Trina attempts to overcome her fear of clowns by learning how to shift from a feeling of tension to one of calm and relaxation. next, she is asked to imagine different situations, each more anxiety-provoking than the previous. she only proceeds to the next situation if she can maintain her feeling of relaxation. trina's therapist is using to remove her fear.

Trina's therapist is using "systematic desensitization" to remove her fear.

Systematic desensitization is a sort of behavioral therapy in view of the standard of classical conditioning. It was produced by Wolpe amid the 1950s. This treatment means to expel the dread reaction of a fear, and substitute an unwinding reaction to the conditional stimulus steadily utilizing counter conditioning.