ABSTRACT
M. Lockhart reports that a few of the original twenty-three stutterers have been re-referred to speech therapy, but after very few treatment sessions involving only re-teaching of block control techniques, these patients have regained at least clinical fluency, with some evidence of transfer of this fluency beginning to take place. It is possible that in some instances the use of any of the adjuncts alone will produce fluency, with the necessary attitude change to allow this to be maintained. Any treatment technique seems to have more validity if some explanation can be given of its effect but, unfortunately, no single rationale can be found for auditory masking. There has been general agreement concerning the characteristics of this noise which has an ameliorative effect on stuttering. In most of the foregoing experiments, the masking noise presented to stutterers has been continuous and triggered by a manual switch which was under the conscious control of the subject.
