Atypicalities in sleep and semantic consolidation in autism.

Sleep is known to support the neocortical consolidation of declarative memory, including the acquisition of new language. Autism spectrum disorder (ASD) is often characterized by both sleep and language learning difficulties, but few studies have explored a potential connection between the two. Here, 54 children with and without ASD (matched on age, nonverbal ability and vocabulary) were taught nine rare animal names (e.g., pipa). Memory was assessed via definitions, naming and speeded semantic decision tasks immediately after learning (pre-sleep), the next day (post-sleep, with a night of polysomnography between pre- and post-sleep tests) and roughly 1 month later (follow-up). Both groups showed comparable performance at pre-test and similar levels of overnight change on all tasks; but at follow-up children with ASD showed significantly greater forgetting of the unique features of the new animals (e.g., pipa is a flat frog). Children with ASD had significantly lower central non-rapid eye movement (NREM) sigma power. Associations between spindle properties and overnight changes in speeded semantic decisions differed by group. For the TD group, spindle duration predicted overnight changes in responses to novel animals but not familiar animals, reinforcing a role for sleep in the stabilization of new semantic knowledge. For the ASD group, sigma power and spindle duration were associated with improvements in responses to novel and particularly familiar animals, perhaps reflecting more general sleep-associated improvements in task performance. Plausibly, microstructural sleep atypicalities in children with ASD and differences in how information is prioritized for consolidation may lead to cumulative consolidation difficulties, compromising the quality of newly formed semantic representations in long-term memory.

Sleep Promotes Phonological Learning in Children Across Language and Autism Spectra.

Purpose Establishing stable and flexible phonological representations is a key component of language development and one which is thought to vary across children with neurodevelopmental disorders affecting language acquisition. Sleep is understood to support the learning and generalization of new phonological mappings in adults, but this remains to be examined in children. This study therefore explored the time course of phonological learning in childhood and how it varies by structural language and autism symptomatology. Method Seventy-seven 7- to 13-year-old children, 30 with high autism symptomatology, were included in the study; structural language ability varied across the sample. Children learned new phonological mappings based on synthesized speech tokens in the morning; performance was then charted via repetition (without feedback) over 24 hr and followed up 4 weeks later. On the night following learning, children's sleep was monitored with polysomnography. Results A period of sleep but not wake was associated with improvement on the phonological learning task in childhood. Sleep was associated with improved performance for both trained items and novel items. Structural language ability predicted overall task performance, though language ability did not predict degree of change from one session to the next. By contrast, autism symptomatology did not explain task performance. With respect to sleep architecture, rapid eye movement features were associated with greater phonological generalization. Conclusions Children's sleep was associated with improvement in performance on both trained and novel items. Phonological generalization was associated with brain activity during rapid eye movement sleep. This study furthers our understanding of individual differences in the acquisition of new phonological mappings and the role of sleep in this process over childhood. Supplemental Material https://doi.org/10.23641/asha.11126732.

The Association Between Anxiety Symptoms and Sleep in School-Aged Children: A Combined Insight From the Children's Sleep Habits Questionnaire and Actigraphy.

The current study assessed the association between anxiety symptoms and sleep in 90 school-aged children, aged 6-12 years (Mage = 108 months, 52.2% male). The Children's Sleep Habits Questionnaire (CSHQ) and 14 nights of actigraphy were used to assess sleep. Anxiety was assessed using the Spence Children's Anxiety Scale (SCAS). A significant association was found between parent-reported anxiety symptoms and current sleep problems (i.e., CSHQ total scores ≥ 41). An examination of SCAS subscales identified a specific association between generalized anxiety disorder (GAD) symptoms and increased parental sleep concerns, including sleep onset delay, sleep duration, and daytime sleepiness. Regarding actigraphy, whilst anxiety was not associated with average sleep variables, a relationship was identified between anxiety and the night-to-night variability of actigraphy-derived sleep schedules.

The developmental trajectory of parent-report and objective sleep profiles in autism spectrum disorder: Associations with anxiety and bedtime routines.

The present study compared the course of parent-report and actigraphy-derived sleep profiles over a 1-year period, in school-age children with autism spectrum disorder and typically developing children. The Children's Sleep Habits Questionnaire and 14 nights of actigraphy were used to assess sleep profiles. Parents also completed the Spence Children's Anxiety Scale, the Social Worries Questionnaire and the Bedtime Routines Questionnaire. Between-group differences in parent-reported sleep problems were less pronounced at follow-up compared to baseline. The course of objective sleep was comparable between groups, with a significant reduction in sleep duration over time in both groups. Children with autism spectrum disorder were further characterised by significantly more night-to-night variability in sleep quality, across both time points. Reductions over time in parent-reported sleep problems were significantly associated with reduced anxiety. Reductions in actigraphy-derived sleep efficiency were associated with an increased frequency of maladaptive activities in the hour before bedtime, in both children with and without autism spectrum disorder.

