Answer:
is supported by the orderly reinnervation of the frog optic tectum by regenerating retinal ganglion cells
Explanation:
In vertebrates, the optic tectum represents the major part of the midbrain (mesencephalon), which is involved in the development of motor skills such as body movement, eye movement, vision, hearing, etc. In lower vertebrates such as, for example, frogs, the primary target of the optic nerve fibers (i.e., retinal ganglion cells) is the optic tectum, which is responsible for the visually guided behavior. Roger Sperry was a neurobiologist and pioneer brain researcher who won the Nobel Prize in Medicine for his investigations in neuroscience and experimental neurology. In 1940, R. Sperry made different experiments involving the visual system of frogs and he observed that when optic fibers are damaged they grow back to their original localization in the optic tectum in order to re-establish the original set of neural networks. From this observation, R. Sperry proposed his chemoaffinity hypothesis, which states that neurons have individual identification tags that specify synaptic networks.
