Fig. 7.
A: Averaged splanchnic nerve responses to 15° head rotations in vertical planes. The rotations were delivered at 0.2 Hz; in the left diagram the head was rotated in the clockwise direction, and in the right diagram the head rotations were in the counterclockwise direction. During both stimuli, maximal nerve activity occurred during nose-up head rotations. B: Polar diagram of vestibular vector orientations for splanchnic nerve responses to vestibular stimulation. The position of a symbol indicates the direction of tilt that produced maximal sympathetic nerve activity. Abbreviations: CED, contralateral ear down tilt; IED, ipsilateral ear down tilt; ND, nose down tilt; NU, nose up tilt. Adapted from (327), with permission.