Enhanced gaze-following behavior in Deaf infants of Deaf parents.

Gaze following plays a role in parent-infant communication and is a key mechanism by which infants acquire information about the world from social input. Gaze following in Deaf infants has been understudied. Twelve Deaf infants of Deaf parents (DoD) who had native exposure to American Sign Language (ASL) were gender-matched and age-matched (±7 days) to 60 spoken-language hearing control infants. Results showed that the DoD infants had significantly higher gaze-following scores than the hearing infants. We hypothesize that in the absence of auditory input, and with support from ASL-fluent Deaf parents, infants become attuned to visual-communicative signals from other people, which engenders increased gaze following. These findings underscore the need to revise the 'deficit model' of deafness. Deaf infants immersed in natural sign language from birth are better at understanding the signals and identifying the referential meaning of adults' gaze behavior compared to hearing infants not exposed to sign language. Broader implications for theories of social-cognitive development are discussed. A video abstract of this article can be viewed at https://youtu.be/QXCDK_CUmAI.

A Case of Specific Language Impairment in a Deaf Signer of American Sign Language.

This article describes the case of a deaf native signer of American Sign Language (ASL) with a specific language impairment (SLI). School records documented normal cognitive development but atypical language development. Data include school records; interviews with the child, his mother, and school professionals; ASL and English evaluations; and a comprehensive neuropsychological and psychoeducational evaluation, and they span an approximate period of 7.5 years (11;10-19;6) including scores from school records (11;10-16;5) and a 3.5-year period (15;10-19;6) during which we collected linguistic and neuropsychological data. Results revealed that this student has average intelligence, intact visual perceptual skills, visuospatial skills, and motor skills but demonstrates challenges with some memory and sequential processing tasks. Scores from ASL testing signaled language impairment and marked difficulty with fingerspelling. The student also had significant deficits in English vocabulary, spelling, reading comprehension, reading fluency, and writing. Accepted SLI diagnostic criteria exclude deaf individuals from an SLI diagnosis, but the authors propose modified criteria in this work. The results of this study have practical implications for professionals including school psychologists, speech language pathologists, and ASL specialists. The results also support the theoretical argument that SLI can be evident regardless of the modality in which it is communicated.

Atypical signed language development: a case study of challenges with visual-spatial processing.

In signed languages, the articulatory space in front of the signer is used grammatically, topographically, and to depict a real or imagined space around a signer and thus is an important consideration in signed language acquisition. It has been suggested that children who acquire signed languages rely on concomitant visual-spatial development to support their linguistic development. We consider the case of a native-signing deaf adolescent female with average intelligence who had been reported to struggle with spatial aspects of American Sign Language (ASL) as a child. Results of a battery of linguistic and nonlinguistic tests suggest that she has relatively good ASL skills with the exception of some specific difficulties on spatial tasks that require attention to ASL and nonlinguistic topographic space or changes in visual perspective (e.g., classifiers and referential shift). This child has some difficulties with visual-spatial abilities, and we suggest that this has affected her acquisition of those aspects of ASL that are heavily dependent on visual-spatial processing.

The socialization of modality capital in sign language ecologies: A classroom example.

Gaze behavior is an important component of children's language, cognitive, and sociocultural development. This is especially true for young deaf children acquiring a signed language-if they are not looking at the language model, they are not getting linguistic input. Deaf caregivers engage their deaf infants and toddlers using visual and tactile strategies to draw in, support, and promote their child's visual attention; we argue that these caregiver actions create a developmental niche that establishes the visual modality capital their child needs for successful sign language learning. But most deaf children do not have deaf signing parents (reportedly over 90%) and they will need to rely on adult signing teachers if they are to acquire a signed language at an early age. This study examines classroom interactions between a Deaf teacher, her teacher's aide, and six deaf preschoolers to document the teachers' "everyday practices" as they socialize the gaze behavior of these children. Utilizing a detailed behavioral and linguistic analysis of two video-recorded book-sharing contexts, we present data summarizing the teacher's attention-getting actions directed toward the children and the discourse-embedded cues that signal the teacher's expectations for student participation in the signed conversation. We observed that the teacher's behaviors differed according to the parent status of the deaf preschooler (Deaf parents vs. hearing parents) suggesting that Deaf children of Deaf parents arrive to the preschool classroom with well-developed self-regulation of their attention or gaze. The teachers also used more physical and explicit cueing with the deaf children of hearing parents-possibly to promote their ability to leverage the visual modality for sign language acquisition. We situate these socialization patterns within a framework that integrates notions of intuitive or indigenous practices, developmental niche, and modality capital. Implications for early childhood deaf education are also discussed.

