An Applied Model of Interprofessional Collaboration-Assessment (AMIC-A): A Process-Based Approach to Augmentative and Alternative Communication.

Speech-language pathologists and board-certified behavior analysts both provide important support services to children who are candidates for augmentative and alternative communication. Current assessment practices neglect critical socioecological factors that are necessary to inform communication-based interventions. By leveraging the unique knowledge, research, and expertise of both disciplines, an interprofessional approach to assessment may help realize individualized or precision interventions and personalized supports that address the unique communication needs of each person. The purpose of this article is to introduce a process-based approach to assessment called the "Applied Model of Interprofessional Collaboration-Assessment (AMIC-A)." The AMIC-A will be defined and detailed including the rationale for development, a description of the approach, and recommendations for implementation. A case study example is provided to illustrate implementation of the AMIC-A.

A Cascade xDAWN EEGNet Structure for Unified Visual-Evoked Related Potential Detection.

Visual-based brain-computer interface (BCI) enables people to communicate with others by spelling words from the brain and helps professionals recognize targets in large numbers of images. P300 signals evoked by different types of stimuli, such as words or images, may vary significantly in terms of both amplitude and latency. A unified approach is required to detect variable P300 signals, which facilitates BCI applications, as well as deepens the understanding of the P300 generation mechanism. In this study, our proposed approach involves a cascade network structure that combines xDAWN and classical EEGNet techniques. This network is designed to classify target and non-target stimuli in both P300 speller and rapid serial visual presentation (RSVP) paradigms. The proposed approach is capable of recognizing more symbols with fewer repetitions (up to 5 rounds) compared to other models while possessing a better information transfer rate (ITR) as demonstrated on Dataset II (17.22 bits/min in the second repetition round) of BCI Competition III. Additionally, our approach has the highest unweighted average recall (UAR) performance for both 5 Hz ( 0.8134±0.0259 ) and 20 Hz ( 0.6527±0.0321 ) RSVP. The results show that the cascade network structure has better performance between both the P300 Speller and RSVP paradigms, manifesting that such a cascade structure is robust enough for dealing with P300-related signals (source code is available at https://github.com/embneural/Cascade-xDAWN-EEGNet-for-ERP-Detection).

Identifying Components of a Person-Centered Augmentative and Alternative Communication Intervention for People With Dementia: Opinions of an International Expert Panel.

PURPOSE: Despite general agreement on the importance of person-centered care in speech-language pathology, guidelines for developing person-centered interventions for those with dementia are limited. This study aimed to obtain expert opinion on the components of a person-centered augmentative and alternative communication (AAC) intervention for persons with dementia. METHOD: A modified electronic Delphi technique was employed in a single round. A purposively sampled panel of experts was invited to provide their opinion on three open-ended questions related to (a) the elements of person-centered care, (b) communication supports, and (c) the interaction outcomes of a person-centered intervention. Thirty-one experts from nine countries participated on the panel. The majority were speech-language pathologists primarily involved in research. Qualitative written data were coded and analyzed using content analysis. RESULTS: Nine components were identified across the three open-ended questions: (a) the unique characteristics of the person with dementia, (b) working with a person with dementia, (c) preserving personhood, (d) a different view on person-centered care, (e) a range of communication supports, (f) supportive conversational partners, (g) designing communication supports, (h) interaction outcome measure, and (i) meaningful interaction outcomes. CONCLUSION: This study identified nine components that are useful in guiding speech-language pathologists in crafting future person-centered AAC interventions for people with dementia.

Funcionalidade de pessoas hospitalizados em vulnerabilidade comunicativa pela CIF / Functioning of hospitalized people in vulnerable communication by the ICF / Funcionalidad de las personas hospitalizadas con vulnerabilidad comunicativa por el CIF

