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Nasello C, Poppi LA, Wu J, Kowalski TF, Thackray JK, Wang R, Persaud A, Mahboob M, Lin S, Spaseska R, Johnson CK, Gordon D, Tissir F, Heiman GA, Tischfield JA, Bocarsly M, Tischfield MA. Human mutations in high-confidence Tourette disorder genes affect sensorimotor behavior, reward learning, and striatal dopamine in mice. Proc Natl Acad Sci U S A 2024; 121:e2307156121. [PMID: 38683996 PMCID: PMC11087812 DOI: 10.1073/pnas.2307156121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 02/13/2024] [Indexed: 05/02/2024] Open
Abstract
Tourette disorder (TD) is poorly understood, despite affecting 1/160 children. A lack of animal models possessing construct, face, and predictive validity hinders progress in the field. We used CRISPR/Cas9 genome editing to generate mice with mutations orthologous to human de novo variants in two high-confidence Tourette genes, CELSR3 and WWC1. Mice with human mutations in Celsr3 and Wwc1 exhibit cognitive and/or sensorimotor behavioral phenotypes consistent with TD. Sensorimotor gating deficits, as measured by acoustic prepulse inhibition, occur in both male and female Celsr3 TD models. Wwc1 mice show reduced prepulse inhibition only in females. Repetitive motor behaviors, common to Celsr3 mice and more pronounced in females, include vertical rearing and grooming. Sensorimotor gating deficits and rearing are attenuated by aripiprazole, a partial agonist at dopamine type II receptors. Unsupervised machine learning reveals numerous changes to spontaneous motor behavior and less predictable patterns of movement. Continuous fixed-ratio reinforcement shows that Celsr3 TD mice have enhanced motor responding and reward learning. Electrically evoked striatal dopamine release, tested in one model, is greater. Brain development is otherwise grossly normal without signs of striatal interneuron loss. Altogether, mice expressing human mutations in high-confidence TD genes exhibit face and predictive validity. Reduced prepulse inhibition and repetitive motor behaviors are core behavioral phenotypes and are responsive to aripiprazole. Enhanced reward learning and motor responding occur alongside greater evoked dopamine release. Phenotypes can also vary by sex and show stronger affection in females, an unexpected finding considering males are more frequently affected in TD.
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Affiliation(s)
- Cara Nasello
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
| | - Lauren A. Poppi
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ08901
| | - Junbing Wu
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ08901
| | - Tess F. Kowalski
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ08901
| | - Joshua K. Thackray
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
| | - Riley Wang
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
| | - Angelina Persaud
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ08901
| | - Mariam Mahboob
- Department of Pharmacology, Physiology, and Neuroscience, Rutgers New Jersey Medical School and Rutgers Biomedical and Health Sciences, Newark, NJ07103
| | - Sherry Lin
- Department of Neurobiology, Harvard Medical School, Boston, MA02115
| | - Rodna Spaseska
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
| | - C. K. Johnson
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
| | - Derek Gordon
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
| | - Fadel Tissir
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha34110, Qatar
- Laboratory of Developmental Neurobiology, Institute of Neuroscience, Université Catholique de Louvain, Brussels1200, Belgium
| | - Gary A. Heiman
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
| | - Jay A. Tischfield
- Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ08854
| | - Miriam Bocarsly
- Department of Pharmacology, Physiology, and Neuroscience, Rutgers New Jersey Medical School and Rutgers Biomedical and Health Sciences, Newark, NJ07103
| | - Max A. Tischfield
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ08854
- Child Health Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ08901
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2
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Takacs A, Toth-Faber E, Schubert L, Tárnok Z, Ghorbani F, Trelenberg M, Nemeth D, Münchau A, Beste C. Resting network architecture of theta oscillations reflects hyper-learning of sensorimotor information in Gilles de la Tourette syndrome. Brain Commun 2024; 6:fcae092. [PMID: 38562308 PMCID: PMC10984574 DOI: 10.1093/braincomms/fcae092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/01/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
Gilles de la Tourette syndrome is a neurodevelopmental disorder characterized by motor and vocal tics. It is associated with enhanced processing of stimulus-response associations, including a higher propensity to learn probabilistic stimulus-response contingencies (i.e. statistical learning), the nature of which is still elusive. In this study, we investigated the hypothesis that resting-state theta network organization is a key for the understanding of superior statistical learning in these patients. We investigated the graph-theoretical network architecture of theta oscillations in adult patients with Gilles de la Tourette syndrome and healthy controls during a statistical learning task and in resting states both before and after learning. We found that patients with Gilles de la Tourette syndrome showed a higher statistical learning score than healthy controls, as well as a more optimal (small-world-like) theta network before the task. Thus, patients with Gilles de la Tourette syndrome had a superior facility to integrate and evaluate novel information as a trait-like characteristic. Additionally, the theta network architecture in Gilles de la Tourette syndrome adapted more to the statistical information during the task than in HC. We suggest that hyper-learning in patients with Gilles de la Tourette syndrome is likely a consequence of increased sensitivity to perceive and integrate sensorimotor information leveraged through theta oscillation-based resting-state dynamics. The study delineates the neural basis of a higher propensity in patients with Gilles de la Tourette syndrome to pick up statistical contingencies in their environment. Moreover, the study emphasizes pathophysiologically endowed abilities in patients with Gilles de la Tourette syndrome, which are often not taken into account in the perception of this common disorder but could play an important role in destigmatization.
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Affiliation(s)
- Adam Takacs
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden 01069, Germany
- Faculty of Medicine, University Neuropsychology Center, TU Dresden, Dresden 01069, Germany
| | - Eszter Toth-Faber
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest 1064, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, HUN-REN Research Centre for Natural Sciences, Budapest 1117, Hungary
| | - Lina Schubert
- Institute of Systems Motor Science, University of Lübeck, Lübeck 23562, Germany
| | - Zsanett Tárnok
- Vadaskert Child and Adolescent Psychiatry Hospital and Outpatient Clinic, Budapest 1021, Hungary
| | - Foroogh Ghorbani
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden 01069, Germany
- Faculty of Medicine, University Neuropsychology Center, TU Dresden, Dresden 01069, Germany
| | - Madita Trelenberg
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden 01069, Germany
| | - Dezso Nemeth
- INSERM, Université Claude Bernard Lyon 1, CNRS, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, Bron 69500, France
- NAP Research Group, Institute of Psychology, Eötvös Loránd University & Institute of Cognitive Neuroscience and Psychology, HUN-REN Research Centre for Natural Sciences, Budapest 1071, Hungary
- Department of Education and Psychology, Faculty of Social Sciences, University of Atlántico Medio, Las Palmas de Gran Canaria 35017, Spain
| | - Alexander Münchau
- Institute of Systems Motor Science, University of Lübeck, Lübeck 23562, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden 01069, Germany
- Faculty of Medicine, University Neuropsychology Center, TU Dresden, Dresden 01069, Germany
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Nasello C, Poppi LA, Wu J, Kowalski TF, Thackray JK, Wang R, Persaud A, Mahboob M, Lin S, Spaseska R, Johnson CK, Gordon D, Tissir F, Heiman GA, Tischfield JA, Bocarsly M, Tischfield MA. Human mutations in high-confidence Tourette disorder genes affect sensorimotor behavior, reward learning, and striatal dopamine in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.28.569034. [PMID: 38077033 PMCID: PMC10705456 DOI: 10.1101/2023.11.28.569034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
Tourette disorder (TD) is poorly understood, despite affecting 1/160 children. A lack of animal models possessing construct, face, and predictive validity hinders progress in the field. We used CRISPR/Cas9 genome editing to generate mice with mutations orthologous to human de novo variants in two high-confidence Tourette genes, CELSR3 and WWC1 . Mice with human mutations in Celsr3 and Wwc1 exhibit cognitive and/or sensorimotor behavioral phenotypes consistent with TD. Sensorimotor gating deficits, as measured by acoustic prepulse inhibition, occur in both male and female Celsr3 TD models. Wwc1 mice show reduced prepulse inhibition only in females. Repetitive motor behaviors, common to Celsr3 mice and more pronounced in females, include vertical rearing and grooming. Sensorimotor gating deficits and rearing are attenuated by aripiprazole, a partial agonist at dopamine type II receptors. Unsupervised machine learning reveals numerous changes to spontaneous motor behavior and less predictable patterns of movement. Continuous fixed-ratio reinforcement shows Celsr3 TD mice have enhanced motor responding and reward learning. Electrically evoked striatal dopamine release, tested in one model, is greater. Brain development is otherwise grossly normal without signs of striatal interneuron loss. Altogether, mice expressing human mutations in high-confidence TD genes exhibit face and predictive validity. Reduced prepulse inhibition and repetitive motor behaviors are core behavioral phenotypes and are responsive to aripiprazole. Enhanced reward learning and motor responding occurs alongside greater evoked dopamine release. Phenotypes can also vary by sex and show stronger affection in females, an unexpected finding considering males are more frequently affected in TD. Significance Statement We generated mouse models that express mutations in high-confidence genes linked to Tourette disorder (TD). These models show sensorimotor and cognitive behavioral phenotypes resembling TD-like behaviors. Sensorimotor gating deficits and repetitive motor behaviors are attenuated by drugs that act on dopamine. Reward learning and striatal dopamine is enhanced. Brain development is grossly normal, including cortical layering and patterning of major axon tracts. Further, no signs of striatal interneuron loss are detected. Interestingly, behavioral phenotypes in affected females can be more pronounced than in males, despite male sex bias in the diagnosis of TD. These novel mouse models with construct, face, and predictive validity provide a new resource to study neural substrates that cause tics and related behavioral phenotypes in TD.
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Atkinson-Clement C, Lebreton M, Patsalides L, de Liege A, Klein Y, Roze E, Deniau E, Hartmann A, Palminteri S, Worbe Y. Decision-making under risk and ambiguity in adults with Tourette syndrome. Psychol Med 2023; 53:5256-5266. [PMID: 35899867 DOI: 10.1017/s0033291722002318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Tourette syndrome (TS) as well as its most common comorbidities are associated with a higher propensity for risky behaviour in everyday life. However, it is unclear whether this increased risk propensity in real-life contexts translates into a generally increased attitude towards risk. We aimed to assess decision-making under risk and ambiguity based on prospect theory by considering the effects of comorbidities and medication. METHODS Fifty-four individuals with TS and 32 healthy controls performed risk and ambiguity decision-making tasks under both gains and losses conditions. Behavioural and computational parameters were evaluated using (i) univariate analysis to determine parameters difference taking independently; (ii) supervised multivariate analysis to evaluate whether our parameters could jointly account for between-group differences (iii) unsupervised multivariate analysis to explore the potential presence of sub-groups. RESULTS Except for general 'noisier' (less consistent) decisions in TS, we showed no specific risk-taking behaviour in TS or any relation with tics severity or antipsychotic medication. However, the presence of comorbidities was associated with distortion of decision-making. Specifically, TS with obsessive-compulsive disorder comorbidity was associated with a higher risk-taking profile to increase gain and a higher risk-averse profile to decrease loss. TS with attention-deficit hyperactivity disorder comorbidity was associated with risk-seeking in the ambiguity context to reduce a potential loss. CONCLUSIONS Impaired valuation of risk and ambiguity was not related to TS per se. Our findings are important for clinical practice: the involvement of individuals with TS in real-life risky situations may actually rather result from other factors such as psychiatric comorbidities.
