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Sacu S, Aggensteiner PM, Monninger M, Kaiser A, Brandeis D, Banaschewski T, Holz NE. Lifespan adversities affect neural correlates of behavioral inhibition in adults. Front Psychiatry 2024; 15:1298695. [PMID: 38317765 PMCID: PMC10840329 DOI: 10.3389/fpsyt.2024.1298695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/03/2024] [Indexed: 02/07/2024] Open
Abstract
Introduction Growing evidence suggests that adverse experiences have long-term effects on executive functioning and underlying neural circuits. Previous work has identified functional abnormalities during inhibitory control in frontal brain regions in individuals exposed to adversities. However, these findings were mostly limited to specific adversity types such as maltreatment and prenatal substance abuse. Methods We used data from a longitudinal birth cohort study (n = 121, 70 females) to investigate the association between adversities and brain responses during inhibitory control. At the age of 33 years, all participants completed a stop-signal task during fMRI and an Adult Self-Report scale. We collected seven prenatal and postnatal adversity measures across development and performed a principal component analysis to capture common variations across those adversities, which resulted in a three-factor solution. Multiple regression analysis was performed to identify links between adversities and brain responses during inhibitory control using the identified adversity factors to show the common effect and single adversity measures to show the specific contribution of each adversity. To find neural correlates of current psychopathology during inhibitory control, we performed additional regression analyses using Adult Self-Report subscales. Results The first adversity factor reflecting prenatal maternal smoking and postnatal psychosocial adversities was related to higher activation during inhibitory control in bilateral inferior frontal gyri, insula, anterior cingulate cortex, and middle temporal gyri. Similar results were found for the specific contribution of the adversities linked to the first adversity factor. In contrast, we did not identify any significant association between brain responses during inhibitory control and the second adversity factor reflecting prenatal maternal stress and obstetric risk or the third adversity factor reflecting lower maternal sensitivity. Higher current depressive symptoms were associated with higher activation in the bilateral insula and anterior cingulate cortex during inhibitory control. Conclusion Our findings extended previous work and showed that early adverse experiences have a long-term effect on the neural circuitry of inhibitory control in adulthood. Furthermore, the overlap between neural correlates of adversity and depressive symptomatology suggests that adverse experiences might increase vulnerability via neural alterations, which needs to be investigated by future longitudinal research.
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Affiliation(s)
- Seda Sacu
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Pascal-M. Aggensteiner
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Maximilian Monninger
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Anna Kaiser
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Daniel Brandeis
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Tobias Banaschewski
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Nathalie E. Holz
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Donders Center for Brain, Cognition and Behavior, Radboud University Nijmegen, Nijmegen, Netherlands
- Department for Cognitive Neuroscience, Radboud University Medical Center Nijmegen, Nijmegen, Netherlands
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Karavallil Achuthan S, Stavrinos D, Holm HB, Anteraper SA, Kana RK. Alterations of Functional Connectivity in Autism and Attention-Deficit/Hyperactivity Disorder Revealed by Multi-Voxel Pattern Analysis. Brain Connect 2023; 13:528-540. [PMID: 37522594 DOI: 10.1089/brain.2023.0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Abstract
Background: Autism and attention-deficit/hyperactivity disorder (ADHD) are comorbid neurodevelopmental disorders that share common and distinct neurobiological mechanisms, with disrupted brain connectivity patterns being a hallmark feature of both conditions. It is challenging to gain a mechanistic understanding of the underlying disorder, because brain connectivity changes in autism and ADHD are heterogeneous. Objectives: The present resting state functional MRI (rs-fMRI) study focuses on investigating the shared and distinct resting state-fMRI connectivity (rsFC) patterns in autistic and ADHD adults using multi-voxel pattern analysis (MVPA). By identifying spatial patterns of fMRI activity across a given time course, MVPA is an innovative and powerful method for generating seed regions of interest (ROIs) without a priori hypotheses. Methods: We performed a data-driven, whole-brain, connectome-wide MVPA on rs-fMRI data collected from 15 autistic, 19 ADHD, and 15 neurotypical (NT) young adults. Results: MVPA identified cerebellar vermis 9, precuneus, and the right cerebellum VI for autistic versus NT, right inferior frontal gyrus and vermis 9 for ADHD versus NT, and right dorsolateral prefrontal cortex for autistic versus ADHD as significant clusters. Post hoc seed-to-voxel analyses using these clusters as seed ROIs were performed for further characterization of group differences. The cerebellum VI, vermis, and precuneus in autistic adults, and the vermis and frontal regions in ADHD showed different connectivity patterns in comparison with NT. Conclusions: The study characterizes the rsFC profile of cerebellum with key cortical areas in autism and ADHD, and it emphasizes the importance of studying the role of the functional connectivity of the cerebellum in neurodevelopmental disorders.
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Affiliation(s)
- Smitha Karavallil Achuthan
- Department of Psychology & The Center for Innovative Research in Autism, University of Alabama, Tuscaloosa, Alabama, USA
| | - Despina Stavrinos
- Department of Psychology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Haley B Holm
- Children's Hospital of Atlanta, Atlanta, Georgia, USA
| | - Sheeba Arnold Anteraper
- Stephens Family Clinical Research Institute, Carle Illinois Advanced Imaging Center, Urbana, Illinois, USA
| | - Rajesh K Kana
- Department of Psychology & The Center for Innovative Research in Autism, University of Alabama, Tuscaloosa, Alabama, USA
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van Ruitenbeek P, Franzen L, Mason NL, Stiers P, Ramaekers JG. Methylphenidate as a treatment option for substance use disorder: a transdiagnostic perspective. Front Psychiatry 2023; 14:1208120. [PMID: 37599874 PMCID: PMC10435872 DOI: 10.3389/fpsyt.2023.1208120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/14/2023] [Indexed: 08/22/2023] Open
Abstract
A transition in viewing mental disorders from conditions defined as a set of unique characteristics to one of the quantitative variations on a collection of dimensions allows overlap between disorders. The overlap can be utilized to extend to treatment approaches. Here, we consider the overlap between attention-deficit/hyperactivity disorder and substance use disorder to probe the suitability to use methylphenidate as a treatment for substance use disorder. Both disorders are characterized by maladaptive goal-directed behavior, impaired cognitive control, hyperactive phasic dopaminergic neurotransmission in the striatum, prefrontal hypoactivation, and reduced frontal cortex gray matter volume/density. In addition, methylphenidate has been shown to improve cognitive control and normalize associated brain activation in substance use disorder patients and clinical trials have found methylphenidate to improve clinical outcomes. Despite the theoretical basis and promising, but preliminary, outcomes, many questions remain unanswered. Most prominent is whether all patients who are addicted to different substances may equally profit from methylphenidate treatment.
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Affiliation(s)
- Peter van Ruitenbeek
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands
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Effect of psychostimulant medications on static balance performance in adults with attention deficit hyperactivity disorder: Within-subjects repeated-measure study. Hum Mov Sci 2023; 88:103067. [PMID: 36780727 DOI: 10.1016/j.humov.2023.103067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/15/2023]
Abstract
OBJECTIVE This study examined the effect of psychostimulant medications nPS) on balance and functional motor performance in adults with attention-deficit/hyperactivity disorder (ADHD). METHODS Participants completed two sessions (off-medication and on-medication) in a within-subjects repeated-measure study design. There was a minimum of seven days between the two sessions. During both sessions, participants stood for 30 s per condition on a force platform. The conditions were: feet-apart with 1) eyes-open and 2) eyes-closed; feet-together with 3) eyes-open and 4) eyes-closed. Participants performed three trials of timed up and go (TUG) and lateral step-up test (LSUT) during both sessions. Outcome measures were sway area (SA [cm2]), average sway velocity (SV [cm/s]), TUG average time (s), and average number of LSUT repetitions. Data were analyzed using multivariate repeated measures analysis of variance and paired t-tests for examining PS effects on balance (SA and SV) and functional motor performance (TUG and LSUT), respectively. RESULTS The sample included 45 adults (35 females; mean age = 28.4 ± 6.3 years). The repeated-measures MANOVA indicated that PS was associated with better SA [F(1,44) = 9.6; p = 0.003;ηp2 = 0.18] but not with SV [F(1,44) = 1.0; p = 0.319;ηp2 = 0.02]. PS was associated with significantly better SA with decreasing base-of-support [F(1,44) = 9.9; p = 0.003;ηp2 = 0.18]. Additionally, PS use was associated with better TUG [t(1,44) = 2.65; p = 0.014;Cohen's d = 0.39] but not LSUT performances [t(1,44) = -0.68; p = 0.499;Cohen's d = -0.10]. CONCLUSIONS PS was associated with better SA and TUG in adults with ADHD. Further studies are needed to investigate the effects of PS on balance performance using rigorous designs in this population. IMPACT Healthcare providers should screen for PS status and balance when treating adults with ADHD to enhance safe motor performance.
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Long Y, Pan N, Ji S, Qin K, Chen Y, Zhang X, He M, Suo X, Yu Y, Wang S, Gong Q. Distinct brain structural abnormalities in attention-deficit/hyperactivity disorder and substance use disorders: A comparative meta-analysis. Transl Psychiatry 2022; 12:368. [PMID: 36068207 PMCID: PMC9448791 DOI: 10.1038/s41398-022-02130-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 11/09/2022] Open
Abstract
As two common mental disorders during the period of adolescence that extend to early adulthood, attention-deficit/hyperactivity disorder (ADHD) and substance use disorders (SUDs) have considerable diagnostic co-occurrence and shared neuropsychological impairments. Our study aimed to identify overlapping and distinct brain structural abnormalities associated with ADHD and SUDs among adolescents and young adults. A systematic literature search on voxel-based morphometry (VBM) studies of ADHD and SUDs was conducted in PubMed and Web of Science. Data were extracted and analyzed to identify brain abnormalities using Seed-based d-Mapping software. Data-driven functional decoding was conducted to identify the psychophysiological functioning associated with brain alterations. 13 and 14 VBM studies for ADHD (619 patients and 483 controls) and SUDs (516 patients and 413 controls), respectively, were included. Patterns of decreased gray matter volume (GMV) were found in the left precentral gyrus, bilateral superior frontal gyri, and left inferior frontal gyrus in the ADHD group compared to the control group. In contrast, individuals with SUDs, relative to controls, were characterized by increased GMV in the left putamen and insula. Comparative analysis indicated larger regional GMV in the right inferior parietal lobule and smaller volumes in the left putamen and left precentral gyrus in the ADHD group than in the SUDs group. Dissociable brain structural abnormalities in adolescents and young adults with ADHD and SUDs potentially implicate different pathogeneses and provide a reference for differential diagnosis and early detection for shared symptomology and comorbidity.
