視運動刺激の重心動揺におよぼす影響
正常者の成績
1980 年 26 巻 1Supplement1 号 p. 182-191
詳細
1980 年 26 巻 1Supplement1 号 p. 182-191
The effects of the horizontal and vertical optokinetic stimulation on the body's center of gravity in normal adults were investigated by using an optokinetic stimulator of Jung type, a straingage-platform and a minicomputer. The following results were obtained.
With increasing speed of optokinetic stimulation the total length of the body's center of gravity gradually increased up to 60 deg/sec and then decreased. Meanwhile there was a standard two-phasic course in the position of the center of gravity. Y/X ratio was below 1.00 in the horizontal optokinetic stimulation, while in the vertical stimulation it was over 1.00, showing maximum deviation of the position at about 60 deg/sec of optokinetic stimulation. Spectral frequencies of the movement of the center of gravity showed some peaks at around 0.3 Hz and 1.0 Hz during optokinetic stimulation. The averaged spectral frequencies were calculated to show the change of spectral frequencies in digital values.
