Lesions: Effects of Sensory Deprivation and Reward Schedules
  C. Behavioral Changes in Rats with Cortical Lesions: Effects of Environmental Enrichment and Social Interaction
  D. Behavioral Changes in Rats with Septal Lesions: Effects of Water-Deprivation Level and Intensity of Electrical Shocks
  Answer: 