Saturday, October 31, 2015

Presentation Assistive Technologies for Cognitive Augumentation


Pros and Cons Assistive Technologies for Cognitive Augumentation


Apply the human activity assistive technology model to help identify appropriate assistive technologies for individuals with cognitive disabilities

 This is a framework describing the major elements of an assistive technology system.  It consists of four parts: 1) activity, 2) context, 3) human, and 4) assistive technologies.  Activities are categorized within three basic performance areas: 1) activities of daily living, 2) work and productive activities, and 3) play and leisure.  The context includes four major categories: 1) the setting (e.g., at home, at work, in the community), 2) social context (with peers, with strangers), 3) cultural context, and 4) physical context (light, sound, heat).  The person with a disability who needs assistive technology is viewed as the operator.  The general underlying abilities that individuals use to perform activities and tasks are termed intrinsic enablers.  Intrinsic enablers are grouped into three categories: 1) sensory input, 2) central processing, and 3) effectors (motor).  The final component is the assistive technology.  The assistive technology is described as the extrinsic enabler because it provides the basis by which human performance is improved in the presence of a disability.  The assistive technology domain consists of four interacting components: 1) the human/technology interface, 2) the processor, 3) the environmental interface, and 4) the activity output. The human activity and assistive technology model is proposed as a framework for understanding the place of assistive technology in the lives of persons with disabilities, guiding both clinical applications and research investigations. The model has four components - the human, the activity, the assistive technology, and the context in which these three integrated factors exist.

Identify cognitive skills that underlie functional performance for persons with cognitive disabilities

 Defining cognitive disability is not easy, and definitions of cognitive disability are usually broad. Persons with cognitive disabilities may have difficulty with various types of mental tasks. Intellectual disabilities, also known as developmental delay or mental retardation, are a group of disorders defined by diminished cognitive and adaptive development. Affecting more males than females, they are diagnosed in between one and three percent of the population. Many cognitive disabilities have a base in physiological or biological processes within the individual, such as a genetic disorder or a traumatic brain injury. Other cognitive disabilities may be based in the chemistry or structure of the person's brain. Persons with more profound cognitive disabilities often need assistance with aspects of daily living. Persons with minor learning disabilities might be able to function adequately despite their disability, maybe to the point where their disability is never diagnosed or noticed. Sometimes it is more useful to avoid the medical perspective of cognitive disability and view them from a functional perspective instead. A Functional disability perspective ignores the medical and behavioral causes of cognitive disability and focuses on the abilities and challenges the person with a cognitive disability faces. Functional cognitive disabilities may involve difficulties or deficits involving problem-solving, attention, memory, math comprehension, visual comprehension, reading, linguistic, and verbal comprehension.

Understand what cognitive faculties are commonly compromised in specific disorders

 
For those with mild to moderate dementia, assisted living facilities are a great choice for individuals with memory impairment without fully relinquishing independence. When choosing and assisted living facility for someone with dementia, be sure to identify some important factors:
  • Secure Areas: Some assisted living facilities are designed with the mild dementia patient in mind. Entire wings or even buildings may be designated for individuals suffering from memory impairment. They often provide more supervision and security as does the rest of the facility. These communities are staffed with caregivers who are accustomed to the impulsivity and poor safety awareness exhibited by many who suffer. The staff is trained in how to respectfully and humanely redirect the resident back to the appropriate activity or location.

  • Medication Assistance: Most assisted living facilities can aid in the administration of medication. This may be vital for a resident who is dealing with memory impairments. Knowing when to take what little white pill can be difficult for those without cognitive decline, let alone for those who do. Licensed nurses are qualified to distribute doctor-prescribed medications and can ensure compliance. This is also helpful when communicating with primary care physicians since staff can alert to an increase in behaviors or a decrease in functional abilities and know it is not a result of missed medications.