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Affiliation(s)
- Cyril Atkinson-Clement
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Mael Lebreton
- Paris School of Economics, Paris, France
- Swiss Center for Affective Science, University of Geneva, Geneva, Switzerland
- Laboratory for Behavioral Neurology and Imaging of Cognition, Department of Fundamental Neurosciences, University of Geneva, Geneva, Switzerland
| | - Leïla Patsalides
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
| | - Astrid de Liege
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- National Reference Center for Tourette Syndrome, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, F-75013 Paris, France
| | - Yanica Klein
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- National Reference Center for Tourette Syndrome, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, F-75013 Paris, France
| | - Emmanuel Roze
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- Department of Neurology, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, F-75013 Paris, France
| | - Emmanuelle Deniau
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- National Reference Center for Tourette Syndrome, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, F-75013 Paris, France
| | - Andreas Hartmann
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- National Reference Center for Tourette Syndrome, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, F-75013 Paris, France
| | - Stefano Palminteri
- Laboratoire de Neurosciences Cognitives et Computationnelles, INSERM, Paris, France
- Département d'Etudes Cognitives, ENS, PSL Research University, Paris, France
- Institute for Cognitive Neuroscience, HSE, Moscow, Russian Federation
| | - Yulia Worbe
- Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Sorbonne University, 75005 Paris, France
- Movement Investigation and Therapeutics Team, Paris, France
- National Reference Center for Tourette Syndrome, Assistance Publique des Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, F-75013 Paris, France
- Department of Neurophysiology, Saint Antoine Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
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Woods DW, Himle MB, Stiede JT, Pitts BX. Behavioral Interventions for Children and Adults with Tic Disorder. Annu Rev Clin Psychol 2023; 19:233-260. [PMID: 37159286 DOI: 10.1146/annurev-clinpsy-080921-074307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Over the past decade, behavioral interventions have become increasingly recognized and recommended as effective first-line therapies for treating individuals with tic disorders. In this article, we describe a basic theoretical and conceptual framework through which the reader can understand the application of these interventions for treating tics. The three primary behavioral interventions for tics with the strongest empirical support (habit reversal, Comprehensive Behavioral Intervention for Tics, and exposure and response prevention) are described. Research on the efficacy and effectiveness of these treatments is summarized along with a discussion of the research evaluating the delivery of these treatments in different formats and modalities. The article closes with a review of the possible mechanisms of change underlying behavioral interventions for tics and areas for future research.
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Affiliation(s)
- Douglas W Woods
- Department of Psychology, Marquette University, Milwaukee, Wisconsin, USA;
| | - Michael B Himle
- Department of Psychology, University of Utah, Salt Lake City, Utah, USA
| | - Jordan T Stiede
- Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, Texas, USA
| | - Brandon X Pitts
- Department of Psychology, Marquette University, Milwaukee, Wisconsin, USA;
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Sporn S, Chen X, Galea JM. The dissociable effects of reward on sequential motor behavior. J Neurophysiol 2022; 128:86-104. [PMID: 35642849 PMCID: PMC9291426 DOI: 10.1152/jn.00467.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 05/05/2022] [Accepted: 05/26/2022] [Indexed: 01/14/2023] Open
Abstract
Reward has consistently been shown to enhance motor behavior; however, its beneficial effects appear to be largely unspecific. For example, reward is associated with both rapid and training-dependent improvements in performance, with a mechanistic account of these effects currently lacking. Here we tested the hypothesis that these distinct reward-based improvements are driven by dissociable reward types: monetary incentive and performance feedback. Whereas performance feedback provides information on how well a motor task has been completed (knowledge of performance), monetary incentive increases the motivation to perform optimally without providing a performance-based learning signal. Experiment 1 showed that groups who received monetary incentive rapidly improved movement times (MTs), using a novel sequential reaching task. In contrast, only groups with correct performance-based feedback showed learning-related improvements. Importantly, pairing both maximized MT performance gains and accelerated movement fusion. Fusion describes an optimization process during which neighboring sequential movements blend together to form singular actions. Results from experiment 2 served as a replication and showed that fusion led to enhanced performance speed while also improving movement efficiency through increased smoothness. Finally, experiment 3 showed that these improvements in performance persist for 24 h even without reward availability. This highlights the dissociable impact of monetary incentive and performance feedback, with their combination maximizing performance gains and leading to stable improvements in the speed and efficiency of sequential actions.NEW & NOTEWORTHY Our work provides a mechanistic framework for how reward influences motor behavior. Specifically, we show that rapid improvements in speed and accuracy are driven by reward presented in the form of money, whereas knowledge of performance through performance feedback leads to training-based improvements. Importantly, combining both maximized performance gains and led to improvements in movement quality through fusion, which describes an optimization process during which sequential movements blend into a single action.
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Affiliation(s)
- Sebastian Sporn
- School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, United Kingdom
- Department of Clinical and Movement Neuroscience, Queens Square Institute of Neurology, University College London, London, United Kingdom
| | - Xiuli Chen
- School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, United Kingdom
| | - Joseph M Galea
- School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, United Kingdom
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7
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Enhanced habit formation in Tourette patients explained by shortcut modulation in a hierarchical cortico-basal ganglia model. Brain Struct Funct 2022; 227:1031-1050. [PMID: 35113242 PMCID: PMC8930794 DOI: 10.1007/s00429-021-02446-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 12/15/2021] [Indexed: 12/28/2022]
Abstract
Devaluation protocols reveal that Tourette patients show an increased propensity to habitual behaviors as they continue to respond to devalued outcomes in a cognitive stimulus-response-outcome association task. We use a neuro-computational model of hierarchically organized cortico-basal ganglia-thalamo-cortical loops to shed more light on habit formation and its alteration in Tourette patients. In our model, habitual behavior emerges from cortico-thalamic shortcut connections, where enhanced habit formation can be linked to faster plasticity in the shortcut or to a stronger feedback from the shortcut to the basal ganglia. We explore two major hypotheses of Tourette pathophysiology-local striatal disinhibition and increased dopaminergic modulation of striatal medium spiny neurons-as causes for altered shortcut activation. Both model changes altered shortcut functioning and resulted in higher rates of responses towards devalued outcomes, similar to what is observed in Tourette patients. We recommend future experimental neuroscientific studies to locate shortcuts between cortico-basal ganglia-thalamo-cortical loops in the human brain and study their potential role in health and disease.
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8
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Johnson BP, Cohen LG. Reward and plasticity: Implications for neurorehabilitation. HANDBOOK OF CLINICAL NEUROLOGY 2022; 184:331-340. [PMID: 35034746 DOI: 10.1016/b978-0-12-819410-2.00018-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neuroplasticity follows nervous system injury in the presence or absence of rehabilitative treatments. Rehabilitative interventions can be used to modulate adaptive neuroplasticity, reducing motor impairment and improving activities of daily living in patients with brain lesions. Learning principles guide some rehabilitative interventions. While basic science research has shown that reward combined with training enhances learning, this principle has been only recently explored in the context of neurorehabilitation. Commonly used reinforcers may be more or less rewarding depending on the individual or the context in which the task is performed. Studies in healthy humans showed that both reward and punishment can enhance within-session motor performance; but reward, and not punishment, improves consolidation and retention of motor skills. On the other hand, neurorehabilitative training after brain lesions involves complex tasks (e.g., walking and activities of daily living). The contribution of reward to neurorehabilitation is incompletely understood. Here, we discuss recent research on the role of reward in neurorehabilitation and the needed directions of future research.
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Affiliation(s)
- Brian P Johnson
- Human Cortical Physiology and Neurorehabilitation Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Leonardo G Cohen
- Human Cortical Physiology and Neurorehabilitation Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States.
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9
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Narapareddy A, Eckland MR, Riordan HR, Cascio CJ, Isaacs DA. Altered Interoceptive Sensibility in Adults With Chronic Tic Disorder. Front Psychiatry 2022; 13:914897. [PMID: 35800022 PMCID: PMC9253400 DOI: 10.3389/fpsyt.2022.914897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/31/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Interoception refers to the sensing, interpretation, integration, and regulation of signals about the body's internal physiological state. Interoceptive sensibility is the subjective evaluation of interoceptive experience, as assessed by self-report measures, and is abnormal in numerous neuropsychiatric disorders. Research examining interoceptive sensibility in individuals with chronic tic disorders (CTDs), however, has yielded conflicting results, likely due to methodologic differences between studies and small sample sizes. OBJECTIVE We sought to compare interoceptive sensibility between adults with CTD and healthy controls, adjusting for co-occurring psychiatric symptoms, and to examine the relationship of interoceptive sensibility with other CTD clinical features, in particular, premonitory urge. METHODS We recruited adults with CTDs and sex- and age-matched healthy controls to complete the Multidimensional Assessment of Interoceptive Awareness, Version 2 (MAIA-2), as well as a battery of measures assessing psychiatric symptoms prevalent in CTD populations. CTD participants additionally completed scales quantifying tic severity, premonitory urge severity, and health-related quality of life. We conducted between-group contrasts (Wilcoxon rank-sum test) for each MAIA-2 subscale, analyzed the effect of psychiatric symptoms on identified between-group differences (multivariable linear regression), and examined within-group relationships between MAIA-2 subscales and other clinical measures (Spearman rank correlations, multivariable linear regression). RESULTS Between adults with CTD (n = 48) and healthy controls (n = 48), MAIA-2 Noticing and Not-Worrying subscale scores significantly differed. After adjusting for covariates, lower MAIA-2 Not-Worrying subscale scores were significantly associated with female sex (β = 0.42, p < 0.05) and greater severity of obsessive-compulsive symptoms (β = -0.028, p < 0.01), but not with CTD diagnosis. After adjusting for severity of tics and obsessive-compulsive symptoms, a composite of MAIA-2 Noticing, Attention Regulation, Emotional Awareness, Self-Regulation, Body Listening, and Trusting subscales (β = 2.52, p < 0.01) was significantly associated with premonitory urge. CONCLUSION Study results revealed three novel findings: adults with CTD experience increased anxiety-associated somatization and increased general body awareness relative to healthy controls; anxiety-associated somatization is more closely associated with sex and obsessive-compulsive symptoms than with CTD diagnosis; and increased general body awareness is associated with greater severity of premonitory urges.
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Affiliation(s)
| | - Michelle R Eckland
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Heather R Riordan
- Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, TN, United States
| | - Carissa J Cascio
- Vanderbilt Kennedy Center, Vanderbilt University, Nashville, TN, United States.,Frist Center for Autism and Innovation, Vanderbilt University, Nashville, TN, United States.,Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, United States
| | - David A Isaacs
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, TN, United States
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10
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Liu L, Zhou LA, Sun YL. The effectiveness of Chinese herbal medicine for tic disorders in children and adolescents: A protocol for systematic review and meta analysis. Medicine (Baltimore) 2021; 100:e28190. [PMID: 34941077 PMCID: PMC8702294 DOI: 10.1097/md.0000000000028190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 11/19/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The tic disorders are common neuropsychiatric disorders that affects the growth and development of children and adolescents. Chinese herbal medicine is commonly used for the treatment of tic disorders. However, there is no consensus on the difference in clinical efficacy compared with routine treatment. Therefore, we plan to perform a systematic review and meta-analysis to review the clinical efficacy of Chinese herbal medicine for tic disorders. METHODS Cochrane Central Register of Controlled Trials, PubMed, EMBASE, Chinese National Knowledge Infrastructure, Chinese Bio-medical Database, and Wanfang database will be searched from their inception until March 31, 2021. The meta-analysis will be conducted with Review Manager 5.3 software to systematically review the clinical efficacy and safety of Chinese herbal medicine for tic disorders. The primary outcome will include the improvement rate (amount) of tic symptoms using related scales or methods, and the secondary outcome will include adverse events. RESULTS This analysis will provide useful information about clinical efficacy and safety of Chinese herbal medicine for tic disorders. CONCLUSIONS Our study will generate strong evidence of Chinese herbal medicine for patients with tic disorders and provide suggestions for clinical practice.
