T
Timothy Wigal
Researcher at University of California, Irvine
Publications - 117
Citations - 16455
Timothy Wigal is an academic researcher from University of California, Irvine. The author has contributed to research in topics: Attention deficit hyperactivity disorder & Randomized controlled trial. The author has an hindex of 56, co-authored 117 publications receiving 15311 citations.
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Journal ArticleDOI
The MTA at 8 Years: Prospective Follow-up of Children Treated for Combined-Type ADHD in a Multisite Study
Brooke S. G. Molina,Stephen P. Hinshaw,James M. Swanson,L. Eugene Arnold,Benedetto Vitiello,Peter S. Jensen,Jeffery N. Epstein,Betsy Hoza,Lily Hechtman,Howard Abikoff,Glen R. Elliott,Laurence L. Greenhill,Jeffrey H. Newcorn,Karen C. Wells,Timothy Wigal,Robert D. Gibbons,Kwan Hur,Patricia R. Houck +17 more
TL;DR: Type or intensity of 14 months of treatment for ADHD in childhood does not predict functioning 6 to 8 years later, and early ADHD symptom trajectory regardless of treatment type is prognostic, implying that children with behavioral and sociodemographic advantage, with the best response to any treatment, will have the best long-term prognosis.
Journal ArticleDOI
Clinical relevance of the primary findings of the MTA: success rates based on severity of ADHD and ODD symptoms at the end of treatment.
James M. Swanson,Helena C. Kraemer,Stephen P. Hinshaw,L. Eugene Arnold,C. Keith Conners,Howard Abikoff,Walter Clevenger,Mark Davies,Glen R. Elliott,Laurence L. Greenhill,Lily Hechtman,Betsy Hoza,Peter S. Jensen,John S. March,Jeffrey H. Newcorn,Elizabeth B. Owens,William E. Pelham,E. Schiller,Joanne B. Severe,Steve Simpson,Benedetto Vitiello,Karen C. Wells,Timothy Wigal,Min Wu +23 more
TL;DR: These secondary analyses confirm the primary findings and clarify clinical decisions about the choice between multimodal and unimodal treatment with medication.
Journal ArticleDOI
ADHD Comorbidity Findings From the MTA Study: Comparing Comorbid Subgroups
Peter S. Jensen,Stephen P. Hinshaw,Helena C. Kraemer,Nilantha Lenora,Jeffrey H. Newcorn,Howard Abikoff,John S. March,L. Eugene Arnold,Dennis P. Cantwell,C. Keith Conners,Glen R. Elliott,Laurence L. Greenhill,Lily Hechtman,Betsy Hoza,William E. Pelham,Joanne B. Severe,James M. Swanson,Karen C. Wells,Timothy Wigal,Benedetto Vitiello +19 more
TL;DR: Three clinical profiles are indicated, ADHD co-occurring with internalizing disorders (principally parent-reported anxiety disorders) absent any concurrent disruptive disorder (ADHD + ANX), ADHD Co-occurred with ODD/CD but no anxiety (AD HD + ODD /CD), and ADHD with both anxiety and O DD/CD may be sufficiently distinct to warrant classification as ADHD subtypes different from "pure" ADHD with neither comorbidity.
Journal ArticleDOI
The Ecological Validity of Delay Aversion and Response Inhibition as Measures of Impulsivity in AD/HD: A Supplement to the NIMH Multimodal Treatment Study of AD/HD
Mary V. Solanto,Howard Abikoff,Howard Abikoff,Edmund J.S. Sonuga-Barke,Russell Schachar,Gordon D. Logan,Timothy Wigal,Lily Hechtman,Stephen P. Hinshaw,Elihu Turkel +9 more
TL;DR: This study compared the ecological validity of the Stop Signal Task (SST) and Choice-Delay Task (C-DT) measure of delay aversion with their correlations with classroom observations and with ratings of impulsivity and other core AD/HD symptoms on the Conners and SNAP-IV checklists.
Journal ArticleDOI
3-Year Follow-up of the NIMH MTA Study
Peter S. Jensen,L. Eugene Arnold,James M. Swanson,Benedetto Vitiello,Howard Abikoff,Laurence L. Greenhill,Lily Hechtman,Lily Hechtman,Stephen P. Hinshaw,William E. Pelham,Karen C. Wells,C. Keith Conners,Glen R. Elliott,Jeffery N. Epstein,Betsy Hoza,John S. March,Brooke S. G. Molina,Jeffrey H. Newcorn,Jeffrey H. Newcorn,Joanne B. Severe,Timothy Wigal,Robert D. Gibbons,Kwan Hur +22 more
TL;DR: By 36 months, the earlier advantage of having had 14 months of the medication algorithm was no longer apparent, possibly due to age-related decline in ADHD symptoms, changes in medication management intensity, starting or stopping medications altogether, or other factors not yet evaluated.