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Toro-Hernández FD, Migeot J, Marchant N, Olivares D, Ferrante F, González-Gómez R, González Campo C, Fittipaldi S, Rojas-Costa GM, Moguilner S, Slachevsky A, Chaná Cuevas P, Ibáñez A, Chaigneau S, García AM. Neurocognitive correlates of semantic memory navigation in Parkinson's disease. NPJ Parkinsons Dis 2024; 10:15. [PMID: 38195756 PMCID: PMC10776628 DOI: 10.1038/s41531-024-00630-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 12/29/2023] [Indexed: 01/11/2024] Open
Abstract
Cognitive studies on Parkinson's disease (PD) reveal abnormal semantic processing. Most research, however, fails to indicate which conceptual properties are most affected and capture patients' neurocognitive profiles. Here, we asked persons with PD, healthy controls, and individuals with behavioral variant frontotemporal dementia (bvFTD, as a disease control group) to read concepts (e.g., 'sun') and list their features (e.g., hot). Responses were analyzed in terms of ten word properties (including concreteness, imageability, and semantic variability), used for group-level comparisons, subject-level classification, and brain-behavior correlations. PD (but not bvFTD) patients produced more concrete and imageable words than controls, both patterns being associated with overall cognitive status. PD and bvFTD patients showed reduced semantic variability, an anomaly which predicted semantic inhibition outcomes. Word-property patterns robustly classified PD (but not bvFTD) patients and correlated with disease-specific hypoconnectivity along the sensorimotor and salience networks. Fine-grained semantic assessments, then, can reveal distinct neurocognitive signatures of PD.
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Affiliation(s)
- Felipe Diego Toro-Hernández
- Graduate Program in Neuroscience and Cognition, Federal University of ABC, São Paulo, Brazil
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Joaquín Migeot
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
- Latin American Brain Health Institute, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Nicolás Marchant
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Daniela Olivares
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
- Laboratorio de Neuropsicología y Neurociencias Clínicas, Universidad de Chile, Santiago, Chile
| | - Franco Ferrante
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
- National Scientific and Technical Research Council, Buenos Aires, Argentina
- Facultad de Ingeniería, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Raúl González-Gómez
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
- Latin American Brain Health Institute, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Cecilia González Campo
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
- National Scientific and Technical Research Council, Buenos Aires, Argentina
| | - Sol Fittipaldi
- Latin American Brain Health Institute, Universidad Adolfo Ibáñez, Santiago, Chile
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
- Global Brain Health Institute, University of California, San Francisco, California, USA; & Trinity College, Dublin, Ireland
| | - Gonzalo M Rojas-Costa
- Department of Radiology, Clínica las Condes, Santiago, Chile
- Advanced Epilepsy Center, Clínica las Condes, Santiago, Chile
- Join Unit FISABIO-CIPF, Valencia, Spain
- School of Medicine, Finis Terrae University, Santiago, Chile
- Health Innovation Center, Clínica Las Condes, Santiago, Chile
| | - Sebastian Moguilner
- Global Brain Health Institute, University of California, San Francisco, California, USA; & Trinity College, Dublin, Ireland
| | - Andrea Slachevsky
- Memory and Neuropsychiatric Center (CMYN), Neurology Department, Hospital del Salvador & Faculty of Medicine, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopatology Program - Institute of Biomedical Sciences (ICBM), Neuroscience and East Neuroscience Departments, Faculty of Medicine, University of Chile, Santiago, Chile
- Neurology and Psychiatry Department, Clínica Alemana-Universidad Desarrollo, Santiago, Chile
| | - Pedro Chaná Cuevas
- Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Agustín Ibáñez
- Latin American Brain Health Institute, Universidad Adolfo Ibáñez, Santiago, Chile
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina
- Global Brain Health Institute, University of California, San Francisco, California, USA; & Trinity College, Dublin, Ireland
| | - Sergio Chaigneau
- Center for Social and Cognitive Neuroscience, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
- Center for Cognition Research, School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Adolfo M García
- Latin American Brain Health Institute, Universidad Adolfo Ibáñez, Santiago, Chile.
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina.
- Global Brain Health Institute, University of California, San Francisco, California, USA; & Trinity College, Dublin, Ireland.
- Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile.