Interpersonal Trauma and Posttraumatic Stress in Autistic Adults.

Background: Many autistic adults report interpersonal traumas (IPTs) such as physical or sexual assault, which are often associated with posttraumatic stress and dissociation. Factors such as gender might make autistic individuals particularly vulnerable to experiencing IPT and negative posttraumatic symptoms. Methods: In this study, 687 self-identified autistic adults completed an online survey on their traumatic experiences and mental health symptoms. Results: Seventy-two percent of participants reported experiencing sexual assault, other unwanted or uncomfortable sexual experiences, or physical assault. Forty-four percent of participants met the criteria for posttraumatic stress disorder (PTSD), including 50% of those who had experienced IPT and 28% of those who had not (odds ratio = 2.50; 95% confidence interval 1.74-3.60). IPT was also significantly associated with higher levels of psychoform (p < 0.001) and somatoform (p < 0.001) dissociation. Autistic cisgender women and gender minorities experienced a significantly higher number of traumas (p = 0.004) and were significantly more likely than cisgender men to experience sexual IPT (p < 0.001) and meet the criteria for PTSD (p < 0.001). There were no significant differences between autistic individuals with and without a professional autism spectrum disorder (ASD) diagnosis. Conclusions: IPT is associated with potentially severe mental health outcomes for autistic adults. Autistic women and gender minorities may be particularly vulnerable to sexual IPT and adverse outcomes. Increased screening for a history of IPT and posttraumatic symptoms is recommended for all autistic adults regardless of ASD diagnosis status. Lay summary: Why was this study done?: Many autistic people experience interpersonal traumas (IPTs) such as sexual or physical assault. These can lead to mental health challenges such as posttraumatic stress disorder (PTSD) or dissociation (a disconnection between individuals and aspects of their perceptions or sense of self). We wanted to better understand what might make autistic adults more likely to experience trauma and how it affects them.What was the purpose of this study?: The purpose was to understand what might make autistic people more at risk of experiencing IPT and PTSD. We also wanted to know if IPT is associated with a higher risk of PTSD or dissociation.What did the researchers do?: Six hundred eighty-seven autistic adults filled out an online survey about their traumatic experiences, PTSD symptoms, and dissociation symptoms. We analyzed their responses to see how often participants reported experiencing different types of trauma and whether they met the criteria for PTSD and clinical dissociation. We then compared trauma experiences and PTSD rates across genders and those with and without a professional autism spectrum disorder (ASD) diagnosis and compared PTSD rates and dissociation rates across participants who had versus had not experienced IPT.What were the results of the study?: Seventy-two percent of autistic adults in this study reported having experienced sexual assault, another unwanted sexual experience, or physical assault. Almost half (44%) met the criteria for PTSD. Most participants (93%) also reported high levels of mind-based dissociation, and 32% reported high levels of body-based dissociation (dissociation that causes negative emotions to be experienced as physical problems such as headaches or trouble moving). Participants who had experienced IPT were almost twice as likely to meet the criteria for PTSD and scored higher on both measures of dissociation. Cisgender women and gender minorities were more likely to experience IPT and meet the criteria for PTSD than cisgender men. Participants with and without a professional ASD diagnosis did not differ.What do these findings add to what was already known?: Most previous research on trauma and PTSD for autistic people was done on children and did not look at IPT specifically or compare people based on their gender or ASD diagnosis. As far as we know, this is the first study on posttraumatic dissociation in autistic adults.What are potential weaknesses in the study?: The findings of this study may not apply to autistic adults as a whole. People who could have participated may not have been interested in the topic, may not have seen study advertisements and so been unaware of the study, or may not have had the time or energy to participate. Findings might have been different if different groups of autistic people participated more.How will these findings help autistic adults now or in the future?: If professionals who help autistic people do not talk to them about trauma, traumatized autistic adults may not get the right support. This study could encourage professionals to screen more autistic people, especially women and gender minorities, for trauma.

