ADHD- and medication-related brain activation effects in concordantly affected parent–child dyads with ADHD / Jeffery N. EPSTEIN in Journal of Child Psychology and Psychiatry, 48-9 (September 2007)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 48-9 (September 2007) . - p.899–913 Titre : ADHD- and medication-related brain activation effects in concordantly affected parent–child dyads with ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Jeffery N. EPSTEIN, Auteur ; Lisa A. KOTLER, Auteur ; Alan VITOLO, Auteur ; Keith M. SHAFRITZ, Auteur ; Gary GLOVER, Auteur ; Amy GARRETT, Auteur ; Julie A. SPICER, Auteur ; Matthew C. DAVIDSON, Auteur ; B.J. CASEY, Auteur ; Allan L. REISS, Auteur ; Stephen P. HINSHAW, Auteur ; Laurence L. GREENHILL, Auteur ; Simon T. TONEV, Auteur ; Matthew A. JARRETT, Auteur Année de publication : 2007 Article en page(s) : p.899–913 Langues : Anglais (eng) Mots-clés : ADHD adolescence adulthood brain-imaging development fMRI methylphenidate neuropsychology children parents Index. décimale : PER Périodiques Résumé : Background: Several studies have documented fronto-striatal dysfunction in children and adolescents with attention deficit/hyperactivity disorder (ADHD) using response inhibition tasks. Our objective was to examine functional brain abnormalities among youths and adults with ADHD and to examine the relations between these neurobiological abnormalities and response to stimulant medication. Method: A group of concordantly diagnosed ADHD parent–child dyads was compared to a matched sample of normal parent–child dyads. In addition, ADHD dyads were administered double-blind methylphenidate and placebo in a counterbalanced fashion over two consecutive days of testing. Frontostriatal function was measured using functional magnetic resonance imaging (fMRI) during performance of a go/no-go task. Results: Youths and adults with ADHD showed attenuated activity in fronto-striatal regions. In addition, adults with ADHD appeared to activate non-fronto-striatal regions more than normals. A stimulant medication trial showed that among youths, stimulant medication increased activation in fronto-striatal and cerebellar regions. In adults with ADHD, increases in activation were observed in the striatum and cerebellum, but not in prefrontal regions. Conclusions: This study extends findings of fronto-striatal dysfunction to adults with ADHD and highlights the importance of frontostriatal and frontocerebellar circuitry in this disorder, providing evidence of an endophenotype for examining the genetics of ADHD. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2007.01761.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=163 [article] ADHD- and medication-related brain activation effects in concordantly affected parent–child dyads with ADHD [Texte imprimé et/ou numérique] / Jeffery N. EPSTEIN, Auteur ; Lisa A. KOTLER, Auteur ; Alan VITOLO, Auteur ; Keith M. SHAFRITZ, Auteur ; Gary GLOVER, Auteur ; Amy GARRETT, Auteur ; Julie A. SPICER, Auteur ; Matthew C. DAVIDSON, Auteur ; B.J. CASEY, Auteur ; Allan L. REISS, Auteur ; Stephen P. HINSHAW, Auteur ; Laurence L. GREENHILL, Auteur ; Simon T. TONEV, Auteur ; Matthew A. JARRETT, Auteur . - 2007 . - p.899–913. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 48-9 (September 2007) . - p.899–913 Mots-clés : ADHD adolescence adulthood brain-imaging development fMRI methylphenidate neuropsychology children parents Index. décimale : PER Périodiques Résumé : Background: Several studies have documented fronto-striatal dysfunction in children and adolescents with attention deficit/hyperactivity disorder (ADHD) using response inhibition tasks. Our objective was to examine functional brain abnormalities among youths and adults with ADHD and to examine the relations between these neurobiological abnormalities and response to stimulant medication. Method: A group of concordantly diagnosed ADHD parent–child dyads was compared to a matched sample of normal parent–child dyads. In addition, ADHD dyads were administered double-blind methylphenidate and placebo in a counterbalanced fashion over two consecutive days of testing. Frontostriatal function was measured using functional magnetic resonance imaging (fMRI) during performance of a go/no-go task. Results: Youths and adults with ADHD showed attenuated activity in fronto-striatal regions. In addition, adults with ADHD appeared to activate non-fronto-striatal regions more than normals. A stimulant medication trial showed that among youths, stimulant medication increased activation in fronto-striatal and cerebellar regions. In adults with ADHD, increases in activation were observed in the striatum and cerebellum, but not in prefrontal regions. Conclusions: This study extends findings of fronto-striatal dysfunction to adults with ADHD and highlights the importance of frontostriatal and frontocerebellar circuitry in this disorder, providing evidence of an endophenotype for examining the genetics of ADHD. