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An Alternative Theory of Binocularity.
Cherlyn J Ng1,2,3, Dale Purves1,4
1Neuroscience and Behavioral Disorders Program, Duke-NUS Graduate Medical School Singapore, Singapore, Singapore.
Frontiers in Computational Neuroscience
|October 26, 2019
Summary
This study proposes a new theory of binocular vision, suggesting anatomical correspondence, not retinal image matching, explains how animals fuse images and perceive depth. This approach also offers a reason for ocular dominance in vision.
Area of Science:
- Neuroscience
- Vision Science
- Comparative Biology
Background:
- Binocular vision, the ability to see with two eyes, is a near-universal trait among vertebrates.
- A fundamental challenge in vision science is understanding how animals with overlapping visual fields fuse non-identical images from each eye to achieve depth perception.
Purpose of the Study:
- To propose an alternative theory of binocular vision that addresses the image fusion and depth perception problem.
- To offer a new explanation for the phenomenon of ocular dominance.
Main Methods:
- The study proposes a theoretical framework based on anatomical correspondence between the eyes.
- This approach circumvents the traditional "correspondence problem" in vision science.
Main Results:
- The proposed theory suggests that anatomical correspondence, rather than matching retinal images, is key to binocular fusion.
- This framework provides a novel rationale for the existence of ocular dominance.
Conclusions:
- The theory of anatomical correspondence offers a new perspective on the mechanisms underlying binocular vision.
- This model potentially resolves long-standing questions about image fusion, depth perception, and ocular dominance in vertebrates.
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