Is autism a preventable disorder of verbal behavior? A response to five commentaries.

Fisher et al. (2004) wrote a reply to five commentaries. The paper defends the idea that autism is learned, not hard-wired. It says early reinforcement history can shape the very behaviors we later call autism.

The authors use Skinner’s verbal operants to explain how missed teaching moments could snowball. They argue that better contingency management in the first two years might prevent the full syndrome.

There are no new data. The piece clarifies that the ‘preventable’ claim is about early learning, not blame. It urges practitioners to watch and shape babble, eye contact, and first words as they would any operant.

Gwynette et al. (2020) and Eisenhower et al. (2006) give single-case proof. They show that withholding toys until the child speaks, or dropping quick facts during mastered tasks, can grow new verbal responses. These studies act out the early-contingency plan W et al. only sketched.

Tincani et al. (2020) map sixteen years of SGD work and find most studies still drill multiply-controlled mands. Their review implies the field has not taken the prevention advice to heart; we keep fixing holes instead of pouring the foundation early.

Amore et al. (2011) extends the same logic to toddlers with Down syndrome, showing first imitations and requests can be shaped before age three. No contradiction—just the same playbook in a new population.

If early contingencies build autism features, you can act sooner. Watch infants at risk. Reinforce eye contact, joint attention, and first sounds on dense schedules. Coach parents to wait for vocal requests before handing over toys. These tiny moves could bend the developmental path before the diagnosis is ever made.