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Leimbach F, Atkinson-Clement C, Socorro P, Jahanshahi M. The Effects of Subthalamic Nucleus Deep Brain Stimulation in Parkinson's Disease on Associative Learning of Verbal and Non-Verbal Information by Trial and Error or with Corrective Feedback. JOURNAL OF PARKINSON'S DISEASE 2022; 12:885-896. [PMID: 35342046 DOI: 10.3233/jpd-212843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Parkinson's disease (PD) and subthalamic nucleus deep brain stimulation (STN-DBS) are both known to induce cognitive changes. OBJECTIVE The aim of our study was to investigate the impact of STN-DBS on two forms of conditional associative learning (CAL), trial and error or corrective feedback learning, which differed in difficulty to test the load-dependency hypothesis of the cognitive effects of STN-DBS in PD. METHODS We recruited two groups of PD patients, those who had STN-DBS surgery bilaterally (n = 24) and a second unoperated group (n = 9) who were assessed on two versions of a task of visual CAL involving either a more difficult trial and error learning or a relatively easier corrective feedback learning. Each task was completed twice by both groups, On and Off STN-DBS for the operated group and a first and second time by the unoperated group. RESULTS With STN-DBS Off, corrective feedback learning was superior to trial and error CAL, but not with STN-DBS On. The unoperated PD group had improved performance during the second assessment. To control for the improvement observed with repeated assessment in the PD control group, we split the STN-DBS group into two subgroups based on the condition of the first assessment (Off first vs. On first). While we found no STN-DBS effects for the Off first subgroup (N = 14), we observed improved performance during the second STN-DBS Off session for the On first subgroup (N = 10). CONCLUSION The findings suggest that in PD, STN-DBS interferes with use of corrective feedback and its integration in the conditional associative learning process. Also STN stimulation affected the ability of operated patients to resolve proactive interference during learning of the arbitrary visual associations by trial and error or with corrective feedback.
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Affiliation(s)
- Friederike Leimbach
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Cyril Atkinson-Clement
- Sorbonne University, Inserm U1127, CNRS UMR7225, UM75, ICM, F-75013, Paris, France.,Movement Investigation and Therapeutics Team, Paris, France.,School of Medicine, University of Nottingham, Nottingham, UK
| | - Pieter Socorro
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Marjan Jahanshahi
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK.,The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China
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Tiedt HO, Ehlen F, Klostermann F. Dopamine-Related Reduction of Semantic Spreading Activation in Patients With Parkinson's Disease. Front Hum Neurosci 2022; 16:837122. [PMID: 35431839 PMCID: PMC9008217 DOI: 10.3389/fnhum.2022.837122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/08/2022] [Indexed: 11/13/2022] Open
Abstract
Impaired performance in verbal fluency (VF) tasks is a frequent observation in Parkinson's disease (PD). As to the nature of the underlying cognitive deficit, it is commonly attributed to a frontal-type dysexecutive syndrome due to nigrostriatal dopamine depletion. Whereas dopaminergic medication typically improves VF performance in PD, e.g., by ameliorating impaired lexical switching, its effect on semantic network activation is unclear. Data from priming studies suggest that dopamine causes a faster decay of semantic activation spread. The aim of the current study was to examine the impact of dopaminergic medication on the dynamic change of word frequency during VF performance as a measure of semantic spreading activation. To this end, we performed a median split analysis of word frequency during phonemic and semantic VF task performance in a PD group tested while receiving dopaminergic medication (ON) as well as after drug withdrawal (i.e., OFF), and in a sample of age-matched healthy volunteers (both groups n = 26). Dopaminergic medication in the PD group significantly affected phonemic VF with improved word production as well as increased error-rates. The expected decrease of word frequency during VF task performance was significantly smaller in the PD group ON medication than in healthy volunteers across semantic and phonemic VF. No significant group-difference emerged between controls and the PD group in the OFF condition. The comparison between both treatment conditions within the PD group did not reach statistical significance. The observed pattern of results indicates a faster decay of semantic network activation during lexical access in PD patients on dopaminergic medication. In view of improved word generation, this finding is consistent with a concept of more focused neural activity by an increased signal-to-noise ratio due to dopaminergic neuromodulation. However, the effect of dopaminergic stimulation on VF output suggests a trade-off between these beneficial effects and increased error-rates.
