An in-depth case description of gaze patterns of an individual with cortical visual impairment to stimuli of varying complexity: Implications for AAC Design

Many individuals with Cortical Visual Impairment (CVI) are unable to meet their daily communication needs through natural speech. Augmentative and Alternative Communication (AAC) provides supports for individuals with complex communication needs, including those with CVI. However, many forms of AAC involve access via a visual modality. This presents specific challenges and requires special considerations to be made for assessment and intervention of individuals with CVI using AAC. This study used automated eye tracking technology to analyze the gaze patterns of one individual with CVI to stimuli of varying complexity that were taken from the CVI Range (Roman-Lantzy, 2007). Variations in stimulus complexity resulted in changes in allocation of visual attention. Overall, the participant engaged significantly longer with simpler images both when presented one at a time and also during a preferential looking task when two stimuli were presented. Results provide implications for the development of optimal AAC design for individuals with CVI.

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Work Title An in-depth case description of gaze patterns of an individual with cortical visual impairment to stimuli of varying complexity: Implications for AAC Design
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Open Access
Creators
  1. Krista M Wilkinson
  2. Sophie Wolf
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Perspectives
Publication Date September 1, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1044/2021_PERSP-21-00111
Deposited February 17, 2023

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  • Added Creator Sophie Wolf
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