Penfield mood organ

Fictional mood-altering device

The Penfield mood organ is a fictional device in Philip K. Dick's 1968 science fiction novel Do Androids Dream of Electric Sheep? that is used to modify emotional states, controlled by the user entering a number on its keyboard. The device is described in the novel as using "Penfield artificial brain stimulation". A "Penfield wave transmitter" is also described in the book, as a weapon for inducing cataplexy.

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