Please read the update below for clarification on Ground Zeroes and The Phantom Pain.

FORBES: Connect

Those who wait longer for a fake limb seem to suffer more from phantom pain.

BBC: What phantom limbs and mirrors teach us about the brain

Metal Gear creator Hideo Kojima appears to be teasing a big Phantom Pain announcement possibly during the PlayStation meeting tomorrow.

FORBES: Phantom Pain Site Update: Will The Mysterious Game Be A Next-Gen Metal Gear Solid? [Update]

Metal Gear Solid 5 is a tricky one, and it depends on your interpretation of The Phantom Pain trailer.

FORBES: Reactionary: Assembling Your Dream PlayStation 4 Launch Lineup

Note the bandaged man in the hospital in Phantom Pain, and the burned man boarding the helicopter in Ground Zeroes.

FORBES: Why 'The Phantom Pain' Is Probably 'Metal Gear Solid V'

The new trailer is a hodge-podge of Ground Zeroes and Phantom Pain material, which is fitting since both those games are in fact one and the same.

FORBES: Connect

Turns out, it was Metal Gear Solid 5: The Phantom Pain, a game starring Naked Snake (aka Big Boss) some years after the events of Peace Walker.

FORBES: Connect

In 2009 he used the phantom limb again to provide evidence for this theory, showing that sufferers could experience relief from phantom pain merely by watching someone else massaging or flexing their own hand.

BBC: What phantom limbs and mirrors teach us about the brain

His work in neurology has helped patients with phantom limb pain, a particularly cruel affliction for people who have lost an arm or a leg.

FORBES: Getting Inside V. S. Ramachandran's Head

Researchers at the University of Manchester are turning to virtual reality once again, not to have another go 'round at proving whether telepathy is real or not, but to help individuals with amputated limbs recover from so-called "phantom limb pain, " a sensation wherein amputees appear to feel pain in their lost limb.

ENGADGET: Researchers turn to VR to treat phantom limb pain