The original finding aid described this as: Description: STS-90 mission specialist James Pawelczyk monitors the Lower Body Negative Pressure (LBNP) OPS for the Autonomic Nervous System Team. The test subject is mission specialist Dafydd Rhys Williams. Attached to his head is the Transcranial Doppler System (TDS) hardware. View was taken in the Spacelab module during flight day 13 of the Neurolab mission. Subject Terms: LOWER BODY NEGATIVE PRESSURE, SPACEBORNE EXPERIMENTS, BIOMEDICAL DATA, CARDIOVASCULAR SYSTEM, ASTRONAUTS, ONBOARD ACTIVITIES, SPACELAB, STS-90, COLUMBIA (ORBITER) Date Taken: 4/29/1998 Categories: Experiment (Medical) Interior_Exterior: Interior Ground_Orbit: On-orbit Original: Digital Still Preservation File Format: TIFF.