The effects of noncontingent access to food on the rate of object mouthing across three settings.

The team gave free bites of food all day long. They wanted to see if this would stop kids from chewing on toys.

They watched the same children in three places: class, play room, and hallway.

Every few minutes the child got a cracker or piece of fruit no matter what they were doing.

Object mouthing dropped in every room once the food was available.

The decrease stayed steady across all three settings.

Free food worked like a plug-in substitute for mouth play.

Parsons et al. (1990) saw the same thing with rumination. Unlimited cereal at meals almost wiped the behavior out.

Koegel et al. (2014) tried the trick with toys instead of food. For most kids the toys helped, but one child mouthed more.

Van Arsdale et al. (2024) looked at 15 newer feeding studies. They say teams now use noncontingent food in many ways, but few spell out the rules. Our 2003 paper is one of the clearest maps they cite.

If a client keeps putting objects in their mouth, try handing them a safe snack on a timer. No need to wait for the behavior first. Set the timer, deliver the bite, and watch the mouthing fade in every room you use it.