TY - JOUR
T1 - Saccular impact on ocular torsion
AU - De Graaf, Bernd
AU - Bos, Jelte E.
AU - Groen, Eric
PY - 1996
Y1 - 1996
N2 - When someone is tilted laterally, the shear force on the maculae of the utriculus and the sacculus is described by the sine and the cosine of the angle of tilt, respectively. So both the sacculus and the utriculus are stimulated, but in the literature, ocular torsion is normally attributed to utricular function alone (and, thus, seen as a response to y-axis linear acceleration). However, on the base of a series of experiments on a tilt chair, a linear track, human centrifuges, and during parabolic flights, we conclude that the sacculus contributes to ocular torsion as well (there is a response to z-axis linear acceleration). The data suggest that the ratio of the utricular and saccular impact on ocular torsion is 3:1. The utriculus generates conjugate and the sacculus disjunctive torsional eye movements.
AB - When someone is tilted laterally, the shear force on the maculae of the utriculus and the sacculus is described by the sine and the cosine of the angle of tilt, respectively. So both the sacculus and the utriculus are stimulated, but in the literature, ocular torsion is normally attributed to utricular function alone (and, thus, seen as a response to y-axis linear acceleration). However, on the base of a series of experiments on a tilt chair, a linear track, human centrifuges, and during parabolic flights, we conclude that the sacculus contributes to ocular torsion as well (there is a response to z-axis linear acceleration). The data suggest that the ratio of the utricular and saccular impact on ocular torsion is 3:1. The utriculus generates conjugate and the sacculus disjunctive torsional eye movements.
KW - Linear acceleration
KW - Ocular torsion
KW - Sacculus
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U2 - 10.1016/0361-9230(96)00126-8
DO - 10.1016/0361-9230(96)00126-8
M3 - Article
C2 - 8886354
AN - SCOPUS:0029787167
SN - 0361-9230
VL - 40
SP - 321
EP - 330
JO - Brain Research Bulletin
JF - Brain Research Bulletin
IS - 5-6
ER -