Hall, L. & Case-Smith, J. (2007). The effect of sound-based intervention on children with sensory processing disorders and visual-motor delays. American Journal of Occupational Therapy, 61, 209-215.
Leah Hall conducted a study with 10 children ages 5y 8m - 10y 11m who were diagnosed with sensory processing disorder (they were rated "Definitely different" in 3 or more areas of the Sensory Profile). Children were given home programs of four weeks with a sensory diet followed by 8 weeks of continued sensory diet with Therapeutic Listening. Significant results were found at the end of the first 4 weeks and at the end of the 12 weeks. Children gained an average of 71 points on the Sensory Profile with the biggest gains in the area of auditory processing and behaviors associated with sensory processing. Children with specific issues (such as auditory hyper-sensitivities, tantrums and hyperactivity made significant gains in some of those areas, as well). In addition, significant gains were made in handwriting (as assessed by the Etch program, and visual processing (as assessed by the VMI). Parents noticed large changes in overall behavior included improved attention, social interactions, self awareness, communication and sleep patterns. One child on medication for ADHD was given a reduction in dosage.