ISD Team
11 Sep 2025

A large-scale clinical trial evaluated a biofeedback-based therapy for children with residual speech sound disorder—a condition where pronunciation difficulties persist beyond age eight. Using tools such as ultrasound imaging and acoustic displays, the therapy provided visual feedback to help children adjust their tongue movements, speeding up progress with challenging sounds like “r.”

The results were striking: children receiving biofeedback improved at more than twice the rate of those in traditional motor-based therapy, achieving these gains in just three sessions. Researchers believe this approach could significantly reduce therapy time, lower frustration for students, and help speech-language pathologists manage growing caseloads more efficiently.

Key Facts:

  • Faster Improvement: Biofeedback drove 2.4× quicker progress than conventional therapy.
  • Visual Learning: Tools like ultrasound and acoustic displays let children “see” their speech errors.
  • Clinical Impact: Could relieve strain on therapy services by accelerating recovery.

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