A comparison of flooding and thought stopping in the treatment of obsessional neurosis

Flooding in vivo and thought stopping were compared in patients with obsessional neurosis, in a cross-over design. It was hypothesized that the two techniques would have different effects on symptomatology. However, although both seemed to be effective treatments, there were no significant differences between them. Reasons for this finding are discussed. There was, however, a slight tendency for flooding to produce more overall improvement, and a greater reduction in avoidance behaviour. There was also a tendency for the first treatment to produce more effect. A worthwhile clinical finding was that a fair amount of improvement occurred after only eight out-patient sessions.