The effectiveness of cognitive-behavioural therapy was studied under three
different conditions: a) only cognitive-behavioural therapy, b) therapy plu
s relaxation and, c) therapy together with hypnosis. Twenty-one participant
s were used with age mean of 32,95 years and standard deviation of 12,43. A
ll participants were diagnosed with a major depression according to the DSM
-IV criteria. Results clearly show that cognitive-behavioural therapy is mo
re effective when applied under hypnosis conditions. This effectiveness of
the cognitive-behavioural therapy under hypnosis conditions was obtained fo
r all clinical variables studied Anxiety, Depressive Neurosis, Major Depres
sion, Histrionics, Psychotic Thinking.