Concepts, Models, Type of Disabilities Flashcards
What assistive technologies are used for blindness?
Screen readers and refreshable braille devices
What assistive technologies are used for low vision?
Screen enlargers and screen readers
What assistive technologies are used for color blindness?
Color enhancement overlays or glasses
What assistive technologies are used for deafness?
Captions and transcripts
What assistive technologies are used for motor/mobility disabilities?
Head wand, mouth stick, alternative keyboards, eye gaze tracking, voice activation
What assistive technologies are used for cognitive disabilities?
Screen readers, screen overlays and augmentative communication aids
Which model defines disability in terms of biological impairments, or as a problem caused by medically-diagnosed genetic disorders, disease, trauma, or other health conditions?
Medical model
The legal definition of disabilities often relies on the assumptions of which model?
Medical Model
Which model helps decide whether a person should receive government financial benefits, or whether an employer or school is required to provide accommodations?
Medical Model
What are the strengths of the Medical Model?
Acknowledges a biological condition that creates a disadvantage
criteria helps medical professionals make decisions about treatment
criteria for who should receive government assistance
What are the weaknesses of the Medical Model?
Focuses on biology and overlooks impact of design on social environment
Assigns disability as a characteristic or label
Definitions might be too narrow and exclusive
Individuals have to prove their disability over and over again; dehumanizing
Which model points out that society creates disabling conditions, and that “disability” is an avoidable condition caused by poor design?
Social Model
Which model focuses on the human rights of people with disabilities?
Social Model
Which model provides meaningful context for accessibility professionals?
Social Model
What are the strengths of the Social Model?
Expectation that society will create inclusive environments, and not that people need to accept lower quality of life
Empowers designers to think broadly about usability for all
What are the weaknesses of the Social Model?
De-emphasize physical reality of a disability too much
A disability shouldn’t be minimized so much that people are afraid to talk about it
Which model takes a practical approach by identifying the functional impairments, or limitations, that are a result of disability?
Functional Solutions Model
Which model takes a practical approach by identifying the functional impairments, or limitations, that are a result of disability and seeks solutions to fix the problems with advancements in technology or methodology?
Functional Solutions Model
What are the strengths of the Functional Solutions Model?
Focuses on ideas, technologies, and innovations that benefit people with disabilities.
What are the weaknesses of the Functional Solutions Model?
Might be too focused on technological solutions that opportunities are missed to address the larger social issues.
Which model focuses on personal identity and groups developing a culture based on shared experiences?
Social Identity or Cultural Affiliation Model
What are the strengths of the Social Identity or Cultural Affiliation Model?
Self-acceptance and empowerment; accepting disability can be important part of emotional and psychological well-being
Political strength; form alliances and advocacy networks to make it easier to petition for political change
What are the weaknesses of the Social Identity or Cultural Affiliation Model?
Strongly identifying with other people with disabilities can make people feel excluded from the rest of society
Which model treats disability as unfortunate of tragic conditions worthy of special treatment?
Charity or Tragedy Model
People with disabilities are in the position of the receivers; the “unfortunate” ones. Which model sets up this unequal power balance and an unhealthy social relationship between groups of people?
Charity or Tragedy Model
What are the strengths of the Charity or Tragedy Model?
Creates empathy and inspires able bodies people to genuinely assist people with disabilities
What are the weaknesses of the Charity or Tragedy Model?
Encourages unequal social and political relationships between people
Which model defines disability by a person’s inability to participate in work, and assesses the degree to which impairment affects a person’s productivity and the economic consequences for the individual, employer and the state?
Economic Model
What are the strengths of the Economic Model?
Recognizes the effect of bodily limitations on a person’s ability to work and that they may need economic support
What are the weaknesses of the Economic Model?
Creates a legally-defined category of people who are “needy” which can be stigmatizing. Can exclude people who don’t quite fit in the category.
Which model encourages people with disabilities to affirm their identity and feel comfortable in their own skin?
Affirmation Model
Which model is an activist model that emphasized the need for human rights?
Sociopolitical Model
Which model sees disability as a punishment or a condition meant to teach a lesson or to test a person?
