Lie Detector and more
Ghostbusters: The Video Game (Realistic Versions)
The Aura Video-Analyzer is a piece of equipment that can be used to tell the emotional state of the person hooked up to it (and if they are lying), as well as display their self-image. The name of this device and the details of its function are taken from the Ghostbusters Role-Playing Game. It is not named nor its function explicitly stated during the movie.
If possessed by a ghost, it will display an image of that ghost. For example, when it was used on Dana Barrett, the device's monitor showed a spectrographic image of her face, as she had not been possessed by Zuul at that point. However, when it was hooked up to Louis Tully after he had been possessed by Vinz Clortho, the device's monitor showed an image of a terror dog.
RGB NOW ComicsEdit
Ghostbusters: The Video GameEdit
It is used on Ray after his precognitive dream. The data indicated Ray's brain was not quite in sync and behaved like a seismograph during an earthquake.