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Affiliation(s)
- Hannes Ole Tiedt
- Department of Neurology, Motor and Cognition Group, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universitätzu Berlin, Berlin, Germany
| | - Felicitas Ehlen
- Department of Neurology, Motor and Cognition Group, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universitätzu Berlin, Berlin, Germany
- Department of Psychiatry, Jüdisches Krankenhaus Berlin, Berlin, Germany
| | - Fabian Klostermann
- Department of Neurology, Motor and Cognition Group, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universitätzu Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
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Hyder R, Højlund A, Jensen M, Johnsen EL, Østergaard K, Shtyrov Y. STN-DBS affects language processing differentially in Parkinson's disease: Multiple-case MEG study. Acta Neurol Scand 2021; 144:132-141. [PMID: 33961289 DOI: 10.1111/ane.13423] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 03/02/2021] [Accepted: 03/10/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVES In this study, we investigated the effects of bilateral and unilateral deep brain stimulation of the subthalamic nucleus (STN-DBS) in PD patients on neural responses associated with two aspects of spoken language processing: semantics of action-related verbs and morphosyntactic processing. MATERIALS AND METHODS Using a passive unattended paradigm to present spoken linguistic stimuli, we recorded magnetoencephalographic (MEG) responses in three PD patients in four DBS conditions: left unilateral STN-DBS, right unilateral STN-DBS, bilateral STN-DBS, and no STN-DBS. To ensure that any observed effects of DBS on the neuromagnetic responses could be attributed to the linguistic context per se and were not merely induced by the electrical stimulation, we assessed the effects of STN-DBS on linguistic contrasts within each stimulation condition. Hence, we contrasted the processing of action vs. abstract verbs as well as the processing of correct vs. incorrect morphosyntactic inflections within each DBS condition. RESULTS The results revealed that, compared to the DBS-off state, both bilateral and right unilateral stimulation of the STN yielded significant dissociations in the processing of action and abstract verbs, with greater neuromagnetic responses for action verbs compared to abstract verbs. For morphosyntax processing, only left unilateral stimulation yielded significant dissociations (relative to the DBS-off state), with greater neuromagnetic responses to the incorrect inflections compared to the correct inflections. CONCLUSION The results reflect differential effects of unilateral and bilateral STN-DBS on neuromagnetic responses associated with the processing of spoken language. They suggest that different specific aspects of linguistic information processing in PD are affected differently by STN-DBS.
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Affiliation(s)
- Rasha Hyder
- Center of Functionally Integrative Neuroscience (CFIN) Department of Clinical Medicine Aarhus University Aarhus Denmark
- Institute of Clinical Neuroscience and Medical Psychology Medical Faculty Heinrich‐Heine University Düsseldorf Germany
| | - Andreas Højlund
- Center of Functionally Integrative Neuroscience (CFIN) Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Mads Jensen
- Center of Functionally Integrative Neuroscience (CFIN) Department of Clinical Medicine Aarhus University Aarhus Denmark
- Research Unit for Robophilosophy and Integrative Social Robotics Interacting Minds Centre Aarhus University Aarhus Denmark
| | - Erik L. Johnsen
- Department of Neurology Aarhus University Hospital Aarhus Denmark
| | - Karen Østergaard
- Department of Neurology Aarhus University Hospital Aarhus Denmark
- Sano Private Hospital Denmark
| | - Yury Shtyrov
- Center of Functionally Integrative Neuroscience (CFIN) Department of Clinical Medicine Aarhus University Aarhus Denmark
- Centre for Cognition and Decision Making Institute for Cognitive Neuroscience HSE University Moscow Russian Federation
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5
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Vos SH, Kessels RPC, Vinke RS, Esselink RAJ, Piai V. The Effect of Deep Brain Stimulation of the Subthalamic Nucleus on Language Function in Parkinson's Disease: A Systematic Review. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:2794-2810. [PMID: 34157249 DOI: 10.1044/2021_jslhr-20-00515] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Purpose This systematic review focuses on the effect of bilateral deep brain stimulation (DBS) of the subthalamic nucleus (STN) on language function in Parkinson's disease (PD). It fills an important gap in recent reviews by considering other language tasks in addition to verbal fluency. Method We critically and systematically reviewed the literature on studies that investigated the effect of bilateral STN-DBS on language function in PD. All studies included a matched PD control group who were on best medical treatment, with language testing at similar baseline and follow-up intervals as the DBS PD group. Results Thirteen identified studies included a form of a verbal fluency task, seven studies included picture naming, and only two studies included more language-oriented tasks. We found that verbal fluency was negatively affected after DBS, whereas picture naming was unaffected. Studies investigating individual change patterns using reliable change indices showed that individual variability is larger for picture naming than for verbal fluency. Conclusions Verbal fluency is the most frequently investigated aspect of language function. Our analysis showed a pattern of decline in verbal fluency across multiple studies after STN-DBS, whereas picture naming was unaffected. Data on more language-oriented tests in a large DBS sample and best medical treatment control group are sparse. The investigation of language function in PD after DBS requires sensitive language tests (with and without time pressure) and experimental designs as used in the studies reviewed here. Reliable change index statistics are a promising tool for investigating individual differences in performance after DBS. Supplemental Material https://doi.org/10.23641/asha.14794458.
