Friday, December 1, 2017

Sleep patterns predictive of daytime challenging behavior in individuals with low-functioning autism

Sleep patterns predictive of daytime challenging behavior in individuals with low-functioning autism


Abstract
Increased severity of problematic daytime behavior has been associated with poorer
sleep quality in individuals with autism spectrum disorder. In this work, we
investigate whether this relationship holds in a real-time setting, such that an
individual’s prior sleep can be used to predict their subsequent daytime behavior. We
analyzed an extensive real-world dataset containing over 20,000 nightly sleep
observations matched to subsequent challenging daytime behaviors (aggression, selfinjury, tantrums, property destruction and a challenging behavior index) across 67
individuals with low-functioning autism living in two U.S. residential facilities. Using
support vector machine classifiers, a statistically significant predictive relationship
was found in 81% of individuals studied (
P < 0.05). For all five behaviors examined,
prediction accuracy increased up to approximately eight nights of prior sleep used to
make the prediction, indicating that the behavioral effects of sleep may manifest on
extended timescales. Accurate prediction was most strongly driven by sleep
variability measures, highlighting the importance of regular sleep patterns. Our
findings constitute an initial step towards the development of a real-time monitoring
tool to pre-empt behavioral episodes and guide prophylactic treatment for individuals
with autism.


Lay Summary:
We analyzed over 20,000 nights of sleep from 67 individuals with autism to
investigate whether daytime behaviors can be predicted from prior sleep patterns.
Better-than-chance accuracy was obtained for 81% of individuals, with measures of
night-to-night variation in sleep timing and duration most relevant for accurate
prediction. Our results highlight the importance of regular sleep patterns for better
  daytime functioning, and represent a step towards the development of ‘smart sleep technologies’ to pre-empt behavior in individuals with autism.

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Monday, November 20, 2017

Assessing Quality of Program Environments for Children and Youth with Autism: Autism Program Environment Rating Scale (APERS)

Assessing Quality of Program Environments for Children and Youth

with Autism: Autism Program Environment Rating Scale (APERS)

Abstract
The purpose of this study was to examine the psychometric properties of the Autism Program Environment Rating Scale (APERS), an instrument designed to assess quality of program environments for students with autism spectrum disorder. Data sets from two samples of public school programs that provided services to children and youth with autism spectrum disorder were utilized. Cronbach alpha analyses indicated high coefficients of internal consistency for the total APERS and moderate levels for item domains for the first data set, which was replicated with the second data set. A factor analysis of the first data set indicated that all domain scores loaded on one main factor, in alignment with the conceptual model, with this finding being replicated in the second data set. Also, the APERS was sensitive to changes resulting from a professional development program designed to promote program quality.

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Sunday, November 12, 2017

Improvements in problem behavior in a child with autism spectrum diagnosis through synthesized analysis and treatment: A replication in an EIBI home program

Improvements in problem behavior in a child with autism spectrum diagnosis through synthesized analysis and treatment: A replication in an EIBI home program

A recent study described a synthesized treatment where a functional analysis was based on an openended interview and combined with functional communication and delaytolerance training. The treatment resulted in a reduction in problem behaviors and an increase in appropriate requests. Most of the analysis and intervention were done in a clinic setting, and required weekly visits by the family. This present study is a systematic replication, where we conducted the same synthesized treatments, with a young child with Autism Spectrum Disorder (ASD) enrolled in a homebased Early Intensive
Behavior Intervention program, EIBI. Outcomes were similar with a marked reduction in problem behaviors and an increase in appropriate requests. These findings suggest that it is possible to conduct this intervention in a home setting, with weekly consultations with parents. Our study show the utility of the synthesized treatment in an EIBI program in a home setting and how this can contribute to
client time and costs.

