Understanding the biological underpinnings of variation in social ?wanting?, or lack thereof, in individuals with ASD could open important areas for intervention. Despite solid evidence-based approaches for improving social functioning in ASD, the majority of high-functioning adults with ASD remain isolated, with outcome studies consistently noting little or no motivation to achieve relationships. Yet contrary to Kanner's original hypothesis that autism is a ubiquitous ?deficit in affective contact?, contemporary studies find extraordinary variation in social behavior in ASD, with preservation of typical attachment behaviors, social cognition, and social knowledge in many. Social neuroscience has revealed the importance of central nervous system dopamine interactions with other systems such as neuropeptide signaling in normal social function, but dopamine's role has not been carefully probed in people with ASD. This project proposes a proof of mechanism study to test the hypothesis that individual differences in dopaminergic tone will help reveal differences in social motivation, and that modification of dopaminergic tone will impact social ?wanting? and social reward responsivity. We plan to enroll a sample of high-functioning adolescents and young adults with ASD who will be receiving a 16-week social skills training program. We will examine differences in indices at multiple levels of social motivation and social reward, from: 1) neural reward circuit activation; 2) physiologic responses; 3) affective responses to social interaction; and 4) social interest and enjoyment, at pre-treatment, and during the placebo-controlled administration of a dopamine agonist. This project is synergistic with other Center components, obtaining common measures of reward responsivity in Project 3, applying shared Diagnostic and Phenotyping Core measures, and collecting biospecimens for combined genetic and other analyses, enabling broader investigations of heterogeneity across age and gender. Project results will yield a definitive ?Yes? or ?No? confirmation of dopamine as a possible treatment target for social dysfunction in ASD. !

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Specialized Center (P50)
Project #
2P50HD055784-11
Application #
9388807
Study Section
Special Emphasis Panel (ZRG1)
Project Start
Project End
Budget Start
2017-09-07
Budget End
2018-07-31
Support Year
11
Fiscal Year
2017
Total Cost
Indirect Cost
Name
University of California Los Angeles
Department
Type
DUNS #
092530369
City
Los Angeles
State
CA
Country
United States
Zip Code
90095
Dickinson, Abigail; DiStefano, Charlotte; Lin, Yin-Ying et al. (2018) Interhemispheric alpha-band hypoconnectivity in children with autism spectrum disorder. Behav Brain Res 348:227-234
Dickinson, Abigail; DiStefano, Charlotte; Senturk, Damla et al. (2018) Peak alpha frequency is a neural marker of cognitive function across the autism spectrum. Eur J Neurosci 47:643-651
Iverson, Jana M; Northrup, Jessie B; Leezenbaum, Nina B et al. (2018) Early Gesture and Vocabulary Development in Infant Siblings of Children with Autism Spectrum Disorder. J Autism Dev Disord 48:55-71
Miller, Meghan; Iosif, Ana-Maria; Young, Gregory S et al. (2018) The dysregulation profile in preschoolers with and without a family history of autism spectrum disorder. J Child Psychol Psychiatry :
Lawrence, Katherine E; Hernandez, Leanna M; Bookheimer, Susan Y et al. (2018) Atypical longitudinal development of functional connectivity in adolescents with autism spectrum disorder. Autism Res :
Green, Shulamite A; Hernandez, Leanna M; Bowman, Hilary C et al. (2018) Sensory over-responsivity and social cognition in ASD: Effects of aversive sensory stimuli and attentional modulation on neural responses to social cues. Dev Cogn Neurosci 29:127-139
Di Martino, Adriana; O'Connor, David; Chen, Bosi et al. (2017) Enhancing studies of the connectome in autism using the autism brain imaging data exchange II. Sci Data 4:170010
Hernandez, L M; Krasileva, K; Green, S A et al. (2017) Additive effects of oxytocin receptor gene polymorphisms on reward circuitry in youth with autism. Mol Psychiatry 22:1134-1139
Varcin, Kandice J; Jeste, Shafali S (2017) The emergence of autism spectrum disorder: insights gained from studies of brain and behaviour in high-risk infants. Curr Opin Psychiatry 30:85-91
Charman, Tony; Young, Gregory S; Brian, Jessica et al. (2017) Non-ASD outcomes at 36 months in siblings at familial risk for autism spectrum disorder (ASD): A baby siblings research consortium (BSRC) study. Autism Res 10:169-178

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