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Affiliation(s)
- Yajing Long
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Nanfang Pan
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Shiyu Ji
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China ,grid.21107.350000 0001 2171 9311Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD USA
| | - Kun Qin
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China ,grid.24827.3b0000 0001 2179 9593Department of Psychiatry, University of Cincinnati, Cincinnati, OH USA
| | - Ying Chen
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Xun Zhang
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Min He
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Xueling Suo
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Yifan Yu
- grid.412901.f0000 0004 1770 1022Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China ,grid.506261.60000 0001 0706 7839Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China ,grid.412901.f0000 0004 1770 1022Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Song Wang
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China. .,Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China. .,Functional & Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China.
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China. .,Department of Radiology, West China Xiamen Hospital of Sichuan University, Xiamen, China.
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Agnew-Blais JC, Polanczyk GV, Danese A, Wertz J, Moffitt TE, Arseneault L. Are changes in ADHD course reflected in differences in IQ and executive functioning from childhood to young adulthood? Psychol Med 2020; 50:2799-2808. [PMID: 31718730 DOI: 10.1017/s0033291719003015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Attention-deficit hyperactivity disorder (ADHD) is associated with poorer cognitive functioning. We used a developmental, genetically-sensitive approach to examine intelligence quotient (IQ) from early childhood to young adulthood among those with different ADHD courses to investigate whether changes in ADHD were reflected in differences in IQ. We also examined executive functioning in childhood and young adulthood among different ADHD courses. METHODS Study participants were part of the Environmental Risk (E-Risk) Longitudinal Twin Study, a population-based birth cohort of 2232 twins. We assessed ADHD in childhood (ages 5, 7, 10 and 12) and young adulthood (age 18). We examined ADHD course as reflected by remission, persistence and late-onset. IQ was evaluated at ages 5, 12 and 18, and executive functioning at ages 5 and 18. RESULTS ADHD groups showed deficits in IQ across development compared to controls; those with persistent ADHD showed the greatest deficit, followed by remitted and late-onset. ADHD groups did not differ from controls in developmental trajectory of IQ, suggesting changes in ADHD were not reflected in IQ. All ADHD groups performed more poorly on executive functioning tasks at ages 5 and 18; persisters and remitters differed only on an inhibitory control task at age 18. CONCLUSIONS Differences in ADHD course - persistence, remission and late-onset - were not directly reflected in changes in IQ. Instead, having ADHD at any point across development was associated with lower average IQ and poorer executive functioning. Our finding that individuals with persistent ADHD have poorer response inhibition than those who remitted requires replication.
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Affiliation(s)
- Jessica C Agnew-Blais
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | | | - Andrea Danese
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- National and Specialist Child Traumatic Stress and Anxiety Clinic, South London and Maudsley NHS Foundation Trust, London, UK
| | - Jasmin Wertz
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Terrie E Moffitt
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Louise Arseneault
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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A Multimodal Analysis Combining Behavioral Experiments and Survey-Based Methods to Assess the Cognitive Effect of Video Game Playing: Good or Evil? SENSORS 2020; 20:s20113219. [PMID: 32517096 PMCID: PMC7308934 DOI: 10.3390/s20113219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 11/16/2022]
Abstract
This study aims to bridge the gap between the discrepant views of existing studies in different modalities on the cognitive effect of video game play. To this end, we conducted a set of tests with different modalities within each participant: (1) Self-Reports Analyses (SRA) consisting of five popular self-report surveys, and (2) a standard Behavioral Experiment (BE) using pro- and antisaccade paradigms, and analyzed how their results vary between Video Game Player (VGP) and Non-Video Game Player (NVGP) participant groups. Our result showed that (1) VGP scored significantly lower in Behavioral Inhibition System (BIS) than NVGP (p = 0.023), and (2) VGP showed significantly higher antisaccade error rate than NVGP (p = 0.005), suggesting that results of both SRA and BE support the existing view that video game play has a maleficent impact on the cognition by increasing impulsivity. However, the following correlation analysis on the results across individual participants found no significant correlation between SRA and BE, indicating a complex nature of the cognitive effect of video game play.
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Chevrier A, Schachar RJ. BOLD differences normally attributed to inhibitory control predict symptoms, not task-directed inhibitory control in ADHD. J Neurodev Disord 2020; 12:8. [PMID: 32085698 PMCID: PMC7035717 DOI: 10.1186/s11689-020-09311-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 02/13/2020] [Indexed: 01/24/2023] Open
Abstract
Background Altered brain activity that has been observed in attention deficit hyperactivity disorder (ADHD) while performing cognitive control tasks like the stop signal task (SST) has generally been interpreted as reflecting either weak (under-active) or compensatory (over-active) versions of the same functions as in healthy controls. If so, then regional activities that correlate with the efficiency of inhibitory control (i.e. stop signal reaction time, SSRT) in healthy subjects should also correlate with SSRT in ADHD. Here we test the alternate hypothesis that BOLD (blood-oxygen-level-dependent) differences might instead reflect the redirection of neural processing resources normally used for task-directed inhibitory control, towards actively managing symptomatic behaviour. If so, then activities that correlate with SSRT in TD should instead correlate with inattentive and hyperactive symptoms in ADHD. Methods We used fMRI (functional magnetic resonance imaging) in 14 typically developing (TD) and 14 ADHD adolescents performing the SST, and in a replication sample of 14 healthy adults. First, we identified significant group BOLD differences during all phases of activity in the SST (i.e. warning, response, reactive inhibition, error detection and post-error slowing). Next, we correlated these phases of activity with SSRT in TD and with SSRT, inattentive and hyperactive symptom scores in ADHD. We then identified whole brain significant correlations in regions of significant group difference in activity. Results Only three regions of significant group difference were correlated with SSRT in TD and replication groups (left and right inferior frontal gyri (IFG) during error detection and hypothalamus during post-error slowing). Consistent with regions of altered activity managing symptomatic behaviour instead of task-directed behaviour, left IFG correlated with greater inattentive score, right IFG correlated with lower hyperactive score and hypothalamus correlated with greater inattentive score and oppositely correlated with SSRT compared to TD. Conclusions Stimuli that elicit task-directed integration of neural processing in healthy subjects instead appear to be directing integrated function towards managing symptomatic behaviour in ADHD. The ability of the current approach to determine whether altered neural activities reflect comparable functions in ADHD and control groups has broad implications for the development and monitoring of therapeutic interventions.
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Affiliation(s)
- Andre Chevrier
- Department of Psychiatry, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Russell J Schachar
- Department of Psychiatry, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
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Boon HJ. What do ADHD Neuroimaging Studies Reveal for Teachers, Teacher Educators and Inclusive Education? CHILD & YOUTH CARE FORUM 2020. [DOI: 10.1007/s10566-019-09542-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kolodny T, Mevorach C, Stern P, Biderman N, Ankaoua M, Tsafrir S, Shalev L. Fronto-parietal engagement in response inhibition is inversely scaled with attention-deficit/hyperactivity disorder symptom severity. NEUROIMAGE-CLINICAL 2019; 25:102119. [PMID: 31865022 PMCID: PMC6928458 DOI: 10.1016/j.nicl.2019.102119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 11/22/2019] [Accepted: 12/08/2019] [Indexed: 12/25/2022]
Abstract
A novel Go/No-go task points to a critical role for the IPS in response inhibition. IPS engagement in response inhibition is scaled back with ADHD symptom severity. Fronto-parietal connectivity increases when response inhibition is challenging. Connectivity modulation is also scaled back with ADHD symptom severity.
Background Impaired response inhibition is one of the most consistent findings in attention deficit hyperactivity disorder (ADHD). However, the underlying brain mechanisms are not clear. This study aimed to underpin atypical inhibition-related brain activation and connectivity patterns in ADHD using a novel Go/No-go task design, and to determine its association with clinical symptoms of the disorder. Methods Forty-eight adults with ADHD performed a Go/No-go task in which target frequency was manipulated during functional MRI. Specific inhibition-related brain activation was correlated with ADHD symptom severity, to assess the relationship of individual differences in engagement of inhibition-related brain circuits with the magnitude of every-day functioning impairments. Finally, generalized psychophysical interaction analyses were carried out to examine whether not only engagement but also functional connectivity between regions implicated in response inhibition is related to symptom severity. Results We found no evidence for the expected parietal modulation by increased demand for inhibition at the group-level results. However, this lack of modulation was mediated by individual differences in ADHD symptom severity – increased engagement of the intraparietal sulcus (IPS) in inhibition-demanding events was evident in individuals with less severe symptoms but dissipated with increase in symptomatology. Similarly, functional connectivity between the IPS and the right inferior frontal gyrus (rIFG) was elevated under high inhibitory demand conditions, but this effect diminished with increased symptom severity. Conclusions The results highlight the importance of IPS engagement in response inhibition and suggest that IPS modulation may be driven by top-down control from the IFG. Moreover, the current findings force the point of treating ADHD as a continuum whereby brain correlates are scaled with severity of the disorder, and point to the potential use of individual differences in the modulation of IPS activation and connectivity as a neuromarker of ADHD.
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Affiliation(s)
- Tamar Kolodny
- Department of Cognitive Science, The Hebrew University, Jerusalem, Israel.
| | - Carmel Mevorach
- School of Psychology and the Centre for Human Brain Health, University of Birmingham, Birmingham, UK
| | - Pnina Stern
- Constantiner School of Education, Tel-Aviv University, Tel-Aviv, Israel
| | - Natalie Biderman
- School of Psychological Sciences, Tel-Aviv University, Tel-Aviv, Israel
| | - Maya Ankaoua
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | | | - Lilach Shalev
- Constantiner School of Education, Tel-Aviv University, Tel-Aviv, Israel; Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
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Guo J, Luo X, Wang E, Li B, Chang Q, Sun L, Song Y. Abnormal alpha modulation in response to human eye gaze predicts inattention severity in children with ADHD. Dev Cogn Neurosci 2019; 38:100671. [PMID: 31229834 PMCID: PMC6969336 DOI: 10.1016/j.dcn.2019.100671] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 05/26/2019] [Accepted: 06/10/2019] [Indexed: 01/05/2023] Open
Abstract
In response to the human eye gaze, compared with TD children, ADHD children showed a decreased alpha lateralization. The attenuation of alpha modulation in ADHD children was mainly manifested in the left hemisphere. The left hemisphere alpha modulation predicted higher inattentive severity and lower behavioural accuracy in ADHD children. Classification analysis showed the left alpha modulation has a high capability to recognize ADHD from TD children.
