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An area for vergence eye movement in primate frontal cortex

机译：灵长类额叶皮层中会聚眼睛运动的区域

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摘要

To view objects at different distances, humans rely on vergence eye movements to appropriately converge or diverge the eyes and on ocular accommodation to focus the object. Despite the importance of these coordinated eye movements (the 'near response') very little is known about the role of the cerebral cortex in their control. As near-response neurons exist within the nucleus reti-cularis tegmenti pontis, which receives input from the frontal eye field region of frontal cortex, and this cortical region is known to be involved in saccadic and smooth-pursuit eye movements, we propose that a nearby region might play a role in vergence and ocular accommodation. Here we provide evidence from rhesus monkeys that a region of frontal cortex located immediately anterior to the saccade-related frontal eye field region is involved in vergence and ocular accommodation, and in the sensorimotor transformations required for these eye movements. We conclude that the macaque frontal cortex is involved in the control of all voluntary eye movements, and suggest that the definition of the frontal eye fields should be expanded to include this region.
机译：为了查看不同距离的物体，人类需要依靠发散的眼睛运动来适当地使眼睛会聚或发散，并依靠眼部调节来聚焦物体。尽管这些协调的眼球运动（“近反应”）很重要，但对大脑皮层在其控制中的作用知之甚少。由于网状脑桥存在于附近的反应神经元中，该神经元从额叶皮层的额叶视野区域接收输入，并且已知该皮层区域参与了顺眼和顺滑的眼球运动，因此我们建议附近区域可能在发散和眼睛调节中起作用。在这里，我们提供了来自恒河猴的证据，即位于与扫视相关的前眼视野区域紧邻的前额叶皮层区域参与了散光和眼部适应，以及这些眼球运动所需的感觉运动转换。我们得出结论，猕猴额叶皮层参与了所有自愿性眼球运动的控制，并建议应扩大额叶眼视野的定义，以包括该区域。

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  • 来源
    《Nature》 |2000年第6807期|p.1003-1007|共5页
  • 作者

    Paul D. Gamlin; Kyunghee Yoon;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
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