Microswitch Technology to Promote Adaptive Responses and Reduce Mouthing in Two Children with Multiple Disabilities

This study assessed the viability of using microswitch clusters (combinations of microswitches) plus contingent stimulation to promote adaptive responding and to reduce aberrant behavior in two children with multiple disabilities. The results revealed that both children increased their adaptive responses, learned to perform these responses free from aberrant behavior, and maintained this level of performance three months later.

Should Heritage Languages be Incorporated into Interventions for Bilingual Individuals with Neurodevelopmental Disorders? A Systematic Review

Special education policies recognize the need for developing and preserving the heritage languages of individuals with disabilities. Yet there seems to be a disconnect between policy and practice. Should the heritage languages of bilingual individuals with neurodevelopmental disorders be incorporated into interventions? This review evaluated 18 studies that examined the effects of heritage language instruction on treatment outcomes for individuals with neurodevelopmental disorders. Overall, results suggest a small effect favoring interventions delivered in the heritage language versus interventions delivered solely in the majority language. In general, studies were also found to be of high-quality according to What Works Clearinghouse Standards. Findings are discussed in terms of recommendations for future research and practice.

An Upgraded Smartphone-Based Program for Leisure and Communication of People With Intellectual and Other Disabilities

Background: People with intellectual disability and sensory or sensory-motor impairments may display serious problems in managing functional daily activities as well as leisure activities and communication with distant partners. Aim: The study assessed an upgraded smartphone-based program to foster independent leisure and communication activity of eight participants with mild to moderate intellectual disability, sensory or sensory-motor impairments, and limited speech skills. Method: The upgraded program was based on the use of (a) a Samsung Galaxy A3 smartphone with Android 6.0 Operating System, near-field communication, music and video player functions, and Macrodroid application, and (b) special radio frequency-code labels. Participants requested leisure and communication activities by placing mini objects or pictures representing those activities and containing frequency-code labels on the smartphone. The smartphone, via the Macrodroid application, read the labels (i.e., discriminated the participants' requests) and provided the participants with the activities requested. Results: During the baseline (i.e., in the absence of the program), the participants failed to request/access leisure and communication activities independently. During the post-intervention phase of the study (i.e., using the program), they succeeded in requesting/accessing those activities independently and spent about 70-90% of their session time busy with those activities. Conclusion: The upgraded smartphone-based program may be highly functional for people like the participants of this study.

Promoting physical activity in people with intellectual and multiple disabilities through a basic technology-aided program

This study assessed a technology-aided program (monitoring responding, and ensuring preferred stimulation and encouragements) for promoting physical activity with 11 participants with severe/profound intellectual and multiple disabilities. Each participant was provided with an exercise device (e.g. a static bicycle and a stepper) and exposed to the program according to an ABAB design, in which A and B represented baseline and intervention phases, respectively. Data recording concerned (a) the participants' responses with the exercise device (e.g. pedaling) during baseline and intervention phases and (b) their heart rates during the last intervention phase. The results showed that all participants had significant increases in responding with the exercise devices during the intervention phases. Heart-rate values during the intervention sessions indicated that the participants' responding during those sessions mostly amounted to moderate-intensity physical activity, with potential benefits for their overall physical condition. Implications of the findings and questions for future research in the area were discussed.

A Technology-Aided Program to Support Basic Occupational Engagement and Mobility in Persons with Multiple Disabilities

Background

Persons with severe/profound intellectual and multiple disabilities tend to be passive and sedentary. Promoting their occupational engagement and mobility (i.e., indoor walking) can help to modify their condition and improve their environmental input, health, and social image.

Aim

This study assessed whether a technology-aided program was suitable to (a) support independent occupation and mobility in eight participants with intellectual and sensory disabilities and (b) eventually increase the participants’ heart rates to levels considered beneficial for them.