Attention-deficit/hyperactivity disorder (ADHD) is characterized by problems in directing and sustaining attention. Recent behavioral studies indicated that children with ADHD are more likely to fail to show the orienting effect in response to human eye gaze. The present study aimed to identify the neurophysiological bases of attention deficits directed by social human eye gaze in children with ADHD, focusing on the relationship between alpha modulations and ADHD symptoms. The electroencephalography data were recorded from 8–13-year-old children (typically developing (TD): n = 24; ADHD: n = 21) while they performed a cued visuospatial covert attention task. The cues were designed as human eyes that might gaze to the left or right visual field. The results revealed that TD children showed a significant alpha lateralization in response to the gaze of human eyes, whereas children with ADHD showed an inverse pattern of alpha modulation in the left parieto-occipital area. Importantly, the abnormal alpha modulation in the left hemisphere predicted inattentive symptom severity and behavioral accuracy in children with ADHD. These results suggest that the dysfunction of alpha modulation in the left hemisphere in response to social cues might be a potential neurophysiologic marker of attention deficit in children with ADHD.
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Affiliation(s)
- Jialiang Guo
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Xiangsheng Luo
- Peking University Sixth Hospital/Institute of Mental Health, Beijing, China; National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Encong Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Bingkun Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Qinyuan Chang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Li Sun
- Peking University Sixth Hospital/Institute of Mental Health, Beijing, China; National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China.
| | - Yan Song
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Center for Collaboration and Innovation in Brain and Learning Sciences, Beijing Normal University, Beijing, China.
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12
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Hirjak D, Meyer-Lindenberg A, Fritze S, Sambataro F, Kubera KM, Wolf RC. Motor dysfunction as research domain across bipolar, obsessive-compulsive and neurodevelopmental disorders. Neurosci Biobehav Rev 2018; 95:315-335. [PMID: 30236781 DOI: 10.1016/j.neubiorev.2018.09.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 08/08/2018] [Accepted: 09/12/2018] [Indexed: 02/07/2023]
Abstract
Although genuine motor abnormalities (GMA) are frequently found in schizophrenia, they are also considered as an intrinsic feature of bipolar, obsessive-compulsive, and neurodevelopmental disorders with early onset such as autism, ADHD, and Tourette syndrome. Such transnosological observations strongly suggest a common neural pathophysiology. This systematic review highlights the evidence on GMA and their neuroanatomical substrates in bipolar, obsessive-compulsive, and neurodevelopmental disorders. The data lends support for a common pattern contributing to GMA expression in these diseases that seems to be related to cerebello-thalamo-cortical, fronto-parietal, and cortico-subcortical motor circuit dysfunction. The identified studies provide first evidence for a motor network dysfunction as a correlate of early neurodevelopmental deviance prior to clinical symptom expression. There are also first hints for a developmental risk factor model of these mental disorders. An in-depth analysis of motor networks and related patho-(physiological) mechanisms will not only help promoting Research Domain Criteria (RDoC) Motor System construct, but also facilitate the development of novel psychopharmacological models, as well as the identification of neurobiologically plausible target sites for non-invasive brain stimulation.
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Affiliation(s)
- Dusan Hirjak
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
| | - Andreas Meyer-Lindenberg
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Stefan Fritze
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | - Katharina M Kubera
- Center for Psychosocial Medicine, Department of General Psychiatry, Heidelberg University, Heidelberg, Germany
| | - Robert C Wolf
- Center for Psychosocial Medicine, Department of General Psychiatry, Heidelberg University, Heidelberg, Germany
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13
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Age sensitive associations of adolescent substance use with amygdalar, ventral striatum, and frontal volumes in young adulthood. Drug Alcohol Depend 2018; 186:94-101. [PMID: 29558674 PMCID: PMC5911233 DOI: 10.1016/j.drugalcdep.2018.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 01/30/2018] [Accepted: 02/03/2018] [Indexed: 01/19/2023]
Abstract
INTRODUCTION This study evaluated an age sensitive model of substance use across adolescence to determine if substance use was associated with smaller volumes for an earlier developing brain region, the amygdala, a later developing region, the inferior frontal gyrus, and the ventral striatum. METHOD Participants (N = 110) were African American young adults who were members of a longitudinal cohort across childhood and adolescence. Measures of substance use were collected across early (ages 12-15 yrs.), middle (ages 16-18 yrs.), and later (ages 19-21 yrs.) adolescence; then, at age 25, a representative subset of the sample completed magnetic resonance imaging (MRI) that assessed regional brain volumes. RESULTS Higher levels of substance use during early adolescence, but not middle or later adolescence, were significantly associated with smaller amygdalar volume in young adulthood. Higher levels of substance use during middle adolescence, but not early or later adolescence, were significantly associated with smaller pars opercularis volume. Substance use was not associated with the pars triangularis or ventral striatum. CONCLUSION These findings support age sensitive associations between substance use and smaller gray matter volumes at age 25 and are consistent with literature supporting the differential nature of substance use and brain maturation across adolescence and into young adulthood.
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14
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Abstract
A previous paper from our lab (Shalom, 2009) presented evidence that the medial part of the prefrontal cortex is involved in the integration of raw, unintegrated information into coherent, wholistic mental representations such as perceptual objects, episodic memories, emotional states, and motor actions. It has used this analysis to classify some challenges encountered by people with Autism Spectrum Disorders, linking different types of difficulties in integration with different subareas of the medial prefrontal cortex. The current paper performs a similar analysis for the corresponding subareas of the lateral prefrontal cortex. It presents evidence that the lateral part of the prefrontal cortex is involved in the selection/inhibition of perceptual, memory, emotion, and motor aspects of processing. It then uses this analysis to classify challenges encountered by people with ADHD, linking different types of difficulties in selection/inhibition to different subareas of the lateral prefrontal cortex.
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Affiliation(s)
- Ziv Ronel
- Hebrew University of Jerusalem, Jerusalem, Israel
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15
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Giordano J, Bikson M, Kappenman ES, Clark VP, Coslett HB, Hamblin MR, Hamilton R, Jankord R, Kozumbo WJ, McKinley RA, Nitsche MA, Reilly JP, Richardson J, Wurzman R, Calabrese E. Mechanisms and Effects of Transcranial Direct Current Stimulation. Dose Response 2017; 15:1559325816685467. [PMID: 28210202 PMCID: PMC5302097 DOI: 10.1177/1559325816685467] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The US Air Force Office of Scientific Research convened a meeting of researchers in the fields of neuroscience, psychology, engineering, and medicine to discuss most pressing issues facing ongoing research in the field of transcranial direct current stimulation (tDCS) and related techniques. In this study, we present opinions prepared by participants of the meeting, focusing on the most promising areas of research, immediate and future goals for the field, and the potential for hormesis theory to inform tDCS research. Scientific, medical, and ethical considerations support the ongoing testing of tDCS in healthy and clinical populations, provided best protocols are used to maximize safety. Notwithstanding the need for ongoing research, promising applications include enhancing vigilance/attention in healthy volunteers, which can accelerate training and support learning. Commonly, tDCS is used as an adjunct to training/rehabilitation tasks with the goal of leftward shift in the learning/treatment effect curves. Although trials are encouraging, elucidating the basic mechanisms of tDCS will accelerate validation and adoption. To this end, biomarkers (eg, clinical neuroimaging and findings from animal models) can support hypotheses linking neurobiological mechanisms and behavioral effects. Dosage can be optimized using computational models of current flow and understanding dose–response. Both biomarkers and dosimetry should guide individualized interventions with the goal of reducing variability. Insights from other applied energy domains, including ionizing radiation, transcranial magnetic stimulation, and low-level laser (light) therapy, can be prudently leveraged.
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Affiliation(s)
- James Giordano
- Department of Neurology and Biochemistry, Neuroethics Studies Program, Pellegrino Center for Clinical Bioethics, Georgetown University Medical Center, Washington, DC, USA
| | - Marom Bikson
- Biomedical Engineering, City College of New York, CUNY, New York, NY, USA
| | - Emily S Kappenman
- San Diego State University, Department of Psychology, San Diego, CA, USA
| | - Vincent P Clark
- Psychology Clinical Neuroscience Center, Department of Psychology, University of New Mexico, Albuquerque, NM, USA
| | - H Branch Coslett
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital and Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Roy Hamilton
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ryan Jankord
- United States Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | | | - R Andrew McKinley
- United States Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Michael A Nitsche
- Department Psychology and Neurosciences, Leibniz Research Center for Working Environmental and Human Factors, Dortmund, Germany
| | | | - Jessica Richardson
- Department of Speech and Hearing Sciences, University of New Mexico, Albuquerque, NM, USA
| | - Rachel Wurzman
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Edward Calabrese
- Environmental Health Sciences, University of Massachusetts, Amherst, MA, USA
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16
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Cortese S, Castellanos FX, Eickhoff CR, D’Acunto G, Masi G, Fox PT, Laird AR, Eickhoff SB. Functional Decoding and Meta-analytic Connectivity Modeling in Adult Attention-Deficit/Hyperactivity Disorder. Biol Psychiatry 2016; 80:896-904. [PMID: 27569542 PMCID: PMC5108674 DOI: 10.1016/j.biopsych.2016.06.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 05/22/2016] [Accepted: 06/14/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Task-based functional magnetic resonance imaging (fMRI) studies of adult attention-deficit/hyperactivity disorder (ADHD) have revealed various ADHD-related dysfunctional brain regions, with heterogeneous findings across studies. Here, we used novel meta-analytic data-driven approaches to characterize the function and connectivity profile of ADHD-related dysfunctional regions consistently detected across studies. METHODS We first conducted an activation likelihood estimation meta-analysis of 24 task-based fMRI studies in adults with ADHD. Each ADHD-related dysfunctional region resulting from the activation likelihood estimation meta-analysis was then analyzed using functional decoding based on ~7500 fMRI experiments in the BrainMap database. This approach allows mapping brain regions to functions not necessarily tested in individual studies, thus suggesting possible novel functions for those regions. Additionally, ADHD-related dysfunctional regions were clustered based on their functional coactivation profiles across all the experiments stored in BrainMap (meta-analytic connectivity modeling). RESULTS ADHD-related hypoactivation was found in the left putamen, left inferior frontal gyrus (pars opercularis), left temporal pole, and right caudate. Functional decoding mapped the left putamen to cognitive aspects of music perception/reproduction and the left temporal lobe to language semantics; both these regions clustered together on the basis of their meta-analytic functional connectivity. Left inferior gyrus mapped to executive function tasks; right caudate mapped to both executive function tasks and music-related processes. CONCLUSIONS Our study provides meta-analytic support to the hypothesis that, in addition to well-known deficits in typical executive functions, impairment in processes related to music perception/reproduction and language semantics may be involved in the pathophysiology of adult ADHD.