  • Rehabilitation Programs: Many memory centers will also offer programs designed to slow the progression of this degenerative disease or alleviate symptoms associated with dementia like agitation and aggression. Sensory stimulation, cognitive therapies, physical and occupational therapies are all included in these types of programs. There has been a lot of positive research regarding alternative therapies such as music, art therapies which tend to help reduce agitation, although no long term benefits have been identified. Most therapies and programs are performed in group settings which allows for greater supervision of the residents as well as the socialization that is needed.
Understand the role of assistive technologies in aiding cognitive function

Technology can help students with behavioral issues. In many ways, the same is true for students suffering from serious illnesses. The comfort of a familiar environment and the ability to work at their own pace that is characteristic of online courses can help these student. For example, students who fall among the autism spectrum can benefit from both assistive technologies and the limited distractions of online courses. However, any student interested in online education as a way of handling their disability should make sure that their program complies with accessibility standards.  The Americans with Disabilities Act (ADA) of 1990 requires that people with disabilities have equal access to public programs and services. According to this law, no otherwise qualified individuals with disabilities shall, solely by reason of their disabilities, be excluded from the participation in, be denied the benefits of, or be subjected to discrimination in these programs. Besides elevators in buildings, reserved spaces in parking lots, and lifts on buses, the ADA accessibility requirements also apply to Internet-based programs. As the United States Department of Justice clarified, “Covered entities that use the Internet for communications regarding their programs, goods, or services must be prepared to offer those communications through accessible means as well.” Hopefully, the days are over when disabled students are shunted off into isolated classrooms, without the ability to participate in the regular routines of education and develop social relationships with their peers. We have such effective new assistive tools generated by developments in electronic and information technology that disabled individuals, some of whom even twenty years ago were unable to communicate with others, can now enjoy all the benefits of education, expand their intellects and abilities, and live their lives to the fullest. The key feature of contemporary computer-based educational technology is that it is focused on accessibility and offers almost limitless flexibility, making it adaptable to all varieties of disability. This endless opportunity is truly what education should be all about, for everyone.

 Identify and describe some of the assistive technologies that are currently available to assist individuals with cognitive impairments

The new forms of assistive technologies are often nothing short of miraculous. For example, watch this footage of theoretical physicist and world-famous genius Stephen Hawking give a lecture to a huge student audience. Hawking suffers from amyotrophic lateral sclerosis (ALS) and has almost no ability to move or speak on his own. Instead, he uses speech-generating technology in which computer software translates what he types on a keyboard (which he can do only with small physical movements of two fingers or his cheek) into a synthesized voice. In addition, the computer software includes auto-correct, so that he only needs to type a few letters before the computer recognizes and types out the entire word for him. Stephen Hawking is one of the best examples of how assistive technology has changed education: without such technology, Hawking would not have been able to make his major contributions to our understanding of the world, and students would not be able to learn from him. Hawking may be the most famous user of assistive technology, but there are so many new forms of assistive technology available to today’s students that it is difficult to list them all! There are technologies for every category of disability:

·         Speech-Recognition software: Students dealing with blindness/visual impairment, or with physical limitations that prevent them from typing on a keyboard, can use text-to-speech devices (mobile and otherwise) to compose their assignments. When using these programs, students speak into a microphone, which then translates their words into typed documents. The most well-known of the software programs that perform this task is Dragon Naturally Speaking, which also recognizes voice commands such as “insert exclamation point.”

·         Text-to-Speech software: This kind of assistive technology helps students with visual impairments by allowing them to listen to the text that appears on a computer screen. This is a huge improvement over Braille because once the program is installed on the computer, it can read anything on the screen, no matter what format it is in (e.g. .pdf or website) with no waiting for a Braille translation. This enables students to participate in online activities, use email and text, and have immediate access to course materials. There are many free versions of this software available online, such as Natural Readers.

·         Visual Aids: This broad category of assistive technology includes screen magnification software that enlarges portions of the screen where the reader directs the mouse; screen reader software that translates screen text to Braille, text-to-speech programs; audio texts. All of these can be used by students of many different kinds of visual disabilities.