Religious/Moral Model
Which model sees disability as something meant to be treated and managed by people with expertise and credentials?
Expert or Professional Model
Which model emphasizes therapy or rehabilitation to improve a person’s ability to function and compensate for the disability?
Rehabilitation Model
True or False: The Medical Model of disability focuses solely on the biological aspects of disability?
True
Which model of disability argues that disability is more of a result of inaccessible environments?
Social Model
What are some causes of blindness?
Glaucoma Accidents Diabetes Stroke Retinitis Pigmentosa Macular Degeneration (GADSRM)
How does the U.S. define Blindness?
Visual acuity of 20/200 with corrective lenses
Field of vision that is 20 degrees in the eye with the best vision
Why does the U.S. have a legal definition of Blindness?
Used solely to determine eligibility and participation in various programs (schooling, disability benefits, vocational programs, assistive device programs, and tax exemption programs)
Does not disclose what a person can or cannot see
What assistive technologies can be used for people who cannot see digital or electronic interfaces?
Screen readers
self-voicing interfaces
refreshable braille devices
What adaptive strategy can be used for people who cannot use screen readers on digital content and interfaces not designed with accessibility in mind?
Edit the markup to make it compatible with the assistive technologies used by blind people.
What assistive technologies can be used for people who cannot see when walking?
canes service animals GPS-based walking instructions raised tiles on the ground eliminate low-hanging architectural features clear pathways
What adaptive strategies can be used for people who cannot see signs or text on buildings?
Map and geolocation apps to announce names and descriptions
Braille labels
Tactile models of buildings or floorplans
What assistive technologies can be used for people who cannot see or feel controls on flat interfaces on consumer devices?
Alternative interfaces with tactile controls
Audio interfaces
Remote control through mobile apps
What adaptive technologies can be used for people who cannot read text on containers or packaging?
Embossed Braille (Braille stickers)
What condition of Low Vision causes faces and objects to appear blurry, and makes it difficult to distinguish specific features?
Blur
What condition of Low Vision causes everything to appear about the same brightness, making it hard to distinguish outlines, borders, edges and details?
Blur with Low Contrast
What condition of Low Vision causes blind spots, or innumerable dark gray spots that can cloud vision?
Cataracts
What condition of Low Vision causes people to see floating dark spots?
Diabetic Retinopathy
What condition of Low Vision causes people to see only a small area, have no peripheral vision?
Glaucoma
What condition of Low Vision limits vision to a smaller area on either the right or left side of both eyes?
Hemianopia
What condition of Low Vision is a disease that causes loss of vision in the center of the eye or the field of vision?
Macular Degeneration
What condition of Low Vision causes flashes of light in the vision field, or “floaters” that appear like dark debris in the field of vision?
Retinal Detachment
What assistive technologies can be used for users who find small text hard to read?
Screen magnifiers Device utilities to enhance contrast, colors or alter other aspects of visual appearance Screen readers Self-voicing interfaces Alternative large print versions Alternative digital versions
What adaptive strategies can be used when low contrast text is hard to read?
Software or hardware options to enhance contrast
Use accessible color palettes
True or False: Color-blindness means that a person cannot see any color at all?
False
What disability refers to the inability to distinguish between certain kinds of colors, even if the colors themselves appear quite different to people without the disability?
Color-blindness
What is the most prevalent form of color-blindness?
Red-green color-blindness
What are the subtypes of red-green color-blindness?
Deuteranopia and Protanopia
Which type of color-blindness is known as Tritanopia?
Blue-yellow color-blindness
How do people with Achromatopsia see color?
Grayscale
Which type color-blindness makes it hard to distinguish between reds, oranges, and greens?
Red-green color-blindness
What assistive technologies exist for people with color-blindness?
Corrective glasses
What adaptive strategies can be used for people who cannot distinguish between different color combinations?
Design in a way that does not depend on color to convey information
What assistive technologies exist for people who are both deaf and blind?
Refreshable Braille display in combination with a screen reader
What assistive technologies can be used for people who cannot see digital text?
Refreshable Braille device, or “printed” in a Braille embosser
What adaptive strategies can be used when audio cannot be heard by a user?
Text transcripts