The 28-year-old man, who has been paralysed for more than a decade after a spinal-cord injury, had electrodes from the prosthetic hand inserted into his sensory and motor cortexes. This allowed him to both control the hand with thought and sense when the fingers of the hand were touched individually.
Dinitrogen monoxide is its IUPAC name and its common name is laughing gas. Its chemical name is nitrous oxide itself.
Dopamine regulates the reward system in the brain. Naturally occurring neurotransmitters, such as serotonin, norepinephrine, epinephrine, and dopamine, are also called endogenous ligands. Various drugs can mimic endogenous ligands. It is by mimicking endogenous ligands that many drugs of abuse produce their effects.