Method

The program, which involved a computer system regulating the presentation of auditory or visual cues and the delivery of preferred stimulation, was introduced according to a non-concurrent multiple baseline design across participants. The auditory or visual cues guided the participants to collect objects from different desks and to transport them to a final destination (i.e., depositing them into a carton). Preferred stimulation was available to the participants for collecting and for depositing the objects.

Results

During the program, all participants had an increase in their independent responses of collecting objects and transporting them to the final destination. Their heart rates also increased to levels reflecting moderate-intensity physical exercise, potentially beneficial for their health.

Conclusion

A program, such as that used in this study, can promote occupational engagement and mobility in persons with multiple disabilities.

Training Direct-Care Staff to Provide Communication Intervention to Adults With Intellectual Disability: A Systematic Review

PURPOSE

The aim of this review was to summarize and evaluate studies on training direct-care staff to provide communication intervention to adults with intellectual disability.

METHOD

Systematic searches identified 22 studies. These were summarized and evaluated in terms of (a) participants; (b) settings; (c) training aims and procedures; (d) research designs; (e) reliability, integrity, and social validity; (f) outcomes; (g) generalization and follow-up; and (h) certainty of evidence.

RESULTS

A total of 437 staff and 254+ adults with intellectual disability participated. Staff training most frequently involved combinations of verbal instruction, role play, modeling, practice, and feedback. Reliability was assessed in 18 studies with acceptable standards for most of these studies. Treatment integrity and social validity were assessed in 1 and 3 studies, respectively, with positive outcomes. Generalization and maintenance were assessed in 5 and 8 studies, respectively, with predominantly positive outcomes. Most studies reported positive outcomes for staff and positive or mixed outcomes for the adults with intellectual disability. Certainty of evidence was rated as conclusive in 1 study, suggestive in 14 studies, and inconclusive in 7 studies.

CONCLUSIONS

There is sufficient evidence to conclude that direct-care staff can be taught to provide effective communication intervention to adults with intellectual disability. Professionals involved in providing training and support to direct-care staff could expect positive outcomes from multicomponent training programs that include opportunities for practice and feedback.

Using Smartphones to Help People with Intellectual and Sensory Disabilities Perform Daily Activities

Background

People with mild-to-moderate intellectual disability and sensory impairments often fail to take initiative in starting and carrying out daily activities, with negative consequences for their occupational condition and social status. Their failure seems due to their inability to determine the right time for the activities and to remember all the activity steps.

Aim

This study assessed a smartphone intervention, which was designed to help eight participants (four presenting with intellectual disability and blindness and four presenting with intellectual disability and hearing impairment) to independently start and carry out daily activities at appropriate times.

Method

The intervention was introduced according to a non-concurrent multiple baseline design across participants. During the intervention, each participant was provided with a smartphone, which was fitted with the time schedule of his or her activities and the verbal or pictorial instructions for the single steps of those activities. When the time for an activity was reached, the participant was automatically reminded to start that activity and, thereafter, he or she was presented with the instructions for it.

Results

The use of the smartphone intervention promoted great improvement over the baseline for all participants. That is, the participants managed to (a) independently start the activities at the scheduled times and (b) carry out those activities with high levels of accuracy.

Conclusion

A smartphone intervention, such as that used in this study, may help people with mild-to-moderate intellectual disability and sensory impairments to successfully engage in daily activities.

Promoting Functional Activity Engagement in People with Multiple Disabilities through the Use of Microswitch-Aided Programs

Background

People with severe/profound multiple (e.g., intellectual, motor, or sensory–motor) disabilities are frequently restricted to a situation of inactivity and dependence, which may be modified by promoting functional activity engagement through assistive technology.

Methods

This study assessed the possibility of promoting functional activity engagement via microswitch-aided programs with nine participants with multiple disabilities between 10 and 29 years of age. Functional activity consisted of constructive interaction with the immediate environment (e.g., reaching/touching or putting away objects) through the use of response schemes considered practical and beneficial for the participants’ physical exercise and general condition. Microswitch-aided programs were used to monitor the participants’ responses and to automatically provide stimulation opportunities contingent on those responses.