Partnership, knowledge translation, and substance abuse prevention with a First Nations community.

BACKGROUND: Having identified substance abuse as an issue of concern in their community, the Alexis Nakota Sioux Nation invited University of Alberta researchers to partner on the cultural adaptation, delivery, and evaluation of a school-based drug and alcohol abuse prevention program. Researchers conducted a literature review of available drug and alcohol prevention programs for children and youth, identifying the Life Skills Training (LST) program as a viable model for cultural adaptation. OBJECTIVES: Four program objectives were developed: (1) Review and cultural adaptation of the elementary and junior high LST programs, (2) delivery of the adapted programs, (3) measurement of changes in students' knowledge of the negative effects of drug and alcohol use, attitudes toward drugs and alcohol, drug and alcohol refusal and life skills, and changes in self-esteem/self-concept, and (4) documentation of the community's experience of the project. METHODS: Using the principles of community-based participatory research (CBPR), we employed both qualitative and quantitative methods to evaluate the impact of the project. RESULTS: Qualitative evaluation of the program adaptation and implementation were both positive. Qualitative measures of program impact on students revealed a positive effect, whereas results of the quantitative measures were mixed. CONCLUSIONS: Culturally adapted, evidence-based programs can have a positive effect on Aboriginal youth and their communities. Strategies to expand knowledge translation (KT) when working with Aboriginal communities include working to create an "ethical space" that draws on the strengths of both Western and Indigenous worldviews.

"Making a place of respect": lessons learned in carrying out consent protocol with First Nations elders.

BACKGROUND: This article explores the issue of informed consent by First Nations Elders modifying and implementing a substance abuse prevention program for youth, Nimi Icinohabi, among the Alexis Nakota Sioux Nation. The Elders who approved and guided the research maintained that informed consent procedures carried out by the Western academic institutions were redundant given adherence to their own culturally based protocol. OBJECTIVES: The objective of this article is to present lessons learned regarding the cultural basis of consent involving First Nations Elders to improve our own and other researchers' ethical practice in this context. METHODS: Two focus groups were held with our team of community and university-based researchers (n = 6) to discuss our experience of the Elder consent procedures used during the project. RESULTS: Elder involvement was integral to the success of the program. Using methods of consent originating from Western thought and given historical and ongoing issues of trust with Western institutions, signing consent forms was unacceptable to them and perceived as undermining their own ethical practices. An oral consent process utilizing cultural protocol and a tool to keep track of participation in this process was subsequently approved by our Research Ethics Board (REB) and used successfully. CONCLUSIONS: When researchers use standard informed consent practices, they risk losing the trust of community partners by undermining cultural values and practices. As academic researchers, it is our ethical responsibility, in the spirit of restorative justice, to honor the principles of beneficence and justice in research by ensuring consent within the context of cultural protocol.

A culturally adapted drug and alcohol abuse prevention program for aboriginal children and youth.

BACKGROUND: In response to substance abuse within their community, the Alexis Nakota Sioux Nation invited the University of Alberta (UofA) to partner in a collaborative effort to establish a school-based substance abuse prevention program. OBJECTIVES: An evidence-based substance abuse prevention program was reviewed and adapted by the community to ensure that it incorporated their cultural beliefs, values, language, and visual images. The adapted program was delivered to students at Alexis Nakota Sioux Nation School and changes in student participants' knowledge, attitudes, refusal skills, and self-beliefs were measured. Benefits and challenges of adapting the program were documented. METHODS: The principles of community-based participatory research (CBPR) and the Canadian Institute for Health Research, Guidelines for Research Involving Aboriginal People, provided a frame of reference for the work throughout the research process. A pre-/posttest questionnaire was used to measure changes in student participants' drug and alcohol refusal skills, self-beliefs, and knowledge of the negative effects of drug and alcohol use. Focus groups (FGs) documented community members' experiences of and responses to the program adaptations and delivery. RESULTS: Results included (1) positive changes in students' drug and alcohol refusal skills, self-beliefs, and knowledge of the negative effects of drug and alcohol use, (2) ownership of and investment in the program by the community, (3) teaching approaches that correspond with the learning contexts, worldview, and relationships of the community, and (4) participation of community Elders. CONCLUSION: Quantitative and qualitative measures provide evidence for the importance, benefits, and challenges of employing a culturally adapted evidence-based substance abuse prevention program with Aboriginal students attending a First Nations school.