title: Late Positive Potential ERP Responses to Social and Nonsocial Stimuli in Youth with Autism Spectrum Disorder.
abstract: We examined the late positive potential (LPP) event related potential in response to social and nonsocial stimuli from youths 9 to 19 years old with (n = 35) and without (n = 34) ASD. Social stimuli were faces with positive expressions and nonsocial stimuli were related to common restricted interests in ASD (e.g., electronics, vehicles, etc.). The ASD group demonstrated relatively smaller LPP amplitude to social stimuli and relatively larger LPP amplitude to nonsocial stimuli. There were no group differences in subjective ratings of images, and there were no significant correlations between LPP amplitude and ASD symptom severity within the ASD group. LPP results suggest blunted motivational responses to social stimuli and heightened motivational responses to nonsocial stimuli in youth with ASD.
authors.affiliation: Department of Psychology, University of Nevada at Las Vegas, Las Vegas, NV, USA. stephen.benning@unlv.edu.
authors.forename: Stephen D
authors.initials: SD
authors.lastname: Benning
authors.affiliation: New York Presbyterian-Weill Cornell Medical Center, New York, NY, USA.
authors.forename: Megan
authors.initials: M
authors.lastname: Kovac
authors.affiliation: Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
authors.forename: Alana
authors.initials: A
authors.lastname: Campbell
authors.affiliation: University of North Carolina at Chapel Hill School of Social Work, Chapel Hill, NC, USA.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Miller
authors.affiliation: Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.
authors.forename: Eleanor K
authors.initials: EK
authors.lastname: Hanna
authors.affiliation: Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.|Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
authors.forename: Cara R
authors.initials: CR
authors.lastname: Damiano
authors.affiliation: Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.|Geisinger Autism Center, 120 Hamm Drive, Lewisburg, PA, USA.
authors.forename: Antoinette
authors.initials: A
authors.lastname: Sabatino-DiCriscio
authors.affiliation: UNC TEACCH, 100 Renee Lynne Court, Carrboro, NC, USA.
authors.forename: Lauren
authors.initials: L
authors.lastname: Turner-Brown
authors.affiliation: School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX, 75080-3021, USA.
authors.forename: Noah J
authors.initials: NJ
authors.lastname: Sasson
authors.affiliation: Department of Psychology, Vanderbilt University, Nashville, TN, USA.
authors.forename: Rachel V
authors.initials: RV
authors.lastname: Aaron
authors.affiliation: Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
authors.forename: Jessica
authors.initials: J
authors.lastname: Kinard
authors.affiliation: Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. dichter@med.unc.edu.|Department of Psychology and Neuroscience, Duke University, Durham, NC, USA. dichter@med.unc.edu.|Department of Psychiatry, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA. dichter@med.unc.edu.
authors.forename: Gabriel S
authors.initials: GS
authors.lastname: Dichter
mesh_terms: D000293:Adolescent; D001288:Attention; D000067877:Autism Spectrum Disorder / Q000503:physiopathology*; D016022:Case-Control Studies; D002648:Child; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D005149:Facial Expression; D005260:Female; D006801:Humans; D008297:Male; D009042:Motivation; D010775:Photic Stimulation; D012938:Social Perception; D055815:Young Adult
keywords: Autism spectrum disorder; Late positive potential; Motivation; Restricted interests; Social