Temporoparietal junction

The temporoparietal junction (TPJ) is an area of the brain where the temporal and parietal lobes meet, at the posterior end of the Sylvian fissure. This area is known to play a crucial role in self-other distinction processes and theory of mind (TOM), and damage to this area has been implicated in producing out-of-body experiences (OBEs). OBEs may also be induced by electrically stimulating the TPJ. Electromagnetic disruptions of the TPJ have been shown to affect individuals' abilities to make moral decisions.

In September 2006, Nature reported that electromagnetic stimulation of the left temporoparietal junction of a patient with epilepsy resulted in an effect that was very similar to the doppelgänger phenomenon.