Individual differences in lexical learning across two language modalities: Sign learning, word learning, and their relationship in hearing non-signing adults.

A considerable amount of research has been devoted to understanding individual differences in lexical learning, however, the majority of this research has been conducted with spoken languages rather than signed languages and thus we know very little about the cognitive processes involved in sign learning or the extent to which lexical learning processes are specific to word learning. The present study was conducted to address this gap. Two-hundred thirty-six non-signing adults completed 25 tasks assessing word learning and sign learning (via associative learning paradigms) as well as modality-specific phonological short-term memory, working memory capacity, crystallized intelligence, and fluid intelligence. Latent variable analyses indicated that, when other variables were held constant, fluid intelligence was predictive of both word and sign learning, however, modality-specific phonological short-term memory factors were only predictive of lexical learning within modality-none of the other variables made significant independent contributions. It was further observed that sign and word learning were strongly correlated. Exploratory analyses revealed that all lexical learning tasks loaded onto a general factor, however, sign learning tasks loaded onto an additional specific factor. As such, this study provides insight into the cognitive components that are common to associative L2 lexical learning regardless of language modality and those that are unique to either signed or spoken languages. Results are further discussed in light of established and more recent theories of intelligence, short-term memory, and working memory.

Everyday technology use among older deaf adults.

PURPOSE: Technology holds great potential to support Deaf individuals as they age into older adulthood. However, it is unclear to what extent Deaf seniors are using technology in everyday life or whether they experience challenges in using technology. The current study explored technology use among older Deaf adults with regard to attitudes, adoption style, and frequency of use for a wide range of technologies, including assistive technologies (ATs) for persons with hearing loss and general, everyday technologies. MATERIALS AND METHODS: We developed a questionnaire that assessed older Deaf adults' use of and experiences with technology. The questionnaire was made available in online and paper versions. Participants (N = 109) were recruited from national conferences and organizations for the Deaf. RESULTS: Overall, we found that the older Deaf adults were technology adopters and regularly use and feel comfortable with a variety of devices. However, we also identified a number of technologies that are not being used by this population, including an AT that appears to have become obsolete and technologies that use sound-based alerts. CONCLUSIONS: Insights on how older Deaf adults are embracing technology and which devices they are actually using can help policy makers, technology developers, and a range of aging services professionals, better meet the needs of this understudied population. Implications for Rehabilitation: Older Deaf adults use a variety of assistive and everyday technologies and must be considered as consumers and included in the design process. Older Deaf adults are generally positive in their attitudes towards technologies but they are infrequent users of potentially beneficial health technologies, highlighting opportunities for future research and development. Assistive technology for the Deaf (TTY/TTD) appears to have become obsolete with advances in modern communication technologies, which has implications for policy decisions.

Toward ethical research practice with deaf participants.

In recent years, scholars have been critical of what they consider unethical conduct by researchers whose studies focus on members of the Deaf or signing communities. This is the first empirical study that investigates ethical concerns and recommendations from the perspective of three stakeholder groups (Deaf research participants, researchers, and Deaf studies experts). We analyzed focus group discussions using strategies from grounded theory and community-based participatory research. The themes we identified highlight the need for the broader scientific research community to include linguistically and culturally sensitive research procedures that more adequately protect the rights of Deaf research participants, as well as other marginalized groups. We address the need to increase the number of Deaf scientists and reconsider collaboration practices between Deaf and hearing researchers.