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Affiliation(s)
- Sandra H Vos
- Department of Medical Psychology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Roy P C Kessels
- Department of Medical Psychology, Radboud University Medical Center, Nijmegen, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - R Saman Vinke
- Department of Neurosurgery, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Rianne A J Esselink
- Department of Neurology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Vitória Piai
- Department of Medical Psychology, Radboud University Medical Center, Nijmegen, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
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6
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Corticostriatal Regulation of Language Functions. Neuropsychol Rev 2021; 31:472-494. [PMID: 33982264 DOI: 10.1007/s11065-021-09481-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 01/20/2021] [Indexed: 10/21/2022]
Abstract
The role of corticostriatal circuits in language functions is unclear. In this review, we consider evidence from language learning, syntax, and controlled language production and comprehension tasks that implicate various corticostriatal circuits. Converging evidence from neuroimaging in healthy individuals, studies in populations with subcortical dysfunction, pharmacological studies, and brain stimulation suggests a domain-general regulatory role of corticostriatal systems in language operations. The role of corticostriatal systems in language operations identified in this review is likely to reflect a broader function of the striatum in responding to uncertainty and conflict which demands selection, sequencing, and cognitive control. We argue that this role is dynamic and varies depending on the degree and form of cognitive control required, which in turn will recruit particular corticostriatal circuits and components organised in a cognitive hierarchy.
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Ehlen F, Al-Fatly B, Kühn AA, Klostermann F. Impact of deep brain stimulation of the subthalamic nucleus on natural language in patients with Parkinson's disease. PLoS One 2020; 15:e0244148. [PMID: 33373418 PMCID: PMC7771859 DOI: 10.1371/journal.pone.0244148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 12/03/2020] [Indexed: 12/30/2022] Open
Abstract
Background In addition to the typical motor symptoms, a majority of patients suffering from Parkinson’s disease experience language impairments. Deep Brain Stimulation of the subthalamic nucleus robustly reduces motor dysfunction, but its impact on language skills remains ambiguous. Method To elucidate the impact of subthalamic deep brain stimulation on natural language production, we systematically analyzed language samples from fourteen individuals (three female / eleven male, average age 66.43 ± 7.53 years) with Parkinson’s disease in the active (ON) versus inactive (OFF) stimulation condition. Significant ON-OFF differences were considered as stimulation effects. To localize their neuroanatomical origin within the subthalamic nucleus, they were correlated with the volume of tissue activated by therapeutic stimulation. Results Word and clause production speed increased significantly under active stimulation. These enhancements correlated with the volume of tissue activated within the associative part of the subthalamic nucleus, but not with that within the dorsolateral motor part, which again correlated with motor improvement. Language error rates were lower in the ON vs. OFF condition, but did not correlate with electrode localization. No significant changes in further semantic or syntactic language features were detected in the current study. Conclusion The findings point towards a facilitation of executive language functions occurring rather independently from motor improvement. Given the presumed origin of this stimulation effect within the associative part of the subthalamic nucleus, this could be due to co-stimulation of the prefrontal-subthalamic circuit.
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Affiliation(s)
- Felicitas Ehlen
- Department of Neurology, Humboldt-Universität zu Berlin and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Psychiatry and Psychotherapy, Jüdisches Krankenhaus Berlin, Berlin, Germany
- * E-mail:
| | - Bassam Al-Fatly
- Department of Neurology, Humboldt-Universität zu Berlin and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Andrea A. Kühn
- Department of Neurology, Humboldt-Universität zu Berlin and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
- Neurocure Cluster of Excellence, Humboldt-Universität zu Berlin and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Bernstein Center for Computational Neuroscience, Humboldt-Universität zu Berlin and Berlin Institute of Health, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen, Berlin, Germany
| | - Fabian Klostermann
- Department of Neurology, Humboldt-Universität zu Berlin and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
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David FJ, Munoz MJ, Corcos DM. The effect of STN DBS on modulating brain oscillations: consequences for motor and cognitive behavior. Exp Brain Res 2020; 238:1659-1676. [PMID: 32494849 PMCID: PMC7415701 DOI: 10.1007/s00221-020-05834-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 05/15/2020] [Indexed: 12/11/2022]
Abstract
In this review, we highlight Professor John Rothwell's contribution towards understanding basal ganglia function and dysfunction, as well as the effects of subthalamic nucleus deep brain stimulation (STN DBS). The first section summarizes the rate and oscillatory models of basal ganglia dysfunction with a focus on the oscillation model. The second section summarizes the motor, gait, and cognitive mechanisms of action of STN DBS. In the final section, we summarize the effects of STN DBS on motor and cognitive tasks. The studies reviewed in this section support the conclusion that high-frequency STN DBS improves the motor symptoms of Parkinson's disease. With respect to cognition, STN DBS can be detrimental to performance especially when the task is cognitively demanding. Consolidating findings from many studies, we find that while motor network oscillatory activity is primarily correlated to the beta-band, cognitive network oscillatory activity is not confined to one band but is subserved by activity in multiple frequency bands. Because of these findings, we propose a modified motor and associative/cognitive oscillatory model that can explain the consistent positive motor benefits and the negative and null cognitive effects of STN DBS. This is clinically relevant because STN DBS should enhance oscillatory activity that is related to both motor and cognitive networks to improve both motor and cognitive performance.
