experiments were carried on in the wistar rats having self-stimulation ( ss ) electrodes implanted chronically in substantia nigra-ventral tegmental area ( sn-vta ) to examine whether modulations of gabaergic , serotonergic , histaminergic , dopaminergic , and glucocorticoid neuronal receptor functions will affect or not the brain reward system and the ss behaviour .
C0006104
brain
C0004927
behaviour