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Tuesday, October 17, 2017

Experiences of Autism Acceptance and Mental Health in Autistic Adults

Experiences of Autism Acceptance and Mental Health in Autistic Adults

Abstract 

Mental health difficulties are highly prevalent in individuals on the autism spectrum. The current study examined how experiences and perceptions of autism acceptance could impact on the mental health of autistic adults. 111 adults on the autism spectrum completed an online survey examining their experiences of autism acceptance, along with symptoms of depression, anxiety and stress. Regression analyses showed that autism acceptance from external sources and personal acceptance significantly predicted depression. Acceptance from others also significantly predicted stress but acceptance did not predict anxiety. Further
analyses suggested that experiences of “camouflaging” could relate to higher rates of depression. The current study highlights the importance of considering how autism acceptance could contribute to mental health in autism.


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Tuesday, September 26, 2017

Barriers to Receipt of Services for Young Adults With Autism

 Barriers to Receipt of Services for Young Adults With Autism



Abstract:

OBJECTIVES: In this study, we examine experiences of families of young adults (YAs) on the
autism spectrum to better understand dynamics leading to poor YA outcomes.
METHODS: Twenty parents of YAs with autism spectrum disorder (ASD) who had completed
high school in the past 15 years took part in a 90-minute interview. They described their
YA
s experiences at the transition from high school and current status with regards to
services or postsecondary education. Qualitative interviews were digitally recorded,
transcribed, and analyzed by using the constant comparative method associated with a
grounded theory approach.
RESULTS: Few adults with ASD were receiving autism-specific assistance no matter their level
of cognitive functioning. Existing systems, such as service agencies and college disability
support offices, had seldom been designed to meet their needs. Some families gave up on
services, some used self-directed services they had to manage themselves, and others paid
out of pocket for services they could access no other way. Inadequate services often led
to YA failure and worsening of symptoms. The majority of families bore the financial and
emotional brunt of finding or creating services and community experiences to meet their
adult child
s needs.
CONCLUSIONS: Parent narratives highlight the difficulties that are faced as families attempt
to access appropriate services for YAs on the autism spectrum at all levels of functioning.
These insights can help pediatricians understand family concerns and develop anticipatory
guidance strategies. More research is needed to identify potential solutions to challenges
faced by specific subgroups of YAs with ASD.

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The Heritability of Autism Spectrum Disorder

The Heritability of Autism Spectrum Disorder


Studies have found that autism spectrum disorder (ASD) aggregates in families, and twin studies estimate the proportion of the phenotype variance due to genetic factors (heritability) to be about 90%.1
In a previous study,2 ASD heritability was estimated to be 0.50, and shared familial environmental influences to be 0.04. To define presence or absence of ASD, the study used a data set created to take into account time-to-event effects in the data, which may have reduced the heritability estimates
(detailed explanation in
Figure). Using the same underlying data as in the previous study,2
we used an alternate method (used by previous studies in the field) to define concordant and discordant sibling pairs to calculate the heritability of ASD


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Monday, September 11, 2017

An Evaluation of Explicit Ethical Statements in Telehealth Research With Individuals With Autism Spectrum Disorder

 An Evaluation of Explicit Ethical Statements in Telehealth Research
With Individuals With Autism Spectrum Disorder

Principles and procedures derived from the science of behavior analysis have been
utilized to improve the quality of life for individuals across many domains (e.g., health
and education) and within many settings (e.g., business and home). Recently, greater
attention has been paid to behavior analytic treatments for individuals with autism
spectrum disorder, where it is considered to be the most effective treatment (e.g.,
Reichow, 2012). Similar to other health professions, the supply of competent practitioners is less than the demand in many geographical locations. A potential solution to
this dilemma is the delivery of behavior analytic services via telehealth. A previous
review of telehealth services for individuals with autism spectrum disorder indicated
that research for this type of service delivery model is limited (
Boisvert, Lang,
Andrianopoulos, & Boscardin, 2010
). An additional limitation of the research to date
is an absence of behavior-analytic specific ethical considerations when practitioners
utilize a telehealth service delivery model. The purpose of this paper is to review
whether special risk reduction strategies related to the use of telehealth with autism
spectrum disorder have been documented or reported in the literature. Results suggest
that explicit step-by-step documentation of practices is sparse.