Do developmental communication disorders exist in the signed modality? Perspectives from professionals.

PURPOSE: This study focused on whether developmental communication disorders exist in American Sign Language (ASL) and how they might be characterized. ASL studies is an emerging field; educators and clinicians have minimal access to descriptions of communication disorders of the signed modality. Additionally, there are limited resources for assessing ASL acquisition. This article is designed to raise clinicians' awareness about developmental communication disorders in ASL and categorize types of atypicality that have been witnessed. METHOD: We conducted 4 focus groups and one 1-on-1 interview with a total of 22 adults (7 Deaf, 15 hearing) who work at bilingual-bicultural (ASL-English) schools for the Deaf. Experiences of these educators and language professionals were analyzed qualitatively using a combination of grounded theory (Charmaz, 2001; Strauss & Corbin, 1998) and a modified van Kaam approach (Moustakas, 1994). RESULTS: Participants confirmed observations of children with suspected communication disorders and considered the prevalence, possible etiologies, and psychosocial aspects of such disorders in ASL. They reported frustration at the lack of diagnostic tools for reliable identification and intervention strategies to be used in educational settings. CONCLUSION: This work provides us with practitioner accounts proving that developmental communication disorders do exist in ASL. Future reports will describe primary data from signers with atypical language attributes.

When learners surpass their models: the acquisition of American Sign Language from inconsistent input.

The present study examines the impact of highly inconsistent input on language acquisition. The American deaf community provides a unique opportunity to observe children exposed to nonnative language models as their only linguistic input. This research is a detailed case study of one child acquiring his native language in such circumstances. It asks whether this child is capable of organizing a natural language out of input data that are not representative of certain natural language principles. Simon is a deaf child whose deaf parents both learned American Sign Language (ASL) after age 15. Simon's only ASL input is provided by his late-learner parents. The study examines Simon's performance at age 7 on an ASL morphology task, compared with eight children who have native signing parents, and also compared with Simon's own parents. The results show that Simon's production of ASL substantially surpasses that of his parents. Simon's parents, like other late learners of ASL, perform below adult native signing criteria, with many inconsistencies and errors in their use of ASL morphology. In contrast, Simon's performance is much more regular, and in fact on most ASL morphemes is equal to that of children exposed to a native signing model. The results thus indicate that Simon is capable of acquiring a regular and orderly morphological rule system for which his input provides only highly inconsistent and noisy data. In addition, the results provide some insight into the mechanisms by which such learning may occur. Although the ASL situation is rare, it reveals clues that may contribute to our understanding of the human capacity for language learning.

Vocabulary Use by Low, Moderate, and High ASL-Proficient Writers Compared to Hearing ESL and Monolingual Speakers.

The written English vocabulary of 72 deaf elementary school students of various proficiency levels in American Sign Language (ASL) was compared with the performance of 60 hearing English-as-a-second-language (ESL) speakers and 61 hearing monolingual speakers of English, all of similar age. Students were asked to retell "The Tortoise and the Hare" story (previously viewed on video) in a writing activity. Writing samples were later scored for total number of words, use of words known to be highly frequent in children's writing, redundancy in writing, and use of English function words. All deaf writers showed significantly lower use of function words as compared to their hearing peers. Low-ASL-proficient students demonstrated a highly formulaic writing style, drawing mostly on high-frequency words and repetitive use of a limited range of function words. The moderate- and high-ASL-proficient deaf students' writing was not formulaic and incorporated novel, low-frequency vocabulary to communicate their thoughts. The moderate- and high-ASL students' performance revealed a departure from findings one might expect based on previous studies with deaf writers and their vocabulary use. The writing of the deaf writers also differed from the writing of hearing ESL speakers. Implications for deaf education and literacy instruction are discussed, with special attention to the fact that ASL-proficient, deaf second-language learners of English may be approaching English vocabulary acquisition in ways that are different from hearing ESL learners.