PIGEONS EYES CONVERGE DURING FEEDING - EVIDENCE FOR FRONTAL BINOCULAR FIXATION IN A LATERAL-EYED BIRD
PIGEONS EYES CONVERGE DURING FEEDING - EVIDENCE FOR FRONTAL BINOCULAR FIXATION IN A LATERAL-EYED BIRD
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DOI：
10.1016/0304-3940(84)90248-9
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发表时间：
1984-01-01
影响因子：
2.5
通讯作者：
BLOCH, S
中科院分区：
文献类型：
--
作者：
MARTINOYA, C;LEHOUEZEC, J;BLOCH, S
在喂食过程中，鸽子的头在空中和眼在头的位置被同时记录在视频中（EOG）。在实验测量的眼睛会聚度（两个 EOG 的总和）和颗粒视差（根据眼间距离和眼睛到颗粒的距离计算）之间发现了线性相关性。这种眼睛在接近目标时的逐渐会聚被认为是额部双眼固定的证据。由于当动物被迫依赖额部单眼或侧向视觉时，这种趋同现象就会普遍存在，因此必须预设鸽子有一个控制额部固定的中央机制。
Pigeons' head-in-space and eye-in-head positions were simultaneously recorded (EOG) in video during feeding. A linear correlation was found between the experimentally measured eye convergence (sum of both EOGs) and grain parallax (calculated from interocular and eye-to-grain distances). This graded convergence of the eyes on approaching a target is considered evidence of frontal binocular fixation. Since such convergence prevails when the animal is forced to rely on frontal monocular or on lateral vision, a central mechanism controlling frontal fixation in the pigeon must be presupposed.