Results

All participants had a large/significant increase in their activity engagement (i.e., response frequencies) during the microswitch-aided programs, when compared to the baseline periods. These data, which are in line with previous findings in the area, indicate that the programs targeted activity and responses suitable for the participants and ensured contingent stimulation effective to motivate them.

Conclusion

People with severe/profound multiple disabilities can engage in functional activity with the help of microswitch-aided programs.

Assessing a Microswitch-Based Stimulation Procedure for Eye-Blinking Responses in a Young Woman with Profound Multiple Disabilities

We applied a new microswitch-based stimulation procedure for eye-blinking responses with a young woman with profound multiple disabilities, and compared effects of this procedure on the eye-blinking responses and smiling with the effects of a caregiver-based stimulation condition. Analysis showed that the microswitch-based stimulation procedure, with stimulation occurring contingent on eye-blinking responses, increased the frequencies of these responses significantly above the levels recorded in baseline and caregiver-based stimulation conditions. No changes in smiling frequencies occurred. Implications of the findings in terms of alertness, learning, and quality of life are discussed.

Automatic Prompting to Reduce Persistent Tongue Protrusion in a Woman with Severe to Profound Mental Retardation

This study assessed whether an intervention approach relying on auditory prompting delivered automatically through a portable device was effective to reduce tongue protrusion in a woman with severe to profound mental retardation. The device involved (a) an optic sensor, i.e., a miniphotocell kept under the lower lip with medical tape, (b) a small signal transmission box, and (c) a Walkman for presenting the prompts. Initially, the automatic prompting condition was combined with occasional praise from a research assistant for having the tongue in the mouth. Analysis showed that the occurrence of tongue protrusion dropped from about 65% of the observation time during the initial baseline to less than 5% through the intervention. The study lasted 4.5 mo.

A Writing Program with Word Prediction for a Young Man with Multiple Disabilities: A Preliminary Assessment

This study assessed a writing program with word prediction, which completed the writing of a word and spoke it out only when there was certainty that such a word was the correct one. The assessment was carried out with a young man with multiple disabilities, who typically used a word-processing program without word prediction. The two programs were compared on the time required by the participant for writing general sentences, through a social validation assessment, and eventually a check on the participant's preference. Analysis showed the program with word prediction was significantly more effective in terms of the writing time, which was halved, and was deemed preferable by 40 raters (psychology students) involved in the social validation assessment and by the participant himself. Implications of the findings are discussed.

Enabling Persons with Multiple Disabilities to Choose among Environmental Stimuli and Request Stimulus Repetitions through Microswitch and Computer Technology

This study assessed microswitch and computer technology to enable two participants with multiple disabilities, 32 and 19 years of age, to choose among environmental stimuli and request their repetition whenever they so desired. Within each session, 18 stimuli (12 preferred and 6 nonpreferred) were available. For each stimulus, a computer system provided a sample of 3 sec. duration. During the intervention, participants' vocal responding in relation to a stimulus sample activated a microswitch and a computer system turned on that stimulus for 15–30 sec. When participants did not vocally respond, the computer system paused briefly and then presented the next scheduled stimulus sample. When participants vocally responded at the end of a stimulus presentation, the stimulus was repeated. Intervention data showed that the participants learned to choose preferred stimuli and bypass nonpreferred ones as well as to request repetitions of the preferred stimuli. This performance was maintained at a 1-mo. postintervention check and transferred to sets of stimuli not used in the intervention. The implications of these results were discussed.

Enabling a Man with Multiple Disabilities and Limited Motor Behavior to Perform a Functional Task with Help of Microswitch Technology

This study evaluated the extent to which two microswitches used as interfaces would enable a man with multiple disabilities and limited motor behavior to operate an electric door opener at the entrance of the day center that he attended. Analysis showed the man (a) learned to use the two microswitches, (b) preferred the microswitch placed at his wheelchair's footrest (which also allowed more effective responding) over the microswitch placed at his wheelchair's armrest, and (c) maintained his positive performance at the 1- and 2-mo. postintervention checks. The results were discussed from a technical and practical standpoint and in terms of implications for the quality of life of persons with disabilities.

