Assessing Student's Needs for Assistive Technology (ASNAT)

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Chapter 2 – Computer Access ♦ The Computer- Cause and effect is the basic and underlying skill required for computer interaction due to the number of adaptations available to users today. The computer is accessible to individuals from the very young to the very old, with and without disabilities. The computer can be used to establish the above stages of switch use. Or it can empower the user who has established the above stages to engage in more diverse and complex tasks. The computer is a tool for individuals with disabilities to experience independence, control, immediate feedback, and successes, and to become active participants in the world around them. A final thought as you leave this section, only if a child does not have adequate hand use, head control, or toe use or is unable to use voice recognition, should you consider switch access. A wide variety of switches is available to meet almost any student’s needs but consider switches last because they are the least efficient method of accessing a computer, augmentative communication device, or other applications and devices. A table of switch categories and advantages and disadvantages is provided as a guide to selection. Assessing Students’ Needs for Assistive Technology (2004) 72
Chapter 2 – Computer Access Advantages and Disadvantages of Various Switch Types Category Advantages Disadvantages Pressure • Large variety available covering most characteristics • Some also serve as a single message communication device • Inexpensive to make yourself • Require some strength Lever • Ability to pass through – • Less durable student movement not stopped • Some safety concerns – by the switch projects • Very little strength required • More travel required than most Muscle sensor • Minimal muscle movement • Very little feedback, if any required • Less reliable • Stays with student – mounted on body • Might be invasive Sound • No strength required • Very little feedback, if any • Alternative to motor action • Disruptive to others • Mounting is not an issue • Ability to make sound may be inconsistent from day to day Pneumatic • Sip & puff types do not require • Requires more strength (except motor movement sip & puff types) • Less durable – more malfunctions Tilt • Can be used to reinforce good body positions • Stays with student – mounted on body • Very little feedback, if any Pull • Minimal strength required • May require more travel than • Alternative to pushing action most Photosensitive • No strength required • Could be difficult to learn • Very little feedback, if any • Requires spatial concepts Assessing Students’ Needs for Assistive Technology (2004) 73
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Chapter 1 - Assistive Technology As
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Chapter 9 - Documenting Assistive T
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Chapter 10 - Funding Assistive Tech
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Assistive Technology Vendor Table C
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Assistive Technology Vendor Table M
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Assistive Technology Vendor Table N
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Assistive Technology Vendor Table C
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Assistive Technology Vendor Table V
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Appendix Additional Vendors: Assess
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WATI Product Catalog WATI PRODUCT C
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WATI Product Catalog Assistive Tech
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WATI Product Catalog School Profile
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WATI Product Catalog Wisconsin Assi
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Assistive Technology Assessment For
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Assessing Student's Needs for Assistive Technology (ASNAT)

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