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Affiliation(s)
- Samuele Cortese
- Academic Unit of Psychology, Developmental Brain-Behaviour Laboratory, Southampton, United Kingdom; Clinical and Experimental Sciences (CNS and Psychiatry), Faculty of Medicine, University of Southampton, Southampton, United Kingdom; The Child Study Center, Hassenfeld Children's Hospital of New York, NYU Langone Medical Center, New York; IRCCS Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Calambrone, Italy.
| | - F. Xavier Castellanos
- The Child Study Center at NYU Langone Medical Center, New York, NY, USA,Nathan S. Kline Institute for Psychiatric Research, Orangeburg, New York, USA
| | - Claudia R. Eickhoff
- Institute of Neuroscience and Medicine (INM-1), Research Center Jülich GmbH, Jülich, Germany,Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - Giulia D’Acunto
- IRCCS Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Calambrone, Italy
| | - Gabriele Masi
- IRCCS Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Calambrone, Italy
| | - Peter T. Fox
- Research Imaging Institute, University of Texas Health Science Center, San Antonio, Texas, USA,Department of Radiology, University of Texas Health Science Center, San Antonio, TX, USA,South Texas Veterans Health Care System, San Antonio, TX, USA
| | - Angela R. Laird
- Department of Physics, Florida International University, Miami, FL, USA
| | - Simon B. Eickhoff
- Institute of Neuroscience and Medicine (INM-1), Research Center Jülich GmbH, Jülich, Germany,Institute of Clinical Neuroscience and Medical Psychology, Heinrich Heine University Duesseldorf, Duesseldorf, Germany
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17
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Roman-Urrestarazu A, Lindholm P, Moilanen I, Kiviniemi V, Miettunen J, Jääskeläinen E, Mäki P, Hurtig T, Ebeling H, Barnett JH, Nikkinen J, Suckling J, Jones PB, Veijola J, Murray GK. Brain structural deficits and working memory fMRI dysfunction in young adults who were diagnosed with ADHD in adolescence. Eur Child Adolesc Psychiatry 2016; 25:529-38. [PMID: 26307356 PMCID: PMC4854937 DOI: 10.1007/s00787-015-0755-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/21/2015] [Indexed: 11/25/2022]
Abstract
When adolescents with ADHD enter adulthood, some no longer meet disorder diagnostic criteria but it is unknown if biological and cognitive abnorma lities persist. We tested the hypothesis that people diagnosed with ADHD during adolescence present residual brain abnormalities both in brain structure and in working memory brain function. 83 young adults (aged 20-24 years) from the Northern Finland 1986 Birth Cohort were classified as diagnosed with ADHD in adolescence (adolescence ADHD, n = 49) or a control group (n = 34). Only one patient had received medication for ADHD. T1-weighted brain scans were acquired and processed in a voxel-based analysis using permutation-based statistics. A sub-sample of both groups (ADHD, n = 21; controls n = 23) also performed a Sternberg working memory task whilst acquiring fMRI data. Areas of structural difference were used as a region of interest to evaluate the implications that structural abnormalities found in the ADHD group might have on working memory function. There was lower grey matter volume bilaterally in adolescence ADHD participants in the caudate (p < 0.05 FWE corrected across the whole brain) at age 20-24. Working memory was poorer in adolescence ADHD participants, with associated failure to show normal load-dependent caudate activation. Young adults diagnosed with ADHD in adolescence have structural and functional deficits in the caudate associated with abnormal working memory function. These findings are not secondary to stimulant treatment, and emphasise the importance of taking a wider perspective on ADHD outcomes than simply whether or not a particular patient meets diagnostic criteria at any given point in time.
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Affiliation(s)
- Andres Roman-Urrestarazu
- Department of Psychiatry, University of Cambridge, Box 189 Addenbrooke’s Hospital, Cambridge, CB2 0QQ UK
| | - Päivi Lindholm
- Department of Child Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Irma Moilanen
- Department of Child Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Vesa Kiviniemi
- Department of Diagnostic Radiology, Institute of Diagnostics, Oulu University Hospital, Oulu, Finland
| | - Jouko Miettunen
- Department of Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland ,Department of Public Health Sciences and General Practice, Institute of Health Sciences, University of Oulu, Oulu, Finland ,Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Erika Jääskeläinen
- Department of Diagnostic Radiology, Institute of Diagnostics, Oulu University Hospital, Oulu, Finland
| | - Pirjo Mäki
- Department of Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Tuula Hurtig
- Department of Child Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland ,Department of Public Health Sciences and General Practice, Institute of Health Sciences, University of Oulu, Oulu, Finland
| | - Hanna Ebeling
- Department of Child Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Jennifer H. Barnett
- Department of Psychiatry, University of Cambridge, Box 189 Addenbrooke’s Hospital, Cambridge, CB2 0QQ UK
| | - Juha Nikkinen
- Department of Diagnostic Radiology, Institute of Diagnostics, Oulu University Hospital, Oulu, Finland ,Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland ,Department of Oncology and Radiotherapy, Oulu University Hospital, Oulu, Finland
| | - John Suckling
- Department of Psychiatry, University of Cambridge, Box 189 Addenbrooke’s Hospital, Cambridge, CB2 0QQ UK ,NIHR Cambridge Biomedical Research Centre, Cambridge, UK ,Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
| | - Peter B. Jones
- Department of Psychiatry, University of Cambridge, Box 189 Addenbrooke’s Hospital, Cambridge, CB2 0QQ UK ,NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - Juha Veijola
- Department of Psychiatry, Institute of Clinical Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Graham K. Murray
- Department of Psychiatry, University of Cambridge, Box 189 Addenbrooke’s Hospital, Cambridge, CB2 0QQ UK ,NIHR Cambridge Biomedical Research Centre, Cambridge, UK ,Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
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18
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van Rooij D, Hoekstra PJ, Bralten J, Hakobjan M, Oosterlaan J, Franke B, Rommelse N, Buitelaar JK, Hartman CA. Influence of DAT1 and COMT variants on neural activation during response inhibition in adolescents with attention-deficit/hyperactivity disorder and healthy controls. Psychol Med 2015; 45:3159-3170. [PMID: 26073896 DOI: 10.1017/s0033291715001130] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Impairment of response inhibition has been implicated in attention-deficit/hyperactivity disorder (ADHD). Dopamine neurotransmission has been linked to the behavioural and neural correlates of response inhibition. The current study aimed to investigate the relationship of polymorphisms in two dopamine-related genes, the catechol-O-methyltransferase gene (COMT) and the dopamine transporter gene (SLC6A3 or DAT1), with the neural and behavioural correlates of response inhibition. METHOD Behavioural and neural measures of response inhibition were obtained in 185 adolescents with ADHD, 111 of their unaffected siblings and 124 healthy controls (mean age 16.9 years). We investigated the association of DAT1 and COMT variants on task performance and whole-brain neural activation during response inhibition in a hypothesis-free manner. Additionally, we attempted to explain variance in previously found ADHD effects on neural activation during response inhibition using these DAT1 and COMT polymorphisms. RESULTS The whole-brain analyses demonstrated large-scale neural activation changes in the medial and lateral prefrontal, subcortical and parietal regions of the response inhibition network in relation to DAT1 and COMT polymorphisms. Although these neural activation changes were associated with different task performance measures, no relationship was found between DAT1 or COMT variants and ADHD, nor did variants in these genes explain variance in the effects of ADHD on neural activation. CONCLUSIONS These results suggest that dopamine-related genes play a role in the neurobiology of response inhibition. The limited associations between gene polymorphisms and task performance further indicate the added value of neural measures in linking genetic factors and behavioural measures.
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Affiliation(s)
- D van Rooij
- Department of Psychiatry,University of Groningen,University Medical Center Groningen,Groningen,The Netherlands
| | - P J Hoekstra
- Department of Psychiatry,University of Groningen,University Medical Center Groningen,Groningen,The Netherlands
| | - J Bralten
- Department of Cognitive Neuroscience,Radboud University Medical Center,Donders Institute for Brain,Cognition and Behaviour,Nijmegen,The Netherlands
| | - M Hakobjan
- Department of Human Genetics,Radboud University Medical Center,Donders Institute for Brain,Cognition and Behaviour,Nijmegen,The Netherlands
| | - J Oosterlaan
- Department of Neuropsychology,VU University Amsterdam,Amsterdam,The Netherlands
| | - B Franke
- Department of Human Genetics,Radboud University Medical Center,Donders Institute for Brain,Cognition and Behaviour,Nijmegen,The Netherlands
| | - N Rommelse
- Department of Psychiatry,Radboud University Medical Center,Donders Institute for Brain,Cognition and Behaviour,Nijmegen,The Netherlands
| | - J K Buitelaar
- Department of Cognitive Neuroscience,Radboud University Medical Center,Donders Institute for Brain,Cognition and Behaviour,Nijmegen,The Netherlands
| | - C A Hartman
- Department of Psychiatry,University of Groningen,University Medical Center Groningen,Groningen,The Netherlands
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19
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Hammer R, Cooke GE, Stein MA, Booth JR. Functional neuroimaging of visuospatial working memory tasks enables accurate detection of attention deficit and hyperactivity disorder. Neuroimage Clin 2015; 9:244-52. [PMID: 26509111 PMCID: PMC4576365 DOI: 10.1016/j.nicl.2015.08.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 08/21/2015] [Accepted: 08/25/2015] [Indexed: 01/30/2023]
Abstract
Finding neurobiological markers for neurodevelopmental disorders, such as attention deficit and hyperactivity disorder (ADHD), is a major objective of clinicians and neuroscientists. We examined if functional Magnetic Resonance Imaging (fMRI) data from a few distinct visuospatial working memory (VSWM) tasks enables accurately detecting cases with ADHD. We tested 20 boys with ADHD combined type and 20 typically developed (TD) boys in four VSWM tasks that differed in feedback availability (feedback, no-feedback) and reward size (large, small). We used a multimodal analysis based on brain activity in 16 regions of interest, significantly activated or deactivated in the four VSWM tasks (based on the entire participants' sample). Dimensionality of the data was reduced into 10 principal components that were used as the input variables to a logistic regression classifier. fMRI data from the four VSWM tasks enabled a classification accuracy of 92.5%, with high predicted ADHD probability values for most clinical cases, and low predicted ADHD probabilities for most TDs. This accuracy level was higher than those achieved by using the fMRI data of any single task, or the respective behavioral data. This indicates that task-based fMRI data acquired while participants perform a few distinct VSWM tasks enables improved detection of clinical cases.
