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dc.contributor.authorSchmitt, Lauren M.
dc.contributor.authorBojanek, Erin
dc.contributor.authorWhite, Stormi P.
dc.contributor.authorRagozzino, Michael E.
dc.contributor.authorCook, Edwin H.
dc.contributor.authorSweeney, John A.
dc.contributor.authorMosconi, Matthew W.
dc.date.accessioned2020-06-12T20:01:32Z
dc.date.available2020-06-12T20:01:32Z
dc.date.issued2019-12-12
dc.identifier.citationSchmitt, L. M., Bojanek, E., White, S. P., Ragozzino, M. E., Cook, E. H., Sweeney, J. A., & Mosconi, M. W. (2019). Familiality of behavioral flexibility and response inhibition deficits in autism spectrum disorder (ASD). Molecular autism, 10, 47. https://doi.org/10.1186/s13229-019-0296-yen_US
dc.identifier.urihttp://hdl.handle.net/1808/30464
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractBackground Diminished cognitive control, including reduced behavioral flexibility and behavioral response inhibition, has been repeatedly documented in autism spectrum disorder (ASD). We evaluated behavioral flexibility and response inhibition in probands and their parents using a family trio design to determine the extent to which these cognitive control impairments represent familial traits associated with ASD.

Methods We examined 66 individuals with ASD (probands), 135 unaffected biological parents, and 76 typically developing controls. Participants completed a probabilistic reversal learning task (PRL) and a stop-signal task (SST) to assess behavioral flexibility and response inhibition respectively. Rates of PRL and SST errors were examined across groups, within families, and in relation to clinical and subclinical traits of ASD. Based on prior findings that subclinical broader autism phenotypic (BAP) traits may co-segregate within families and reflect heritable risk factors, we also examined whether cognitive control deficits were more prominent in families in which parents showed BAP features (BAP+).

Results Probands and parents each showed increased rates of PRL and SST errors relative to controls. Error rates across tasks were not related. SST error rates inter-correlated among probands and their parents. PRL errors were more severe in BAP+ parents and their children relative to BAP− parents and their children. For probands of BAP+ parents, PRL and SST error rates were associated with more severe social-communication abnormalities and repetitive behaviors, respectively.

Conclusion Reduced behavioral flexibility and response inhibition are present among probands and their unaffected parents, but represent unique familial deficits associated with ASD that track with separate clinical issues. Specifically, behavioral response inhibition impairments are familial in ASD and manifest independently from parental subclinical features. In contrast, behavioral flexibility deficits are selectively present in families with BAP characteristics, suggesting they co-segregate in families with parental subclinical social, communication, and rigid personality traits. Together, these findings provide evidence that behavioral flexibility and response inhibition impairments track differentially with ASD risk mechanisms and related behavioral traits.
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dc.publisherBMCen_US
dc.rights© 2019 The Author(s).en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.titleFamiliality of behavioral flexibility and response inhibition deficits in autism spectrum disorder (ASD)en_US
dc.typeArticleen_US
kusw.kuauthorBojanek, Erin
kusw.kuauthorMosconi, Matthew W.
kusw.kudepartmentSchiefelbusch Institute for Life Span Studiesen_US
kusw.kudepartmentClinical Child Psychology Programen_US
kusw.kudepartmentKansas Center for Autism Research and Trainingen_US
dc.identifier.doi10.1186/s13229-019-0296-yen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.identifier.pmidPMC6909569en_US
dc.rights.accessrightsopenAccessen_US


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Except where otherwise noted, this item's license is described as: © 2019 The Author(s).