Eye-tracking reveals agency in assisted autistic communication

Literacy in nonspeaking autistic people

LAY ABSTRACT

Many autistic people who do not talk cannot tell other people what they know or what they are thinking. As a result, they might not be able to go to the schools they want, share feelings with friends, or get jobs they like. It might be possible to teach them to type on a computer or tablet instead of talking. But first, they would have to know how to spell. Some people do not believe that nonspeaking autistic people can learn to spell. We did a study to see if they can. We tested 31 autistic teenagers and adults who do not talk much or at all. They played a game on an iPad where they had to tap flashing letters. After they played the game, we looked at how fast they tapped the letters. They did three things that people who know how to spell would do. First, they tapped flashing letters faster when the letters spelled out sentences than when the letters made no sense. Second, they tapped letters that usually go together faster than letters that do not usually go together. This shows that they knew some spelling rules. Third, they paused before tapping the first letter of a new word. This shows that they knew where one word ended and the next word began. These results suggest that many autistic people who do not talk can learn how to spell. If they are given appropriate opportunities, they might be able to learn to communicate by typing.

Adding to the Conversation: Language Delays and Parent-Child Interactions in the Younger Siblings of Children With Autism

In their first three years, children begin to maintain topics and add new information in conversation. In turn, caregivers create opportunities for language learning. Compared to children with no family history of autism (typical likelihood, TL), the younger siblings of children with autism spectrum disorder (ASD) are at elevated likelihood (EL) for both ASD and language delays. This study asked: (1) Do profiles of spoken language and conversational skills differ across groups? (2) Does spoken language relate to conversational skills? and (3) How does parent speech relate to child spoken language and conversational skills? Child spoken language, conversational skills, and parent speech were examined during toy play at home with three-year-old TL (n = 16) and EL children with ASD (EL-ASD, n = 10), non-ASD language delay (EL-LD, n = 21), and no delays or diagnoses (EL-ND, n = 37). EL-ASD children produced fewer intelligible utterances, and EL-LD and EL-ASD children produced shorter utterances than TL and EL-ND children. When utterances were intelligible, all groups were highly contingent to the topic. EL-ASD children were less likely than all other groups to add new information, and adding new information was positively associated with utterance length. Parents of EL-ASD children had fewer opportunities to respond contingently. However, all parents were highly topic-contingent when child speech was intelligible, and parent speech complexity varied with child language and conversational skills. Findings highlight strengths in conversational skills for EL-ASD children during toy play with parents and show that children and caregivers together shape opportunities for developing language and conversation.

Parent Perspectives on Assisted Communication and Autism Spectrum Disorder

IMPORTANCE

Parents of nonspeaking children with autism spectrum disorder (ASD) may present with complex challenges associated with communicating with their children.

OBJECTIVE

To explore the firsthand experiences of parents of children with ASD who use assisted communication (AC) to communicate, which has yet to be explored in the literature.

DESIGN

Semistructured interviews with ten parents of individuals with ASD, age 15 to 36 yr, who use AC to communicate.

RESULTS

Analysis of the data revealed four superordinate themes, each with two subthemes: (1) Relationship (subthemes: Involving the Child, Improved Relationship), (2) Future (subthemes: Hopes and Dreams, Planning), (3) Support (subthemes: Limited Availability of Service Providers, Underestimation), and (4) Understanding (subthemes: Communication, Understanding of the Child). The themes illustrated that using AC modalities improved the parent-child relationship (Relationship) and helped parents understand their child on a deeper level (Understanding). A positive outcome of having a new means of communication with their child was that parents could better plan for a future that reflects their child's innermost hopes and dreams (Future). Parents also reported that the lack of a consensus concerning using AC with nonspeaking children led to decreased support (Support) from professionals and educators, limiting the child's opportunities.

CONCLUSIONS AND RELEVANCE

This study provides phenomenological qualitative evidence that use of AC provides benefits to the parent-child relationship. Plain-Language Summary: This study investigated the lived experience of parents of children with autism spectrum disorder (ASD) and how the use of assisted communication (AC) affected their relationship with their child. Ten parents were interviewed. Four main topics emerged from the analysis of these interviews: (1) improved closeness in relationship, (2) improved ability to plan for the future, (3) wish for improved availability of service providers, and (4) improved understanding of who the child is as a person. Parents play a key role as team members in support of the child's performance in occupations. The results of this study suggest that AC plays an important role in supporting the parent-child relationship; therefore, AC programs should be considered when implementing and planning occupational therapy treatments for individuals who have communication impairments.