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Affiliation(s)
- Rubi Hammer
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA ; Interdepartmental Neuroscience Program, Northwestern University, Evanston, IL, USA
| | - Gillian E Cooke
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA ; Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign, IL, USA
| | - Mark A Stein
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - James R Booth
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, USA ; Interdepartmental Neuroscience Program, Northwestern University, Evanston, IL, USA ; Department of Communication Sciences and Disorders, The University of Texas at Austin, Austin, TX, USA
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20
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Montojo CA, Congdon E, Hwang L, Jalbrzikowski M, Kushan L, Vesagas TK, Jonas RK, Ventura J, Bilder RM, Bearden CE. Neural mechanisms of response inhibition and impulsivity in 22q11.2 deletion carriers and idiopathic attention deficit hyperactivity disorder. Neuroimage Clin 2015; 9:310-21. [PMID: 26509118 PMCID: PMC4588418 DOI: 10.1016/j.nicl.2015.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/31/2015] [Accepted: 08/13/2015] [Indexed: 10/26/2022]
Abstract
•22q11DS offers a compelling model to understand the neural substrates of attentional dysfunction.•First study directly comparing neural function in 22q11DS vs. ADHD patients•22q11DS and ADHD patients show a shared deficit in RI-related activation.•ADHD patients showed greater activity in the middle frontal gyrus than 22q11DS during RI.•Neural activity is inversely correlated with self-reported Cognitive Impulsivity in 22q11DS.
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Affiliation(s)
- C A Montojo
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - E Congdon
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - L Hwang
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - M Jalbrzikowski
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - L Kushan
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - T K Vesagas
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - R K Jonas
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - J Ventura
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - R M Bilder
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
| | - C E Bearden
- University of California Los Angeles, Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA 90024, USA
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21
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van Rooij D, Hoekstra PJ, Mennes M, von Rhein D, Thissen AJ, Heslenfeld D, Zwiers MP, Faraone SV, Oosterlaan J, Franke B, Rommelse N, Buitelaar JK, Hartman CA. Distinguishing Adolescents With ADHD From Their Unaffected Siblings and Healthy Comparison Subjects by Neural Activation Patterns During Response Inhibition. Am J Psychiatry 2015; 172:674-83. [PMID: 25615565 PMCID: PMC4490085 DOI: 10.1176/appi.ajp.2014.13121635] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Dysfunctional response inhibition is a key executive function impairment in attention deficit hyperactivity disorder (ADHD). Still, behavioral response inhibition measures do not consistently differentiate affected from unaffected individuals. The authors therefore investigated neural correlates of response inhibition and the familial nature of these neural correlates. METHODS Functional MRI measurements of neural activation during the stop-signal task and behavioral measures of response inhibition were obtained in adolescents and young adults with ADHD (N=185), their unaffected siblings (N=111), and healthy comparison subjects (N=124). RESULTS Stop-signal task reaction times were longer and error rates were higher in participants with ADHD, but not in their unaffected siblings, while reaction time variability was higher in both groups than in comparison subjects. Relative to comparison subjects, participants with ADHD and unaffected siblings had neural hypoactivation in frontal-striatal and frontal-parietal networks, whereby activation in inferior frontal and temporal/parietal nodes in unaffected siblings was intermediate between levels of participants with ADHD and comparison subjects. Furthermore, neural activation in inferior frontal nodes correlated with stop-signal reaction times, and activation in both inferior frontal and temporal/parietal nodes correlated with ADHD severity. CONCLUSIONS Neural activation alterations in ADHD are more robust than behavioral response inhibition deficits and explain variance in response inhibition and ADHD severity. Although only affected participants with ADHD have deficient response inhibition, hypoactivation in inferior frontal and temporal-parietal nodes in unaffected siblings supports the familial nature of the underlying neural process. Activation deficits in these nodes may be useful as endophenotypes that extend beyond the affected individuals in the family.
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Affiliation(s)
- Daan van Rooij
- University of Groningen, University Medical Center Groningen, Department of Psychiatry, Groningen, The Netherlands,Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands
| | - Pieter J. Hoekstra
- University of Groningen, University Medical Center Groningen, Department of Psychiatry, Groningen, The Netherlands
| | - Maarten Mennes
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands,Radboud University Nijmegen Medical Center, Donders Institute for Brain, Cognition and Behavior, Department of Cognitive Neuroscience, Nijmegen, The Netherlands
| | - Daniel von Rhein
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands
| | - Andrieke J.A.M. Thissen
- Radboud University Nijmegen Medical Center, Donders Institute for Brain, Cognition and Behavior, Department of Psychiatry, Nijmegen, The Netherlands,Karakter Child and Adolescent Psychiatry University Center Nijmegen, Nijmegen, The Netherlands
| | - Dirk Heslenfeld
- VU University Amsterdam, Department of Psychology, Amsterdam, The Netherlands
| | - Marcel P. Zwiers
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, Nijmegen, The Netherlands
| | - Stephen V. Faraone
- SUNY Upstate Medical University, Departments of Psychiatry and of Neuroscience and Physiology, Syracuse, USA
| | - Jaap Oosterlaan
- VU University Amsterdam, Department of Psychology, Amsterdam, The Netherlands
| | - Barbara Franke
- Radboud University Nijmegen Medical Center, Donders Institute for Brain, Cognition and Behavior, Human Genetics Department, Nijmegen, The Netherlands
| | - Nanda Rommelse
- Karakter Child and Adolescent Psychiatry University Center Nijmegen, Nijmegen, The Netherlands
| | - Jan K. Buitelaar
- Radboud University Nijmegen Medical Center, Donders Institute for Brain, Cognition and Behavior, Department of Cognitive Neuroscience, Nijmegen, The Netherlands,Karakter Child and Adolescent Psychiatry University Center Nijmegen, Nijmegen, The Netherlands
| | - Catharina A. Hartman
- University of Groningen, University Medical Center Groningen, Department of Psychiatry, Groningen, The Netherlands
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Chevrier A, Cheyne D, Graham S, Schachar R. Dissociating Two Stages of Preparation in the Stop Signal Task Using fMRI. PLoS One 2015; 10:e0130992. [PMID: 26110429 PMCID: PMC4481508 DOI: 10.1371/journal.pone.0130992] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 05/27/2015] [Indexed: 12/04/2022] Open
Abstract
Often we must balance being prepared to act quickly with being prepared to suddenly stop. The stop signal task (SST) is widely used to study inhibitory control, and provides a measure of the speed of the stop process that is robust to changes in subjects' response strategy. Previous studies have shown that preparation affects inhibition. We used fMRI to separate activity that occurs after a brief (500 ms) warning stimulus (warning-phase) from activity that occurs during responses that follow (response-phase). Both of these phases could contribute to the preparedness to stop because they both precede stop signals. Warning stimuli activated posterior networks that signal the need for top-down control, whereas response phases engaged prefrontal and subcortical networks that implement top-down control. Regression analyses revealed that both of these phases affect inhibitory control in different ways. Warning-phase activity in the cerebellum and posterior cingulate predicted stop latency and accuracy, respectively. By contrast, response-phase activity in fronto-temporal areas and left striatum predicted go speed and stop accuracy, in pre-supplementary motor area affected stop accuracy, and in right striatum predicted stop latency and accuracy. The ability to separate hidden contributions to inhibitory control during warning-phases from those during response-phases can aid in the study of models of preparation and inhibitory control, and of disorders marked by poor top-down control.
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Affiliation(s)
- Andre Chevrier
- University of Toronto, Institute of Medical Science. Toronto, Ontario, Canada
| | - Douglas Cheyne
- University of Toronto, Institute of Biomaterials and Biomedical EngineeringDepartment of Medical Imaging, Toronto, Ontario, Canada
| | - Simon Graham
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Russell Schachar
- The Hospital for Sick Children, Psychiatry research, Toronto, Ontario Canada
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Hammer R, Tennekoon M, Cooke GE, Gayda J, Stein MA, Booth JR. Feedback associated with expectation for larger-reward improves visuospatial working memory performances in children with ADHD. Dev Cogn Neurosci 2015; 14:38-49. [PMID: 26142072 PMCID: PMC4536089 DOI: 10.1016/j.dcn.2015.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 06/08/2015] [Accepted: 06/16/2015] [Indexed: 01/05/2023] Open
Abstract
Children with ADHD and normal controls were tested in working memory tasks. Availability of feedback and expectation for monetary reward were manipulated. ADHDs showed improved working memory when feedback was associated with larger-reward. Performance improvement in ADHD was associated with brain activity normalization.
We tested the interactive effect of feedback and reward on visuospatial working memory in children with ADHD. Seventeen boys with ADHD and 17 Normal Control (NC) boys underwent functional magnetic resonance imaging (fMRI) while performing four visuospatial 2-back tasks that required monitoring the spatial location of letters presented on a display. Tasks varied in reward size (large; small) and feedback availability (no-feedback; feedback). While the performance of NC boys was high in all conditions, boys with ADHD exhibited higher performance (similar to those of NC boys) only when they received feedback associated with large-reward. Performance pattern in both groups was mirrored by neural activity in an executive function neural network comprised of few distinct frontal brain regions. Specifically, neural activity in the left and right middle frontal gyri of boys with ADHD became normal-like only when feedback was available, mainly when feedback was associated with large-reward. When feedback was associated with small-reward, or when large-reward was expected but feedback was not available, boys with ADHD exhibited altered neural activity in the medial orbitofrontal cortex and anterior insula. This suggests that contextual support normalizes activity in executive brain regions in children with ADHD, which results in improved working memory.