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2007.01761.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=163

Assessing medication effects in the MTA study using neuropsychological outcomes / Jeffery N. EPSTEIN in Journal of Child Psychology and Psychiatry, 47-5 (May 2006)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 47-5 (May 2006) . - p.446–456 Titre : Assessing medication effects in the MTA study using neuropsychological outcomes Type de document : Texte imprimé et/ou numérique Auteurs : Jeffery N. EPSTEIN, Auteur ; Peter S. JENSEN, Auteur ; John S. MARCH, Auteur ; Jeffrey H. NEWCORN, Auteur ; William E. PELHAM, Auteur ; Joanne B. SEVERE, Auteur ; James M. SWANSON, Auteur ; Karen WELLS, Auteur ; Benedetto VITIELLO, Auteur ; Betsy HOZA, Auteur ; Stephen P. HINSHAW, Auteur ; Kimberly HOAGWOOD, Auteur ; C. Keith CONNERS, Auteur ; Aaron S. HERVEY, Auteur ; Simon T. TONEV, Auteur ; L. Eugene ARNOLD, Auteur ; Howard B. ABIKOFF, Auteur ; Glen ELLIOTT, Auteur ; Laurence L. GREENHILL, Auteur ; Lily HECHTMAN, Auteur ; Timothy WIGAL, Auteur Année de publication : 2006 Article en page(s) : p.446–456 Langues : Anglais (eng) Mots-clés : ADHD/ADD go/no-go-test stimulants reaction-time distributions neuropsychology pharmacology Index. décimale : PER Périodiques Résumé : Background: While studies have increasingly investigated deficits in reaction time (RT) and RT variability in children with attention deficit/hyperactivity disorder (ADHD), few studies have examined the effects of stimulant medication on these important neuropsychological outcome measures. Methods: 316 children who participated in the Multimodal Treatment Study of Children with ADHD (MTA) completed the Conners' Continuous Performance Test (CPT) at the 24-month assessment point. Outcome measures included standard CPT outcomes (e.g., errors of commission, mean hit reaction time (RT)) and RT indicators derived from an Ex-Gaussian distributional model (i.e., mu, sigma, and tau). Results: Analyses revealed significant effects of medication across all neuropsychological outcome measures. Results on the Ex-Gaussian outcome measures revealed that stimulant medication slows RT and reduces RT variability. Conclusions: This demonstrates the importance of including analytic strategies that can accurately model the actual distributional pattern, including the positive skew. Further, the results of the study relate to several theoretical models of ADHD. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2005.01469.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=730 [article] Assessing medication effects in the MTA study using neuropsychological outcomes [Texte imprimé et/ou numérique] / Jeffery N. EPSTEIN, Auteur ; Peter S. JENSEN, Auteur ; John S. MARCH, Auteur ; Jeffrey H. NEWCORN, Auteur ; William E. PELHAM, Auteur ; Joanne B. SEVERE, Auteur ; James M. SWANSON, Auteur ; Karen WELLS, Auteur ; Benedetto VITIELLO, Auteur ; Betsy HOZA, Auteur ; Stephen P. HINSHAW, Auteur ; Kimberly HOAGWOOD, Auteur ; C. Keith CONNERS, Auteur ; Aaron S. HERVEY, Auteur ; Simon T. TONEV, Auteur ; L. Eugene ARNOLD, Auteur ; Howard B. ABIKOFF, Auteur ; Glen ELLIOTT, Auteur ; Laurence L. GREENHILL, Auteur ; Lily HECHTMAN, Auteur ; Timothy WIGAL, Auteur . - 2006 . - p.446–456. