Fig. 4. Angular ranges and central positions for the horizontal and vertical components in both antennae and head. Bars and symbols indicate the mean angular ranges and central positions, respectively (N=10). Working ranges for antennal horizontal and head yaw components decreased, respectively, by about 25–30° and 15° during walking, but were not largely changed for antennal vertical and head pitch component s. Vertical central positions for both antennae were lowered by 15–25° during walking. R, right; L, left.