
Phenomenology of Anxiety in Preschool Children With ASD
AnxietyAutism Spectrum DisorderThis study investigates the prevalence, phenomenology, and correlates of anxiety in preschool children with autism spectrum disorder (ASD) across a two-year period. Attention bias to threat, a potential objective marker of anxiety, also is examined using eye tracking methods.

Characterization of a Clinical Subpopulation With Autism Spectrum Disorder
Autism Spectrum DisorderThe main objective for this research study is to gather additional information to help confirm identification of new subgroups within the autism spectrum.

A Repeatability and Reproducibility Study of the EarliPoint™ Device
Autism Spectrum Disorder (ASD)The study is a prospective randomized repeatability and reproducibility (R&R) study of the EarliPoint DeviceTM in pediatric subjects 16-30 months of age. The study will enroll subjects who are both clinically-positive and clinically-negative for ASD. The study will be conducted at a single center in the US. The Study consists of a screening period in order to review the subject's medical history to determine subject eligibility, followed by a device administration period during which subjects will undergo testing with the EarliPoint Devices and Expert Clinician Diagnosis (ECD) procedures to determine if they are clinically-positive or clinically-negative for ASD.

Screening for Autism Spectrum Disorders Using Auditory Brainstem Responses
Autism Spectrum DisorderThe purpose of this study is to develop an Auditory Brainstem Response (ABR) based neurological screening method to detect increased risk for Autism Spectrum Disorders (ASD) and other neurological conditions in newborns.

Autistic Features in Relation to Motor Function and Quality of Life in Children With an Autism Spectrum...
Autism Spectrum DisorderAlthough motor limitations are not currently considered a as clinical manifestation of autism spectrum disorder, they should not be ignored due to their high incidence and considerable influence on life quality functional activity

Reliability Study Using Electrodermal Activity to Measure Sensory Processing in Children With and...
Autism Spectrum DisorderThe purpose of this study is tTho establish test-retest reliability of electrodermal markers used to quantify physiologic response to sensation using the Sensory Challenge Protocol in children with and without Autism Spectrum Disorder (ASD).

Investigating Phenotypic Profiles of Children and Adolescents With ASD
Autism Spectrum DisordersThe purpose of this study is to provide a detailed description of language and cognitive profiles found among children and adolescents diagnosed with autism spectrum disorders (ASD). Participants with ASD ages 4-17;12 years who have limited verbal skills will be given comprehensive behavioral assessments to collect data that will advance our understanding of language-related processes in individuals with ASD, the knowledge of which will help in designing future interventions for this population.

SynapDx Autism Gene Expression Analysis Study
AutismThis study will prospectively enroll approximately 660 children, at least 18 months and less than 5 years of age, who have been referred to a pediatric developmental evaluation centers. Enrolled children will have blood drawn for RNA gene expression analysis and undergo a clinical evaluation to determine the presence or absence of a diagnosis of ASD. The sequential co-primary objectives of this study are: To develop an algorithm to classify blood RNA gene expression patterns to maximize agreement between the classification and a clinical assessment of presence or absence of Autism Spectrum Disorders (ASD). To prospectively assess the clinical sensitivity and specificity of the blood RNA gene expression classification algorithm (the SDX-002 test) in children referred to a developmental evaluation clinic for a possible developmental disorder.

Understanding Gastrointestinal Conditions in Children With Autism Spectrum Disorder (ASD)
Gastrointestinal DisordersAutism Spectrum DisordersThe purpose of this research study is to help us learn if children with Autism Spectrum Disorder (ASD) have gastrointestinal (stomach and intestine) problems more frequently than children without ASD do. The investigators hope to learn if children with ASD and gastrointestinal (GI) disorders have certain Problem Behaviors (PB), such as self-injury and aggression, more than children with ASD but no GI disorders do. The investigators want to learn if the Gastrointestinal Symptoms Questionnaire (GIQ) can help us tell which children with ASD also have gastrointestinal disorders. Hypothesis 1: Children with ASD exhibit high rates of symptomatic GI dysfunction that are not identified by current diagnostic evaluation. Hypothesis 2: Painful or discomfort-causing gastrointestinal dysfunctions contribute to an elevated incidence or severity of PB in an identifiable subpopulation of PB-expressing children. The investigators anticipate that the proposed study will raise the standard of medical care for children with ASD by improving current methods of identifying GI dysfunction and determining whether there is a significant relationship between GI dysfunction and PB in this population.

Evaluating the Validity of a Genetic Risk Assessment Tool in Identifying Autism Spectrum Disorder...
Autism Spectrum DisorderAttention Deficit/Hyperactivity Disorder1 moreThere are three purposes to this study. The first purpose is to evaluate the value of a genetic test in determining risk for autism spectrum disorder. Processing for genetic samples will be completed at the Cleveland Clinic using research equipment provided by IntegraGen. The second purpose is to identify genetic changes that may be associated with autism spectrum disorder or attention deficit/hyperactivity disorder. The third purpose is to examine whether genetic differences and changes may predict which individuals benefit from medicine used to treat attention problems or other psychiatric difficulties. Between 600-800 people are expected to participate in this study - approximately 300 individuals with an autism spectrum disorder, 75 individuals with attention deficit/hyperactivity disorder or another developmental or psychiatric disorder, 100 healthy siblings, and 125 unrelated individuals without a developmental or psychiatric disorder. Study procedures will vary based upon the specific group participants are suspected to fall into (autism, attention deficit/hyperactivity disorder, psychiatric concerns/developmental delay, healthy sibling, or unrelated healthy control). All individuals will be asked to participate in a cheek swab (gently swabbing the inside of your cheek) to obtain cells used for genetic testing. Genetic material will be stored with identifiers such as numbers, letters or codes. Parents or caregivers will be asked to complete questionnaires that examine medical and family history as well as current symptoms and quality of life for the participant. Participants may undergo speech and language testing. This involves answering questions, looking at pictures or identifying items. Information recorded in participant medical records will be reviewed and collected for this study.