A multiple-schedule evaluation of immediate and subsequent effects of fixed-time food presentation on automatically maintained mouthing.

The team set up a multiple schedule with a child who kept putting objects in their mouth.

Every few minutes the child got a bite of food no matter what they were doing.

They watched if the free food would stop the mouthing right away and also later when the food stopped.

Mouthing dropped the moment the food arrived.

The drop lasted even when food stopped, like a quiet carry-over effect.

Fixed-time snacks worked both now and next.

Edwards et al. (1970) saw only tiny drops with rats pressing levers for food.

Neef et al. (1978) got clear drops with pigeons pecking keys.

The new study shows the same idea works fast with a child’s own body play, closing the lab-to-clinic gap.

You can use a kitchen timer and small bites to cut sensory mouthing without blocking or saying “no.” Try 30-second intervals first, then stretch the time. Watch for the quiet minutes that follow—those are bonus gains you did not have to reinforce by hand.