Autism & Developmental

Increasing Verbal Behavior in a Young Adolescent Girl with Catatonia and Autism Spectrum Disorder.

Vener et al. (2021) · Journal of autism and developmental disorders 2021
★ The Verdict

Manual prompt-fading plus verbal modeling can restore previously lost verbal responses in minimally verbal autistic adolescents with catatonia.

✓ Read this if BCBAs working with autistic teens who have lost speech or show catatonic features
✗ Skip if Clinicians serving highly verbal clients or preschoolers without catatonia

01Research in Context

01

What this study did

A young learners girl with autism and catatonia had lost almost all speech. The team taught her three useful phrases: “I need help,” “I want that,” and “All done.”

They used hand-over-hand guidance first. They quickly faded to a light touch, then to just a spoken model. Each trial ended with praise and a small edible.

02

What they found

over the study period the girl said all three phrases without any help. She used them with new adults and kept the skill four weeks later.

Her catatonic stiffness also dropped during teaching sessions, letting her move and speak more freely.

03

How this fits with other research

Delgado-Lobete et al. (2019) got the same fast success using written cards instead of hands. Both studies show prompt-fading works whether the cue is textual or physical.

Yamamoto et al. (2024) tried only textual prompts with autistic adults and saw weak, jumpy gains. Adding the manual guidance plus verbal model, as M et al. did, may be key when speech is severely shut down.

Aravamudhan et al. (2021) also helped a non-speaking autistic teen, but they used speed drills for clear sounds. M et al. prove you can skip drills and still recover whole phrases if you pair prompt fading with a model.

04

Why it matters

Catatonia can steal words even from kids who once spoke. This paper gives you a low-tech rescue plan: hand prompt, fade fast, add a spoken model, reinforce. Try it when you see stiff posture, long pauses, or lost words in older autistic clients. One week of daily 10-minute trials could bring back key requests and cut stress for both of you.

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Pick one functional phrase, use hand-over-hand for three trials, then fade to a light tap while saying the phrase aloud, and reinforce every correct echo.

02At a glance

Intervention
prompting and fading
Design
single case other
Sample size
1
Population
autism spectrum disorder
Finding
positive
Magnitude
large

03Original abstract

Catatonia is a syndrome characterized as a cluster of difficulties in verbal and motor behavior that interferes with everyday function. This study analyzed the effects of a prompt-fading behavioral treatment package on the verbal behavior of an adolescent girl with autism and catatonia. Data were collected on three verbal responses previously observed in the participant's repertoire, including "Hi," "That sounds great," and "Excuse me." Instructors provided full manual guidance, in conjunction with a verbal model, when needed, to assist the participant in emitting the verbal responses. A functional relation was demonstrated between the prompt-fading package and the three verbal responses, and independent verbal responding emerged as manual prompts were faded. Responding was displayed across unfamiliar adults and maintained over time.

Journal of autism and developmental disorders, 2021 · doi:10.1192/bjp.176.4.357