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Affiliation(s)
- Li Liu
- Department of Chinese Medicine, Jiaxing Maternity and Child Health Care Hospital, No. 2468 of Central East Road, Nanhu District, Jiaxing, Zhejiang, China
| | - Liang-An Zhou
- Intensive Care Unit, Pinghu Hospital of Traditional Chinese Medicine, No. 74 Danghu West Road, Pinghu, Zhejiang, China
| | - Ya-Lei Sun
- Affiliated Hospital of Nanjing University of Chinese Medicine, No. 155 Hanzhong Road, Qinhuai District, Nanjing, Jiangsu, China
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11
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Farkas BC, Tóth-Fáber E, Janacsek K, Nemeth D. A Process-Oriented View of Procedural Memory Can Help Better Understand Tourette's Syndrome. Front Hum Neurosci 2021; 15:683885. [PMID: 34955784 PMCID: PMC8707288 DOI: 10.3389/fnhum.2021.683885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 11/25/2021] [Indexed: 11/13/2022] Open
Abstract
Tourette's syndrome (TS) is a neurodevelopmental disorder characterized by repetitive movements and vocalizations, also known as tics. The phenomenology of tics and the underlying neurobiology of the disorder have suggested that the altered functioning of the procedural memory system might contribute to its etiology. However, contrary to the robust findings of impaired procedural memory in neurodevelopmental disorders of language, results from TS have been somewhat mixed. We review the previous studies in the field and note that they have reported normal, impaired, and even enhanced procedural performance. These mixed findings may be at least partially be explained by the diversity of the samples in both age and tic severity, the vast array of tasks used, the low sample sizes, and the possible confounding effects of other cognitive functions, such as executive functions, working memory or attention. However, we propose that another often overlooked factor could also contribute to the mixed findings, namely the multiprocess nature of the procedural system itself. We propose that a process-oriented view of procedural memory functions could serve as a theoretical framework to help integrate these varied findings. We discuss evidence suggesting heterogeneity in the neural regions and their functional contributions to procedural memory. Our process-oriented framework can help to deepen our understanding of the complex profile of procedural functioning in TS and atypical development in general.
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Affiliation(s)
- Bence Cs. Farkas
- LNC, Département d’Études Cognitives, École Normale Supérieure, INSERM, PSL Research University, Paris, France
| | - Eszter Tóth-Fáber
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Karolina Janacsek
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Centre for Thinking and Learning, Institute for Lifecourse Development, School of Human Sciences, Faculty of Education, Health and Human Sciences, University of Greenwich, London, United Kingdom
| | - Dezso Nemeth
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
- Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR 5292, Université Claude Bernard Lyon 1, Lyon, France
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12
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The sooner the better: clinical and neural correlates of impulsive choice in Tourette disorder. Transl Psychiatry 2021; 11:560. [PMID: 34732691 PMCID: PMC8566507 DOI: 10.1038/s41398-021-01691-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/15/2021] [Accepted: 10/20/2021] [Indexed: 12/25/2022] Open
Abstract
Reward sensitivity has been suggested as one of the central pathophysiological mechanisms in Tourette disorder. However, the subjective valuation of a reward by introduction of delay has received little attention in Tourette disorder, even though it has been suggested as a trans-diagnostic feature of numerous neuropsychiatric disorders. We aimed to assess delay discounting in Tourette disorder and to identify its brain functional correlates. We evaluated delayed discounting and its brain functional correlates in a large group of 54 Tourette disorder patients and 31 healthy controls using a data-driven approach. We identified a subgroup of 29 patients with steeper reward discounting, characterised by a higher burden of impulse-control disorders and a higher level of general impulsivity compared to patients with normal behavioural performance or to controls. Reward discounting was underpinned by resting-state activity of a network comprising the orbito-frontal, cingulate, pre-supplementary motor area, temporal and insular cortices, as well as ventral striatum and hippocampus. Within this network, (i) lower connectivity of pre-supplementary motor area with ventral striatum predicted a higher impulsivity and a steeper reward discounting and (ii) a greater connectivity of pre-supplementary motor area with anterior insular cortex predicted steeper reward discounting and more severe tics. Overall, our results highlight the heterogeneity of the delayed reward processing in Tourette disorder, with steeper reward discounting being a marker of burden in impulsivity and impulse control disorders, and the pre-supplementary motor area being a hub region for the delay discounting, impulsivity and tic severity.
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13
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Vassiliadis P, Derosiere G, Dubuc C, Lete A, Crevecoeur F, Hummel FC, Duque J. Reward boosts reinforcement-based motor learning. iScience 2021; 24:102821. [PMID: 34345810 PMCID: PMC8319366 DOI: 10.1016/j.isci.2021.102821] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/16/2021] [Accepted: 07/02/2021] [Indexed: 11/25/2022] Open
Abstract
Besides relying heavily on sensory and reinforcement feedback, motor skill learning may also depend on the level of motivation experienced during training. Yet, how motivation by reward modulates motor learning remains unclear. In 90 healthy subjects, we investigated the net effect of motivation by reward on motor learning while controlling for the sensory and reinforcement feedback received by the participants. Reward improved motor skill learning beyond performance-based reinforcement feedback. Importantly, the beneficial effect of reward involved a specific potentiation of reinforcement-related adjustments in motor commands, which concerned primarily the most relevant motor component for task success and persisted on the following day in the absence of reward. We propose that the long-lasting effects of motivation on motor learning may entail a form of associative learning resulting from the repetitive pairing of the reinforcement feedback and reward during training, a mechanism that may be exploited in future rehabilitation protocols.
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Affiliation(s)
- Pierre Vassiliadis
- Institute of Neuroscience, Université Catholique de Louvain, 53, Avenue Mounier, Brussels 1200, Belgium
- Defitech Chair for Clinical Neuroengineering, Center for Neuroprosthetics (CNP) and Brain Mind Institute (BMI), Swiss Federal Institute of Technology (EPFL), Geneva 1202, Switzerland
| | - Gerard Derosiere
- Institute of Neuroscience, Université Catholique de Louvain, 53, Avenue Mounier, Brussels 1200, Belgium
| | - Cecile Dubuc
- Institute of Neuroscience, Université Catholique de Louvain, 53, Avenue Mounier, Brussels 1200, Belgium
| | - Aegryan Lete
- Institute of Neuroscience, Université Catholique de Louvain, 53, Avenue Mounier, Brussels 1200, Belgium
| | - Frederic Crevecoeur
- Institute of Neuroscience, Université Catholique de Louvain, 53, Avenue Mounier, Brussels 1200, Belgium
- Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Université Catholique de Louvain, Louvain-la-Neuve 1348, Belgium
| | - Friedhelm C. Hummel
- Defitech Chair for Clinical Neuroengineering, Center for Neuroprosthetics (CNP) and Brain Mind Institute (BMI), Swiss Federal Institute of Technology (EPFL), Geneva 1202, Switzerland
- Defitech Chair for Clinical Neuroengineering, Center for Neuroprosthetics (CNP) and Brain Mind Institute (BMI), Swiss Federal Institute of Technology Sion (EPFL), Sion 1951, Switzerland
- Clinical Neuroscience, University of Geneva Medical School (HUG), Geneva 1202, Switzerland
| | - Julie Duque
- Institute of Neuroscience, Université Catholique de Louvain, 53, Avenue Mounier, Brussels 1200, Belgium
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14
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Takacs A, Münchau A, Nemeth D, Roessner V, Beste C. Lower-level associations in Gilles de la Tourette syndrome: Convergence between hyperbinding of stimulus and response features and procedural hyperfunctioning theories. Eur J Neurosci 2021; 54:5143-5160. [PMID: 34155701 DOI: 10.1111/ejn.15366] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/27/2021] [Accepted: 06/18/2021] [Indexed: 12/15/2022]
Abstract
Gilles de la Tourette syndrome (GTS) can be characterized by enhanced cognitive functions related to creating, modifying and maintaining connections between stimuli and responses (S-R links). Specifically, two areas, procedural sequence learning and, as a novel finding, also event file binding, show converging evidence of hyperfunctioning in GTS. In this review, we describe how these two enhanced functions can be considered as cognitive mechanisms behind habitual behaviour, such as tics in GTS. Moreover, the presence of both procedural sequence learning and event file binding hyperfunctioning in the same disorder can be treated as evidence for their functional connections, even beyond GTS. Importantly though, we argue that hyperfunctioning of event file binding and procedural learning are not interchangeable: they have different time scales, different sensitivities to potential impairment in action sequencing and distinguishable contributions to the cognitive profile of GTS. An integrated theoretical account of hyperbinding and hyperlearning in GTS allows to formulate predictions for the emergence, activation and long-term persistence of tics in GTS.
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Affiliation(s)
- Adam Takacs
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden, Germany
| | - Alexander Münchau
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
| | - Dezso Nemeth
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary.,Lyon Neuroscience Research Center (CRNL), Université de Lyon, Lyon, France
| | - Veit Roessner
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden, Germany
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15
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Ganos C, Neumann WJ, Müller-Vahl KR, Bhatia KP, Hallett M, Haggard P, Rothwell J. The Phenomenon of Exquisite Motor Control in Tic Disorders and its Pathophysiological Implications. Mov Disord 2021; 36:1308-1315. [PMID: 33739492 DOI: 10.1002/mds.28557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/21/2021] [Accepted: 02/16/2021] [Indexed: 12/28/2022] Open
Abstract
The unifying characteristic of movement disorders is the phenotypic presentation of abnormal motor outputs, either as isolated phenomena or in association with further clinical, often neuropsychiatric, features. However, the possibility of a movement disorder also characterized by supranormal or enhanced volitional motor control has not received attention. Based on clinical observations and cases collected over a number of years, we here describe the intriguing clinical phenomenon that people with tic disorders are often able to control specific muscle contractions as part of their tic behaviors to a degree that most humans typically cannot. Examples are given in accompanying video documentation. We explore medical literature on this topic and draw analogies with early research of fine motor control physiology in healthy humans. By systematically analyzing the probable sources of this unusual capacity, and focusing on neuroscientific accounts of voluntary motor control, sensory feedback, and the role of motor learning in tic disorders, we provide a novel pathophysiological account explaining both the presence of exquisite control over motor output and that of overall tic behaviors. We finally comment on key questions for future research on the topic and provide concluding remarks on the complex movement disorder of tic behaviors. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Christos Ganos
- Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Wolf-Julian Neumann
- Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kirsten R Müller-Vahl
- Clinic of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Kailash P Bhatia
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Mark Hallett
- Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Patrick Haggard
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
| | - John Rothwell
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
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16
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Tóth-Fáber E, Tárnok Z, Janacsek K, Kóbor A, Nagy P, Farkas BC, Oláh S, Merkl D, Hegedűs O, Nemeth D, Takács Á. Dissociation between two aspects of procedural learning in Tourette syndrome: Enhanced statistical and impaired sequence learning. Child Neuropsychol 2021; 27:799-821. [DOI: 10.1080/09297049.2021.1894110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Eszter Tóth-Fáber
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
| | | | - Karolina Janacsek
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
- Centre of Thinking and Learning, Institute for Lifecourse Development, School of Human Sciences, Faculty of Education, Health and Human Sciences, University of Greenwich, London, UK
| | - Andrea Kóbor
- Brain Imaging Centre, Research Centre for Natural Sciences, Budapest, Hungary
| | - Péter Nagy
- Vadaskert Child Psychiatry Hospital, Budapest, Hungary
- Bethesda Children's Hospital, Budapest, Hungary
| | - Bence Csaba Farkas
- Laboratoire de neurosciences Cognitives et computationnelles, Departement d’etudes Cognitives, École normale superieure, INSERM, PSL University, Paris, France
| | - Szabina Oláh
- Vadaskert Child Psychiatry Hospital, Budapest, Hungary
| | - Dóra Merkl
- Vadaskert Child Psychiatry Hospital, Budapest, Hungary
| | | | - Dezso Nemeth
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
- Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR5292, Université de Lyon 1, Lyon, France
| | - Ádám Takács
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden, Germany
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17
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18
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Steinke A, Kopp B. Toward a Computational Neuropsychology of Cognitive Flexibility. Brain Sci 2020; 10:E1000. [PMID: 33348638 PMCID: PMC7766646 DOI: 10.3390/brainsci10121000] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
Cognitive inflexibility is a well-documented, yet non-specific corollary of many neurological diseases. Computational modeling of covert cognitive processes supporting cognitive flexibility may provide progress toward nosologically specific aspects of cognitive inflexibility. We review computational models of the Wisconsin Card Sorting Test (WCST), which represents a gold standard for the clinical assessment of cognitive flexibility. A parallel reinforcement-learning (RL) model provides the best conceptualization of individual trial-by-trial WCST responses among all models considered. Clinical applications of the parallel RL model suggest that patients with Parkinson's disease (PD) and patients with amyotrophic lateral sclerosis (ALS) share a non-specific covert cognitive symptom: bradyphrenia. Impaired stimulus-response learning appears to occur specifically in patients with PD, whereas haphazard responding seems to occur specifically in patients with ALS. Computational modeling hence possesses the potential to reveal nosologically specific profiles of covert cognitive symptoms, which remain undetectable by traditionally applied behavioral methods. The present review exemplifies how computational neuropsychology may advance the assessment of cognitive flexibility. We discuss implications for neuropsychological assessment and directions for future research.