Introdução: Pacientes hospitalizados, por causas diversas, podem apresentar comprometimentos de fala e linguagem que os coloquem em situação de vulnerabilidade comunicativa, influenciando sua funcionalidade. Adota-se a Classificação Internacional de Funcionalidade, Incapacidade e Saúde (CIF) para análise, sob esta perspectiva. Objetivo: Analisar a linguagem e funcionalidade de pessoas em vulnerabilidade comunicativa, em cuidados intensivo e semi-intensivo no hospital, pela CIF, como base conceitual. Método: Estudodescritivo e transversal, constituído por 18 participantes. Para a coleta de dados realizou-se: (i) levantamento dos prontuários, para caracterização do perfil sociodemográfico e das condições clínicas dos participantes; (ii) aplicação do protocolo ICUCS (Intensive Care Unit Communication Screening Protocol);(iii) introdução da Comunicação Suplementar e/ou Alternativa (CSA) e (iv) diário de campo (registro dos relatos). Os resultados foram analisados pela CIF e realizada análise estatística descritiva. Resultados: A maioria dos participantes estava alerta e compreendia comandos simples, sendo que 39% apresentaram problema grave de expressão de linguagem. Quanto à atividade e participação, 50% apresentaram dificuldade grave no falar, 33%, em iniciar e em manter conversas. Quanto aos fatores ambientais, familiares e profissionais de Saúde foram apontados tanto como facilitadores quanto como barreiras para a comunicação. A CSA foi vista como facilitadora da comunicação. Conclusão: Os participantes apresentaram alteração de expressão da linguagem oral, com compreensão preservada e dificuldades de atividade e participação, com impacto nos fatores ambientais, sendo a CSA uma facilitadora da comunicação. Reafirma-se a aplicabilidade da CIF no contexto hospitalar, para pessoas em vulnerabilidade comunicativa, para cuidado ampliado e humanizado.

Introduction: Hospitalized patients, due to various causes, may present impairment of speech and language which may lead them to a situation of communicative vulnerability, influencing its functioning. The ICF - International Classification of functioning, Disability and Health is adopted to perform this analysis, under this perspective. Purpose: To analyze the language and functioning of people in communicative vulnerability, under intensive or semi-intensive care at the hospital, according to ICF, as a concept basis. Methods: Descriptive and cross-sectional study, composed by 18 participants. Data collected through: (i) hospital chart survey analysis, in order to characterize sociodemographic profile and clinical conditions of the participants; (ii) application of ICUCS - Intensive Care Unit Communication Screening Protocol; (iii) introduction of AAC - Augmentative and Alternative Communication and (iv) field journal (entries of reports). The results were analyzed by ICF and then performed descriptive statistic analyses. Results: Most participants were alert and could comprehend simple commands, from which 39% presented severe problems regarding language expression. Regarding activity and participation, 50% presented severe difficulty of speaking and 33% of starting and keeping conversations. Regarding environmental, family and health professionals factors, they have all been appointed both as facilitators and barriers to communication. AAC was seen as a communication facilitator. Conclusion: Participants presented alteration of oral language expression, preserved comprehension and difficulties in activity and participation with impact in environmental factors, being AAC a communication facilitator. Reassurance of applicability of ICF in hospital context, directed to people in communicative vulnerability, regarding ample and humanized treatment.

Los pacientes hospitalizados, por las causas diversas, pueden presentar deterioro de la funcionalidad del habla y del lenguaje que se sitúa en el discurso comunicativo, lo que influye en su funcionalidad. Se utiliza la Clasificación Internacional del Funcionamiento de la Discapacidad y de la Salud (CIF) para análisis desde esta perspectiva. Objetivo: Analizar el lenguaje y la funcionalidad de personas en vulnerabilidad comunicativa, en cuidados intensivos y semiintensivos hospitalarios, utilizando la CIF, como fundamento conceptual. Método: Estudiodescriptivo y transversal, con 18 participantes. La recogida de datos incluyó: (i) estudios de las historias clínicas, para caracterizar el perfil sociodemográfico y las condiciones clínicas de los participantes; (ii) la aplicación del protocolo ICUCS (Intensive Care Unit Communication Screening Protocol);(iii) la introducción de la Comunicación Aumentativa y Alternativa (CAA) y (iv) un diario de campo (registro de informes). Los resultados se analizaron por la CIF y se realizó un análisis estadístico descriptivo. Resultados: La mayoría de los participantes estaban alerta y entendían órdenes sencillas, el 39% presentaron graves problemas para expresarse en el lenguaje. Em cuanto, a la actividad y la participación, el 50% tenía graves dificultades para hablar, y el 33%, para iniciar y mantener conversaciones. Los factores ambientales, los miembros de la familia y los profesionales sanitarios fueron identificados tanto como facilitadores como obstáculo para la comunicación. Se consideró que el CAA facilitaba la comunicación. Conclusión: Los participantes presentaban alteración en la expresión del lenguaje oral, con entendimiento resguardado y dificultades en la actividad y la participación, con impacto en los factores ambientales, siendo la CAA facilitadora de la comunicación. Se reafirma la aplicabilidad de la CIF en el contexto hospitalario, para personas en vulnerabilidad comunicativa, para la atención ampliada y humanizada.

