Work

Beyond behavior: a neurocognitive agenda for investigating the neural underpinnings of successful high-technology augmentative and alternative communication in adults

Year: 2026

Type: article

Abstract: Purpose: Research has shown that augmentative and alternative communication (AAC) has the potential to function not only as a compensatory communicative strategy, but also as a tool to facilitate language recovery for people with aphasia. However, much work remains in order to understand the brain changes associated with AAC-driven recovery. The purpose of this article is to highlight the need for neurological research on high-technology AAC use, and to advance that research agenda by proposing the Transformation of Representation Across Neurocognitive Systems for Concept to External Navigation and Display (TRANSCEND) framework, a testable model of language production for people with aphasia who use AAC. We also argue for fNIRS as a promising neuroimaging tool that offers the advantage of allowing ecologically valid AAC use during experimental tasks. Conclusion: The TRANSCEND framework, a dual-route neurological model that begins with concept retrieval and leads to either verbal or AAC output, provides a foundation for future research that teases apart the neural underpinnings of motor, speech, and language aspects of AAC use.

Source: Frontiers in Human Neuroscience

DOI: 10.3389/fnhum.2026.1847242

Authors: Szu-Han Kay Chen, Marisa Nagano, Laura M. Gonnerman, Hsinyi Tanya Liu, Erin L. Meier

Institutions: University of New Hampshire, University of South Dakota, Northeastern University

Language: English

Topic: Assistive Technology in Communication and Mobility

Subfield: Occupational Therapy

Field: Health Professions

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $3,801