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Affiliation(s)
- Alexander Steinke
- Department of Neurology, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany;
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19
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Kleimaker A, Kleimaker M, Bäumer T, Beste C, Münchau A. Gilles de la Tourette Syndrome-A Disorder of Action-Perception Integration. Front Neurol 2020; 11:597898. [PMID: 33324336 PMCID: PMC7726237 DOI: 10.3389/fneur.2020.597898] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 11/04/2020] [Indexed: 12/19/2022] Open
Abstract
Gilles de la Tourette syndrome is a multifaceted and complex neuropsychiatric disorder. Given that tics as motor phenomena are the defining and cardinal feature of Tourette syndrome, it has long been conceptualized as a motor/movement disorder. However, considering premonitory urges preceding tics, hypersensitivity to external stimuli and abnormalities in sensorimotor integration perceptual processes also seem to be relevant in the pathophysiology of Tourette syndrome. In addition, tic expression depends on attention and tics can, at least partly and transiently, be controlled, so that cognitive processes need to be considered as well. Against this background, explanatory concepts should encompass not only the motor phenomenon tic but also perceptual and cognitive processes. Representing a comprehensive theory of the processing of perceptions and actions paying particular attention to their interdependency and the role of cognitive control, the Theory of Event Coding seems to be a suitable conceptual framework for the understanding of Tourette syndrome. In fact, recent data suggests that addressing the relation between actions (i.e., tics) and perceptions (i.e., sensory phenomena like premonitory urges) in the context of event coding allows to gaining relevant insights into perception-action coding in Tourette syndrome indicating that perception action binding is abnormally strong in this disorder.
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Affiliation(s)
- Alexander Kleimaker
- Center of Brain, Behavior and Metabolism, Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
- Department of Neurology, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Maximilian Kleimaker
- Center of Brain, Behavior and Metabolism, Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
- Department of Neurology, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Tobias Bäumer
- Center of Brain, Behavior and Metabolism, Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Alexander Münchau
- Center of Brain, Behavior and Metabolism, Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
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20
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Kleimaker M, Kleimaker A, Weissbach A, Colzato LS, Beste C, Bäumer T, Münchau A. Non-invasive Brain Stimulation for the Treatment of Gilles de la Tourette Syndrome. Front Neurol 2020; 11:592258. [PMID: 33244309 PMCID: PMC7683779 DOI: 10.3389/fneur.2020.592258] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/26/2020] [Indexed: 12/23/2022] Open
Abstract
Gilles de la Tourette Syndrome is a multifaceted neuropsychiatric disorder typically commencing in childhood and characterized by motor and phonic tics. Its pathophysiology is still incompletely understood. However, there is convincing evidence that structural and functional abnormalities in the basal ganglia, in cortico-striato-thalamo-cortical circuits, and some cortical areas including medial frontal regions and the prefrontal cortex as well as hyperactivity of the dopaminergic system are key findings. Conventional therapeutic approaches in addition to counseling comprise behavioral treatment, particularly habit reversal therapy, oral pharmacotherapy (antipsychotic medication, alpha-2-agonists) and botulinum toxin injections. In treatment-refractory Tourette syndrome, deep brain stimulation, particularly of the internal segment of the globus pallidus, is an option for a small minority of patients. Based on pathophysiological considerations, non-invasive brain stimulation might be a suitable alternative. Repetitive transcranial magnetic stimulation appears particularly attractive. It can lead to longer-lasting alterations of excitability and connectivity in cortical networks and inter-connected regions including the basal ganglia through the induction of neural plasticity. Stimulation of the primary motor and premotor cortex has so far not been shown to be clinically effective. Some studies, though, suggest that the supplementary motor area or the temporo-parietal junction might be more appropriate targets. In this manuscript, we will review the evidence for the usefulness of repetitive transcranial magnetic stimulation and transcranial electric stimulation as treatment options in Tourette syndrome. Based on pathophysiological considerations we will discuss the rational for other approaches of non-invasive brain stimulation including state informed repetitive transcranial magnetic stimulation.
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Affiliation(s)
- Maximilian Kleimaker
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany.,Department of Neurology, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Alexander Kleimaker
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany.,Department of Neurology, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Anne Weissbach
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
| | - Lorenza S Colzato
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Tobias Bäumer
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
| | - Alexander Münchau
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
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21
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Eördegh G, Pertich Á, Tárnok Z, Nagy P, Bodosi B, Giricz Z, Hegedűs O, Merkl D, Nyujtó D, Oláh S, Őze A, Vidomusz R, Nagy A. Impairment of visually guided associative learning in children with Tourette syndrome. PLoS One 2020; 15:e0234724. [PMID: 32544176 PMCID: PMC7297359 DOI: 10.1371/journal.pone.0234724] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 06/02/2020] [Indexed: 12/18/2022] Open
Abstract
The major symptoms of Tourette syndrome are motor and vocal tics, but Tourette syndrome is occasionally associated with cognitive alterations as well. Although Tourette syndrome does not affect the majority of cognitive functions, some of them improve. There is scarce evidence on the impairment of learning functions in patients with Tourette syndrome. The core symptoms of Tourette syndrome are related to dysfunction of the basal ganglia and the frontostriatal loops. Acquired equivalence learning is a kind of associative learning that is related to the basal ganglia and the hippocampi. The modified Rutgers Acquired Equivalence Test was used in the present study to observe the associative learning function of patients with Tourette syndrome. The cognitive learning task can be divided into two main phases: the acquisition and test phases. The latter is further divided into two parts: retrieval and generalization. The acquisition phase of the associative learning test, which mainly depends on the function of the basal ganglia, was affected in the entire patient group, which included patients with Tourette syndrome with attention deficit hyperactivity disorder, obsessive compulsive disorder, autism spectrum disorder, or no comorbidities. Patients with Tourette syndrome performed worse in building associations. However, the retrieval and generalization parts of the test phase, which primarily depend on the function of the hippocampus, were not worsened by Tourette syndrome.
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Affiliation(s)
- Gabriella Eördegh
- Faculty of Health Sciences and Social Studies, University of Szeged, Szeged, Hungary
| | - Ákos Pertich
- Department of Physiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Zsanett Tárnok
- Vadaskert Child and Adolescent Psychiatry, Budapest, Hungary
| | - Péter Nagy
- Vadaskert Child and Adolescent Psychiatry, Budapest, Hungary
| | - Balázs Bodosi
- Department of Physiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Zsófia Giricz
- Department of Physiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Orsolya Hegedűs
- Vadaskert Child and Adolescent Psychiatry, Budapest, Hungary
| | - Dóra Merkl
- Vadaskert Child and Adolescent Psychiatry, Budapest, Hungary
| | - Diána Nyujtó
- Department of Physiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Szabina Oláh
- Vadaskert Child and Adolescent Psychiatry, Budapest, Hungary
| | - Attila Őze
- Department of Physiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Réka Vidomusz
- Vadaskert Child and Adolescent Psychiatry, Budapest, Hungary
| | - Attila Nagy
- Department of Physiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
- * E-mail:
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22
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Freedberg M, Toader AC, Wassermann EM, Voss JL. Competitive and cooperative interactions between medial temporal and striatal learning systems. Neuropsychologia 2019; 136:107257. [PMID: 31733236 DOI: 10.1016/j.neuropsychologia.2019.107257] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/13/2019] [Accepted: 11/06/2019] [Indexed: 01/20/2023]
Abstract
The striatum and medial temporal lobes (MTL) exhibit dissociable roles during learning. Whereas the striatum and its network of thalamic relays and cortical nodes are necessary for nondeclarative learning, the MTL and associated network are required for declarative learning. Several studies have suggested that these networks are functionally competitive during learning. Since these discoveries, however, evidence has accumulated that they can operate in a cooperative fashion. In this review, we discuss evidence for both competition and cooperation between these systems during learning, with the aim of reconciling these seemingly contradictory findings. Examples of cooperation between the striatum and MTL have been provided, especially during consolidation and generalization of knowledge, and do not appear to be precluded by differences in functional specialization. However, whether these systems cooperate or compete does seem to depend on the phase of learning and cognitive or motor aspects of the task. The involvement of other regions, such as midbrain dopaminergic nuclei and the prefrontal cortex, may promote and mediate cooperation between the striatum and the MTL during learning. Building on this body of research, we propose a model for striatum-MTL interactions in learning and memory and attempt to predict, in general terms, when cooperation or competition will occur.
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Affiliation(s)
- Michael Freedberg
- National Institute of Neurological Disorders and Stroke, 9000 Rockville Pike, 10 Center Drive, Bethesda, MD 20892, USA; Henry M. Jackson Foundation for the Advancement of Military Medicine, 6720A Rockledge Drive, Bethesda, MD 20892, USA.
| | - Andrew C Toader
- National Institute of Neurological Disorders and Stroke, 9000 Rockville Pike, 10 Center Drive, Bethesda, MD 20892, USA; Weill Cornell/Rockefeller/Sloan-Kettering Tri-Institutional MD-PhD Program, New York, NY 20892, USA.
| | - Eric M Wassermann
- National Institute of Neurological Disorders and Stroke, 9000 Rockville Pike, 10 Center Drive, Bethesda, MD 20892, USA.
| | - Joel L Voss
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Ken and Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Northwestern University Interdepartmental Neuroscience Program, Northwestern University, Chicago, IL, USA.
