The origin of tectal NPY immunopositive fibers in the frog.

A dense network of NPY immunopositive fiber terminals was found in the retinal recipient and less in number in the periventricular fiber layers of the optic tectum. Axons of immunostained cells in the pretectal area, and torus semicircularis could be followed to the tectum. Eye removal did not influence tectal NPY immunopositivity, while a pretectal lesion… CONTINUE READING