by DON DALTON
The following narrative is meant to
describe typical assistive technology systems and
solutions available to remove the "dis"
from various disabilities as they relate to the
job description. The purpose of computer related
assistive technologies is to assist the disabled
to perform work on an equal basis with their non-disabled
peers. Emphasis will be placed on explaining the
technology required. There are over 4000 pieces
of available computer related assistive technology,
therefore, recommended technology will be in order
according to popularity, efficient use, and most
productive. Assistive technology solutions are not
rubber stamped, thus the following recommendations
are not necessarily the answer to all needs.
ORTHOPEDIC IMPAIRMENTS
The following solutions help a person
that is physically impaired use a computer. The
largest orthopedic related problem in accessing
the computer is inability to use fingers, hands
or arms. The most popular solution currently is
voice recognition. Voice recognition consists of
a software package that combines with a microphone
to allow voice command, control, and text entry
to the typical computer. An appropriate voice recognition
system should allow the user to operate a computer
without ever touching the keyboard. Such systems
allow text entry at a rate of 80 to 100 words per
minute. As long as the person is able to articulate
somewhat consistently, voice recognition is the
most productive and cost-effective solution. There
are a variety of alternative keyboards available.
Some have large, sensitive keys; Dvorak's one handed
keyboard facilitates the use of a single hand. For
people with control problems there is an overlay
available to help guide the fingers to the appropriate
key. Several keyboards allow the user to adjust
them to different angles which helps the user to
type with his or her hands in the most comfortable
position. Head-mounted mouse controllers are also
available. Combining these devices with on-screen
keyboards allow the user to control the computer
with head movement. With current technology a person
could control a computer with nothing more than
a single switch. Granted, this method is slow, but
it does provide independence to the user. Environmental
Control Units (ECU) are included under orthopedic
impairments, however, anyone with a severe disability
can control his/her environment with an Environmental
Control Unit. The user can control appliances, lights,
drapes, television, stereo, VCR, door locks, air
conditioning, etc. Any infrared device can be controlled.
Most appliances can be controlled. Any input device
described in this document can be implemented to
operate the ECU. For example, you could control
your environment with nothing more than your voice.
VISUAL IMPAIRMENTS
The following solutions help a person
with either low or no vision to use the computer.
Visual impairments are divided into these two, very
distinct areas. For low vision users there are screen
enlargement software packages that can enlarge the
screen up to more than sixteen times. There are
large print labels for the keyboard. Large monitors
provide larger print to the low vision user. Blind
users need a screen review package and a speech
synthesizer. The screen review package is a memory
resident program that speaks the contents of any
software program on the screen through a speech
synthesizer. A blind user can then hear what's on
the screen spoken to him/her. A document reader
consists of a flatbed scanner, software, a speech
synthesizer, and a computer. When a document is
placed on the scanner bed, the computer and software
read the document and, through the use of voice
synthesis, "speak" it to the end user.
A blind individual can read something as ordinary
as his/her electric bill or a novel, magazine, or
any other document for that matter. Braille readers
can read the screen by using a refreshable Braille
output device which features ever-changing Braille
cells. Finally, pocket computers or organizers are
available with voice output instead of the traditional
monitor.
AUGMENTATIVE COMMUNICATIONS
The following solutions help a person
who cannot articulate to communicate with others
via the spoken word through the implementation of
voice synthesis amongst other things. Today's voice
synthesizer can produce not only a man's voice,
but also women's and children's voices. These synthesizers
are clearly understandable and a far cry from early
phoneme-generated speech. Coupling these synthesizers
with input devices such as an on- screen keyboard
and a head-activated switch enables the severely
disabled to speak using a single switch. The addition
of word completion software makes the system more
efficient. There are also word processors available
that include this feature. There are stand-alone
devices that allow you to record your own multi-channel
custom vocabulary and selectively play it. For example,
a young, non-verbal girl might wish to use her mother's
voice to communicate with others. These compact
devices can easily be carried in pocket or purse.
HEARING IMPAIRMENTS
The following solutions help the deaf
to access computer technology and communicate with
others. A very simple software package that causes
the computer monitor to flash when the computer
beeps is extremely helpful to a hearing-impaired
user. There is also TDD software available for computers.
A TDD is a device which allows the hearing- impaired
to communicate via the telephone by allowing them
to type their messages back and forth. Telephones
with built-in amplification to make the handset
louder are also available. Finally, personal amplifiers
that fit in your shirt pocket with very directional
microphones are available to assist the hearing-impaired
to communicate and understand others.
LEARNING DISABILITIES
The following solutions may help those
with learning disabilities or dyslexia to overcome
their disabilities. Many forms of dyslexia may be
helped through appropriate use of audio feedback
systems. The use of screen review software and a
voice synthesizer allows the dyslexic typist to
hear what he/she is typing. This is virtually the
same software/hardware package that a person with
blindness would use. When a word is improperly typed
it sounds incorrect to the typist and can be corrected
immediately. Certain learning disabilities can be
overcome by simply changing the color combination
on the computer monitor. Certain colors present
more clearly to the user. There is a software package
that automatically pronounces, spells, and defines
each word entered from the computer keyboard. Computer
solutions need not be expensive or high tech. If
a dyslexic person constantly types 'dri' when he/she
wants 'dir' for a directory command, a simple batch
file can be written to execute 'dir' when 'dri'
is typed, thus negating the problem at no cost.
COGNITIVE IMPAIRMENTS, DEVELOPMENTAL
DISABILITIES, TRAUMATIC BRAIN INJURY AND MILD MENTAL
RETARDATION
There are several systems available
to assist people with cognitive impairments. There
are commercial software packages that provide repetitive
tasks that begin at very basic levels and expand
to more complex levels. Also, simple children's
games can be effective in improving ability. Training
in various popular application programs can assist
in obtaining employment in office-related jobs.
Often, people with some degree of cognitive challenge
or impairment are placed in "workshop"
situations when they are indeed much higher functioning.
Yet their aspirations are no different than anyone
else's. People with disabilities have to be good
managers of time in that their disability requires
a good deal of management. We have worked with people
that started typing at two to three words per minute
and increased to sixty plus words per minute. Experience
has proven to us time and time again that those
with the greatest perceived disabilities are the
most persistent. With appropriate training, jobs
such as data entry, transcription, and word processing
are realistic goals by certain individuals with
cognitive challenges. Also, the same solutions that
apply to those with learning disabilities may apply
to individuals with other cognitive disabilities.
Owing to the broad span/level of disability, emphasis
should be placed on dealing one-to-one with individuals
who are managing a disability that impacts thought
processes or other cognitive ability.
SERVICES
Assistive Technologies, Inc. offers
a broad range of services. Our Diagnostic Vocational
Exploration (DVE) identifies the appropriate assistive
technology, builds on individual strengths, helps
set goals, defines necessary training, provides
generic quotation, and builds self-esteem. Training
programs are one-on-one, small or large group. Workplace
Assessments are available to make sure that all
ADA issues are addressed. Job Retention evaluation
helps you retain your valued employees that become
disabled. Our consulting services help you to be
certain that integration of assistive technology
to your platform proceeds smoothly. Finally, any
recommendations made by Micro Overflow staff are
guaranteed to operate as suggested.