Affiliation:
1. Nagoya University, Japan
Abstract
Eye movements have been studied in a Japanese Spacelab payload specialist carrying out a visual task on earth (1g gravity) before and after a space flight. The experiment was repeated in space (microgravity) using the same subject. In addition to eye movements, EMG activity of the trapezius muscle was recorded while performing the visual task in space. Results show that eye movements are not affected by variations in gravity. The EMG activity of the trapezius muscle recorded during the visual task in space was found to depart from the EMG activity such as present under everyday conditions on earth.