Touch may reduce cognitive load during assisted typing by individuals with developmental disabilities

Many techniques have attempted to provide physical support to ease the execution of a typing task by individuals with developmental disabilities (DD). These techniques have been controversial due to concerns that the support provider's touch can influence the typed content. The most common interpretation of assisted typing as an ideomotor phenomenon has been qualified recently by studies showing that users with DD make identifiable contributions to the process. This paper suggests a neurophysiological pathway by which touch could lower the cognitive load of seated typing by people with DD. The required sensorimotor processes (stabilizing posture and planning and executing manual reaching movements) and cognitive operations (generating and transcribing linguistic material) place concurrent demands on cognitive resources, particularly executive function (EF). A range of developmental disabilities are characterized by deficits in sensorimotor and EF capacity. As light touch has been shown to facilitate postural coordination, it is proposed that a facilitator's touch could assist the seated typist with sensorimotor and EF deficits by reducing their sensorimotor workload and thereby freeing up shared cognitive resources for the linguistic elements of the task. This is the first theoretical framework for understanding how a facilitator's touch may assist individuals with DD to contribute linguistic content during touch-assisted typing.

Spintronic Eyeblink Gesture Sensor With Wearable Interface System

This work presents an eyeblink system that detects magnets placed on the eyelid via integrated magnetic sensors and an analogue circuit on an eyewear frame (without a glass lens). The eyelid magnets were detected using tunnelling magnetoresistance (TMR) bridge sensors with a sensitivity of 14 mV/V/Oe and were positioned centre-right and centre-left of the eyewear frame. Each eye side has a single TMR sensor wired to a single circuit, where the signal was filtered (<0.5 Hz and >30 Hz) and amplified to detect the weak magnetic field produced by the 3-millimetre (mm) diameter and 0.5 mm thickness N42 Neodymium magnets attached to a medical tape strip, for the adult-age demographic. Each eyeblink was repeated by a trigger command (right eyeblink) followed by the appropriate command, right, left or both eyeblinks. The eyeblink gesture system has shown repeatability, resulting in blinking classification based on the analogue signal amplitude threshold. As a result, the signal can be scaled and classified as well as, integrated with a Bluetooth module in real-time. This will enable end-users to connect to various other Bluetooth enabled devices for wireless assistive technologies. The eyeblink system was tested by 14 participants via a stimuli-based game. Within an average time of 185-seconds, the system demonstrated a group mean accuracy of 72% for 40 commands. Moreover, the maximum information transfer rate (ITR) of the participants was 35.95 Bits per minute.

The Neurodiversity Approach(es): What Are They and What Do They Mean for Researchers?

This paper presents the concepts of "neurodiversity" and the "neurodiversity approaches" towards disability and discusses how confusion regarding the meaning of these concepts exacerbates debate and conflict surrounding the neurodiversity approaches. For example, some claim the neurodiversity approaches focus solely on society and deny contributions of individual characteristics to disability (a controversial stance), whereas this paper joins other literature in acknowledging the contributions of both individual and society to disability. This paper also addresses other controversies related to neurodiversity, such as uncertainty regarding the scope of the approaches - to whom do they apply? - and their implications for diagnostic categories. Finally, it provides recommendations for developmental researchers who wish to carry out neurodiversity-aligned research: scholars are urged to study both individual neurodivergent people and the contexts around them; to consider both strengths and weaknesses; to recognize their own biases; and to listen to and learn from neurodivergent people.

Perspective: Presuming Autistic Communication Competence and Reframing Facilitated Communication

Debate surrounding the validity of the method of supported typing known as facilitated communication (FC) has been continuous since its inception in the 1990s. Views are polarized on whether FC can be considered an authenticated method for use by people with complex communication needs (CCN) or significant challenges in speech, language, and communication. This perspective article presents an analysis of the research arguing for—and against—the use of FC, combined with the lived experience knowledge of autistic adults who utilize FC, to rehabilitate its current standing as discredited and unevidenced. By considering extant qualitative and quantitative studies, as well as personal accounts of the use of this particular Augmentative and Alternative Communication (AAC) method, the authors argue that the current dismissal of FC is rooted in ableist and outdated approaches. FC research should be reconsidered and reconducted using current best practice autism research approaches, including coproduction and a presumption of autistic communication competence, to assess its validity as a potential AAC method for autistic individuals.