Wouldn’t it be great if there were some sort of fancy biofeedback device that could be used for the treatment of articulation disorders? There is! One example is electropalatography (EPG) devices like the SmartPalate, now commercially available, increasingly affordable by clinics and school districts, and marketed for the correction of speech sound errors (/r/ in particular).

But, do we have evidence to support that EPG devices work for speech? That’s exactly what Hitchcock et al. attempt to tackle. Five elementary-aged children—all with very low accuracy for /r/, four previously treated for /r/ and one with no treatment history—were provided…