It was such a delight to see someone finally getting the dopaminergic function right and not confusing dopamergic populations activity with perceptions of pleasure, but instead pointing to the modern understandings: they predict future pleasure. Glutamate (in the shell of the nucleus accumbens) is the real "pleasure" chemical (among all it's various other uses).

I think they showcase the anticipation reward no? For example, a near-miss with slot machines spikes higher dopamine than actually hitting the magical 777. Can’t find source atm