Response to Rotatory Stimuli in Fighter Pilots

Aschan, Gunnar

doi:10.3109/00016485409130269

Cited by 64 publications

(22 citation statements)

References 7 publications

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“…The VOR of gymnasts is characterized by a 15% shortening of TC and by a 25% decrease gain with an asymmetry producing a more marked decrease in counterclockwise rotation (Quarck and Denise 2005). Among Wghter pilots, the duration of the post-rotational nystagmus is shorter (Aschan 1954), but two studies have observed an increased gain, which seems out of step with the rest of the literature (Lee et al 2004;Schwarz and Henn 1989).…”

Section: Introductionmentioning

confidence: 93%

Vestibulo-ocular reflex and motion sickness in figure skaters

et al. 2008

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In order to determine the effect of figure skating on the functional plasticity of the vestibular system, we quantified vestibulo-ocular reflex (VOR) and motion sickness (MS) intensity in 11 female figure skaters and 11 matched control subjects. Vestibular stimulation consisted of three cycles of sinusoidal rotation (0.025 Hz, +/-60 degrees /s) and two velocity steps of 60 degrees /s (acceleration 60 degrees /s(2)). Nauseogenic stimulation consisted of a constant velocity (60 degrees /s) off vertical axis rotation (OVAR) using a 15 degrees tilt angle. Subjective sickness symptoms were rated immediately after OVAR with the Pensacola diagnostic index. During sinusoidal stimulations, the skaters' VOR, as compared with that of the controls, demonstrates a gain that is 27% lower (0.44 +/- 0.12 vs. 0.58 +/- 0.10; P < 0.01) and a phase advance (10 +/- 12 degrees vs. -0.3 +/- 6.4 degrees ; P < 0.05). During velocity steps, the VOR gain is 32% lower among the skaters (0.52 +/- 0.14 vs. 0.71 +/- 0.12; P < 0.01), but there is no difference in time constant (10.8 +/- 1.8 s vs. 10.5 +/- 2.7 s; P = 0.78). Nauseogenic stimulation evokes significantly less MS in figure skaters than in control subjects (2.8 +/- 2.8 vs. 16.2 +/- 13.7; P < 0.01). Quantitative alterations in VOR parameters observed in figure skaters probably result from vestibular habituation induced by repeated unusual stimulations when practicing figure skating.

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Section: Introductionmentioning

confidence: 93%

Vestibulo-ocular reflex and motion sickness in figure skaters

et al. 2008

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“…Finally, the habituation of vestibular function reported in fighter pilots [1], figure skaters [8,18] and ballet dancers [20] should be attrib uted to visual inhibition of nystagmus [24] and not habituation; in fact.…”

Section: Discussionmentioning

confidence: 99%

“…Figure 5 shows that (1) the number of rotations does not signifi cantly alter the speed of the slow phase of the nystagmus, either during acceleration or deceleration at 4°/s2, and (2) the slow phase of the nys tagmus induced by deceleration is less than that induced by accelera tion, the same as observed with stimuli of 2° and 1 °/s2. -i------------------------------1 ---------------------------------------, 1 …”

Section: Fourth Experiments (Fig 6)mentioning

confidence: 99%

Is There Nystagmus Habituation to Angular Acceleration in Man?

Toglia¹,

Suranyi²,

Kosmorsky³

1982

Stereotact Funct Neurosurg

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10 healthy volunteers, ranging in age from 20 to 30 years, were subjected to rotatory stimulation at 1°, 2° and 4°/s² acceleration and deceleration, repeated four times at weekly intervals. Nystagmus was recorded with electronystagmography. Slowphase velocity and the total numbers of nystagmic spikes were analyzed. There was no evidence for habituation in this experiment, which is in agreement with the majority of previous publications.

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“…Dodge (9) and Wcndt (27) have examined this decline in detail and have characterized the loss of vestibular nystagruus as the resolution of the conflict between competing visual and vestibular inputs, in which the visual input gains'ascendency in determining the spatial orientation. A loss of nystagmic output with training for certain ocý cupations is a common finding; for example in pilots (2). and skaters (20).…”

Section: Discussionmentioning

confidence: 99%

Habituation of vestibular nystagmus in the cat during sustained arousal produced by d-amphetamine.

Crampton¹

1961

PsycEXTRA Dataset

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Response to Rotatory Stimuli in Fighter Pilots

Cited by 64 publications

References 7 publications

Vestibulo-ocular reflex and motion sickness in figure skaters

Vestibulo-ocular reflex and motion sickness in figure skaters

Is There Nystagmus Habituation to Angular Acceleration in Man?

Habituation of vestibular nystagmus in the cat during sustained arousal produced by d-amphetamine.

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