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23
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Akkermans SEA, van Rooij D, Naaijen J, Forde NJ, Boecker-Schlier R, Openneer TJC, Dietrich A, Hoekstra PJ, Buitelaar JK. Neural reward processing in paediatric Tourette syndrome and/or attention-deficit/hyperactivity disorder. Psychiatry Res Neuroimaging 2019; 292:13-22. [PMID: 31473435 DOI: 10.1016/j.pscychresns.2019.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 07/10/2019] [Accepted: 08/08/2019] [Indexed: 11/19/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is the most common comorbidity in individuals with Tourette syndrome (TS). Yet, it is unclear to what extent TS and ADHD show overlapping or distinct neural abnormalities. ADHD has been associated with altered reward processing, but there are very few studies on reward processing in TS. This study assessed neural activation of basal ganglia and thalamus during reward anticipation and receipt in children with TS and/or ADHD. We analysed mean activations of a priori specified regions of interest during an fMRI monetary incentive delay task. Data was used from 124 children aged 8-12 years (TS n = 47, of which 29 had comorbid ADHD; ADHD n = 29; healthy controls n = 48). ADHD severity across ADHD and TS groups and healthy controls was marginally related to hypoactivation of the right nucleus accumbens during reward anticipation; this effect was not moderated by TS diagnosis. We detected no associations of neural activation with TS. The association between ADHD severity and hypoactivation of the right nucleus accumbens during reward anticipation, independent of the presence or absence of TS, is in line with the view of nucleus accumbens hypoactivation as a dimensional, neurofunctional marker of ADHD severity, transcending the boundaries of primary diagnosis.
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Affiliation(s)
- Sophie E A Akkermans
- Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Nijmegen, the Netherlands; Radboud University, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Nijmegen, the Netherlands.
| | - Daan van Rooij
- Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Nijmegen, the Netherlands; Radboud University, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Nijmegen, the Netherlands
| | - Jilly Naaijen
- Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Nijmegen, the Netherlands; Radboud University, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Nijmegen, the Netherlands
| | - Natalie J Forde
- Radboud University, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Nijmegen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Child and Adolescent Psychiatry, Groningen, the Netherlands
| | - Regina Boecker-Schlier
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - Thaira J C Openneer
- University of Groningen, University Medical Center Groningen, Department of Child and Adolescent Psychiatry, Groningen, the Netherlands
| | - Andrea Dietrich
- University of Groningen, University Medical Center Groningen, Department of Child and Adolescent Psychiatry, Groningen, the Netherlands
| | - Pieter J Hoekstra
- University of Groningen, University Medical Center Groningen, Department of Child and Adolescent Psychiatry, Groningen, the Netherlands
| | - Jan K Buitelaar
- Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Nijmegen, the Netherlands; Radboud University, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Nijmegen, the Netherlands; Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, the Netherlands
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24
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Doppler CEJ, Meyer L, Dovern A, Stühmer-Beckh J, Weiss PH, Fink GR. Differential Impact of Social and Monetary Reward on Procedural Learning and Consolidation in Aging and Its Structural Correlates. Front Aging Neurosci 2019; 11:188. [PMID: 31417395 PMCID: PMC6682642 DOI: 10.3389/fnagi.2019.00188] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 07/10/2019] [Indexed: 01/22/2023] Open
Abstract
In young (n = 36, mean ± SD: 24.8 ± 4.5 years) and older (n = 34, mean ± SD: 65.1 ± 6.5 years) healthy participants, we employed a modified version of the Serial Reaction Time task to measure procedural learning (PL) and consolidation while providing monetary and social reward. Using voxel-based morphometry (VBM), we additionally determined the structural correlates of reward-related motor performance (RMP) and PL. Monetary reward had a beneficial effect on PL in the older subjects only. In contrast, social reward significantly enhanced PL in the older and consolidation in the young participants. VBM analyses revealed that motor performance related to monetary reward was associated with larger grey matter volume (GMV) of the left striatum in the young, and motor performance related to social reward with larger GMV of the medial orbitofrontal cortex in the older group. The differential effects of social reward in young (improved consolidation) and both social and monetary rewards in older (enhanced PL) healthy subjects point to the potential of rewards for interventions targeting aging-associated motor decline or stroke-induced motor deficits.
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Affiliation(s)
- Christopher E J Doppler
- Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Jülich Research Centre, Jülich, Germany.,Department of Neurology, Faculty of Medicine, University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Linda Meyer
- Department of Neurology, Klinikum Leverkusen, Leverkusen, Germany
| | - Anna Dovern
- Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Jülich Research Centre, Jülich, Germany
| | - Jaro Stühmer-Beckh
- Department of Ophthalmology, University Hospital Würzburg, Würzburg, Germany
| | - Peter H Weiss
- Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Jülich Research Centre, Jülich, Germany.,Department of Neurology, Faculty of Medicine, University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Gereon R Fink
- Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Jülich Research Centre, Jülich, Germany.,Department of Neurology, Faculty of Medicine, University Hospital Cologne, University of Cologne, Cologne, Germany
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25
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Maigaard K, Nejad AB, Andersen KW, Herz DM, Hagstrøm J, Pagsberg AK, Skov L, Siebner HR, Plessen KJ. A superior ability to suppress fast inappropriate responses in children with Tourette syndrome is further improved by prospect of reward. Neuropsychologia 2019; 131:342-352. [PMID: 31103639 DOI: 10.1016/j.neuropsychologia.2019.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 12/31/2022]
Abstract
In children with Tourette syndrome (TS), tics are often attributed to deficient self-control by health-care professionals, parents, and peers. In this behavioural study, we examined response inhibition in TS using a modified Simon task which probes the ability to solve the response conflict between a new non-spatial rule and a highly-overlearned spatial stimulus-response mapping rule. We applied a distributional analysis to the behavioural data, which grouped the trials according to the individual distribution of reaction times in four time bins. Distributional analyses enabled us to probe the children's ability to control fast, impulsive, responses, which corresponded to the trials in the fastest time bin. Additionally, we tested whether the ability to suppress inappropriate action tendencies can be improved further by the prospect of a reward. Forty-one clinically well-characterized medication-naïve children with TS, 20 children with attention-deficit/hyperactivity disorder (ADHD), and 43 typically developing children performed a Simon task during alternating epochs with and without a prospect of reward. We applied repeated measures ANCOVAs to estimate how the prospect of reward modulated reaction times and response accuracy, while taking into account the distribution of the reaction times across trials. We found between-group differences in accuracy when subjects responded relatively fast. The TS group responded more accurately than typically developing control children when resolving the response conflict introduced by the Simon task. The opposite pattern was found in children with ADHD. Prospect of reward improved accuracy rates in all groups. Although the Tourette group performed with superior accuracy in the fast trials, it was still possible for them to benefit from prospect of reward in fast trials. The findings corroborate the notion that children with TS have an enhanced capacity to inhibit fast inappropriate response tendencies. This ability can be improved further by offering a prospect of reward which might be useful during non-pharmacological therapeutic interventions.
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Affiliation(s)
- Katrine Maigaard
- Child and Adolescent Mental Health Centre, Mental Health Services Capital Region Copenhagen, University of Copenhagen, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark.
| | - Ayna Baladi Nejad
- Child and Adolescent Mental Health Centre, Mental Health Services Capital Region Copenhagen, University of Copenhagen, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark
| | - Kasper Winther Andersen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark
| | - Damian Marc Herz
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; The Department of Neurology, Bispebjerg Hospital, University of Copenhagen, Denmark
| | - Julie Hagstrøm
- Child and Adolescent Mental Health Centre, Mental Health Services Capital Region Copenhagen, University of Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Anne Katrine Pagsberg
- Child and Adolescent Mental Health Centre, Mental Health Services Capital Region Copenhagen, University of Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Liselotte Skov
- The Department of Paediatrics, Herlev Hospital, University of Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; The Department of Neurology, Bispebjerg Hospital, University of Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Kerstin Jessica Plessen
- Child and Adolescent Mental Health Centre, Mental Health Services Capital Region Copenhagen, University of Copenhagen, Denmark; Division of Child and Adolescent Psychiatry, Department of Psychiatry, Lausanne University Hospital, Lausanne, Switzerland
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26
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Schintu S, Freedberg M, Alam ZM, Shomstein S, Wassermann EM. Left-shifting prism adaptation boosts reward-based learning. Cortex 2018; 109:279-286. [PMID: 30399479 PMCID: PMC7327780 DOI: 10.1016/j.cortex.2018.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/08/2018] [Accepted: 09/21/2018] [Indexed: 01/08/2023]
Abstract
Visuospatial cognition has an inherent lateralized bias. Individual differences in the direction and magnitude of this bias are associated with asymmetrical D2/3 dopamine binding and dopamine system genotypes. Dopamine level affects feedback-based learning and dopamine signaling asymmetry is related to differential learning from reward and punishment. High D2 binding in the left hemisphere is associated with preference for reward. Prism adaptation (PA) is a simple sensorimotor technique, which modulates visuospatial bias according to the direction of the deviation. Left-deviating prism adaptation (LPA) induces rightward bias in healthy subjects. It is therefore possible that the right side of space increases in saliency along with left hemisphere dopaminergic activity. Right-deviating prism adaptation (RPA) has been used mainly as a control condition because it does not modulate behavior in healthy individuals. Since LPA induces a rightward visuospatial bias as a result of left hemisphere modulation, and higher dopaminergic activity in the left hemisphere is associated with preference for rewarding events we hypothesized that LPA would increase the preference for learning with reward. Healthy volunteers performed a computer-based probabilistic classification task before and after LPA or RPA. Consistent with our predictions, PA altered the preference for rewarded versus punished learning, with the LPA group exhibiting increased learning from reward. These results suggest that PA modulates dopaminergic activity in a lateralized fashion.
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Affiliation(s)
- Selene Schintu
- Behavioral Neurology Unit, National Institute for Neurological Disorders and Stroke, Bethesda, USA; Department of Psychology, George Washington University, Washington, USA.
| | - Michael Freedberg
- Behavioral Neurology Unit, National Institute for Neurological Disorders and Stroke, Bethesda, USA; Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, USA
| | - Zaynah M Alam
- Behavioral Neurology Unit, National Institute for Neurological Disorders and Stroke, Bethesda, USA
| | - Sarah Shomstein
- Department of Psychology, George Washington University, Washington, USA
| | - Eric M Wassermann
- Behavioral Neurology Unit, National Institute for Neurological Disorders and Stroke, Bethesda, USA
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27
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Visuomotor learning and unlearning in children and adolescents with tourette syndrome. Cortex 2018; 109:50-59. [PMID: 30292925 DOI: 10.1016/j.cortex.2018.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/25/2018] [Accepted: 08/02/2018] [Indexed: 11/22/2022]
Abstract
Tourette syndrome (TS) is a childhood-onset neurological condition characterised by an evolving repertoire of chronic motor tics and one or more phonic tics. Tics, like habits, are inflexible and repetitive behaviours that are acquired over a period of time. It has been proposed that tics arise in TS as a result of increased habit learning: which may bias the child to acquire automatic behaviours (i.e., tics) more readily than is normal and make it harder to unlearn maladaptive habits once they have been acquired. Using a well-established visuomotor adaptation task, we investigated motor learning in a group of children and adolescents with a clinical diagnosis of TS relative to a group of age and gender matched typically developing individuals. In particular, we quantified differences in the strength and quality of motor learning and unlearning in TS, and the consolidation of motor learning over a 24 h washout period. We demonstrated that there was a marginally significant decrease in learning rate in the individuals with TS relative to age and gender matched typically developing controls. However, this effect was not associated with tic severity and could be entirely accounted for by the severity of co-occurring ADHD symptoms. Thus, once ADHD symptoms had been accounted for, there were no between group differences in learning rate or the degree of learning observed. By contrast, and more importantly, we found that following learning the rate of forgetting (unlearning) was significantly negatively associated with motor tic severity, such that individuals with more severe tics took longer to unlearn previously learnt motor patterns of behaviour. This finding is consistent with the proposal that TS is associated with alterations in the striatal habit learning system and with the view that TS may make it harder to unlearn maladaptive motor habits once they have been acquired.
