Related Experiment Video
Updated: May 8, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
Published on: September 7, 2022
Impact of PECS tablet computer app on receptive identification of pictures given a verbal stimulus
Jennifer B Ganz1, Ee Rea Hong, Fara Goodwyn
1Department of Educational Psychology, Texas A&M University , College Station, TX , USA.
Objective:
The purpose of this brief report was to determine the effect on receptive identification of photos of a tablet computer-based augmentative and alternative communication (AAC) system with voice output.
Methods:
A multiple baseline single-case experimental design across vocabulary words was implemented. One participant, a preschool-aged boy with autism and little intelligible verbal language, was included in the study.
Results:
Although a functional relation between the intervention and the dependent variable was not established, the intervention did appear to result in mild improvement for two of the three vocabulary words selected.
Conclusion:
The authors recommend further investigations of the collateral impacts of AAC on skills other than expressive language.