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Wednesday, August 30, 2017

Identification of autism spectrum disorder using deep learning and the ABIDE dataset

 Identification of autism spectrum disorder using deep learning and the ABIDE dataset


A B S T R A C T

The goal of the present study was to apply deep learning algorithms to identify autism spectrum disorder (ASD) patients from large brain imaging dataset, based solely on the patients brain activation patterns. We investigated ASD patients brain imaging data from a world-wide multi-site database known as ABIDE (Autism Brain Imaging Data Exchange). ASD is a brain-based disorder characterized by social deficits and repetitive behaviors. According to recent Centers for Disease Control data, ASD affects one in 68 children in the United States. We investigated patterns of functional connectivity that objectively identify ASD participants from functional brain imaging data, and attempted to unveil the neural patterns that emerged from the classification. The results improved the state-of-the-art by achieving 70% accuracy in identification of ASD versus control patients in the dataset. The patterns that emerged from the classification show an anticorrelation of brain function between anterior and posterior areas of the brain; the anticorrelation corroborates current empirical evidence of anterior-posterior disruption in brain connectivity in ASD. We present the results and identify the areas of the brain that contributed most to differentiating ASD from typically developing controls as per our deep learning model.

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Thursday, June 29, 2017

Evaluating the effects of Acceptance and Commitment Training on the overt behavior of parents of children with autism

Evaluating the effects of Acceptance and Commitment Training on the overt behavior of parents of children with autism


A B S T R A C T

Behavioral parent training is a critical component of treatment for children with autism, however, engaging parents effectively can be challenging. Despite evidence that private events can strongly influence parent behavior and training outcomes, the topic has received minimal attention in the behavioral literature thus far. Acceptance and Commitment Training (ACT) is a contemporary behavioral approach to increasing adaptive, flexible repertoires of behavior, by reducing control by problematic rule-deriving and rule-following. This study is the first to examine the effects of ACT on values-directed overt behavior in parents of children with ASD. A nonconcurrent multiple baseline design across participants was used to evaluate treatment effectiveness. Notable increases in overt values-directed parent behavior were observed for all participants. Gains maintained posttraining, with the greatest effects observed more than 6 months post-training. Exploratory data suggested possible decreases in parental experiential avoidance and increases in self-compassion

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Monday, April 24, 2017

An Overview of Autism Spectrum Disorder, Heterogeneity and Treatment Options

 An Overview of Autism Spectrum Disorder, Heterogeneity

and Treatment Options

Abstract 

Since the documented observations of Kanner in
1943, there has been great debate about the diagnoses, the
sub-types, and the diagnostic threshold that relates to what
is now known as autism spectrum disorder (ASD).
Reflecting this complicated history, there has been continual 
refinement from DSM-III with ‘Infantile Autism’ to
the current DSM-V diagnosis. The disorder is now widely
accepted as a complex, pervasive, heterogeneous condition
with multiple etiologies, sub-types, and developmental
trajectories. Diagnosis remains based on observation of
atypical behaviors, with criteria of persistent deficits in
social communication and restricted and repetitive patterns
of behavior. This review provides a broad overview of the
history, prevalence, etiology, clinical presentation, and
heterogeneity of ASD. Factors contributing to heterogeneity, 
including genetic variability, comorbidity, and
gender are reviewed. We then explore current evidencebased 
pharmacological and behavioral treatments for ASD
and highlight the complexities of conducting clinical trials
that evaluate therapeutic efficacy in ASD populations.
Finally, we discuss the potential of a new wave of research
examining objective biomarkers to facilitate the evaluation
of sub-typing, diagnosis, and treatment response in ASD.

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