Effects of massed practice and cue-controlled relaxation on tic frequency in Gilles de la Tourette's syndrome

Abstract

The effects of massed practice (MP) and cue-controlled relaxation on tic frequency were assessed in three single-case studies. Measures of tic frequency, subjective tension and fatigue, and physiological arousal were obtained throughout treatment. MP failed to produce any reduction in tic frequency in the three Gilles de la Tourette's syndrome patients studied. Cue-controlled relaxation resulted in a moderate decrease in tic frequency in only one patient. Tic frequency was related to physiological arousal, as assessed by skin conductance response frequency. No evidence was obtained in support of the suggestion that ticquers demonstrate a deficit in their habituation to sensory stimulation.