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Affiliation(s)
- Fabian J David
- Department of Physical Therapy and Human Movement Sciences, Northwestern University, 645 North Michigan Avenue, Suite 1100, Chicago, IL, 60611, USA.
| | - Miranda J Munoz
- Department of Physical Therapy and Human Movement Sciences, Northwestern University, 645 North Michigan Avenue, Suite 1100, Chicago, IL, 60611, USA
| | - Daniel M Corcos
- Department of Physical Therapy and Human Movement Sciences, Northwestern University, 645 North Michigan Avenue, Suite 1100, Chicago, IL, 60611, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
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Avecillas-Chasin JM, Alonso-Frech F, Nombela C, Villanueva C, Barcia JA. Stimulation of the Tractography-Defined Subthalamic Nucleus Regions Correlates With Clinical Outcomes. Neurosurgery 2019; 85:E294-E303. [DOI: 10.1093/neuros/nyy633] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 12/27/2018] [Indexed: 01/12/2023] Open
Abstract
Abstract
BACKGROUND
Although deep brain stimulation (DBS) of the dorsolateral subthalamic nucleus (STN) is a well-established surgical treatment for patients with Parkinson disease (PD), there is still controversy about the relationship between the functional segregation of the STN and clinical outcomes.
OBJECTIVE
To correlate motor and neuropsychological (NPS) outcomes with the overlap between the volume of activated tissue (VAT) and the tractography-defined regions within the STN.
METHODS
Retrospective study evaluating 13 patients with PD treated with STN-DBS. With the aid of tractography, the STN was segmented into 4 regions: smaSTN (supplementary motor area STN), m1STN (primary motor area STN), mSTN (the sum of the m1STN and the smaSTN segments), and nmSTN (non-motor STN). We computed the overlap coefficients between these STN regions and the patient-specific VAT. The VAT outside of the STN was also calculated. These coefficients were then correlated with motor (Unified Parkinson's Disease Rating Scale, UPDRS III) and NPS outcomes.
RESULTS
Stimulation of the mSTN segment was significantly correlated with UPDRS III and bradykinesia improvement. Stimulation of the smaSTN segment, but not the m1STN one, had a positive correlation with bradykinesia improvement. Stimulation of the nmSTN segment was negatively correlated with the improvement in rigidity. Stimulation outside of the STN was correlated with some beneficial NPS effects.
CONCLUSION
Stimulation of the tractography-defined motor STN, mainly the smaSTN segment, is positively correlated with motor outcomes, whereas stimulation of the nmSTN is correlated with poor motor outcomes. Further validation of these results might help individualize and optimize targets prior to STN-DBS.
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Affiliation(s)
| | - Fernando Alonso-Frech
- Department of Neurology, Institute of Neurosciences, Hospital Clínico San Carlos, Madrid, Spain
| | - Cristina Nombela
- Department of Neurosurgery, Instituto de Investigación Sanitaria San Carlos, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Clara Villanueva
- Department of Neurology, Institute of Neurosciences, Hospital Clínico San Carlos, Madrid, Spain
| | - Juan A Barcia
- Department of Neurosurgery, Instituto de Investigación Sanitaria San Carlos, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
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Isaacs ML, McMahon KL, Angwin AJ, Crosson B, Copland DA. Functional correlates of strategy formation and verbal suppression in Parkinson's disease. NEUROIMAGE-CLINICAL 2019; 22:101683. [PMID: 30711682 PMCID: PMC6360608 DOI: 10.1016/j.nicl.2019.101683] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 01/06/2019] [Accepted: 01/20/2019] [Indexed: 11/25/2022]
Abstract
Individuals with Parkinson's disease (PD) have shown impaired performance on the verbal suppression component of the Haylings Sentence Completion Test (HSCT). The present study aimed to determine whether this performance related to (i) the inability to suppress a pre-potent response or (ii) difficulty in the generation of a strategy to facilitate task execution. The study adopted a novel variation of the HSCT that isolated each process and employed fMRI to examine the associated neural correlates in a comparison of individuals with PD and matched healthy controls. No significant behavioral differences were detected between these two groups. However, fMRI results revealed atypical underlying neural activity in the PD group. Controls exhibited increased activation in the left dorsolateral prefrontal cortex and striatum when generating a response independently, relative to generation when a supporting strategy was provided. The PD group demonstrated the opposite pattern of activation, in addition to greater recruitment of right hemisphere regions. This pattern of activation was postulated to be evidence of compensatory mechanisms, acting to bolster the output of frontostriatal circuits compromised by disease pathology. Verbal suppression and strategy generation was similar in PD and control groups. Behavioral performance was subserved by atypical frontostriatal activity in PD. Compensatory neural mechanisms may preserve behaviour in early disease stages.
