How people with life-long arachnophobia can hold a tarantula after just two-hours of exposure therapy

How exposure therapy enables even people with life-long arachnaphobia to hold a tarantula after just two hoursDuring therapy participants were taught about tarantulas which helped them challenge their catastrophic thoughts | UPDATED: 14:14 GMT, 22 May 2012 Adults with a lifelong debilitating spider phobia can hold a tarantula after just two hours of therapy as it changes their brains' response to fear, scientists say.