·         Audio Aids: Another broad category of assistive technology, these student aids include sound amplification tools; alerting devices that use flashing lights or icons on the computer screen rather than sounds to signal users; close-captioning for videos; TTY (TDD) also known as Telecommunication for the Deaf; phones enabled with Voice Carry-Over (VCO) technologies that allow students with hearing difficulties to communicate over the phone with their own voice.

·         Physical Aids: For students with physical mobility, stability, motor coordination, and range of motion challenges, several technologies are available to assist them in completing their schoolwork, including audio books for students who cannot physically handle books; keyboard adapters such as key guards to prevent mistyping from tremors or loss of control; voice recognition software for students who cannot type.

 

Wednesday, October 28, 2015

Glossary of Terms Assstive Technologies for Cognitive Augmentation



Glossary of Terms
Definitions
Examples
Alternative Input
In assistive technologies, a different way of accomplishing the same task.
Allow individuals to control their computers through means other than a standard keyboard or pointing device.
Alternative Output
 
 
Attention
Is the behavioral and cognitive process of selectively concentrating on one aspect of the environment while ignoring other things?
Notice taken of someone or something; the regarding of someone or something as interesting or important.
Attention Deficit Hyperactivity Disorder
Is a condition in which a person has trouble paying attention and focusing on tasks, tends to act without thinking, and has trouble sitting still?
  • Trouble paying attention.
  • Trouble sitting still for even a short time.
  • Acting before thinking.
Cerebral Vascular Accident
Is damage to the brain caused by a disruption of the blood supply to a part of the brain?
stroke
Cognitive Prosthesis
Any tool that helps you remember things or think better.
A clock or calculator
Dementia
Is a decline of mental abilities such as thinking, reasoning, and memory?
is the loss of mental functions such as thinking, memory, and reasoning that is severe enough to interfere with a person's daily functioning
Developmental Disabilities
Is a diverse group of severe chronic conditions that are due to mental and/or physical impairments?
Severe and long term problems.
Encoding
The process of putting a sequence of characters (letters, numbers, punctuation, and certain symbols) into a specialized digital format for efficient.
Store and recall information.
Generalization
Of a concept is an extension of the concept to less-specific criteria. It is a foundational element of logic and human reasoning
The process of responding to a stimulus similar to but distinct from the conditioned stimulus
Information Processing
Is a model describing how humans think critically?
The acquisition, recording, organization, retrieval, display, and dissemination of information.
Intellectual Disabilities
Is a below-average cognitive ability with three (3) characteristics: Intelligent quotient (or I.Q.) is between 70-75?
Mental retardation
Media Presentation
Differs from a normal presentation in that it contains some form of animation or media
is a message that uses multimedia
Memory
  1. The process in which information is encoded, stored, and retrieved.
The mental capacity or faculty of retaining and reviving facts, events, impressions, etc., or of recalling or recognizing previous information.
Mild Cognitive Disabilities
Is used interchangeably with intellectual or developmental disability?
An intermediate stage between the expected cognitive decline of normal aging and the more serious decline of dementia.
Problem Solving
Consists of using generic or ad hoc methods, in an orderly manner, for finding solutions to problems.
Is related to other terms such as thinking, reasoning, decision making, critical thinking, and creativity?
Prompting
Procedures include any help given to learners that assist them in using a specific skill.
strategies used to increase the probability of correct responding and opportunities for positive reinforcement for
Smart House
Boasts the latest in home technology coupled with eco-friendly features and energy-efficient design.
Technology coupled with eco-friendly features and energy-efficient design.
Stimuli Control
are events in the environment that influence behavior
Is a term used to describe situations in which a behavior is triggered by the presence or absence of some stimulus?
Traumatic Brain Injury
An external mechanical force causes brain dysfunction.
Injury is defined as damage to the brain resulting from external mechanical force, such as rapid acceleration or deceleration, impact.
Vigilance
The action or state of keeping careful watch for possible danger or difficulties.
abnormal state or condition of being unable to sleep