Effects of an Augmentative and Alternative Communication Intervention Package on Socio-Communicative Behaviors Between Minimally Speaking Autistic Children and Their Peers.

PURPOSE: The purpose of this study is to investigate the effectiveness of an augmentative and alternative communication (AAC) intervention package consisting of systematic instruction and aided modeling with speech-output technologies on the acquisition, maintenance, and generalization of socio-communicative behaviors-initiating a request for a turn, answering questions, and commenting-in four, minimally speaking (MS) autistic children between the ages of 6 and 9 years. METHOD: A multiple-probe design across behaviors replicated across participants was implemented to evaluate the effects of systematic instruction and aided modeling on initiating requests for a turn, answering questions, and commenting behaviors. Additionally, a pre- and posttreatment multiple-generalization-probes design was used to assess generalization across peers. RESULTS: Visual analyses demonstrated experimental control for two participants (i.e., Derek, Ajay) showing a functional relationship between the intervention and outcomes across all social communicative behavior. For one participant (i.e., Matthew), experimental control could not be established because he did not reach the learning criterion for commenting. The fourth participant (i.e., John) transferred to a different school after making some progress on requesting. Effect size indicator analyses corroborated these findings, indicating medium-to-strong effects for initiating requests for a turn strong effects for answering questions, and medium-to-strong effects for commenting. Generalization of socio-communicative behaviors from researcher to a typically developing peer was variable across participants. Participants maintained socio-communicative behaviors 3 weeks after the last intervention session with varying degrees of success. CONCLUSION: The outcomes of this study suggest that aided modeling and systematic instruction using speech-output technologies may lead to gains in socio-communicative behaviors in some MS autistic children. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.25799935.

Alternative Augmentative Communication in paediatric dentistry: a mighty tool to amplify mother tongue's power.

AIM: The role of a child's mother tongue in shaping his/her identity and emotional development is crucial. In the context of paediatric dentistry, this principle should always be reminded. The child's right to effective communication, even when a language barrier exists, is a fundamental principle, as recently stated in the 'Rights from the Start' rights fact sheet. Preserving a child's native language in the dental setting, especially in the context of an increasingly diverse society with a significant number of refugee children, is essential. Augmentative and Alternative Communication (AAC) strategies can assist in bridging language gaps and improving treatment outcomes, blending with the traditional approaches used in paediatric dentistry. The article promotes flexibility, innovation, and empathy in paediatric dentistry to provide optimal care and ensure that every child's rights are respected. CONCLUSION: • The relationship with one's mother language plays a central role in children's growth and in the relationship they can develop with the world, "motherised" by the words of the caregiver. • The interaction between immigrant children from different linguistic and cultural backgrounds and dentists providing their care requires the integration of traditional paediatric dental techniques with AAC strategies that can compensate for deficient oral communication. • Dentists treating immigrant children should follow the suggestions proposed in this article to establish the best and most tailored paediatric setting for the child's specific needs.

A Randomized Controlled Trial Comparing Face-to-Face Versus Remote Delivery of Low-Tech Augmentative and Alternative Communication in Nonspeaking Children With Autism Spectrum Disorder.

