Salk Associate Professor Sreekanth Chalasani addressed a full house in the Conrad Prebys Auditorium with his talk “Fear…Prozac and worms” at the March 22 Back to Basics lecture. Chalasani spoke about his lab’s research with roundworms to explain how humans have evolved to cope with fear and anxiety. The Back to Basics program offers lay science lectures to the public twice a year. The next lecture will be on September 20, 2017.o the public twice a year. The next lecture will be on September 20, 2017.