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 47-5 (May 2006) . - p.446–456 Mots-clés : ADHD/ADD go/no-go-test stimulants reaction-time distributions neuropsychology pharmacology Index. décimale : PER Périodiques Résumé : Background: While studies have increasingly investigated deficits in reaction time (RT) and RT variability in children with attention deficit/hyperactivity disorder (ADHD), few studies have examined the effects of stimulant medication on these important neuropsychological outcome measures. Methods: 316 children who participated in the Multimodal Treatment Study of Children with ADHD (MTA) completed the Conners' Continuous Performance Test (CPT) at the 24-month assessment point. Outcome measures included standard CPT outcomes (e.g., errors of commission, mean hit reaction time (RT)) and RT indicators derived from an Ex-Gaussian distributional model (i.e., mu, sigma, and tau). Results: Analyses revealed significant effects of medication across all neuropsychological outcome measures. Results on the Ex-Gaussian outcome measures revealed that stimulant medication slows RT and reduces RT variability. Conclusions: This demonstrates the importance of including analytic strategies that can accurately model the actual distributional pattern, including the positive skew. Further, the results of the study relate to several theoretical models of ADHD. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2005.01469.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=730

Young adult outcomes in the follow-up of the multimodal treatment study of attention-deficit/hyperactivity disorder: symptom persistence, source discrepancy, and height suppression / James M. SWANSON in Journal of Child Psychology and Psychiatry, 58-6 (June 2017)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 58-6 (June 2017) . - p.663-678 Titre : Young adult outcomes in the follow-up of the multimodal treatment study of attention-deficit/hyperactivity disorder: symptom persistence, source discrepancy, and height suppression Type de document : Texte imprimé et/ou numérique Auteurs : James M. SWANSON, Auteur ; L. Eugene ARNOLD, Auteur ; Brooke S. G. MOLINA, Auteur ; Margaret H. SIBLEY, Auteur ; Lily T. HECHTMAN, Auteur ; Stephen P. HINSHAW, Auteur ; Howard B. ABIKOFF, Auteur ; Annamarie STEHLI, Auteur ; Elizabeth B. OWENS, Auteur ; John T. MITCHELL, Auteur ; Quyen NICHOLS, Auteur ; Andrea HOWARD, Auteur ; Laurence L. GREENHILL, Auteur ; Betsy HOZA, Auteur ; Jeffrey H. NEWCORN, Auteur ; Peter S. JENSEN, Auteur ; Benedetto VITIELLO, Auteur ; Timothy WIGAL, Auteur ; Jeffery N. EPSTEIN, Auteur ; Leanne TAMM, Auteur ; Kimberly D. LAKES, Auteur ; James WAXMONSKY, Auteur ; Marc LERNER, Auteur ; Joy ETCOVITCH, Auteur ; Desiree W. MURRAY, Auteur ; Maximilian MUENKE, Auteur ; Maria T. ACOSTA, Auteur ; Mauricio ARCOS-BURGOS, Auteur ; William E. PELHAM, Auteur ; Helena C. KRAEMER, Auteur ; THE M. T. A. COOPERATIVE GROUP,, Auteur Article en page(s) : p.663-678 Langues : Anglais (eng) Mots-clés : Attention-deficit/hyperactivity disorder  follow-up studies  growth  longitudinal studies  treatment trials  medication effects Index. décimale : PER Périodiques Résumé : Background The Multimodal Treatment Study (MTA) began as a 14-month randomized clinical trial of behavioral and pharmacological treatments of 579 children (7–10 years of age) diagnosed with attention-deficit/hyperactivity disorder (ADHD)-combined type. It transitioned into an observational long-term follow-up of 515 cases consented for continuation and 289 classmates (258 without ADHD) added as a local normative comparison group (LNCG), with assessments 2–16 years after baseline. Methods Primary (symptom severity) and secondary (adult height) outcomes in adulthood were specified. Treatment was monitored to age 18, and naturalistic subgroups were formed based on three patterns of long-term use of stimulant medication (Consistent, Inconsistent, and Negligible). For the follow-up, hypothesis-generating analyses were performed on outcomes in early adulthood (at 25 years of age). Planned comparisons were used to estimate ADHD-LNCG differences reflecting persistence of symptoms and naturalistic subgroup differences reflecting benefit (symptom reduction) and cost (height suppression) associated with extended use of medication. Results For ratings of symptom severity, the ADHD-LNCG comparison was statistically significant for the parent/self-report average (0.51 ± 0.04, p < .0001, d = 1.11), documenting symptom persistence, and for the parent/self-report difference (0.21 ± 0.04, p < .0001, d = .60), documenting source discrepancy, but the comparisons of naturalistic subgroups reflecting medication effects were not significant. For adult height, the ADHD group was 1.29 ± 0.55 cm shorter than the LNCG (p < .01, d = .21), and the comparisons of the naturalistic subgroups were significant: the treated group with the Consistent or Inconsistent pattern was 2.55 ± 0.73 cm shorter than the subgroup