STS-60 mission specialist Sergei Krikalev wears the Voluntary Head Movement (VHM) and Optokinetic Nystagmus (OKN) instrumentation vest with helmet, goggles, neurosensory experiment cap, and superpocket remote control in preparation for performing DSO 201 - Sensory Motor investigations as part of the Joint U.S.-Russian Investigations. Beside him is mission specialist Ronald Sega. These images were taken on the Discovery's middeck.
