Emigration
In an emigration simulation, the participant would enter the simulation from an outer reality, via a brain-computer interface, but to a much greater degree. On entry, the participant is subject to mind transfer which temporarily relocates their mental processing into a virtual-person which holds their consciousness. Their outside-world presence remains in stasis during the simulation. After the simulation is over, the participant's mind is transferred back into their outer-reality body, along with all new memories and experiences gained. Mind transfer is portrayed in Science Fiction novels such as Mindswap (1966) by Robert Sheckley and the TV series Quantum Leap; most notably, mind transfer was the primary mechanism by which consciousness was transferred in The Thirteenth Floor (1999).
Read more about this topic: Simulation Hypothesis, Types of Reality Simulation