PURPOSE: Thirty percent of children diagnosed with autism spectrum disorder (ASD) do not develop spoken language. To provide a means of communication for this subset of the population, augmentative and alternative communication (AAC) systems are often utilized. Low-tech options have traditionally been delivered through the in-person modality. However, due to the COVID-19 pandemic, changes to service delivery models have been required. This randomized controlled trial was conducted in order to assess the efficacy of low-tech AAC delivered face-to-face versus remotely on communication outcomes in nonspeaking children with ASD. CONCLUSIONS: Both participant groups demonstrated similar gains in AAC proficiency, number and type of nonspeaking acts, and number of spoken communication acts. Remote delivery of low-tech AAC treatment is a viable alternative to face-to-face instruction.

Still having his say: David Yoder's legacy in AAC.

On February 2 2023, one of the guiding lights in the field of augmentative and alternative communication (AAC) for more than four decades, David E. Yoder, passed away at the age of 90. A voracious reader and gifted storyteller, David was particularly fond of a quote from George Bernard Shaw's Back to Methuselah, "You see things; and you say 'Why?' but I dream things that never were; and I say 'Why not?'" That vision led him to take on multiple leadership roles and influence the field of AAC in multiple ways. He played a pivotal role in establishing both the International Society for Augmentative and Alternative Communication (ISAAC) and the United States Society for Augmentative and Alternative Communication (USSAAC). Additionally, he chaired the panel for the National Institute on Disability and Rehabilitation Research (NIDRR)'s inaugural Consensus Validation Conference on AAC, advocated for the American Speech-Language-Hearing Association to recognize AAC within the profession's scope of practice, and served as the first editor for the Augmentative and Alternative Communication journal. In this tribute, we describe David's diverse and unique contributions to improving the lives of people with communication challenges with a focus on some of his central insights and actions.

Project Building Bridges: A Framework for Preparing Highly Qualified Speech-Language Pathologists to Serve Culturally and Linguistically Diverse Students With Augmentative and Alternative Communication Needs.

PURPOSE: Project Building Bridges was funded by the U.S. Department of Education Office of Special Education Programs to address the shortage of speech-language pathologists qualified to serve students with complex communication needs who benefit from augmentative and alternative communication (AAC) and are culturally and linguistically diverse. The purpose was to train future speech-language pathologists in culturally responsive AAC practices through coursework and fieldwork in AAC integrated into the Master of Science degree in Speech, Language and Hearing Sciences. METHOD: Fifty-seven graduate students completed the project. The scholars' curriculum consisted of two AAC courses, both on-campus and externship AAC clinical practicum experiences to provide services to multicultural and linguistically diverse students, a U.S. or international service-learning opportunity, and cumulative portfolio presentations. RESULTS: Mixed-methods outcome measures consisted of four sets of pre- and postsurveys and qualitative feedback from exit interviews to assess changes in graduate student competencies. Significant differences were demonstrated between scholars' pre- and post-assessments of confidence ratings. Significant differences were also demonstrated in both scholars' and school mentors' pre- and post-assessments of competency ratings. No significant differences were found between evaluations of AAC preparation by Clinical Fellowship (CF) candidates and their CF mentors at 1 year postgraduation. CONCLUSIONS: Project Building Bridges provides a framework for preparing highly qualified speech-language pathologists to serve culturally and linguistically diverse students who benefit from AAC as evidenced by pre- and postsurvey results. The project can serve as a model for other university programs in the development of preservice preparation programs focusing on culturally and linguistically diverse students with AAC needs.

How Toddlers Use Core and Fringe Vocabulary: What's in an Utterance?

PURPOSE: Selecting vocabulary for preliterate individuals who use augmentative and alternative communication presents multiple challenges, as the number of symbols provided must be balanced with cognitive, motoric, and other needs. Prioritizing certain types of vocabulary thus becomes a necessity. For example, prioritizing core vocabulary-that is, words that are commonly used across a group of people and contexts-is a common practice that attempts to address some of these issues. However, most core vocabulary research to date has narrowly focused on individual word counts, ignoring other critical aspects of language development such as how vocabulary aligns with typical development and how children use core and fringe vocabulary within their utterances. METHOD: Descriptive and inferential statistics were used to analyze 112 transcripts to describe how typically developing toddlers (aged 2.5 years) use core and fringe vocabulary within their utterances, in reference to a range of commonly used core vocabulary lists. RESULTS: Results indicated that the proportion of the toddlers' utterances that consisted of only core, only fringe, or core + fringe vocabulary varied dramatically depending on the size of the core vocabulary list used, with smaller core lists yielding few "core-only" utterances. Furthermore, utterances containing both core and fringe vocabulary were both grammatically and semantically superior to utterances containing only core or only fringe vocabulary, as evidenced by measures such as mean length of utterance and total number of words. CONCLUSION: Thus, relying on word frequency counts is an insufficient basis for selecting vocabulary for aided preliterate communicators.