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Affiliation(s)
- Megan L Isaacs
- The University of Queensland Center for Clinical Research, Royal Brisbane and Women's Hospital, Herston, QLD 4029, Australia; Center for Advanced Imaging, University of Queensland, St Lucia, QLD 4072, Australia; School of Health and Rehabilitation Sciences, University of Queensland, St Lucia, QLD 4072, Australia.
| | - Katie L McMahon
- Center for Advanced Imaging, University of Queensland, St Lucia, QLD 4072, Australia
| | - Anthony J Angwin
- School of Health and Rehabilitation Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Bruce Crosson
- Center for Visual and Neurocognitive Rehabilitation, Veterans' Affairs Medical Center, Decatur, GA 30033, United States; Departments of Neurology and Radiology, Emory University, Atlanta, GA 30329, United States; Department of Psychology, Georgia State University, Atlanta, GA 30302, United States
| | - David A Copland
- The University of Queensland Center for Clinical Research, Royal Brisbane and Women's Hospital, Herston, QLD 4029, Australia; School of Health and Rehabilitation Sciences, University of Queensland, St Lucia, QLD 4072, Australia
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Mehanna R, Bajwa JA, Fernandez H, Wagle Shukla AA. Cognitive Impact of Deep Brain Stimulation on Parkinson's Disease Patients. PARKINSON'S DISEASE 2017; 2017:3085140. [PMID: 29359065 PMCID: PMC5735627 DOI: 10.1155/2017/3085140] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/15/2017] [Accepted: 10/16/2017] [Indexed: 11/17/2022]
Abstract
Subthalamic nucleus (STN) or globus pallidus interna (GPi) deep brain stimulation (DBS) is considered a robust therapeutic tool in the treatment of Parkinson's disease (PD) patients, although it has been reported to potentially cause cognitive decline in some cases. We here provide an in-depth and critical review of the current literature regarding cognition after DBS in PD, summarizing the available data on the impact of STN and GPi DBS as monotherapies and also comparative data across these two therapies on 7 cognitive domains. We provide evidence that, in appropriately screened PD patients, worsening of one or more cognitive functions is rare and subtle after DBS, without negative impact on quality of life, and that there is very little data supporting that STN DBS has a worse cognitive outcome than GPi DBS.
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Affiliation(s)
- Raja Mehanna
- University of Texas Health Science Center, Houston, TX, USA
| | - Jawad A. Bajwa
- Parkinson's, Movement Disorders and Neurorestoration Program, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Hubert Fernandez
- Center for Neurological Restoration, Cleveland Clinic, Cleveland, OH, USA
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Zimmermann N, Cardoso CDO, Kristensen CH, Fonseca RP. Brazilian norms and effects of age and education on the Hayling and Trail Making Tests. TRENDS IN PSYCHIATRY AND PSYCHOTHERAPY 2017; 39:188-195. [DOI: 10.1590/2237-6089-2016-0082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/20/2017] [Indexed: 11/22/2022]
Abstract
Abstract Objectives To describe normative data for the Hayling Test and the Trail Making Test (TMT) in a sample of Brazilian adults, and to investigate the effects of age and education on test performance. Method A total of 313 (TMT) and 364 (Hayling) individuals with age ranges of 19-39, 40-59, and 60-75 years, and with at least 5 years of formal education, participated in this study. The tests were administered as part of a large battery of a normative project. Individuals were evaluated individually in silent, ventilated rooms at a university clinic. Instrument protocols were scored by trained research assistants and double-checked to ensure data reliability. Results There were major effects of age on the TMT (Time B, Errors B, B-A) and on the Hayling Test (Errors B/15, B/45), and major effects of education on the TMT (Time B, Errors B, B-A) and on the Hayling Test (Time A, Errors B/15, B/45). Interaction effects were found in Time B and B-A for the Hayling Test and in Time A for the TMT. Conclusions Age and education were critical for performance on both verbal and non-verbal executive functions.
