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Positive Affect Processing and Joint Attention in Infants at High Risk for Autism: An Exploratory Study.

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Title: Positive Affect Processing and Joint Attention in Infants at High Risk for Autism: An Exploratory Study.
Authors: Key, Alexandra, Ibanez, Lisa, Henderson, Heather, Warren, Zachary, Messinger, Daniel, Stone, Wendy
Source: Journal of Autism & Developmental Disorders. Dec2015, Vol. 45 Issue 12, p4051-4062. 12p. 1 Color Photograph, 1 Diagram, 3 Charts, 3 Graphs.
Subjects: Autism risk factors, Affect (Psychology), Analysis of variance, Attention in children, Chi-squared test, Electrodes, Electroencephalography, Evoked potentials (Electrophysiology), Projective techniques, Psychological tests, Research funding, Repeated measures design, Descriptive statistics, Children
Abstract: 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. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Autism+%26+Developmental+Disorders%22">Journal of Autism & Developmental Disorders</searchLink>. Dec2015, Vol. 45 Issue 12, p4051-4062. 12p. 1 Color Photograph, 1 Diagram, 3 Charts, 3 Graphs.
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  Data: 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10803-014-2191-x
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      – SubjectFull: Analysis of variance
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      – SubjectFull: Attention in children
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      – SubjectFull: Chi-squared test
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      – SubjectFull: Electrodes
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      – SubjectFull: Electroencephalography
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      – SubjectFull: Evoked potentials (Electrophysiology)
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      – SubjectFull: Projective techniques
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      – SubjectFull: Psychological tests
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      – SubjectFull: Research funding
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      – SubjectFull: Repeated measures design
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      – SubjectFull: Descriptive statistics
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      – SubjectFull: Children
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      – TitleFull: Positive Affect Processing and Joint Attention in Infants at High Risk for Autism: An Exploratory Study.
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              Text: Dec2015
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