Increasing Reciprocal Social Interactions Between Children Who Use Augmentative and Alternative Communication and Peers Using a Collaborative Learning Framework.

PURPOSE: Children with complex communication needs who rely on augmentative and alternative communication (AAC) strategies to express themselves face significant difficulties interaction with peers. This study sought to design, implement, and evaluate a collaborative photography intervention designed to increase reciprocal social interaction between children who use AAC and their same-age peers. METHOD: A single-subject, withdrawal design (ABAB) was used to explore the functional relationship between engagement in a collaborative photography intervention and the frequency of reciprocal social interactions between children who use AAC and their same-age peers. Partial-interval time sampling was used to code the number of reciprocal social interactions across four dyads. RESULTS: Increased frequencies of reciprocal social interactions were observed in intervention phases across all four dyads. Very large levels of effect and 100% nonoverlapping data were noted for Dyads 1 and 4. Moderate levels of effect and 70% of nonoverlapping data were noted for Dyads 2 and 3. CONCLUSIONS: Collaborative learning frameworks may be used to increase reciprocal social interactions between children who use AAC and their peers. Speech-language pathologists should consider utilizing collaborative learning elements in activities with children who use AAC. Future research is needed to further explore collaborative learning frameworks for interventions for children who use AAC. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.25464064.

A systematic review of acquisition and mastery of skills taught using the Picture Exchange Communication System.

The Picture Exchange Communication System (PECS) is a popular augmentative and alternative communication intervention for individuals with developmental disabilities that includes six, sequential phases of instruction. We systematically reviewed published and unpublished single-case PECS studies for details about the percentage of participants mastering PECS phases, how long it took participants to master PECS phases (in trials to mastery), and what constituted mastery of PECS phases. We found most participants mastered only the first two phases of PECS, and Phases I, II, and IV showed the slowest and widest variability in trials to mastery. Moreover, participants who were taught the third PECS phase learned to select from an average array of three symbols, which may limit the range of messages they can communicate. We discuss our findings in light of a few important limitations and provide directions for future researchers along with recommendations for professionals who might consider PECS.

Parents' Perceptions of Eye-Gaze Technology Use by Children With Complex Communication Needs.

PURPOSE: Some preschool students with complex communication needs explore eye-gaze computer technology (EGCT) and adopt computer-based augmentative and alternative communication (AAC). The objective of this study was to follow preschool explorers of EGCT who are now school aged to describe the children's use of technology and parents' perceptions of its utility for communication, participation, or leisure. METHOD: Ten parents completed survey questions by Internet and phone and reported their perceptions of nine children's effectiveness in the use and acceptance of AAC and the support they received in implementing technology. The results are reported as a descriptive study. RESULTS: All children in this research continue to use AAC technology in school and most at home. Many children who tried and obtained EGCT while in preschool continue to use that technology. Most parents agreed that the children understood how to use the devices, which enhanced the children's communication, and that the parents received sufficient support. Most children were limited in their use of the devices for leisure and control of their environments. CONCLUSIONS: Computer-based AAC for school-aged children who trialed it when they were in preschool appears to be a powerful means for them to communicate and participate. However, the technology appears not to be used to its full capabilities to support the children's agency to control environments and to pursue leisure. Teams may want to consider how to support children in using their AAC devices to meet multiple needs. The study was limited by its small sample size and its descriptive nature. Additional research on this subject is needed.

Modality Synchronization When People With Aphasia Read With Text-to-Speech Support.

