Many uses have been claimed for hypnosis, from combating drug addiction to overcoming common phobias. A recent experimental study helps illuminate the supposed connection between hypnosis and increased power of recall. A number of subjects
listened to a long, unfamiliar piece of instrumental music. Under subsequent hypnosis, half the subjects were asked to recall salient passages from the musical piece and half were asked to describe scenes from
“the film they had just viewed,” despite their not having just seen a film. The study found that the subjects in the second group were equally confident and detailed in their movie recollections as the subjects in the first group were in their music recollections.

Which one of the following statements is most supported by the information above?