Answer :
If a kitten is deprived of visual stimulation in one eye during the critical period for the first two months of its life may be because of the circuitry of the neurons in its visual cortex is irreversibly altered.
It was observed by the scientists who conducted an experiment on number of newborn kittens that their one of the eyelids was sutured shut. But the kitten was allowed to grow up naturally in the same condition only and when it reached adulthood that is about 6 months, its eyelids were opened again. They also recorded the electrophysiological activity in each of the kitten’s eyes and the recordings inferred that an abnormally low number of neurons were reacting in that eye which had been sutured shut, and an abnormally high number in the other eye which was normal.
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