[Morphological changes in the temporal neocortex of the rat after neonatal treatment with 6-hydroxydopamine].

Cell density countings and measurements of cortical thickness of animals treated neonatally with subcutan or intracisternal injections of 6-OH-DA were performed at five and fifteen days post-injection. Morphological changes were observed; however, these changes cannot be attributed without any doubt to the lack of catecholamine fibres.