The distribution of somatostatin-immunoreactive neurons in the visual cortex of adult rabbits and during postnatal development.

In the adult rabbit, the somatostatin-immunoreactive neurons are seen in all visual cortical layers, with the majority of them being found in layers II-III, V and VI. During postnatal development, we can see labeled cells in layer VI at birth and in layers V and VI on the 3rd day. The labeled cells are seen in layers II-III beginning on the 5th day, and on the 10th day, these labeled neurons reach distribution typical in the adult rabbit. The number of somatostatin-immunoreactive cells increase from birth to the 10th day, and decrease about 15%, from the 10th day to adulthood.