人間に於ける体位と眼位との関係（其2）—垂直軸のまわりの他動的頭部轉位に依る眼球偏位

　前に我々は（1），絶対暗室内で，躯幹を固定し，頭部を自動的に左右にまわした際，従来の多くの人の推測とは全く反対に，眼は頭部をまわしたその同じ方向へ偏位する事実のある事を見出し，之は頭部回転が被験者の意志で自動的に行われた事と何等かの関係があるのではないかと述べた。そこで我々は，この点を確かめる為，他動的に頭部をまわした場合の眼球偏位の有無とその方向を検索して見た。

SUZUKI and associates made studies of the movements of the eyes and the direction in which they moved by placing a person in a ro-om absolutely darkened and by turning the he-ad either, left or right passively. They found that the rate of movement of the eyes to the same side is markedly diminished when the head is turned passively as compared to that when it is turned actively. But, when the rate of movement to the same side was compared to movement to the opposite side, no difference was noted. The authors concluded that the ph-enomenon which is assumed to produce compe-nsatory eye movements when the head is turned around a given perpendicular axis could not be accepted as an established fact.