Fig. 4: Overview of our TMS experiment in parabolic flight.

a This diagram describes how the in-flight data collection was conducted. Each team had a computer operator, TMS operator, and a participant. Participants were rotated every 5 parabolas during level flight and received TMS using custom fabricated helmets that fix the TMS coil to the scalp. All TMS and EMG equipment was strapped to the floor of the airplane ahead of the computer operator and plugged into the airplane power circuit. b Parabolic flight simulates zero gravity by flying parabolas that alternate fliers between 1.8G and 0G. We administered TMS only during the 30 0G portions which each lasted approximately 20 seconds.