Fig. 3: Cognitive loads of assistive technologies used by blind and partially sighted people.
From: Interactive wearable digital devices for blind and partially sighted people
a, Accessibility schemes for different forms of visual data56,58,68,96,171,185,186,187,188,189. b, Comparison of US National Aeronautics and Space Administration Task Load Index (NASA-TLX) scores for different accessibility schemes55,56,58,96,186,187,188,190,191. NASA-TLX scores that were not directly provided are estimated using the Raw TLX standard (in which sub-score ratings are averaged or summed) and exploration time, with all scoring converted to a 100-point scale. LLM, large language model. Part a: top right (3D-printed map), adapted from ref. 185, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Photographs: motorcyclists, Westend61/Westend61/Gettyimages; room, Westend61/Westend61/Gettyimages; horse and rider, Tina Terras & Michael Walter/Moment/Gettyimages.