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Martyr A, Boycheva E, Kudlicka A. Assessing inhibitory control in early-stage Alzheimer's and Parkinson's disease using the Hayling Sentence Completion Test. J Neuropsychol 2017. [DOI: 10.1111/jnp.12129] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anthony Martyr
- School of Psychology; University of Exeter; UK
- PenCLAHRC; Institute of Health Research; University of Exeter Medical School; UK
| | - Elina Boycheva
- Clinical Research Unit; University Hospital “12 de Octubre”; Madrid Spain
| | - Aleksandra Kudlicka
- School of Psychology; University of Exeter; UK
- PenCLAHRC; Institute of Health Research; University of Exeter Medical School; UK
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Batens K, De Letter M, Raedt R, Duyck W, Vanhoutte S, Van Roost D, Santens P. Subthalamic nucleus stimulation and spontaneous language production in Parkinson's disease: A double laterality problem. BRAIN AND LANGUAGE 2015; 147:76-84. [PMID: 26099950 DOI: 10.1016/j.bandl.2015.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 05/19/2015] [Accepted: 06/01/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Asymmetric degeneration of dopaminergic neurons, are characteristic for Parkinson's disease (PD). Despite the lateralized representation of language, the correlation of asymmetric degeneration of nigrostriatal networks in PD with language performance has scarcely been examined. OBJECTIVE/HYPOTHESIS The laterality of dopamine depletion influences language deficits in PD and thus modulates the effects of subthalamic nucleus (STN) stimulation on language production. METHODS The spontaneous language production of patients with predominant dopamine depletion of the left (PD-left) and right (PD-right) hemisphere was compared in four stimulation conditions. RESULTS PD-right made comparatively more verb inflection errors than PD-left. Bilateral STN stimulation improves spontaneous language production only for PD-left. CONCLUSIONS The laterality of dopamine depletion influences spontaneous language production and the effect of STN stimulation on linguistic functions. However, it is probably only one of the many variables influencing the effect of STN stimulation on language production.
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Affiliation(s)
- Katja Batens
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium.
| | - Miet De Letter
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium; Department of Speech, Language and Hearing Sciences, Ghent University, De Pintelaan 185, B-9000 Ghent, Belgium
| | - Robrecht Raedt
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium; Department of Internal Medicine, Neurology, Ghent University, De Pintelaan 185, B-9000 Ghent, Belgium
| | - Wouter Duyck
- Faculty of Psychology and Educational Sciences, Department of Experimental Psychology, Ghent University, Henri Dunantlaan 2, B-9000 Ghent, Belgium
| | - Sarah Vanhoutte
- Department of Internal Medicine, Neurology, Ghent University, De Pintelaan 185, B-9000 Ghent, Belgium
| | - Dirk Van Roost
- Department of Neurosurgery, Ghent University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium
| | - Patrick Santens
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium; Faculty of Psychology and Educational Sciences, Department of Experimental Psychology, Ghent University, Henri Dunantlaan 2, B-9000 Ghent, Belgium
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15
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Noël A, Quinette P, Dayan J, de la Sayette V, Viader F, Desgranges B, Giffard B, Eustache F. Influence of depressive symptoms on memory in transient global amnesia. J Neuropsychol 2015; 11:108-121. [PMID: 26179568 DOI: 10.1111/jnp.12080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 06/10/2015] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Recent studies have shown that patients with transient global amnesia (TGA) experience a depressive mood during the episode. However, little evidence has been found of possible mood congruency effects on memory, which are probably masked by the massive anterograde amnesia. An implicit assessment could provide a means of settling this question. METHODS First, we measured patients' emotional states on psychopathological scales. Second, we administered a lexical decision task to assess three priming effects: Semantic priming (SP; table-chair), emotional priming (EP; murder-garbage), and emotional plus semantic priming (ESP; cemetery-coffin). RESULTS Patients displayed a more depressed mood than controls. For patients, we found a SP effect in the ESP condition and a striking inhibition effect (i.e., negative target recognized more slowly when preceded by a negative prime rather than a neutral one) in the EP condition. For controls, a priming effect was found in the SP and ESP conditions, but not the EP condition. Finally, whereas the priming effect was greater in SP than in the other two conditions for controls, for patients it was the EP condition that stood out from the other two, being the only condition that led to an inhibition effect. CONCLUSIONS We highlighted a mood congruency effect in TGA which could impel patients to focus their attention on negative information. While the negative valence of items always led to a slowdown in reaction times for both patients and controls, attesting to a negativity bias, this bias was greater in patients, leading to an inhibition effect.
