Disrupted stimulus control but not reward sensitivity in individuals with autism spectrum disorders: a matching law analysis.

Reed et al. (2012) ran a matching-law task with children who have autism. Kids picked between two pictures that gave treats at different rates.

The team tracked how often each picture paid off and how often the child chose it. They also slipped in bright, colorful distractors to see if those pulled attention away.

Children with autism matched the payoff rates just like typical kids. Their reward sensitivity was fine.

The catch: flashy, irrelevant pictures biased their choices far more than they biased typical kids. Stimulus control, not reward sense, was the weak spot.

McCormick et al. (2025) seems to disagree. They saw blunted brain responses to both social and money rewards in autism. The clash is only skin-deep: Phil looked at real-time choices, while B et al. looked at brain waves. Behavior can look normal even when brain signals are muted.

Adams et al. (2021) backs Phil up. Toddlers with autism lost track of named targets when bright distractors were on screen, showing the same heightened pull from irrelevant cues.

Kleberg et al. (2017) adds a mechanism: kids with autism take longer to disengage their eyes from any stimulus. Slow disengagement plus high bias equals the perfect storm for off-task behavior.

You do not need to overhaul your reinforcement schedule. Keep the reinforcers flowing at strong rates. Instead, audit the room: shiny posters, spinning toys, or a busy bulletin board can hijack attention. Strip visual clutter, use neutral table covers, and seat the child away from high-traffic areas. You will get better stimulus control without touching the reward plan.