ERIC Number: EJ1082542
Record Type: Journal
Publication Date: 2015-Dec
Abstractor: As Provided
Reference Count: 55
Positive Affect Processing and Joint Attention in Infants at High Risk for Autism: An Exploratory Study
Key, Alexandra P.; Ibanez, Lisa V.; Henderson, Heather A.; Warren, Zachary; Messinger, Daniel S.; Stone, Wendy L.
Journal of Autism and Developmental Disorders, v45 n12 p4051-4062 Dec 2015
Few behavioral indices of risk for autism spectrum disorders (ASD) are present before 12 months, and potential biomarkers remain largely unexamined. This prospective study of infant siblings of children with ASD (n = 16) and low-risk comparison infants (n = 15) examined group differences in event-related potentials (ERPs) indexing processing of facial positive affect (N290/P400, Nc) at 9 months and their relation to joint attention at 15 months. Group differences were most pronounced for subtle facial expressions, in that the low-risk group exhibited relatively longer processing (P400 latency) and greater attention resource allocation (Nc amplitude). Exploratory analyses found associations between ERP responses and later joint attention, suggesting that attention to positive affect cues may support the development of other social competencies.
Descriptors: Autism, Risk, Siblings, Infants, Interpersonal Competence, Cues, Attention, Affective Behavior, Nonverbal Communication
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A