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Updated: Jan 22, 2026
10:33
Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury
Published on: August 14, 2019
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Visual processing patterns of adults with traumatic brain injury when viewing image-based grids and visual scenes
Jessica Brown1, Amber Thiessen2, Tonya Freeland3
1a Speech, Language, & Hearing Sciences, University of Arizona , Tucson , AZ , USA.
Summary
Visual scene displays are more effective for individuals with traumatic brain injury (TBI) using augmentative and alternative communication (AAC) than grid displays. Participants with TBI showed less efficient visual processing with grid displays, indicating greater cognitive effort.
Area of Science:
- Neuroscience
- Rehabilitation Medicine
- Human-Computer Interaction
Background:
- Traumatic brain injury (TBI) often necessitates augmentative and alternative communication (AAC) due to cognitive and literacy deficits.
- Image-based AAC displays, such as grid displays and visual scene displays, are common supports.
Purpose of the Study:
- To compare visual processing patterns and cognitive effort between grid and visual scene displays in adults with and without TBI.
- To evaluate the efficiency of different AAC display types for individuals with TBI.
Main Methods:
- Eye-tracking technology was used to monitor visual processing patterns.
- 13 adults with TBI and 13 neurotypical adults interpreted themes in grid and visual scene displays.
Main Results:
- Both groups required more visual fixation time and showed patterns of greater cognitive effort (more short fixations) for grid displays compared to visual scene displays.
- Participants with TBI were less efficient than controls in interpreting themes on both display types.
Conclusions:
- Visual scene displays may be more effective than grid displays for representing complex concepts for individuals with TBI.
- Findings suggest visual scenes reduce cognitive load and improve communication efficiency for TBI survivors using AAC.
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