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Affiliation(s)
- Rubi Hammer
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States; Interdepartmental Neuroscience Program, Northwestern University, Evanston, IL, United States.
| | - Michael Tennekoon
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States; Interdepartmental Neuroscience Program, Northwestern University, Evanston, IL, United States
| | - Gillian E Cooke
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States; Beckman Institute for Advanced Science, University of Illinois, Urbana-Champaign, IL, United States
| | - Jessica Gayda
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States
| | - Mark A Stein
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, United States
| | - James R Booth
- Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States; Interdepartmental Neuroscience Program, Northwestern University, Evanston, IL, United States; Department of Communication Sciences and Disorders, The University of Texas at Austin, Austin, TX, United States
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24
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van Rooij D, Hartman CA, Mennes M, Oosterlaan J, Franke B, Rommelse N, Heslenfeld D, Faraone SV, Buitelaar JK, Hoekstra PJ. Altered neural connectivity during response inhibition in adolescents with attention-deficit/hyperactivity disorder and their unaffected siblings. Neuroimage Clin 2015; 7:325-35. [PMID: 25610797 PMCID: PMC4297885 DOI: 10.1016/j.nicl.2015.01.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/06/2015] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Response inhibition is one of the executive functions impaired in attention-deficit/hyperactivity disorder (ADHD). Increasing evidence indicates that altered functional and structural neural connectivity are part of the neurobiological basis of ADHD. Here, we investigated if adolescents with ADHD show altered functional connectivity during response inhibition compared to their unaffected siblings and healthy controls. METHODS Response inhibition was assessed using the stop signal paradigm. Functional connectivity was assessed using psycho-physiological interaction analyses applied to BOLD time courses from seed regions within inferior- and superior frontal nodes of the response inhibition network. Resulting networks were compared between adolescents with ADHD (N = 185), their unaffected siblings (N = 111), and controls (N = 125). RESULTS Control subjects showed stronger functional connectivity than the other two groups within the response inhibition network, while subjects with ADHD showed relatively stronger connectivity between default mode network (DMN) nodes. Stronger connectivity within the response inhibition network was correlated with lower ADHD severity, while stronger connectivity with the DMN was correlated with increased ADHD severity. Siblings showed connectivity patterns similar to controls during successful inhibition and to ADHD subjects during failed inhibition. Additionally, siblings showed decreased connectivity with the primary motor areas as compared to both participants with ADHD and controls. DISCUSSION Subjects with ADHD fail to integrate activation within the response inhibition network and to inhibit connectivity with task-irrelevant regions. Unaffected siblings show similar alterations only during failed stop trials, as well as unique suppression of motor areas, suggesting compensatory strategies. These findings support the role of altered functional connectivity in understanding the neurobiology and familial transmission of ADHD.
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Key Words
- ADHD
- ADHD, attention deficit/hyperactivity disorder
- CD, conduct disorder
- Connectivity
- DMN, default mode network
- GEE, generalized estimating equations
- ICV, intraindividual coefficient of variance
- ODD, oppositional defiant disorder
- PPI
- RD, reading disorder
- ROI, region of interest
- Response inhibition
- SI, supplementary information
- SSRT, stop-signal reaction time
- SST, Stop-signal task
- Siblings
- WM, white matter
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Affiliation(s)
- Daan van Rooij
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Centre for Cognitive Neuroimaging, Donders Institute for Brain Cognition and Behavior, Nijmegen, The Netherlands
| | - Catharina A. Hartman
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Maarten Mennes
- Centre for Cognitive Neuroimaging, Donders Institute for Brain Cognition and Behavior, Nijmegen, The Netherlands
| | - Jaap Oosterlaan
- Department of Psychology, VU University Amsterdam, Amsterdam, The Netherlands
| | - Barbara Franke
- Departments of Human Genetics and Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nanda Rommelse
- Karakter Child and Adolescent Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Dirk Heslenfeld
- Department of Psychology, VU University Amsterdam, Amsterdam, The Netherlands
| | - Stephen V. Faraone
- Departments of Psychiatry and of Neuroscience and Physiology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Jan K. Buitelaar
- Karakter Child and Adolescent Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Radboud University Medical Center, Donders Institute for Brain Cognition and Behavior, Nijmegen, The Netherlands
| | - Pieter J. Hoekstra
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Poblano A, Luna B, Reynoso C. Differential motor alterations in children with three types of attention deficit hyperactivity disorder. ARQUIVOS DE NEURO-PSIQUIATRIA 2014; 72:856-61. [DOI: 10.1590/0004-282x20140147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 08/07/2014] [Indexed: 11/21/2022]
Abstract
Objective To determine frequency of motor alterations in children with attention deficit hyperactivity disorder (ADHD). Method We evaluated 19 children aged 7-12 years with ADHD classified in three sub-types: Combined (ADHD-C), with Inattention (ADHD-I), and with Hyperactivity (ADHD-H). Controls were age- and gender matched healthy children. We utilized Bruininks-Oseretsky Test of Motor Proficiency (BOTMP) for measuring motor skills. Results We observed differences between children with ADHD and controls in BOTMP general score and in static coordination, dynamic general- and hand- coordination, and in synkinetic movements. We also found differences in dynamic hand coordination between controls and children with ADHD-C; in dynamic general coordination between controls and children with ADHD-H; and in frequency of synkinetic movements between controls and children with ADHD-H. Conclusion Children with ADHD with a major degree of hyperactivity showed greater frequency of motor alterations.
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Nagashima M, Monden Y, Dan I, Dan H, Tsuzuki D, Mizutani T, Kyutoku Y, Gunji Y, Hirano D, Taniguchi T, Shimoizumi H, Momoi MY, Watanabe E, Yamagata T. Acute neuropharmacological effects of atomoxetine on inhibitory control in ADHD children: a fNIRS study. NEUROIMAGE-CLINICAL 2014; 6:192-201. [PMID: 25379431 PMCID: PMC4215398 DOI: 10.1016/j.nicl.2014.09.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 09/02/2014] [Accepted: 09/03/2014] [Indexed: 11/28/2022]
Abstract
The object of the current study is to explore the neural substrate for effects of atomoxetine (ATX) on inhibitory control in school-aged children with attention deficit hyperactivity disorder (ADHD) using functional near-infrared spectroscopy (fNIRS). We monitored the oxy-hemoglobin signal changes of sixteen ADHD children (6–14 years old) performing a go/no-go task before and 1.5 h after ATX or placebo administration, in a randomized, double-blind, placebo-controlled, crossover design. Sixteen age- and gender-matched normal controls without ATX administration were also monitored. In the control subjects, the go/no-go task recruited the right inferior and middle prefrontal gyri (IFG/MFG), and this activation was absent in pre-medicated ADHD children. The reduction of right IFG/MFG activation was acutely normalized after ATX administration but not placebo administration in ADHD children. These results are reminiscent of the neuropharmacological effects of methylphenidate to up-regulate reduced right IFG/MFG function in ADHD children during inhibitory tasks. As with methylphenidate, activation in the IFG/MFG could serve as an objective neuro-functional biomarker to indicate the effects of ATX on inhibitory control in ADHD children. This promising technique will enhance early clinical diagnosis and treatment of ADHD in children, especially in those with a hyperactivity/impulsivity phenotype. We assessed the effects of atomoxetine administration to ADHD children using fNIRS. Normal healthy control subjects recruited the right IFG/MFG during go/no-go tasks. Pre-medicated ADHD children exhibited reduced right IFG/MFG activation. The activation was acutely normalized by atomoxetine, but not by placebo. The right IFG/MFG activation may serve as an objective neuro-functional biomarker.
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Affiliation(s)
| | | | - Ippeita Dan
- Department of Neurosurgery, Shimotsuke, Japan ; Applied Cognitive Neuroscience Laboratory, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551, Japan
| | - Haruka Dan
- Department of Neurosurgery, Shimotsuke, Japan
| | - Daisuke Tsuzuki
- Applied Cognitive Neuroscience Laboratory, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551, Japan
| | - Tsutomu Mizutani
- Department of Pediatrics, Shimotsuke, Japan ; Functional Brain Science Laboratory, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Yasushi Kyutoku
- Applied Cognitive Neuroscience Laboratory, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551, Japan
| | - Yuji Gunji
- Department of Pediatrics, Shimotsuke, Japan ; Department of Pediatrics, International University of Health and Welfare, 537-3 Iguchi, Nasushiobara, Tochigi 329-2763, Japan
| | - Daisuke Hirano
- International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara, Tochigi, Japan
| | - Takamichi Taniguchi
- International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara, Tochigi, Japan
| | - Hideo Shimoizumi
- Rehabilitation Center, International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara, Tochigi 324-8501, Japan
| | - Mariko Y Momoi
- Department of Pediatrics, Shimotsuke, Japan ; International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara, Tochigi, Japan
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Mulligan RC, Kristjansson SD, Reiersen AM, Parra AS, Anokhin AP. Neural correlates of inhibitory control and functional genetic variation in the dopamine D4 receptor gene. Neuropsychologia 2014; 62:306-18. [PMID: 25107677 DOI: 10.1016/j.neuropsychologia.2014.07.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 07/25/2014] [Accepted: 07/29/2014] [Indexed: 12/23/2022]
Abstract
BACKGROUND The dopamine D4 receptor gene (DRD4) has been implicated in psychiatric disorders in which deficits of self-regulation are a prominent feature (e.g., attention-deficit hyperactivity disorder and substance use disorders) and in dopamine D4 receptor insensitivity within prefrontal regions of the brain. Our hypothesis was that carriers of 7-repeats in the Variable Number of Tandem Repeats (VNTR) of DRD4 (7R+) would recruit prefrontal brain regions involved in successful inhibitory control to a lesser degree than non-carriers (7R-) and demonstrate less inhibitory control as confirmed by observation of locally reduced blood oxygenation level dependent (BOLD) % signal change and lower accuracy while performing "No-Go" trials of a Go/No-Go task. METHODS Participants (age=18, n=62, 33 females) were recruited from the general population of the St. Louis, Missouri region. Participants provided a blood or saliva sample for genotyping, completed drug and alcohol-related questionnaires and IQ testing, and performed a Go/No-Go task inside of a 3T fMRI scanner. RESULTS Go/No-Go task performance did not significantly differ between 7R+ and 7R- groups. Contrast of brain activity during correct "No-Go" trials with a non-target letter baseline revealed significant BOLD activation in a network of brain regions previously implicated in inhibitory control including bilateral dorsolateral prefrontal, inferior frontal, middle frontal, medial prefrontal, subcortical, parietal/temporal, and occipital/cerebellar brain regions. Mean BOLD % signal change during "No-Go" trials was significantly modulated by DRD4 genotype, with 7R+ showing a lower hemodynamic response than 7R- in right anterior prefrontal cortex/inferior frontal gyrus, left premotor cortex, and right occipital/cerebellar areas. Follow-up analyses suggested that 7-repeat status accounted for approximately 5-6% of the variance in the BOLD response during "No-Go" trials. DISCUSSION The DRD4 7-repeat allele may alter dopaminergic function in brain regions involved in inhibitory control. When individuals must inhibit a prepotent motor response, presence of this allele may account for 5-6% of the variance in BOLD signal in brain regions critically associated with inhibitory control, but its influence may be associated with a greater effect on brain than on behavior in 18-year-olds from the general population.