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28
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Toward a computational cognitive neuropsychology of Wisconsin card sorts: a showcase study in Parkinson’s disease. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s42113-018-0009-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Tübing J, Gigla B, Brandt VC, Verrel J, Weissbach A, Beste C, Münchau A, Bäumer T. Associative plasticity in supplementary motor area - motor cortex pathways in Tourette syndrome. Sci Rep 2018; 8:11984. [PMID: 30097615 PMCID: PMC6086903 DOI: 10.1038/s41598-018-30504-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 07/31/2018] [Indexed: 12/29/2022] Open
Abstract
The important role of the supplementary motor area (SMA) in the generation of tics and urges in Gilles de la Tourette syndrome (GTS) is underscored by an increased SMA-motor cortex (M1) connectivity. However, whether plasticity is also altered in SMA-M1 pathways is unclear. We explored whether SMA-M1 plasticity is altered in patients with Tourette syndrome. 15 patients with GTS (mean age of 33.4 years, SD = 9.9) and 19 age and sex matched healthy controls were investigated with a paired association stimulation (PAS) protocol using three transcranial magnetic stimulation (TMS) coils stimulating both M1 and the SMA. Standard clinical measures for GTS symptoms were collected. There was a significant PAS effect showing that MEP amplitudes measured in blocks during and after PAS were significantly higher compared to those in the first block. However, the degree of PAS was not differentially modulated between patients and controls as shown by a Bayesian data analysis. PAS effects in GTS correlated positively with the YGTSS motor tic severity. Plasticity previously reported to be altered in sensorimotor pathways in GTS is normal in SMA-M1 projections suggesting that the dysfunction of the SMA in GTS is not primarily related to altered plasticity in SMA-M1 connections.
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Affiliation(s)
- Jennifer Tübing
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany.,Department of Neurology, University Medical Hospital of Schleswig-Holstein, 23538, Lübeck, Germany
| | - Bettina Gigla
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany
| | - Valerie Cathérine Brandt
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany.,Centre for Innovation in Mental Health, Department of Psychology, University of Southampton, SO17 1BJ, Southampton, England
| | - Julius Verrel
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany
| | - Anne Weissbach
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany.,Department of Neurology, University Medical Hospital of Schleswig-Holstein, 23538, Lübeck, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden, 01307, Dresden, Germany
| | - Alexander Münchau
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany
| | - Tobias Bäumer
- Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, University of Lübeck, 23562, Lübeck, Germany.
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30
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Shephard E, Groom MJ, Jackson GM. Implicit sequence learning in young people with Tourette syndrome with and without co-occurring attention-deficit/hyperactivity disorder. J Neuropsychol 2018; 13:529-549. [PMID: 29972622 DOI: 10.1111/jnp.12167] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 10/30/2018] [Indexed: 11/30/2022]
Abstract
Impaired habit-learning has been proposed to underlie the tic symptoms of Tourette syndrome (TS). However, accounts differ in terms of how habit-learning is altered in TS, with some authors proposing habit formation is impaired due to a deficient 'chunking' mechanism, and others proposing habit-learning is overactive and tics reflect hyperlearned behaviours. Attention-deficit/hyperactivity disorder (ADHD) frequently co-occurs with TS and is known to affect cognitive function in young people with co-occurring TS and ADHD (TS + ADHD). It is unclear, however, how co-occurring ADHD symptoms affect habit-learning in TS. In this study, we investigated whether young people with TS would show deficient or hyperactive habit-learning, and assessed the effects of co-occurring ADHD symptoms on habit-learning in TS. Participants aged 9-17 years with TS (n = 18), TS + ADHD (n = 17), ADHD (n = 13), and typical development (n = 20) completed a motor sequence learning task to assess habit-learning. We used a 2 (TS-yes, TS-no) × 2 (ADHD-yes, ADHD-no) factorial analysis to test the effects of TS, ADHD, and their interaction on accuracy and reaction time indices of sequence learning. TS was associated with intact sequence learning, but a tendency for difficulty transitioning from sequenced to non-sequenced performance was suggestive of hyper-learning. ADHD was associated with significantly poorer accuracy during acquisition of the sequence, indicative of impaired habit-learning. There were no interactions between the TS and ADHD factors, indicating young people with TS + ADHD showed both TS- and ADHD-related atypicalities in habit-learning.
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Affiliation(s)
- Elizabeth Shephard
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology, & Neuroscience, King's College London, UK
| | - Madeleine J Groom
- Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, UK
| | - Georgina M Jackson
- Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, UK
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31
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Added value of money on motor performance feedback: Increased left central beta-band power for rewards and fronto-central theta-band power for punishments. Neuroimage 2018; 179:63-78. [PMID: 29894825 DOI: 10.1016/j.neuroimage.2018.06.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/31/2018] [Accepted: 06/08/2018] [Indexed: 12/14/2022] Open
Abstract
Monetary rewards and punishments have been shown to respectively enhance retention of motor memories and short-term motor performance, but their underlying neural bases in the context of motor control tasks remain unclear. Using electroencephalography (EEG), the present study tested the hypothesis that monetary rewards and punishments are respectively reflected in post-feedback beta-band (20-30 Hz) and theta-band (3-8 Hz) oscillatory power. While participants performed upper limb reaching movements toward visual targets using their right hand, the delivery of monetary rewards and punishments was manipulated as well as their probability (i.e., by changing target size). Compared to unrewarded and unpunished trials, monetary rewards and the successful avoidance of punishments both entailed greater beta-band power at left central electrodes overlaying contralateral motor areas. In contrast, monetary punishments and reward omissions both entailed increased theta-band power at fronto-central scalp sites. Additional analyses revealed that beta-band power was further increased when rewards were lowly probable. In light of previous work demonstrating similar beta-band modulations in basal ganglia during reward processing, the present results may reflect functional communication of reward-related information between the basal ganglia and motor cortical regions. In turn, the increase in fronto-central theta-band power after monetary punishments may reflect an emphasized cognitive need for behavioral adjustments. Globally, the present work identifies possible neural substrates for the growing behavioral evidence showing beneficial effects of monetary feedback on motor learning and performance.
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32
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Separating the effect of reward from corrective feedback during learning in patients with Parkinson's disease. COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2018; 17:678-695. [PMID: 28397140 DOI: 10.3758/s13415-017-0505-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Parkinson's disease (PD) is associated with procedural learning deficits. Nonetheless, studies have demonstrated that reward-related learning is comparable between patients with PD and controls (Bódi et al., Brain, 132(9), 2385-2395, 2009; Frank, Seeberger, & O'Reilly, Science, 306(5703), 1940-1943, 2004; Palminteri et al., Proceedings of the National Academy of Sciences of the United States of America, 106(45), 19179-19184, 2009). However, because these studies do not separate the effect of reward from the effect of practice, it is difficult to determine whether the effect of reward on learning is distinct from the effect of corrective feedback on learning. Thus, it is unknown whether these group differences in learning are due to reward processing or learning in general. Here, we compared the performance of medicated PD patients to demographically matched healthy controls (HCs) on a task where the effect of reward can be examined separately from the effect of practice. We found that patients with PD showed significantly less reward-related learning improvements compared to HCs. In addition, stronger learning of rewarded associations over unrewarded associations was significantly correlated with smaller skin-conductance responses for HCs but not PD patients. These results demonstrate that when separating the effect of reward from the effect of corrective feedback, PD patients do not benefit from reward.
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33
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Beste C, Münchau A. Tics and Tourette syndrome - surplus of actions rather than disorder? Mov Disord 2017; 33:238-242. [DOI: 10.1002/mds.27244] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/10/2017] [Accepted: 10/20/2017] [Indexed: 12/25/2022] Open
Affiliation(s)
- Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden; Dresden Germany
- Experimental Neurobiology, National Institute of Mental Health; Klecany Czech Republic
| | - Alexander Münchau
- Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, Institute of Neurogenetics, Center for Brain, Behavior and Metabolism; University of Lubeck; Lubeck Germany
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34
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Premonitory urges and tics in Tourette syndrome: computational mechanisms and neural correlates. Curr Opin Neurobiol 2017; 46:187-199. [PMID: 29017141 DOI: 10.1016/j.conb.2017.08.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/01/2017] [Accepted: 08/21/2017] [Indexed: 12/22/2022]
Abstract
Tourette syndrome is characterized by open motor behaviors - tics - but another crucial aspect of the disorder is the presence of premonitory urges: uncomfortable sensations that typically precede tics and are temporarily alleviated by tics. We review the evidence implicating the somatosensory cortices and the insula in premonitory urges and the motor cortico-basal ganglia-thalamo-cortical loop in tics. We consider how these regions interact during tic execution, suggesting that the insula plays an important role as a nexus linking the sensory and emotional character of premonitory urges with their translation into tics. We also consider how these regions interact during tic learning, integrating the neural evidence with a computational perspective on how premonitory-urge alleviation reinforces tics.
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35
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Maia TV, Conceição VA. The Roles of Phasic and Tonic Dopamine in Tic Learning and Expression. Biol Psychiatry 2017; 82:401-412. [PMID: 28734459 DOI: 10.1016/j.biopsych.2017.05.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/08/2017] [Accepted: 05/28/2017] [Indexed: 01/26/2023]
Abstract
Tourette syndrome (TS) prominently involves dopaminergic disturbances, but the precise nature of those disturbances has remained elusive. A substantial body of empirical work and recent computational models have characterized the specific roles of phasic and tonic dopamine (DA) in action learning and selection, respectively. Using insights from this work and models, we suggest that TS involves increases in both phasic and tonic DA, which produce increased propensities for tic learning and expression, respectively. We review the evidence from reinforcement-learning and habit-learning studies in TS, which supports the idea that TS involves increased phasic DA responses; we also review the evidence that tics engage the habit-learning circuitry. On the basis of these findings, we suggest that tics are exaggerated, maladaptive, and persistent motor habits reinforced by aberrant, increased phasic DA responses. Increased tonic DA amplifies the tendency to execute learned tics and also provides a fertile ground of motor hyperactivity for tic learning. We review evidence suggesting that antipsychotics may counter both the increased propensity for tic expression, by increasing excitability in the indirect pathway, and the increased propensity for tic learning, by shifting plasticity in the indirect pathway toward long-term potentiation (and possibly also through more complex mechanisms). Finally, we review evidence suggesting that low doses of DA agonists that effectively treat TS decrease both phasic and tonic DA, thereby also reducing the propensity for both tic learning and tic expression, respectively.
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Affiliation(s)
- Tiago V Maia
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
| | - Vasco A Conceição
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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Is procedural memory enhanced in Tourette syndrome? Evidence from a sequence learning task. Cortex 2017; 100:84-94. [PMID: 28964503 DOI: 10.1016/j.cortex.2017.08.037] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 06/12/2017] [Accepted: 08/30/2017] [Indexed: 11/20/2022]
Abstract
Procedural memory, which is rooted in the basal ganglia, underlies the learning and processing of numerous automatized motor and cognitive skills, including in language. Not surprisingly, disorders with basal ganglia abnormalities have been found to show impairments of procedural memory. However, brain abnormalities could also lead to atypically enhanced function. Tourette syndrome (TS) is a candidate for enhanced procedural memory, given previous findings of enhanced TS processing of grammar, which likely depends on procedural memory. We comprehensively examined procedural learning, from memory formation to retention, in children with TS and typically developing (TD) children, who performed an implicit sequence learning task over two days. The children with TS showed sequence learning advantages on both days, despite a regression of sequence knowledge overnight to the level of the TD children. This is the first demonstration of procedural learning advantages in any disorder. The findings may further our understanding of procedural memory and its enhancement. The evidence presented here, together with previous findings suggesting enhanced grammar processing in TS, underscore the dependence of language on a system that also subserves visuomotor sequencing.
