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"e-Therapy" has come a long way since the (slightly tongue in cheek) days of ELIZA, a very early attempt at computer based psychotherapy. ELIZA was little more than an algorithm that spotted patterns in words and returned empty, yet meaningful-sounding questions back at the user.

All sorts of e-therapies are now available to help low-moderate level mental health issues.

But could Virtual Reality technology bring the next great leap in our understanding of mental processes, and, in turn, be the basis of future psychotherapies? Quentin Cooper meets some of the researchers trying to find out.