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Updated: Jul 5, 2026

Interactive and Visualized Online Experimentation System for Engineering Education and Research
Published on: November 24, 2021
Generalization of a pictorial alternative communication system across instructors and distance
Jennifer B Ganz1, Jeff Sigafoos, Richard L Simpson
1University of Texas, San Antonio 78249, USA. jennifer.ganz@utsa.edu
Abstract:
Nonverbal individuals with autism spectrum disorders (ASD) often require the use of picture-based, aided augmentative and alternative communication (AAC) systems. Such systems are used widely, but little research has investigated the generalization of these devices to a variety of communicative partners and under a variety of conditions. We investigated use of a modified Picture Exchange Communication System (PECS) protocol to teach AAC-supported functional communication skills to a 12-year-old boy with autism. Results indicate that the participant was able to generalize his communication skills across a variety of instructors and to use functional non-verbal strategies to respond to communication obstacles.
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