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Affiliation(s)
- Richard C Mulligan
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA.
| | - Sean D Kristjansson
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA; Pason Systems Corporation, Calgary, Alberta, Canada
| | - Angela M Reiersen
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
| | - Andres S Parra
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
| | - Andrey P Anokhin
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
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Berryhill ME, Peterson DJ, Jones KT, Stephens JA. Hits and misses: leveraging tDCS to advance cognitive research. Front Psychol 2014; 5:800. [PMID: 25120513 PMCID: PMC4111100 DOI: 10.3389/fpsyg.2014.00800] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 07/07/2014] [Indexed: 12/14/2022] Open
Abstract
The popularity of non-invasive brain stimulation techniques in basic, commercial, and applied settings grew tremendously over the last decade. Here, we focus on one popular neurostimulation method: transcranial direct current stimulation (tDCS). Many assumptions regarding the outcomes of tDCS are based on the results of stimulating motor cortex. For instance, the primary motor cortex is predictably suppressed by cathodal tDCS or made more excitable by anodal tDCS. However, wide-ranging studies testing cognition provide more complex and sometimes paradoxical results that challenge this heuristic. Here, we first summarize successful efforts in applying tDCS to cognitive questions, with a focus on working memory (WM). These recent findings indicate that tDCS can result in cognitive task improvement or impairment regardless of stimulation site or direction of current flow. We then report WM and response inhibition studies that failed to replicate and/or extend previously reported effects. From these opposing outcomes, we present a series of factors to consider that are intended to facilitate future use of tDCS when applied to cognitive questions. In short, common pitfalls include testing too few participants, using insufficiently challenging tasks, using heterogeneous participant populations, and including poorly motivated participants. Furthermore, the poorly understood underlying mechanism for long-lasting tDCS effects make it likely that other important factors predict responses. In conclusion, we argue that although tDCS can be used experimentally to understand brain function its greatest potential may be in applied or translational research.
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Affiliation(s)
- Marian E Berryhill
- Program in Cognitive and Brain Sciences, Department of Psychology, University of Nevada Reno, NV, USA
| | - Dwight J Peterson
- Program in Cognitive and Brain Sciences, Department of Psychology, University of Nevada Reno, NV, USA
| | - Kevin T Jones
- Program in Cognitive and Brain Sciences, Department of Psychology, University of Nevada Reno, NV, USA
| | - Jaclyn A Stephens
- Program in Cognitive and Brain Sciences, Department of Psychology, University of Nevada Reno, NV, USA
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van Velzen LS, Vriend C, de Wit SJ, van den Heuvel OA. Response inhibition and interference control in obsessive-compulsive spectrum disorders. Front Hum Neurosci 2014; 8:419. [PMID: 24966828 PMCID: PMC4052433 DOI: 10.3389/fnhum.2014.00419] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 05/24/2014] [Indexed: 12/30/2022] Open
Abstract
Over the past 20 years, motor response inhibition and interference control have received considerable scientific effort and attention, due to their important role in behavior and the development of neuropsychiatric disorders. Results of neuroimaging studies indicate that motor response inhibition and interference control are dependent on cortical–striatal–thalamic–cortical (CSTC) circuits. Structural and functional abnormalities within the CSTC circuits have been reported for many neuropsychiatric disorders, including obsessive–compulsive disorder (OCD) and related disorders, such as attention-deficit hyperactivity disorder, Tourette’s syndrome, and trichotillomania. These disorders also share impairments in motor response inhibition and interference control, which may underlie some of their behavioral and cognitive symptoms. Results of task-related neuroimaging studies on inhibitory functions in these disorders show that impaired task performance is related to altered recruitment of the CSTC circuits. Previous research has shown that inhibitory performance is dependent upon dopamine, noradrenaline, and serotonin signaling, neurotransmitters that have been implicated in the pathophysiology of these disorders. In this narrative review, we discuss the common and disorder-specific pathophysiological mechanisms of inhibition-related dysfunction in OCD and related disorders.
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Affiliation(s)
- Laura S van Velzen
- GGZ InGeest , Amsterdam , Netherlands ; Neuroscience Campus Amsterdam (NCA) , Amsterdam , Netherlands
| | - Chris Vriend
- GGZ InGeest , Amsterdam , Netherlands ; Neuroscience Campus Amsterdam (NCA) , Amsterdam , Netherlands ; Department of Psychiatry, VU University Medical Center , Amsterdam , Netherlands ; Department of Anatomy and Neurosciences, VU University Medical Center , Amsterdam , Netherlands
| | - Stella J de Wit
- GGZ InGeest , Amsterdam , Netherlands ; Neuroscience Campus Amsterdam (NCA) , Amsterdam , Netherlands ; Department of Psychiatry, VU University Medical Center , Amsterdam , Netherlands
| | - Odile A van den Heuvel
- Neuroscience Campus Amsterdam (NCA) , Amsterdam , Netherlands ; Department of Psychiatry, VU University Medical Center , Amsterdam , Netherlands ; Department of Anatomy and Neurosciences, VU University Medical Center , Amsterdam , Netherlands
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Morein‐Zamir S, Dodds C, van Hartevelt TJ, Schwarzkopf W, Sahakian B, Müller U, Robbins T. Hypoactivation in right inferior frontal cortex is specifically associated with motor response inhibition in adult ADHD. Hum Brain Mapp 2014; 35:5141-52. [PMID: 24819224 PMCID: PMC4336557 DOI: 10.1002/hbm.22539] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 03/31/2014] [Accepted: 04/21/2014] [Indexed: 02/02/2023] Open
Abstract
Adult ADHD has been linked to impaired motor response inhibition and reduced associated activation in the right inferior frontal cortex (IFC). However, it is unclear whether abnormal inferior frontal activation in adult ADHD is specifically related to a response inhibition deficit or reflects a more general deficit in attentional processing. Using functional magnetic resonance imaging, we tested a group of 19 ADHD patients with no comorbidities and a group of 19 healthy control volunteers on a modified go/no-go task that has been shown previously to distinguish between cortical responses related to response inhibition and attentional shifting. Relative to the healthy controls, ADHD patients showed increased commission errors and reduced activation in inferior frontal cortex during response inhibition. Crucially, this reduced activation was observed when controlling for attentional processing, suggesting that hypoactivation in right IFC in ADHD is specifically related to impaired response inhibition. The results are consistent with the notion of a selective neurocognitive deficit in response inhibition in adult ADHD associated with abnormal functional activation in the prefrontal cortex, whilst ruling out likely group differences in attentional orienting, arousal and motivation.
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Affiliation(s)
- Sharon Morein‐Zamir
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychiatryUniversity of CambridgeCambridgeUnited Kingdom
| | - Chris Dodds
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychologyUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychologyUniversity of ExeterDevonUnited Kingdom
| | - Tim J. van Hartevelt
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychiatryUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychiatryUniversity of OxfordOxfordUnited Kingdom
| | - Wolfgang Schwarzkopf
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychiatryUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychologyLudwig‐Maximilians‐UniversityGermany
| | - Barbara Sahakian
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychiatryUniversity of CambridgeCambridgeUnited Kingdom
| | - Ulrich Müller
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychiatryUniversity of CambridgeCambridgeUnited Kingdom,Adult ADHD ServiceCambridgeshire & Peterborough NHS Foundation Trust
| | - Trevor Robbins
- Behavioural and Clinical Neuroscience InstituteUniversity of CambridgeCambridgeUnited Kingdom,Department of PsychologyUniversity of CambridgeCambridgeUnited Kingdom
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Congdon E, Altshuler LL, Mumford JA, Karlsgodt KH, Sabb FW, Ventura J, McGough JJ, London ED, Cannon TD, Bilder RM, Poldrack RA. Neural activation during response inhibition in adult attention-deficit/hyperactivity disorder: preliminary findings on the effects of medication and symptom severity. Psychiatry Res 2014; 222:17-28. [PMID: 24581734 PMCID: PMC4009011 DOI: 10.1016/j.pscychresns.2014.02.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 01/06/2014] [Accepted: 02/06/2014] [Indexed: 11/15/2022]
Abstract
Studies of adults with attention-deficit/hyperactivity disorder (ADHD) have suggested that they have deficient response inhibition, but findings concerning the neural correlates of inhibition in this patient population are inconsistent. We used the Stop-Signal task and functional magnetic resonance imaging (fMRI) to compare neural activation associated with response inhibition between adults with ADHD (N=35) and healthy comparison subjects (N=62), and in follow-up tests to examine the effect of current medication use and symptom severity. There were no differences in Stop-Signal task performance or neural activation between ADHD and control participants. Among the ADHD participants, however, significant differences were associated with current medication, with individuals taking psychostimulants (N=25) showing less stopping-related activation than those not currently receiving psychostimulant medication (N=10). Follow-up analyses suggested that this difference in activation was independent of symptom severity. These results provide evidence that deficits in inhibition-related neural activation persist in a subset of adult ADHD individuals, namely those individuals currently taking psychostimulants. These findings help to explain some of the disparities in the literature, and advance our understanding of why deficits in response inhibition are more variable in adult, as compared with child and adolescent, ADHD patients.
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Affiliation(s)
- Eliza Congdon
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA.
| | - Lori L. Altshuler
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | | | | | - Fred W. Sabb
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Joseph Ventura
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - James J. McGough
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Edythe D. London
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
,Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, CA, USA
| | | | - Robert M. Bilder
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
,Department of Psychology, University of California Los Angeles, Los Angeles, CA, USA
| | - Russell A. Poldrack
- Department of Psychology, University of Texas at Austin, Austin, TX, USA
,Department of Neurobiology and Imaging Research Center, University of Texas at Austin, Austin, TX, USA
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Farr OM, Hu S, Matuskey D, Zhang S, Abdelghany O, Li CSR. The effects of methylphenidate on cerebral activations to salient stimuli in healthy adults. Exp Clin Psychopharmacol 2014; 22:154-65. [PMID: 24188171 PMCID: PMC4105943 DOI: 10.1037/a0034465] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Detection of a salient stimulus is critical to cognitive functioning. A stimulus is salient when it appears infrequently, carries high motivational value, and/or when it dictates changes in behavior. Individuals with neurological conditions that implicate altered catecholaminergic signaling, such as those with attention deficit hyperactivity disorder, are impaired in detecting salient stimuli, a deficit that can be remediated by catecholaminergic medications. However, the effects of these catecholaminergic agents on cerebral activities during saliency processing within the context of the stop-signal task are not clear. Here, we examined the effects of a single oral dose (45 mg) of methylphenidate in 24 healthy adults performing the stop-signal task during functional MRI (fMRI). Compared to 92 demographically matched adults who did not receive any medications, the methylphenidate group showed higher activations in bilateral caudate head, primary motor cortex, and the right inferior parietal cortex during stop as compared to go trials (p < .05, corrected for family-wise error of multiple comparisons). These results show that methylphenidate enhances saliency processing by promoting specific cerebral regional activities. These findings may suggest a neural basis for catecholaminergic treatment of attention disorders.
