Evaluation of an awareness enhancement device for the treatment of thumb sucking in children.

Richman et al. (2001) clipped a small buzzer to two children’s sleeves. The buzzer vibrated each time the thumb touched the mouth. The goal was to stop thumb sucking without adult nagging.

The study used a single-case design. The buzzer acted as an awareness cue. No other rewards or punishments were added.

Thumb sucking dropped to almost zero minutes per day once the buzzer was on. The behavior stayed low even after the buzzer was removed.

Parents reported the kids forgot about the device after the first hour.

Lancioni et al. (2009) later used a pager-sized stimulator to cut drooling in adults with profound ID. Both studies show a body-worn buzzer can reduce oral habits without staff help.

Hodges et al. (2018) paired a wristband cue with praise to stop toe walking in a preschooler with autism. Like M et al., the cue alone cut the behavior fast, but Hodges added praise. This suggests you can boost effects by adding reinforcement.

Aldakhil (2026) mixed sensory toys with habit reversal to stop hair pulling in autistic students. Both papers target body-focused habits, yet Fahad’s package needed teacher time while M et al. ran itself.

If you have a client who sucks their thumb during downtime, try a small vibrating buzzer on the sleeve. It gives instant, private feedback and needs no adult reminders. Start with a short baseline, then let the device run. Track minutes sucked per day; most kids drop the habit in under a week.