Thursday, October 22, 2015

Sensory Aids For Persons with Hearing Impairments


Pros and Cons Sensory Aids for Persons with Auditory Impairments


Fundamental Approaches to Auditory Sensory Aid

The auditory-oral approach is based on the fundamental premise that acquiring competence in spoken language, both receptively and expressively, is a realistic goal for children who are deaf or hard of hearing. Further, this ability is best developed in an environment in which spoken communication is used exclusively. This environment includes both the home and the classroom. Elements of the auditory-oral approach that are critical to its success include:

  • Parent involvement
  • Appropriate amplification
  • Consistent quality speech training
  • Developmentally appropriate language instruction
  • Range of placement option.

PROS

The primary benefit is being able to communicate directly with a wide variety of individuals. This ability brings with it options in terms of education, vocation, and social life. Statics reported that 88% of the 100 16- and 17-year-olds they studied had proficiency with spoken language and had high levels of speech intelligibility. The average reading ability of these students was at 13- to 14-year-old levels, which is approximately double the national average for all children who are deaf.

CONS

As with every approach to educating children who are deaf or hard of hearing, not all children will be successful. Unanswered questions remain about auditory functioning (even some hearing children cannot use their hearing well), language processing (some children may also have additional language disorders), and learning styles (some learning styles inhibit the attention and vigilance needed to develop orally). As research provides more information, the small number of children who cannot benefit from auditory-oral education will diminish. Fortunately, the availability of effective amplification removes severity of hearing loss as a limitation of auditory-oral education.

Aids for Persons with Auditory Impairments

Hearing aids can be analog or digital. Older analog hearing aids can be programmed with settings for various listening environments according to the user's preferences. Digital hearing aids, usually more expensive than analog, can be fine-tuned for specific frequencies and have more programming flexibility. 

  • Behind-the-ear (BTE) hearing aids

A plastic case that hooks behind the ear houses the electronics. It's attached to a customized, plastic ear mold that fits in the outer ear.

 Pros:

 Good for mild to profound hearing loss, allows for the most amplification among all types, long battery life, easy to clean

Cons:

 May be visible, can be difficult to wear with eyeglasses 

  • Open-fit behind-the-ear (BTE) hearing aids

The miniature digital component fits completely behind the ear, eliminating the need for a mold. A small tube runs into the ear canal.

Pros:

 Voices sound less "plugged up," less visible than other hearing aids, the tube's design keeps it away from earwax -- good for people who have wax buildup -- and allows the ear canal to remain open

Cons:

 Smaller batteries don't last as long as larger ones, small size may limit ability to make manual adjustments, may be visible, not good for severe to profound hearing loss 

  • In-the-ear (ITE) hearing aids

A small, custom-molded plastic case sits in and completely fills the outer ear and has no external wires or tubes.

Pros:

 Good for mild to severe hearing loss, optional "telecoil" makes it easier to hear phone conversations and some public sound systems, has volume control

Cons:

 Is visible in the ear, may be sensitive to wind noise, not good for severe to profound hearing loss 

  • In-the-canal (ITC) hearing aid

A tiny case, custom molded to fit the size and shape of the ear canal, sits partly in the ear canal.

Pros:

Good for mild to moderately severe hearing loss, less visible than other hearing aids, usually works well with the telephone, less sensitive to wind noise

Cons:

Not good for severe to profound hearing loss, small size may make it difficult to adjust and remove, may cause some feedback 

  • Completely in-the-canal (CIC ) hearing aid

A tiny case is nearly hidden deep in the ear canal. Usually has a cord or tiny handle to aid in removing it.

Pros:

 Good for mild to moderately severe hearing loss, less visible than other hearing aids, usually works well with the telephone, less sensitive to wind noise

Cons:

 Not good for severe to profound hearing loss, small size may make it difficult to adjust and remove, no volume control, too small to hold devices like telecoil, smaller batteries don't last as long as larger ones, can become clogged with wax and require repairs.