The independence of eye movements in a stomatopod crustacean is task dependent.
The independence of eye movements in a stomatopod crustacean is task dependent.
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DOI：
10.1242/jeb.153692
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发表时间：
2017-04-01
期刊：
影响因子：
--
通讯作者：
Roberts NW
中科院分区：
文献类型：
--
作者：
Daly IM;How MJ;Partridge JC;Roberts NW
口足类动物具有非凡的视觉系统，在所有三个旋转自由度中包含眼睛的独立运动。在这项工作中，我们证明，在孔雀螳螂虾，Odontodactylus scyllarus，眼睛的独立性的水平是任务依赖。在视动背景下的凝视稳定期间，左右眼之间在旋转自由度的偏航度中存在弱但显著的相关性，但在俯仰和扭转中不存在。当一只眼睛完全被遮挡时，在凝视稳定期间，未被遮挡的眼睛不驱动被遮挡的眼睛。然而，遮挡一只眼睛确实会显著影响未遮盖的眼睛，降低其注视稳定性能。存在横向不对称性，其影响的大小取决于眼睛（左或右）与视野运动方向的组合。相比之下，在惊吓扫视期间，未被覆盖的眼睛确实驱动被覆盖的眼睛。两只眼睛之间的独立程度如此不同，表明对单个视觉任务的反应可能遵循不同的神经通路。总结：螳螂虾（口足类）的眼睛之间的独立性水平是任务依赖性的，这表明视觉信息的神经处理的变异性。
Stomatopods have an extraordinary visual system, incorporating independent movement of their eyes in all three degrees of rotational freedom. In this work, we demonstrate that in the peacock mantis shrimp, Odontodactylus scyllarus, the level of ocular independence is task dependent. During gaze stabilization in the context of optokinesis, there is weak but significant correlation between the left and right eyes in the yaw degree of rotational freedom, but not in pitch and torsion. When one eye is completely occluded, the uncovered eye does not drive the covered eye during gaze stabilization. However, occluding one eye does significantly affect the uncovered eye, lowering its gaze stabilization performance. There is a lateral asymmetry, with the magnitude of the effect depending on the eye (left or right) combined with the direction of motion of the visual field. In contrast, during a startle saccade, the uncovered eye does drive a covered eye. Such disparate levels of independence between the two eyes suggest that responses to individual visual tasks are likely to follow different neural pathways. Summary: The level of independence between the eyes of mantis shrimps (stomatopods) is task dependent, suggesting variability in neural processing of visual information.