with the Negligible pattern (p < .0005, d = .42), and within the treated group, the subgroup with the Consistent pattern was 2.36 ± 1.13 cm shorter than the subgroup with the Inconsistent pattern (p < .04, d = .38). Conclusions In the MTA follow-up into adulthood, the ADHD group showed symptom persistence compared to local norms from the LNCG. Within naturalistic subgroups of ADHD cases, extended use of medication was associated with suppression of adult height but not with reduction of symptom severity. En ligne : http://dx.doi.org/10.1111/jcpp.12684 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=308 [article] Young adult outcomes in the follow-up of the multimodal treatment study of attention-deficit/hyperactivity disorder: symptom persistence, source discrepancy, and height suppression [Texte imprimé et/ou numérique] / James M. SWANSON, Auteur ; L. Eugene ARNOLD, Auteur ; Brooke S. G. MOLINA, Auteur ; Margaret H. SIBLEY, Auteur ; Lily T. HECHTMAN, Auteur ; Stephen P. HINSHAW, Auteur ; Howard B. ABIKOFF, Auteur ; Annamarie STEHLI, Auteur ; Elizabeth B. OWENS, Auteur ; John T. MITCHELL, Auteur ; Quyen NICHOLS, Auteur ; Andrea HOWARD, Auteur ; Laurence L. GREENHILL, Auteur ; Betsy HOZA, Auteur ; Jeffrey H. NEWCORN, Auteur ; Peter S. JENSEN, Auteur ; Benedetto VITIELLO, Auteur ; Timothy WIGAL, Auteur ; Jeffery N. EPSTEIN, Auteur ; Leanne TAMM, Auteur ; Kimberly D. LAKES, Auteur ; James WAXMONSKY, Auteur ; Marc LERNER, Auteur ; Joy ETCOVITCH, Auteur ; Desiree W. MURRAY, Auteur ; Maximilian MUENKE, Auteur ; Maria T. ACOSTA, Auteur ; Mauricio ARCOS-BURGOS, Auteur ; William E. PELHAM, Auteur ; Helena C. KRAEMER, Auteur ; THE M. T. A. COOPERATIVE GROUP,, Auteur . - p.663-678. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 58-6 (June 2017) . - p.663-678 Mots-clés : Attention-deficit/hyperactivity disorder  follow-up studies  growth  longitudinal studies  treatment trials  medication effects Index. décimale : PER Périodiques Résumé : Background The Multimodal Treatment Study (MTA) began as a 14-month randomized clinical trial of behavioral and pharmacological treatments of 579 children (7–10 years of age) diagnosed with attention-deficit/hyperactivity disorder (ADHD)-combined type. It transitioned into an observational long-term follow-up of 515 cases consented for continuation and 289 classmates (258 without ADHD) added as a local normative comparison group (LNCG), with assessments 2–16 years after baseline. Methods Primary (symptom severity) and secondary (adult height) outcomes in adulthood were specified. Treatment was monitored to age 18, and naturalistic subgroups were formed based on three patterns of long-term use of stimulant medication (Consistent, Inconsistent, and Negligible). For the follow-up, hypothesis-generating analyses were performed on outcomes in early adulthood (at 25 years of age). Planned comparisons were used to estimate ADHD-LNCG differences reflecting persistence of symptoms and naturalistic subgroup differences reflecting benefit (symptom reduction) and cost (height suppression) associated with extended use of medication. Results For ratings of symptom severity, the ADHD-LNCG comparison was statistically significant for the parent/self-report average (0.51 ± 0.04, p < .0001, d = 1.11), documenting symptom persistence, and for the parent/self-report difference (0.21 ± 0.04, p < .0001, d = .60), documenting source discrepancy, but the comparisons of naturalistic subgroups reflecting medication effects were not significant. For adult height, the ADHD group was 1.29 ± 0.55 cm shorter than the LNCG (p < .01, d = .21), and the comparisons of the naturalistic subgroups were significant: the treated group with the Consistent or Inconsistent pattern was 2.55 ± 0.73 cm shorter than the subgroup with the Negligible pattern (p < .0005, d = .42), and within the treated group, the subgroup with the Consistent pattern was 2.36 ± 1.13 cm shorter than the subgroup with the Inconsistent pattern (p < .04, d = .38). Conclusions In the MTA follow-up into adulthood, the ADHD group showed symptom persistence compared to local norms from the LNCG. Within naturalistic subgroups of ADHD cases, extended use of medication was associated with suppression of adult height but not with reduction of symptom severity. En ligne : http://dx.doi.org/10.1111/jcpp.12684 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=308

---

1 (1 - 3 / 3)