Functional analysis and treatment of rumination using fixed-time delivery of a flavor spray.

The team worked with one adult who had autism and long-term rumination.

They ran a functional analysis first. The rumination kept happening even when no one reacted. That pattern points to automatic reinforcement.

Next they sprayed apple-pie flavor into the man’s mouth every few minutes no matter what he did. The spray was his favorite stimulus.

Fixed-time flavor spray dropped the rumination to near zero.

The man quickly learned to press a button and give himself the spray on the same schedule. He kept the low rumination while staff faded away.

Einfeld et al. (1995) used extinction plus communication to stop breath holding that was reinforced by adult attention. Both studies start with a clear FA, but the treatments differ. Attention-maintained behavior needs extinction; automatically-maintained behavior can be replaced with steady sensory input.

Horner-Johnson et al. (2002) warn that extra attention during tangible sessions can hide the true function. Johnson et al. (2009) turn that idea around: they add sensory input on purpose and still see the behavior drop, proving the rumination was not attention-based.

Fritz et al. (2022) stretch the same FA logic to cats. The lesson across species: test the function first, then pick the intervention that matches it.

If your client’s challenging behavior keeps going when no one is looking, try scheduled sensory reinforcement instead of extinction. A spray bottle of a safe, loved flavor costs little and can be self-operated. Start with staff delivery, then teach the client to hit a switch or button. You free your hands and give the person control while the behavior stays down.