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Affiliation(s)
- Olivia M. Farr
- Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT 06520
| | - Sien Hu
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519
| | - David Matuskey
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519
| | - Sheng Zhang
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519
| | - Osama Abdelghany
- Investigational Drug Service, Yale New Haven Hospital, New Haven, CT 06519
| | - Chiang-shan R. Li
- Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT 06520,Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519,Department of Neurobiology, Yale University School of Medicine, New Haven, CT 06520
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McCarthy H, Skokauskas N, Frodl T. Identifying a consistent pattern of neural function in attention deficit hyperactivity disorder: a meta-analysis. Psychol Med 2014; 44:869-880. [PMID: 23663382 DOI: 10.1017/s0033291713001037] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The neurobiological underpinnings of attention deficit hyperactivity disorder (ADHD) are inconclusive. Activation abnormalities across brain regions in ADHD compared with healthy controls highlighted in task-based functional magnetic resonance imaging (fMRI) studies are heterogeneous. To identify a consistent pattern of neural dysfunction in ADHD, a meta-analysis of fMRI studies using Go/no-go, Stop and N-back tasks was undertaken. METHOD Several databases were searched using the key words: 'ADHD and fMRI' and 'ADHD and fMRI task'. In all, 20 studies met inclusion criteria comprising 334 patients with ADHD and 372 healthy controls and were split into N-back, Stop task and Go/no-go case-control groups. Using Signed Differential Mapping each batch was meta-analysed individually and meta-regression analyses were used to examine the effects of exposure to methylphenidate (MPH), length of MPH wash-out period, ADHD subtype, age and intelligence quotient (IQ) differences upon neural dysfunction in ADHD. RESULTS Across all tasks less activity in frontal lobe regions compared with controls was detected. Less exposure to treatment and lengthier wash-out times resulted in less left medial frontal cortex activation in N-back and Go/no-go studies. Higher percentage of combined-type ADHD resulted in less superior and inferior frontal gyrus activation. Different IQ scores between groups were linked to reduced right caudate activity in ADHD. CONCLUSIONS Consistent frontal deficits imply homogeneous cognitive strategies involved in ADHD behavioural control. Our findings suggest a link between fMRI results and the potentially normalizing effect of treatment and signify a need for segregated examination and contrast of differences in sample characteristics in future studies.
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Affiliation(s)
- H McCarthy
- Department of Psychiatry, Integrated Neuroimaging, Trinity College Dublin, Dublin, Republic of Ireland
| | - N Skokauskas
- Department of Psychiatry, Integrated Neuroimaging, Trinity College Dublin, Dublin, Republic of Ireland
| | - T Frodl
- Department of Psychiatry, Integrated Neuroimaging, Trinity College Dublin, Dublin, Republic of Ireland
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Woltering S, Liu Z, Rokeach A, Tannock R. Neurophysiological differences in inhibitory control between adults with ADHD and their peers. Neuropsychologia 2013; 51:1888-95. [DOI: 10.1016/j.neuropsychologia.2013.06.023] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 06/21/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
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Karch S, Segmiller F, Hantschk I, Cerovecki A, Opgen-Rhein M, Hock B, Dargel S, Leicht G, Hennig-Fast K, Riedel M, Pogarell O. Increased γ oscillations during voluntary selection processes in adult patients with attention deficit/hyperactivity disorder. J Psychiatr Res 2012; 46:1515-23. [PMID: 22921861 DOI: 10.1016/j.jpsychires.2012.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 06/01/2012] [Accepted: 07/25/2012] [Indexed: 01/06/2023]
Abstract
Executive dysfunctions (regarding behavioural inhibition, decision making, flexibility or voluntary selection) rank among the core symptoms of attention deficit/hyperactivity disorder. Several studies demonstrated functional variations in patients with ADHD especially during response inhibition and flexibility. However, information about functional correlates of other aspects of executive functions such as voluntary selection processes is limited. A group of thirty adult patients with attention deficit/hyperactivity disorder (ADHD) and 30 healthy controls, matched for age and education, participated in the present study. Electrophysiological responses (event-related potentials, gamma oscillations) and behavioural data were acquired during the voluntary selection between various response alternatives. ADHD patients demonstrated increased responses in the gamma frequency band especially in frontal and fronto-central brain areas during voluntary response selection processes compared to healthy subjects. In addition, the error rate was increased in patients. Given that gamma-band responses have been related to GABAergic and glutamatergic responses these results may indicate accordant dysfunction in patients with ADHD.
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Affiliation(s)
- Susanne Karch
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University Munich, Nussbaumstrasse 7, 80336 Munich, Germany.
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Right prefrontal activation as a neuro-functional biomarker for monitoring acute effects of methylphenidate in ADHD children: An fNIRS study. NEUROIMAGE-CLINICAL 2012; 1:131-40. [PMID: 24179746 PMCID: PMC3757725 DOI: 10.1016/j.nicl.2012.10.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 10/01/2012] [Accepted: 10/03/2012] [Indexed: 12/04/2022]
Abstract
An objective biomarker is a compelling need for the early diagnosis of attention deficit hyperactivity disorder (ADHD), as well as for the monitoring of pharmacological treatment effectiveness. The advent of fNIRS, which is relatively robust to the body movements of ADHD children, raised the possibility of introducing functional neuroimaging diagnosis in younger ADHD children. Using fNIRS, we monitored the oxy-hemoglobin signal changes of 16 ADHD children (6 to 13 years old) performing a go/no-go task before and 1.5 h after MPH or placebo administration, in a randomized, double-blind, placebo-controlled, crossover design. 16 age- and gender-matched normal controls without MPH administration were also monitored. Relative to control subjects, unmedicated ADHD children exhibited reduced activation in the right inferior frontal gyrus (IFG) and middle frontal gyrus (MFG) during go/no-go tasks. The reduced right IFG/MFG activation was acutely normalized after MPH administration, but not after placebo administration. The MPH-induced right IFG/MFG activation was significantly larger than the placebo-induced activation. Post-scan exclusion rate was 0% among 16 right-handed ADHD children with IQ > 70. We revealed that the right IFG/MFG activation could serve as a neuro-functional biomarker for monitoring the acute effects of methylphenidate in ADHD children. fNIRS-based examinations were applicable to ADHD children as young as 6 years old, and thus would contribute to early clinical diagnosis and treatment of ADHD children.
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Geburek AJ, Rist F, Gediga G, Stroux D, Pedersen A. Electrophysiological indices of error monitoring in juvenile and adult attention deficit hyperactivity disorder (ADHD)--a meta-analytic appraisal. Int J Psychophysiol 2012; 87:349-62. [PMID: 22902313 DOI: 10.1016/j.ijpsycho.2012.08.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 08/07/2012] [Accepted: 08/08/2012] [Indexed: 10/28/2022]
Abstract
Attempts to identify the central disturbed processes explaining the overt symptoms of juvenile and adult ADHD rely heavily on the concept of deficient error monitoring processes. A number of studies have investigated event-related potentials (ERPs) and behavioral performance in tasks traditionally used to probe the interference control and inhibition of motor responses. The inspection of the error negativity (Ne/ERN) and error positivity (Pe) components evoked in these tasks has produced conflicting results with respect to the nature and extent of an error monitoring deficit in ADHD. A meta-analytic aggregation of these single studies should help develop a reliable appraisal of the evidence for the compromised performance monitoring processes in ADHD. Our meta-analysis was confined to studies of adult and juvenile ADHD participants examined in GoNogo and Flanker task studies that also reported the Ne/ERN and Pe ERP components. Only seven studies were suited for the meta-analysis, but their aggregation nevertheless led to clear results: Ne was attenuated in adult and adolescent ADHD participants for both tasks, and Pe was attenuated only in the GoNogo tasks. The ADHD participants made more errors than the controls in both tasks but responded slower only in the Flanker task. To our knowledge, this meta-analysis is the first to compare electrophysiological and behavioral indices of error monitoring in adult and juvenile ADHD patients and healthy controls. Admittedly, the data available for this comparison were sparse and heterogeneous; nevertheless, this meta-analysis produced salient results that indicate a monitoring deficit as a central feature of the ADHD syndrome.
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Affiliation(s)
- A J Geburek
- Clinical Psychology and Psychotherapy, Institute of Psychology, University of Münster, Fliednerstraße 21, 48149 Münster, Germany.
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Sagaspe P, Taillard J, Amiéva H, Beck A, Rascol O, Dartigues JF, Capelli A, Philip P. Influence of age, circadian and homeostatic processes on inhibitory motor control: a Go/Nogo task study. PLoS One 2012; 7:e39410. [PMID: 22761784 PMCID: PMC3382614 DOI: 10.1371/journal.pone.0039410] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 05/24/2012] [Indexed: 11/17/2022] Open
Abstract
Introduction The contribution of circadian system and sleep pressure influences on executive performance as a function of age has never been studied. The aim of our study was to determine the age-related evolution of inhibitory motor control (i.e., ability to suppress a prepotent motor response) and sustained attention under controlled high or low sleep pressure conditions. Methods 14 healthy young males (mean age = 23±2.7; 20–29 years) and 11 healthy older males (mean age = 68±1.4; 66–70 years) were recruited. The volunteers were placed for 40 hours in “constant routine”. In the “Sleep Deprivation SD” condition, the volunteer was kept awake for 40 hours to obtain a high sleep pressure condition interacting with the circadian process. In the “NAP” condition, the volunteer adopted a short wake/sleep cycle (150/75 min) resulting in a low sleep pressure condition to counteract the homeostatic pressure and investigate the circadian process. Performances were evaluated by a simple reaction time task and a Go/Nogo task repeated every 3H45. Results In the SD condition, inhibitory motor control (i.e., ability to inhibit an inappropriate response) was impaired by extended wakefulness equally in both age groups (P<.01). Sustained attention (i.e. ability to respond accurately to appropriate stimuli) on the executive task decreased under sleep deprivation in both groups, and even more in young participants (P<.05). In the NAP condition, age did not influence the time course of inhibitory motor control or sustained attention. In the SD and NAP conditions, older participants had a less fluctuating reaction time performance across time of day than young participants (P<.001). Conclusion Aging could be a protective factor against the effects of extended wakefulness especially on sustained attention failures due to an attenuation of sleep pressure with duration of time awake.
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Affiliation(s)
- Patricia Sagaspe
- CNRS USR 3413 SANPSY, Sleep, Attention and NeuroPSYchiatrie, Université de Bordeaux, Bordeaux, France.
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