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Neurological and
Cognitive Impairments:
Students with neurological and cognitive impairments such as dyslexia, epilepsy,
learning disabilities, attention deficit-hyperactivity disorder, autism,
short-term memory, or mental retardation need consistent navigation, contextual
clues, and multiple representations of information. Users with short-term memory
problems also find it difficult to navigate through software in which the icons
and images change from one screen to the next. Most users with neurological and
cognitive impairments can benefit from multiple representations of text; for
example, combining audio and text for all information. Receiving the message in
multiple forms helps the user to draw on visual and auditory skills to better
understand and make sense of the material presented. Finally, for students with
photosensitive epilepsy, a flashing or blinking image between 2 Hz and 55 Hz may
trigger an epileptic seizure. |
