"You can capture a map of the circuit in the brain that was active, " said Brookhaven neuroscientist Panayotis K. Thanos, who helped develop the technique.

WSJ: Brain Science: Mysterious Neural Circuitry Becomes Viewable

For a flat fee of 130 Argentinean pesos, tour-goers receive an Italian crystal wine glass along with a map indicating each stop on the circuit.

BBC: Creative wine tasting in Buenos Aires