Repetitive behavior profiles: consistency across autism spectrum disorder cohorts and divergence from Prader–Willi syndrome
Open accessAbstract
Restricted and repetitive behavior (RRB) is a group of heterogeneous maladaptive behaviors. RRB is one of the key diagnostic features of autism spectrum disorders (ASDs) and also commonly observed in Prader-Willi syndrome (PWS). In this study, we assessed RRB using the Repetitive Behavior Scale-Revised (RBS-R) in two ASD samples (University of Illinois at Chicago [UIC] and University of Florida [UF]) and one PWS sample. We compared the RBS-R item endorsements across three ASD cohorts (UIC, UF and an ASD sample from Lam, The Repetitive Behavior Scale-Revised: independent validation and the effect of subject variables, PhD thesis, 2004), and a PWS sample. We also compared the mean RBS-R subscale/sum scores across the UIC, UF and PWS samples; across the combined ASD (UIC + UF), PWS-deletion and PWS-disomy groups; and across the combined ASD sample, PWS subgroup with a Social Communication Questionnaire (SCQ) score ≥15, and PWS subgroup with a SCQ score <15. Despite the highly heterogeneous nature, the three ASD samples (UIC, UF and Lam's) showed a similar pattern of the RBS-R endorsements, and the mean RBS-R scores were not different between the UIC and UF samples. However, higher RRB was noted in the ASD sample compared with the PWS sample, as well as in the PWS subgroup with a SCQ score ≥15 compared with the PWS subgroup with a SCQ score <15. Study limitations include a small sample size, a wide age range of our participants, and not controlling for potential covariates. A future replication study using a larger sample and further investigation into the genetic bases of overlapping ASD and RRB phenomenology are needed, given the higher RRB in the PWS subgroup with a SCQ score ≥15.
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RRB is also evidenced in Prader-Willi syndrome, although to a lesser degree than in ASD as measured by the Repetitive Behavior Scale-Revised.
“Furthermore, RRB is also evidenced in PWS (Greaves et al., 2006), although to a lesser degree than in ASD as measured by the Repetitive Behavior Scale-Revised (RBS-R; Flores et al., 2011).”
From Oxytocin and vasopressin systems in genetic syndromes and neurodevelopmental disorders (2014) · cites this paper as Flores et al., 2011
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- Authors
- Flores, C. G., Valcante, G., Guter, S., Zaytoun, A., Wray, E., Bell, L., Jacob, S., Lewis, M. H., Driscoll, D. J., Cook, E. H., & Kim, S.-J.
- Affiliations
- University of Florida (US)
- University of Illinois Chicago (US)
- University of Florida Health (US)
- University of Washington (US)
- Corresponding author
- Kim, Soo-Jeong
- Venue
- Journal of Neurodevelopmental Disorders
- Published
- 2011-09-01
- Volume
- 3
- Issue
- 4
- Pages
- 316-324
- ISSN
- 1866-1947 (ISSN-L)
- 1866-1955
- PMC
- PMC3261264
- OpenAlex
- W2111021671
- Cited by
- 30
- References
- 44
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 4 · 2017: 1 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 1
- FWCI
- 0.81
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Journal of Neurodevelopmental Disorders (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Alliance for Research on Schizophrenia and Depression
- National Institutes of Health (HD055751)
- University of Illinois at Urbana-Champaign
- National Institute of Mental Health (R03MH083673, K23MH082883, K23MH082121)
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (P50HD055751)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
- Health Sciences › Medicine › Psychiatry and Mental health › Child Nutrition and Feeding Issues
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
- Keywords
- restricted and repetitive behaviors, autism spectrum disorder, Prader-Willi syndrome, Repetitive Behavior Scale-Revised, behavioral profiles, social communication, genetic overlap
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