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Salvador A, Worbe Y, Delorme C, Coricelli G, Gaillard R, Robbins TW, Hartmann A, Palminteri S. Specific effect of a dopamine partial agonist on counterfactual learning: evidence from Gilles de la Tourette syndrome. Sci Rep 2017; 7:6292. [PMID: 28740149 PMCID: PMC5524760 DOI: 10.1038/s41598-017-06547-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 06/15/2017] [Indexed: 11/09/2022] Open
Abstract
The dopamine partial agonist aripiprazole is increasingly used to treat pathologies for which other antipsychotics are indicated because it displays fewer side effects, such as sedation and depression-like symptoms, than other dopamine receptor antagonists. Previously, we showed that aripiprazole may protect motivational function by preserving reinforcement-related signals used to sustain reward-maximization. However, the effect of aripiprazole on more cognitive facets of human reinforcement learning, such as learning from the forgone outcomes of alternative courses of action (i.e., counterfactual learning), is unknown. To test the influence of aripiprazole on counterfactual learning, we administered a reinforcement learning task that involves both direct learning from obtained outcomes and indirect learning from forgone outcomes to two groups of Gilles de la Tourette (GTS) patients, one consisting of patients who were completely unmedicated and the other consisting of patients who were receiving aripiprazole monotherapy, and to healthy subjects. We found that whereas learning performance improved in the presence of counterfactual feedback in both healthy controls and unmedicated GTS patients, this was not the case in aripiprazole-medicated GTS patients. Our results suggest that whereas aripiprazole preserves direct learning of action-outcome associations, it may impair more complex inferential processes, such as counterfactual learning from forgone outcomes, in GTS patients treated with this medication.
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Affiliation(s)
- Alexandre Salvador
- Laboratoire de Neurosciences Cognitives, Institut National de la Santé et de la Recherche Médicale, Paris, France.,Centre de Psychiatrie et Neuroscience, Hôpital Sainte Anne, Paris, France
| | - Yulia Worbe
- National Reference Centre for Gilles de la Tourette Syndrome, Department of Neurology, Institut du Cerveau et de la Moelle Epinière, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Cécile Delorme
- National Reference Centre for Gilles de la Tourette Syndrome, Department of Neurology, Institut du Cerveau et de la Moelle Epinière, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Giorgio Coricelli
- Department of Economics, University of Southern California, California, USA
| | - Raphaël Gaillard
- Centre de Psychiatrie et Neuroscience, Hôpital Sainte Anne, Paris, France
| | - Trevor W Robbins
- Department of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
| | - Andreas Hartmann
- National Reference Centre for Gilles de la Tourette Syndrome, Department of Neurology, Institut du Cerveau et de la Moelle Epinière, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Stefano Palminteri
- Laboratoire de Neurosciences Cognitives, Institut National de la Santé et de la Recherche Médicale, Paris, France. .,Departement d'Études Cognitives, École Normale Supérieure, Paris, France. .,Institut d'Études de la Cognition, Université de Recherche Paris Sciences et Lettres, Paris, France.
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Kanaan AS, Gerasch S, García-García I, Lampe L, Pampel A, Anwander A, Near J, Möller HE, Müller-Vahl K. Pathological glutamatergic neurotransmission in Gilles de la Tourette syndrome. Brain 2016; 140:218-234. [DOI: 10.1093/brain/aww285] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/31/2016] [Accepted: 09/12/2016] [Indexed: 11/13/2022] Open
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Dye CD, Walenski M, Mostofsky SH, Ullman MT. A verbal strength in children with Tourette syndrome? Evidence from a non-word repetition task. BRAIN AND LANGUAGE 2016; 160:61-70. [PMID: 27479738 DOI: 10.1016/j.bandl.2016.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 06/06/2016] [Accepted: 07/17/2016] [Indexed: 06/06/2023]
Abstract
Tourette syndrome (TS) is characterized by motor and vocal tics, and frontal/basal-ganglia abnormalities. Whereas cognitive strengths have been found in other neurodevelopmental disorders, less attention has been paid to strengths in TS, or to verbal strengths in any neurodevelopmental disorder. We examined whether the finding of speeded TS production of rule-governed morphological forms (e.g., "slipped") that involve composition (Walenski, Mostofsky, & Ullman, 2007) might extend to another language domain, phonology. Thirteen children with TS and 14 typically-developing (TD) children performed a non-word repetition task: they repeated legal phonological strings (e.g.,"naichovabe"), a task that taps rule-governed (de)composition. Parallel to the morphology findings, the children with TS showed speeded production, while the two groups had similar accuracy. The results were not explained by potentially confounding factors, including IQ. Overall, the findings suggest that rule-governed grammatical composition may be speeded in TS, perhaps due to frontal/basal-ganglia abnormalities.
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Affiliation(s)
- Cristina D Dye
- Centre for Research in Linguistics and Language Sciences, Newcastle University, United Kingdom.
| | - Matthew Walenski
- The Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, Northwestern University, United States
| | | | - Michael T Ullman
- Brain and Language Lab, Department of Neuroscience, Georgetown University, United States.
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Palminteri S, Kilford EJ, Coricelli G, Blakemore SJ. The Computational Development of Reinforcement Learning during Adolescence. PLoS Comput Biol 2016; 12:e1004953. [PMID: 27322574 PMCID: PMC4920542 DOI: 10.1371/journal.pcbi.1004953] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 04/29/2016] [Indexed: 11/19/2022] Open
Abstract
Adolescence is a period of life characterised by changes in learning and decision-making. Learning and decision-making do not rely on a unitary system, but instead require the coordination of different cognitive processes that can be mathematically formalised as dissociable computational modules. Here, we aimed to trace the developmental time-course of the computational modules responsible for learning from reward or punishment, and learning from counterfactual feedback. Adolescents and adults carried out a novel reinforcement learning paradigm in which participants learned the association between cues and probabilistic outcomes, where the outcomes differed in valence (reward versus punishment) and feedback was either partial or complete (either the outcome of the chosen option only, or the outcomes of both the chosen and unchosen option, were displayed). Computational strategies changed during development: whereas adolescents’ behaviour was better explained by a basic reinforcement learning algorithm, adults’ behaviour integrated increasingly complex computational features, namely a counterfactual learning module (enabling enhanced performance in the presence of complete feedback) and a value contextualisation module (enabling symmetrical reward and punishment learning). Unlike adults, adolescent performance did not benefit from counterfactual (complete) feedback. In addition, while adults learned symmetrically from both reward and punishment, adolescents learned from reward but were less likely to learn from punishment. This tendency to rely on rewards and not to consider alternative consequences of actions might contribute to our understanding of decision-making in adolescence. We employed a novel learning task to investigate how adolescents and adults learn from reward versus punishment, and to counterfactual feedback about decisions. Computational analyses revealed that adults and adolescents did not implement the same algorithm to solve the learning task. In contrast to adults, adolescents’ performance did not take into account counterfactual information; adolescents also learned preferentially to seek rewards rather than to avoid punishments, whereas adults learned to seek and avoid both equally. Increasing our understanding of computational changes in reinforcement learning during adolescence may provide insights into adolescent value-based decision-making. Our results might also have implications for education, since they suggest that adolescents benefit more from positive feedback than from negative feedback in learning tasks.
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Affiliation(s)
- Stefano Palminteri
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
- Laboratoire de Neurosciences Cognitive, École Normale Supérieure, Paris, France
- * E-mail:
| | - Emma J. Kilford
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
| | - Giorgio Coricelli
- Interdepartmental Centre for Mind/Brain Sciences, Università degli Studi di Trento, Trento, Italy
- Department of Economics, University of Southern California, Los Angeles, California, United States of America
| | - Sarah-Jayne Blakemore
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
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41
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Mosberger AC, de Clauser L, Kasper H, Schwab ME. Motivational state, reward value, and Pavlovian cues differentially affect skilled forelimb grasping in rats. ACTA ACUST UNITED AC 2016; 23:289-302. [PMID: 27194796 PMCID: PMC4880147 DOI: 10.1101/lm.039537.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 03/21/2016] [Indexed: 12/01/2022]
Abstract
Motor skills represent high-precision movements performed at optimal speed and accuracy. Such motor skills are learned with practice over time. Besides practice, effects of motivation have also been shown to influence speed and accuracy of movements, suggesting that fast movements are performed to maximize gained reward over time as noted in previous studies. In rodents, skilled motor performance has been successfully modeled with the skilled grasping task, in which animals use their forepaw to grasp for sugar pellet rewards through a narrow window. Using sugar pellets, the skilled grasping task is inherently tied to motivation processes. In the present study, we performed three experiments modulating animals’ motivation during skilled grasping by changing the motivational state, presenting different reward value ratios, and displaying Pavlovian stimuli. We found in all three studies that motivation affected the speed of skilled grasping movements, with the strongest effects seen due to motivational state and reward value. Furthermore, accuracy of the movement, measured in success rate, showed a strong dependence on motivational state as well. Pavlovian cues had only minor effects on skilled grasping, but results indicate an inverse Pavlovian-instrumental transfer effect on movement speed. These findings have broad implications considering the increasing use of skilled grasping in studies of motor system structure, function, and recovery after injuries.
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Affiliation(s)
- Alice C Mosberger
- Brain Research Institute, University of Zurich, Switzerland; Department of Health Sciences and Technology, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Larissa de Clauser
- Brain Research Institute, University of Zurich, Switzerland; Department of Health Sciences and Technology, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Hansjörg Kasper
- Brain Research Institute, University of Zurich, Switzerland; Department of Health Sciences and Technology, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Martin E Schwab
- Brain Research Institute, University of Zurich, Switzerland; Department of Health Sciences and Technology, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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42
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Shephard E, Jackson GM, Groom MJ. Electrophysiological correlates of reinforcement learning in young people with Tourette syndrome with and without co-occurring ADHD symptoms. Int J Dev Neurosci 2016; 51:17-27. [PMID: 27103231 DOI: 10.1016/j.ijdevneu.2016.04.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 04/14/2016] [Indexed: 01/28/2023] Open
Abstract
Altered reinforcement learning is implicated in the causes of Tourette syndrome (TS) and attention-deficit/hyperactivity disorder (ADHD). TS and ADHD frequently co-occur but how this affects reinforcement learning has not been investigated. We examined the ability of young people with TS (n=18), TS+ADHD (N=17), ADHD (n=13) and typically developing controls (n=20) to learn and reverse stimulus-response (S-R) associations based on positive and negative reinforcement feedback. We used a 2 (TS-yes, TS-no)×2 (ADHD-yes, ADHD-no) factorial design to assess the effects of TS, ADHD, and their interaction on behavioural (accuracy, RT) and event-related potential (stimulus-locked P3, feedback-locked P2, feedback-related negativity, FRN) indices of learning and reversing the S-R associations. TS was associated with intact learning and reversal performance and largely typical ERP amplitudes. ADHD was associated with lower accuracy during S-R learning and impaired reversal learning (significantly reduced accuracy and a trend for smaller P3 amplitude). The results indicate that co-occurring ADHD symptoms impair reversal learning in TS+ADHD. The implications of these findings for behavioural tic therapies are discussed.
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Affiliation(s)
- Elizabeth Shephard
- MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, & Neuroscience (IoPPN), King's College London, 16 De Crespigny Park, Denmark Hill, London, SE5 8AF, UK.
| | - Georgina M Jackson
- Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.
| | - Madeleine J Groom
- Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.
