Sentences with phrase «retinal image size»
If neurons respond to the same retinal image size, even if the distance from the object changes, they are supposed to react to retinal image size.
https://www.sciencedaily.com/
A group of researchers at Osaka University found that neurons in the monkey visual cortical area V4 * 1, one of the areas in the visual cortex, calculate the size of an object based on information on its retinal image size and the distance from the object.
The group analyzed neuron activity in the monkey's visual cortical area V4 and found that cells in this area integrated information about retinal image size and the distance from the object to calculate the size of the object.
When an object is far away, its retinal image size becomes small, and when the object is near, its retinal image size becomes big.
Ichiro Fujita and Shingo Tanaka, then student in the doctoral course of Graduate School of Frontier Biosciences, Osaka University, examined if there were cells that express not the retinal image size, but the size of the object itself.
This group's experiment verified that cells in the visual cortical area V4 do not react to the retinal image size but to the size of the object.
Not exact matches
In contrast, if neurons convey information about object size, they are expected to react to the small retinal image when the object is far away and to react to the big retinal image when the object is near.
It was believed that neurons responded to the size of the image formed on the eye (retinal image); however, size constancy can not be achieved by such cells alone.