ATC code N04 Medial forebrain bundle Pallidotomy Management of Parkinson's disease History of Parkinson's disease Fregoli delusion Parkinsonian gait Substantia nigra ATC code N Nigrostriatal pathway Non-arteritic anterior ischemic optic neuropathy D. James Surmeier Aron K. Barbey Dizocilpine Neuron T-type calcium channel Caudate nucleus Tyrosine hydroxylase CP 55,940 Euphoria Grandiose delusions Slow-wave sleep Reward system Ray L. Watts Dopamine hypothesis of schizophrenia Hemispatial neglect Central pattern generator Gut microbiota Dopamine receptor D5 Adrenergic receptor WAY-100635 Yohimbine Phenylpropanolamine Methylene blue Adderall Animal testing Dopamine receptor D2