PURPOSE: Text-to-speech (TTS) technology potentially benefits people with aphasia by presenting content through two modalities simultaneously; however, for this to help, eye fixations must synchronize with the auditory rendition of words. Researchers have yet to explore how often and to what extent people with aphasia achieve modality synchronization. This retrospective analysis examined the percent of words people with aphasia see and hear concurrently when reading passages presented via TTS technology. Text-to-speech (TTS) technology potentially benefits people with aphasia by presenting content through two modalities simultaneously; however, for this to help, eye fixations must synchronize with the auditory rendition of words. Researchers have yet to explore how often and to what extent people with aphasia achieve modality synchronization. This retrospective analysis examined the percent of words people with aphasia see and hear concurrently when reading passages presented via TTS technology. METHOD: Nine adults with aphasia had their eye movements tracked while processing TTS passages at a preselected default rate of 150 words per minute. Modality synchronization occurred whenever fixation on a written word occurred during the time span beginning 300 ms before auditory presentation and ending at the next word's initiation. Correlations between standardized test scores, unsupported reading rate, and modality synchronization percentages were informative about the association of aphasia and reading impairment severity with achievement of synchronicity. RESULTS: Three participants demonstrated consistent modality synchronization; average synchronicity ranged from 67% to 76% of passage words. One participant displayed inconsistent synchronization within passages and achieved an average of 58%. The remaining five participants rarely achieved synchronization, with fixations typically lagging substantially behind the auditory presentation. A significant positive correlation occurred between paragraph reading comprehension test scores and modality synchronization percentages. CONCLUSIONS: A default TTS presentation rate does not result in dual modality synchronization for most people with aphasia. This lack of synchronization may contribute to inconsistencies in the benefit people with aphasia experience when provided with TTS support.

A Comprehensive Scoping Review of Caregivers' Experiences With Augmentative and Alternative Communication and Their Collaboration With School Professionals.

PURPOSE: Parent engagement and involvement is essential for the successful implementation of augmentative and alternative communication (AAC) systems in the home. The purpose of the current study is to gain a deeper understanding of caregivers' experiences with AAC systems and their collaboration with school professionals during the implementation of AAC, which may have led to subsequent abandonment. METHOD: This review intentionally included qualitative studies that employed semistructured interviews, focus groups, and ethnographic investigations that documented the experiences and perceptions of families implementing AAC at home. Electronic database search, ancestral search, and forward search procedures resulted in a total of 27 peer-reviewed studies portraying the voices of 319 caregivers. RESULTS: An inductive analysis was conducted to record recurring themes into codes. The codes were thematically synthesized into three main themes: (a) the family unit, (b) the service providers, and (c) the AAC system. CONCLUSIONS: The results emphasized the need for participatory practices of family involvement in co-constructing a collaborative AAC service provision. Future research directions should implement this practice and explore the outcomes of this process to validate its efficacy.

Leveraging Communication Partner Speech to Automate Augmented Input for Children on the Autism Spectrum Who Are Minimally Verbal: Prototype Development and Preliminary Efficacy Investigation.

PURPOSE: Augmentative and alternative communication (AAC) technology innovation is urgently needed to improve outcomes for children on the autism spectrum who are minimally verbal. One potential technology innovation is applying artificial intelligence (AI) to automate strategies such as augmented input to increase language learning opportunities while mitigating communication partner time and learning barriers. Innovation in AAC research and design methodology is also needed to empirically explore this and other applications of AI to AAC. The purpose of this report was to describe (a) the development of an AAC prototype using a design methodology new to AAC research and (b) a preliminary investigation of the efficacy of this potential new AAC capability. METHOD: The prototype was developed using a Wizard-of-Oz prototyping approach that allows for initial exploration of a new technology capability without the time and effort required for full-scale development. The preliminary investigation with three children on the autism spectrum who were minimally verbal used an adapted alternating treatment design to compare the effects of a Wizard-of-Oz prototype that provided automated augmented input (i.e., pairing color photos with speech) to a standard topic display (i.e., a grid display with line drawings) on visual attention, linguistic participation, and (for one participant) word learning during a circle activity. RESULTS: Preliminary investigation results were variable, but overall participants increased visual attention and linguistic participation when using the prototype. CONCLUSIONS: Wizard-of-Oz prototyping could be a valuable approach to spur much needed innovation in AAC. Further research into efficacy, reliability, validity, and attitudes is required to more comprehensively evaluate the use of AI to automate augmented input in AAC.