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43
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Shephard E, Jackson GM, Groom MJ. WITHDRAWN: Electrophysiological correlates of reinforcement learning in young people with Tourette syndrome with and without co-occurring ADHD symptoms. Int J Dev Neurosci 2016:S0736-5748(15)30159-3. [PMID: 27103230 DOI: 10.1016/j.ijdevneu.2016.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 04/15/2016] [Accepted: 04/16/2016] [Indexed: 11/27/2022] Open
Abstract
The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.ijdevneu.2016.04.006. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Elizabeth Shephard
- MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, & Neuroscience (IoPPN), King's College London, 16 De Crespigny Park, Denmark Hill, London SE5 8AF, UK.
| | - Georgina M Jackson
- Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham NG7 2TU, UK.
| | - Madeleine J Groom
- Division of Psychiatry and Applied Psychology, Institute of Mental Health, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham NG7 2TU, UK.
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44
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Brandt VC, Patalay P, Bäumer T, Brass M, Münchau A. Tics as a model of over‐learned behavior—imitation and inhibition of facial tics. Mov Disord 2016; 31:1155-62. [DOI: 10.1002/mds.26607] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 01/31/2016] [Accepted: 02/15/2016] [Indexed: 02/02/2023] Open
Affiliation(s)
- Valerie Cathérine Brandt
- Department of Paediatric and Adult Movement Disorders and Neuropsychiatry, Institute of NeurogeneticsUniversity of LübeckLübeck Germany
| | - Praveetha Patalay
- Department of Clinical, Educational and Health PsychologyUniversity College LondonLondon UK
| | - Tobias Bäumer
- Department of Paediatric and Adult Movement Disorders and Neuropsychiatry, Institute of NeurogeneticsUniversity of LübeckLübeck Germany
| | - Marcel Brass
- Department of Experimental PsychologyGhent UniversityGent Belgium
| | - Alexander Münchau
- Department of Paediatric and Adult Movement Disorders and Neuropsychiatry, Institute of NeurogeneticsUniversity of LübeckLübeck Germany
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45
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Abstract
Choice behavior requires weighing multiple decision variables, such as utility, uncertainty, delay, or effort, that combine to define a subjective value for each considered option or course of action. This capacity is based on prior learning about potential rewards (and punishments) that result from prior actions. When made in a social context, decisions can involve strategic thinking about the intentions of others and about the impact of others' behavior on one's own outcome. Valuation is also influenced by different emotions that serve to adaptively regulate our choices in order to, for example, stay away from excessively risky gambles, prevent future regrets, or avoid personal rejection or conflicts. Drawing on economic theory and on advances in the study of neuronal mechanisms, we review relevant recent experiments in nonhuman primates and clinical observations made in neurologically impaired patients suffering from impaired decision-making capacities.
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46
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Emotion and reward are dissociable from error during motor learning. Exp Brain Res 2016; 234:1385-94. [DOI: 10.1007/s00221-015-4542-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 12/21/2015] [Indexed: 10/22/2022]
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47
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Pedroarena-Leal N, Ruge D. Cerebellar neurophysiology in Gilles de la Tourette syndrome and its role as a target for therapeutic intervention. J Neuropsychol 2015; 11:327-346. [DOI: 10.1111/jnp.12091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 10/07/2015] [Indexed: 01/01/2023]
Affiliation(s)
- Nicole Pedroarena-Leal
- Sobell Department of Motor Neuroscience and Movement Disorders; UCL-Institute of Neurology; University College London; UK
| | - Diane Ruge
- Sobell Department of Motor Neuroscience and Movement Disorders; UCL-Institute of Neurology; University College London; UK
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Delorme C, Salvador A, Valabrègue R, Roze E, Palminteri S, Vidailhet M, de Wit S, Robbins T, Hartmann A, Worbe Y. Enhanced habit formation in Gilles de la Tourette syndrome. Brain 2015; 139:605-15. [DOI: 10.1093/brain/awv307] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/01/2015] [Indexed: 12/31/2022] Open
Abstract
Abstract
Tics are sometimes described as voluntary movements performed in an automatic or habitual way. Here, we addressed the question of balance between goal-directed and habitual behavioural control in Gilles de la Tourette syndrome and formally tested the hypothesis of enhanced habit formation in these patients. To this aim, we administered a three-stage instrumental learning paradigm to 17 unmedicated and 17 antipsychotic-medicated patients with Gilles de la Tourette syndrome and matched controls. In the first stage of the task, participants learned stimulus-response-outcome associations. The subsequent outcome devaluation and ‘slip-of-action’ tests allowed evaluation of the participants’ capacity to flexibly adjust their behaviour to changes in action outcome value. In this task, unmedicated patients relied predominantly on habitual, outcome-insensitive behavioural control. Moreover, in these patients, the engagement in habitual responses correlated with more severe tics. Medicated patients performed at an intermediate level between unmedicated patients and controls. Using diffusion tensor imaging on a subset of patients, we also addressed whether the engagement in habitual responding was related to structural connectivity within cortico-striatal networks. We showed that engagement in habitual behaviour in patients with Gilles de la Tourette syndrome correlated with greater structural connectivity within the right motor cortico-striatal network. In unmedicated patients, stronger structural connectivity of the supplementary motor cortex with the sensorimotor putamen predicted more severe tics. Overall, our results indicate enhanced habit formation in unmedicated patients with Gilles de la Tourette syndrome. Aberrant reinforcement signals to the sensorimotor striatum may be fundamental for the formation of stimulus-response associations and may contribute to the habitual behaviour and tics of this syndrome.
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Affiliation(s)
- Cécile Delorme
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
- Assistance Publique-Hôpitaux de Paris, Department of Neurology, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
| | - Alexandre Salvador
- Centre de Psychiatrie et Neuroscience - INSERM U894, 2 ter Rue d'Alésia – Paris, France
- Laboratoire de Neurosciences Cognitives, Ecole Normale Supérieure, 29 rue d’Ulm, Paris, France
| | - Romain Valabrègue
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
- Centre de NeuroImagerie de Recherche (CENIR), Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
| | - Emmanuel Roze
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
- Assistance Publique-Hôpitaux de Paris, Department of Neurology, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
| | - Stefano Palminteri
- Centre de Psychiatrie et Neuroscience - INSERM U894, 2 ter Rue d'Alésia – Paris, France
- Institute of Cognitive Neuroscience, Alexandra House 17 Queen Square, London, UK
| | - Marie Vidailhet
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
- Assistance Publique-Hôpitaux de Paris, Department of Neurology, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
| | - Sanne de Wit
- Department of Psychology, University of Amsterdam, 1018 WB Amsterdam, The Netherlands
| | - Trevor Robbins
- Department of Psychology, University of Cambridge, Cambridge, UK
| | - Andreas Hartmann
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
- Assistance Publique-Hôpitaux de Paris, Department of Neurology, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
- French Reference Centre for Gilles de la Tourette Syndrome, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
| | - Yulia Worbe
- Sorbonne Universités, UPMC Univ Paris 06, UMR S 975, CNRS UMR 7225, ICM, Paris, France
- Assistance Publique-Hôpitaux de Paris, Department of Neurology, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
- French Reference Centre for Gilles de la Tourette Syndrome, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’Hôpital, Paris, France
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Gray’s revised Reinforcement Sensitivity Theory in relation to Attention-Deficit/Hyperactivity and Tourette-like behaviors in the general population. PERSONALITY AND INDIVIDUAL DIFFERENCES 2015. [DOI: 10.1016/j.paid.2015.01.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Gallea C, Balas M, Bertasi E, Valabregue R, García-Lorenzo D, Coynel D, Bonnet C, Grabli D, Pélégrini-Issac M, Doyon J, Benali H, Roze E, Vidailhet M, Lehericy S. Increased cortico-striatal connectivity during motor practice contributes to the consolidation of motor memory in writer's cramp patients. NEUROIMAGE-CLINICAL 2015; 8:180-92. [PMID: 26106542 PMCID: PMC4473821 DOI: 10.1016/j.nicl.2015.04.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/15/2015] [Accepted: 04/16/2015] [Indexed: 01/19/2023]
Abstract
Sensorimotor representations of movements are created in the sensorimotor network through repeated practice to support successful and effortless performance. Writer's cramp (WC) is a disorder acquired through extensive practice of finger movements, and it is likely associated with the abnormal acquisition of sensorimotor representations. We investigated (i) the activation and connectivity changes in the brain network supporting the acquisition of sensorimotor representations of finger sequences in patients with WC and (ii) the link between these changes and consolidation of motor performance 24 h after the initial practice. Twenty-two patients with WC and 22 age-matched healthy volunteers practiced a complex sequence with the right (pathological) hand during functional MRI recording. Speed and accuracy were measured immediately before and after practice (day 1) and 24 h after practice (day 2). The two groups reached equivalent motor performance on day 1 and day 2. During motor practice, patients with WC had (i) reduced hippocampal activation and hippocampal-striatal functional connectivity; and (ii) overactivation of premotor-striatal areas, whose connectivity correlated with motor performance after consolidation. These results suggest that patients with WC use alternative networks to reach equiperformance in the acquisition of new motor memories.
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Key Words
- BA, Brodmann area
- CD, consolidation dependent
- CV-RT, coefficient of variation for reaction time
- DT1, dual task 1
- DT2, dual task 2
- FA, fractional anisotropy
- FHD, focal hand dystonia
- Focal dystonia
- HV, healthy volunteers
- Hippocampus
- LD, longitudinal diffusivity
- MRI
- Motor cortex
- PD, practice dependent
- PMd, dorsal premotor cortex
- PMv, ventral premotor cortex
- PPI, psychophysiological interaction
- RD, radial diffusivity
- Striatum
- WC, writer's cramp
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Affiliation(s)
- C Gallea
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Centre de Neuroimagerie de Recherche, CENIR, Institut du Cerveau et de la Moelle épinière - ICM, Paris, France
| | - M Balas
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Centre de Neuroimagerie de Recherche, CENIR, Institut du Cerveau et de la Moelle épinière - ICM, Paris, France ; Laboratoire d'Imagerie NeuroFonctionnelle, Université Pierre et Marie Curie (UPMC Univ Paris 6), Inserm U678, Paris, France
| | - E Bertasi
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Centre de Neuroimagerie de Recherche, CENIR, Institut du Cerveau et de la Moelle épinière - ICM, Paris, France
| | - R Valabregue
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France
| | - D García-Lorenzo
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France
| | - D Coynel
- Laboratoire d'Imagerie NeuroFonctionnelle, Université Pierre et Marie Curie (UPMC Univ Paris 6), Inserm U678, Paris, France
| | - C Bonnet
- Fédération de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Paris, France ; Centre d'Investigation Clinique, Groupe Hospitalier Pitié-Salpêtrière, Paris, France ; Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - D Grabli
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Fédération de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Paris, France ; Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - M Pélégrini-Issac
- Laboratoire d'Imagerie NeuroFonctionnelle, Université Pierre et Marie Curie (UPMC Univ Paris 6), Inserm U678, Paris, France
| | - J Doyon
- Unité de Neuroimagerie Fonctionnelle et Département de Psychologie, Université de Montréal, Québec, Canada
| | - H Benali
- Laboratoire d'Imagerie NeuroFonctionnelle, Université Pierre et Marie Curie (UPMC Univ Paris 6), Inserm U678, Paris, France
| | - E Roze
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Fédération de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Paris, France ; Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - M Vidailhet
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Fédération de Neurologie, Groupe Hospitalier Pitié-Salpêtrière, Paris, France ; Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - S Lehericy
- Université Pierre et Marie Curie (UPMC Univ Paris 6), Institut du Cerveau et de la Moelle épinière - ICM, UMR-S975, Inserm, U975, CNRS, UMR 7225, Paris, France ; Centre de Neuroimagerie de Recherche, CENIR, Institut du Cerveau et de la Moelle épinière - ICM, Paris, France ; Groupe Hospitalier Pitié-Salpêtrière, Paris, France
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