Further Evaluation of Microswitch Clusters to Enhance Hand Response and Head Control in Persons with Multiple Disabilities

This study was a further evaluation of microswitch clusters (combinations of two microswitches) to improve adaptive responding together with correct head position in two persons with multiple disabilities. The two participants were 19.7 and 6.6 yr. old and had profound intellectual disabilities, spastic tetraparesis, and visual impairment. They were initially taught an adaptive hand response that activated a pressure microswitch and produced favorite stimulation. Thereafter, their performance of the hand response produced favorite stimulation only when it was combined with a correct head position (detected through a mercury microswitch). Analysis showed that both participants increased the frequency of the hand response and, subsequently, the percentage of times they emitted this response in combination with correct (upright) head position. In essence, they were able to coordinate constructive occupation with exercise of appropriate posture. Performance was maintained at a 2-mo. postintervention check.

Teaching ‘Yes’ and ‘No’ Responses to Children with Multiple Disabilities through a Program Including Microswitches Linked to a Vocal Output Device

The present study introduced two children (a boy and a girl of 9.2 and 12.3 yr. of age, respectively, with multiple disabilities) to an intervention program for establishing Yes and No responses in relation to preferred and nonpreferred stimuli and assessed the acquisition and generalization of those responses. The program involved the use of microswitches, which monitored the nonverbal Yes and No responses performed by the children and ensured that these responses produced the matching verbal utterances via a vocal output device. Analysis showed children acquired Yes and No responses in relation to the stimuli used for the intervention and, to a comparable degree, to the stimuli used for generalization checks as well. An interview of 30 educational staff of a center for persons with multiple disabilities indicated that they considered the presence of Yes and No verbal utterances preferable to the absence of such utterances, and thought that the utterances could be helpful for the children's response acquisition and would be useful and pleasing for staff and parents. General implications of the findings were discussed.

Small Hand-Closure Movements Used as a Response through Microswitch Technology by Persons with Multiple Disabilities and Minimal Motor Behavior

This study assessed small hand-closure movements as a potential response for microswitch activation with two participants with profound multiple disabilities of 5.2 and 20.6 yr. of age. The microswitch consisted of a two-membrane thin pad fixed to the palm of the hand and a control system. The outer membrane (the one facing the fingers) was a touch-sensitive layer; the inner membrane was activated if the participant applied a pressure of over 20 gm. The activation of either membrane triggered an electronic control system, which in turn activated one or more preferred stimuli for 6 sec. except in baseline phases. Each participant received an ABAB sequence, in which A represented baseline and B intervention phases, and a 1-mo. postintervention check. Analysis showed both participants increased their responding during the intervention phases and maintained that responding at the postintervention check. Implications of the findings are discussed.

Research note: attitudes of teachers and undergraduate students regarding three augmentative and alternative communication modalities

The social validity of different communication modalities is a potentially important variable to consider when designing augmentative and alternative communication (AAC) interventions. To assess the social validity of three AAC modes (i.e., manual signing, picture exchange, and an iPad^®-based speech-generating device), we asked 59 undergraduate students (pre-service teachers) and 43 teachers to watch a video explaining each mode. They were then asked to nominate the mode they perceived to be easiest to learn as well as the most intelligible, effective, and preferred. Participants were also asked to list the main reasons for their nominations and report on their experience with each modality. Most participants (68-86%) nominated the iPad-based speech-generating device (SGD) as easiest to learn, as well as the most intelligible, effective, and preferred. This device was perceived to be easy to understand and use and to have familiar and socially acceptable technology. Results suggest that iPad-based SGDs were perceived as more socially valid among this sample of teachers and undergraduate students. Information of this type may have some relevance to designing AAC supports for people who use AAC and their current and future potential communication partners.

