Functional assessment and treatment of perseverative speech about restricted topics in an adolescent with Asperger syndrome.

One teen with Asperger's kept steering every talk to his favorite topic. The team set up a simple rule: talk on topic, earn points; drift off, hear a brief beep and no points.

They used a signaled multiple schedule. A green card meant "talk about anything." A red card meant "stay on the class topic." The red card times slowly grew longer across three chat topics.

Perseverative speech dropped sharply when the red card was up. On-topic turns rose at the same time. The gains held when a new adult ran the sessions.

Mantzoros et al. (2023) saw a similar drop using DRL for vocal stereotypy. Both studies show you can thin repetitive vocal behavior without aiming for zero.

Earlier group programs like Wuang et al. (2012) and Johnson et al. (2009) taught social skills to the same age group, but they met in classes. Carter et al. (2013) proves one-to-one DR can fix the same problem faster and in real conversation.

Ventola et al. (2016) found PRT lowered broad RRBs. The new study narrows the target to perseverative speech and gets a quicker, clearer change.

If a high-functioning teen hogs talk with narrow topics, you don't need a full social-skills group. Run a short DR phase with clear signals. A red card, a timer, and a point pile can cut the loop in a week. The skill then survives with teachers or peers. Use it next session when conversation derails.