Physiological and cognitive assessment of a fire-setting child.

One team tracked a single child who set fires. They wanted to see if his body and mind reacted differently to fire cues than to neutral cues.

They used a small heart-rate monitor and skin-potential leads. They also asked quick thought questions after each picture. The goal was to build a risk map for future exposures.

The boy’s heart rate and skin response jumped when he saw fire pictures. His thoughts also leaned toward fire themes. The two signals moved together.

The pattern gave the team a clear list of high-risk triggers. They could now rank fire cues from mild to intense for later therapy.

Tassé et al. (2013) later saw the same heart-rate jump in kids with autism during high-anxiety tasks. They copied the 1985 two-track plan: body plus behavior.

McCabe et al. (2023) ran a stricter test. They found heart rate did NOT predict destructive behavior once reinforcers were controlled. The 1985 idea may only work when the trigger is still new and un-tested.

Vos et al. (2013) and Roeyers (1996) both showed heart-rate data line up with emotion codes in adults with severe ID. The method travels across ages and diagnoses.

You can borrow the 1985 recipe today. Pair a cheap heart-rate watch with a short thought log during exposure trials. Use the combo to rank stimuli for a fear or fire hierarchy. Just remember: once clear reinforcers are in play, heart rate may lose its punch. Run a quick functional analysis first to check.