Teaching Systematic Instruction Competencies to Special Education Student Teachers: An Applied Behavioral Supervision Model

This study compared the effectiveness of immediate and delayed feedback supervision procedures on the acquisition of systematic instruction skills by three pre-service teachers who were receiving practicum experience in classrooms for students with severe disabilities. Behaviors targeted for intervention were: (a) the appropriate use of positive consequences, and (b) the appropriate use of systems of instructional prompts. All supervision procedures were administered by university supervisors. Results indicated that immediate feedback was more effective with two student teachers and delayed feedback was more effective for the third participant. Unobtrusive observations of two participants in the practicum sites following the intervention indicated that the teaching skills maintained in the absence of the university supervisors.

Helping people in a minimally conscious state develop responding and stimulation control through a microswitch-aided program

BACKGROUND

Postcoma persons in a minimally conscious state (MCS) and with extensive motor impairment cannot independently access and control environmental stimulation.

AIM

Assessing the effects of a microswitch-aided program aimed at helping MCS persons develop responding and stimulation control and conducting a social validation/evaluation of the program.

DESIGN

A single-subject ABAB design was used for each participant to determine the impact of the program on his or her responding. Staff interviews were used for the social validation/evaluation of the program.

SETTING

Rehabilitation and care facilities that the participants attended.

POPULATION

Eleven MCS persons with extensive motor impairment and lack of speech or any other functional communication.

METHODS

For each participant, baseline (A) phases were alternated with intervention (B) phases during which the program was used. The program relied on microswitches to monitor participants' specific responses (e.g., prolonged eyelid closures) and on a computer system to enable those responses to control stimulation. In practice, the participants could use a simple response such as prolonged eyelid closure to generate a new stimulation input. Sixty-six staff people took part in the social validation of the program. They were to compare the program to basic and elaborate forms of externally controlled stimulation, scoring each of them on a six-item questionnaire.

RESULTS

All participants showed increased response frequencies (and thus higher levels of independent stimulation input/control) during the B phases of the study. Their frequencies for each intervention phase more than doubled their frequencies for the preceding baseline phase with the difference between the two being clearly significant (P<0.01). Staff involved in the social validation procedure provided significantly higher scoring (P<0.01) for the program on five of the six questionnaire items.

CONCLUSIONS

A microswitch-aided program can be an effective and socially acceptable tool in the work with MCS persons.

CLINICAL REHABILITATION IMPACT

The participants and staff's data can be taken as an encouragement for the use of a microswitch-aided program within care and rehabilitation settings for MCS persons.

Adapting a Grid into a Microswitch to Suit Simple Hand Movements of a Child with Profound Multiple Disabilities

We adapted a grid into a microswitch for the hand movements of a girl with profound multiple disabilities who lay on her back. The grid, suspended above the girl's face, was equipped with two mercury devices, i.e., small sealed ampoules containing a mercury drop and ending with conductive leads. A lateral or forward movement of the grid would make the mercury drop of at least one device slide to the conductive leads and activate the device. During the intervention, activations of the devices, i.e., microswitch activations, produced the occurrence of favorite stimuli. Analysis showed that the girl increased the frequency of hand movements and microswitch activations during the intervention phases compared to the baseline phases (when the favorite stimuli were not available). The increase was retained at a 1-mo. postintervention check.

Effects of Automatically Delivered Stimulation on Persons with Multiple Disabilities during Their Use of a Stationary Bicycle

We assessed the effects of automatically delivered favorite stimulation on engagement and indices of happiness of two adults with multiple disabilities during their use of a stationary bicycle. The participants typically received four 5-min. sessions per day over a period of about 3.5 mo. Analysis showed that one participant had a significant increase in both those measures while the other participant had a significant increase in engagement during the intervention phases of the study (when the stimulation was present) as opposed to the baseline periods (when the stimulation did not occur). Implications of the findings are discussed.