Is there a 'universal' core? Using semantic primes to select vocabulary across languages in AAC.

Core vocabulary lists and vocabulary inventories vary according to language. Lists from one language cannot and should not be assumed to be translatable, as words represent language-specific concepts and grammar. In this manuscript, we (a) present the results of a vocabulary overlap analysis between different published core vocabulary lists in English, Korean, Spanish, and Sepedi; (b) discuss the concept of universal semantic primes as a set of universal concepts that are posited to be language-independent; and (c) provide a list of common words shared across all four languages as exemplars of their semantic primes. The resulting common core words and their corresponding semantic primes can assist families and professionals in thinking about the initial steps in the development of AAC systems for their bilingual/multilingual clients.

A retrospective chart review of the patient population accessing augmentative & alternative communication at an urban assistive technology center.

The purpose of this study was to 1) identify and describe the population seeking alternative and augmentative communication (AAC) evaluations at an assistive technology (AT) center in the Midwestern United States and 2) describe the AAC device features or services participants identify as most important at their initial AAC evaluations. Charts of 53 participants seeking AAC interventions at an AT center in the Midwestern United States were retrospectively reviewed. Information from the QUEST 2.0 was used to determine what AT features were identified as most important. The majority of participants seen at the AT center had progressive diseases. Across all of the participants, ease of use and effectiveness were identified as the "most important" aspects of an AAC device satisfaction. These findings highlight the importance of determining who is accessing AAC services across AT centers to determine whether barriers to AAC services exist. Moreover, patients report regarding what variables they deem as most important reflect the fact that excellent service-delivery may not overcome the importance of other variables, such as ease of use that impact AAC use.

Examining core vocabulary with language development for early symbolic communicators.

PURPOSE: Core vocabulary lists are frequently used to select vocabulary for early symbolic communicators who require augmentative and alternative communication (AAC). The current study extended existing work by investigating how core vocabulary lists overlap and diverge from typical language development. METHOD: We investigated when the words on seven core vocabulary lists emerge in typical language development, the composition of the lists based on their parts of speech, and how the composition of the words on the lists compare to the MacArthur Bates Communication Development Inventories (CDI). RESULT: On average, the words on the seven core vocabulary lists appear after the second year of life in children with typical spoken language development (25, 27, 37, 45, 47, 50, and 66 months). Verbs were the most prevalent part of speech in all but one of the core vocabulary lists. Core vocabulary words made up only a small percentage of words on the CDI. CONCLUSION: The words on the core vocabulary lists do not emerge until later points in typical lexical development. Focussing on core words when working with early symbolic communicators who require AAC may lead to limited and variable lexicons with wide gaps.

Applying a Developmental Model to Preliterate Aided Language Learning.

PURPOSE: Childhood spoken language interventions and augmentative and alternative communication (AAC) interventions share a common purpose: maximizing communication and language outcomes. To ensure that interventions for children who require AAC also address expressive language acquisition, this clinical focus article focuses on how to apply a developmental model of language acquisition to guide AAC decision making for preliterate aided communicators, with a particular focus on vocabulary selection. METHOD: A brief review of early expressive language development is presented, along with arguments for why relying on a developmental model to guide AAC decision making is so critical. A series of detailed examples of how to apply a developmental model to various AAC vocabulary selection approaches are provided, including analyses of how well each approach aligns with pragmatic, semantic, grammatical, and narrative development. CONCLUSIONS: No single AAC approach for preliterate AAC language learners adequately addresses both immediate and longer-term expressive language needs; every approach has both strengths and weaknesses. Clinical decision making requires an analysis of each approach to ensure that AAC service delivery teams clearly understand the inevitable linguistic gaps, with plans put into place to fill in those gaps with different approaches. Future efforts to improve preliterate AAC service provision should use a developmental model of language as a starting point, in combination with input from families, educators, and clinicians to ensure the feasibility of the chosen approaches.