Interhemispheric coordination and transfer of visual information

摘要 一直以来，人们都默认左右视觉之间的视觉感觉加工的“分裂”是由 半场（分别在左视觉皮层和右视觉皮层之间）在较高的皮层中以某种方式“愈合”。 认知.我们现在知道这不是真的，至少不是以任何直接的方式。然而视觉认知似乎 无缝的，而不是从中间分开。我们不知道它是如何变得天衣无缝的，因为神经生理学 实验通常一次只研究一个半球。本课题采用双侧多电极 记录，以测试关于视觉信息如何在大脑之间协调和传递的假设。 半球猴子将执行任务，其中信息是通过凝视在两个半球之间传递 移动物体的轨迹，或者信息同时加载到两个半球。 我们的研究结果将使我们深入了解视觉认知、意识的神经基础，并深入了解大脑皮层的功能。 一般的沟通。这对于理解大脑半球间的疾病尤其重要。 互动，如阅读障碍和半侧空间忽视。

Abstract It has been a tacit assumption that the “split” of visual sensory processing between right vs left visual hemifields (between the left vs right visual cortex, respectively) is somehow “healed” in higher cortex/ cognition. We now know that is not true, at least not in any straightforward way. Yet visual cognition seems seamless, not split down the middle. We don’t know how it becomes seamless because neurophysiology experiments typically study only one hemisphere at a time. Our project uses bilateral multiple-electrode recordings to test hypotheses about how visual information is coordinated and transferred between cerebral hemispheres. Monkeys will perform tasks in which information is transferred between hemispheres by gaze shifts, by a moving object’s trajectory, or in which information is loaded simultaneously into both hemispheres. Our results will give insights into the neural basis of visual cognition, consciousness, and into cortical communication in general. This is especially relevant for understanding disorders of interhemispheric interaction, such as dyslexia and hemispatial neglect.