• utricular
  • The amplitude of the compensatory bias slow phase eye velocity was the largest when the gravitational vector rotated in a plane between the animals' stereotaxic horizontal and presumed utricular planes. (nii.ac.jp)
  • The phase of the modulation in yaw (horizontal) slow phase velocity, but not in eye position, tended to lag as the stimulus axis deviated from the normal to the presumed utricular plane. (nii.ac.jp)
  • gravity
  • It primarily gathers information about linear movement in the vertical plane, including the force due to gravity. (wikipedia.org)
  • sensitivity
  • Research has shown, like songbirds, females in some species of fish show seasonal variation in auditory processing and the sensitivity of the saccule of females peaks during the breeding season. (wikipedia.org)
  • head
  • The utricle contains mechanoreceptors called hair cells that distinguish between degrees of tilting of the head, thanks to their apical stereocilia set-up. (wikipedia.org)
  • Any orientation of the head causes a combination of stimulation to the utricles and saccules of the two ears. (wikipedia.org)
  • The saccule senses up/down motion, to/fro motion, and static pitch of the head. (seattledizzygroup.org)
  • The saccule translates head movements into neural impulses which the brain can interpret. (wikipedia.org)
  • The saccule, like the utricle, provides information to the brain about head position when it is not moving. (wikipedia.org)
  • Movement of fluid within this canal corresponds to rotation of the head around a vertical axis (i.e. the neck), or in other words rotation in the transverse plane. (wikipedia.org)
  • This push-pull system makes it possible to sense all directions of rotation: while the right horizontal canal gets stimulated during head rotations to the right (Fig 2), the left horizontal canal gets stimulated (and thus predominantly signals) by head rotations to the left. (wikipedia.org)
  • The animals were rotated in darkness at 60°/s about an earth horizontal axis while placed in a pitched position relative to the rotation axis, so that the plane in which the gravitational vector rotated around the head was varied while the acceleration applied along the inter-aural axis remained identical across different pitch conditions. (nii.ac.jp)
  • opens
  • From the lower part of the saccule a short tube, the canalis reuniens of Hensen, passes downward and opens into the ductus cochlearis near its vestibular extremity. (wikipedia.org)
  • At the base of each canal, the bony region of the canal is enlarged which opens into the utricle and has a dilated sac at one end called the osseous ampullae. (wikipedia.org)
  • rotation
  • Any rotation in that plane is excitatory to one of the members of the pair and inhibitory to the other. (medscape.com)
  • Constant velocity vertical on-axis rotation leads to decay of the nystagmus response from the horizontal SCC and of perceived angular velocity (PAV), and when the rotation stops, a similar oppositely directed post-rotatory response occurs. (readbyqxmd.com)
  • motion
  • Each canal is maximally responsive to angular motion in the plane in which it is situated and is paired with a canal on the contralateral side so that stimuli that are excitatory to one are inhibitory to the other. (medscape.com)
  • In fact, most vestibular functions are imperceptible, but vestibular-related sensations such as motion sickness can pop up rapidly when riding on a roller coaster, having a bumpy plane ride, or a sailing a boat in rough seas. (nobaproject.com)