Functional assessment and treatment of life-threatening drug ingestion in a dually diagnosed youth.
Even pill swallowing that can kill may be operant escape behavior—and you can stop it with a simple FA-driven plan.
01Research in Context
What this study did
One youth kept swallowing pills that could kill him. Doctors called it accidental, but the behavior kept happening.
The team ran a short functional analysis. They watched when pill swallowing occurred and what changed right after. They found the behavior produced escape from demands every time.
Next they built a simple operant plan. It removed the payoff and taught a safer way to ask for breaks.
What they found
Drug ingestion dropped to almost zero once the escape payoff stopped. The youth used the new break request instead.
The result lasted without extra medication or restraints. A life-threatening act turned out to be just another operant behavior.
How this fits with other research
O'Reilly et al. (2008) later repeated the same FA-to-treatment path with kids exposed to drugs before birth. Their challenging behavior also fell once the social payoff was removed.
Colombo et al. (2024) looked back at 28 adult studies. Only a handful existed, yet each followed the same model. The 1993 case now sits inside that tiny adult evidence base.
Roth et al. (2025) just used the same logic on self-induced vomiting. Near-zero levels again. The topography changes; the function-driven recipe stays put.
Why it matters
If a client engages in any life-threatening act, run a quick functional analysis first. The payoff might be social, not medical. Once you see the function, block it and replace it with a safe response that gives the same result. You could turn a lethal topography into a teachable moment in one session.
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Join Free →Run a 10-minute demand-escape test on any severe self-harm; if the behavior spikes when tasks are presented and stops when tasks stop, teach a break request and withhold escape for the dangerous act.
02At a glance
03Original abstract
Few data exist on operant mechanisms associated with drug overdose. In this investigation, a functional analysis indicated that life-threatening drug ingestion exhibited by a dually diagnosed youth was maintained by negative reinforcement. An operant intervention, derived from behavioral assessment data, reduced drug ingestion to near-zero levels.
Journal of applied behavior analysis, 1993 · doi:10.1901/jaba.1993.26-255