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Affiliation(s)
- Audrey Noël
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France.,EA 1285, CRPCC, Rennes, France.,EA 1285, University of Rennes 2, France
| | - Peggy Quinette
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France
| | - Jacques Dayan
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France.,Guillaume Régnier University Hospital, Rennes, France
| | - Vincent de la Sayette
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France
| | - Fausto Viader
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France
| | - Béatrice Desgranges
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France
| | - Bénédicte Giffard
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France
| | - Francis Eustache
- UMR-S1077, INSERM, Caen, France.,UMR-S 1077, University of Caen Lower Normandy, Caen, France.,UMR-S 1077, Ecole Pratique des Hautes Etudes, Caen, France.,UMR-S 1077, Caen University Hospital, Caen, France
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16
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Deep brain stimulation of the subthalamic nucleus modulates reward processing and action selection in Parkinson patients. J Neurol 2015; 262:1541-7. [DOI: 10.1007/s00415-015-7749-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 04/11/2015] [Accepted: 04/12/2015] [Indexed: 10/23/2022]
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17
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Tremblay C, Macoir J, Langlois M, Cantin L, Prud'homme M, Monetta L. The effects of subthalamic deep brain stimulation on metaphor comprehension and language abilities in Parkinson's disease. BRAIN AND LANGUAGE 2015; 141:103-109. [PMID: 25577507 DOI: 10.1016/j.bandl.2014.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 10/20/2014] [Accepted: 12/15/2014] [Indexed: 06/04/2023]
Abstract
The effects of subthalamic nucleus (STN) deep brain stimulation (DBS) in Parkinson's disease (PD) on different language abilities are still controversial and its impact on high-level language abilities such as metaphor comprehension has been overlooked. The aim of this study was to determine the effects of STN electrical stimulation on metaphor comprehension and language abilities such as lexical and semantic capacities. Eight PD individuals with bilateral STN-DBS were first evaluated OFF-DBS and, at least seven weeks later, ON-DBS. Performance on metaphor comprehension, lexical decision, word association and verbal fluency tasks were compared ON and OFF-DBS in addition to motor symptoms evaluation. STN stimulation had a significant beneficial effect on motor symptoms in PD. However, this stimulation did not have any effect on metaphor comprehension or any other cognitive ability evaluated in this study. These outcomes suggest that STN stimulation may have dissociable effects on motor and language functions.
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Affiliation(s)
- Christina Tremblay
- Faculté de médecine, Département de réadaptation, Université Laval, 1050, ave de la Médecine, Québec, QC G1V 0A6, Canada; Institut Universitaire en Santé Mentale de Québec, 2601, rue de la Canardière, Québec, QC G1J 2G3, Canada.
| | - Joël Macoir
- Faculté de médecine, Département de réadaptation, Université Laval, 1050, ave de la Médecine, Québec, QC G1V 0A6, Canada; Institut Universitaire en Santé Mentale de Québec, 2601, rue de la Canardière, Québec, QC G1J 2G3, Canada.
| | - Mélanie Langlois
- Clinique des troubles du mouvement, Hôpital de l'Enfant-Jésus, 1401, 18(e) rue, Québec, QC G1J 1Z4, Canada.
| | - Léo Cantin
- Clinique des troubles du mouvement, Hôpital de l'Enfant-Jésus, 1401, 18(e) rue, Québec, QC G1J 1Z4, Canada.
| | - Michel Prud'homme
- Clinique des troubles du mouvement, Hôpital de l'Enfant-Jésus, 1401, 18(e) rue, Québec, QC G1J 1Z4, Canada.
| | - Laura Monetta
- Faculté de médecine, Département de réadaptation, Université Laval, 1050, ave de la Médecine, Québec, QC G1V 0A6, Canada; Institut Universitaire en Santé Mentale de Québec, 2601, rue de la Canardière, Québec, QC G1J 2G3, Canada.
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Tournier I, Postal V, Mathey S. Investigation of age-related differences in an adapted Hayling task. Arch Gerontol Geriatr 2014; 59:599-606. [DOI: 10.1016/j.archger.2014.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 07/28/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
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19
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Jahanshahi M, Obeso I, Baunez C, Alegre M, Krack P. Parkinson's Disease, the Subthalamic Nucleus, Inhibition, and Impulsivity. Mov Disord 2014; 30:128-40. [DOI: 10.1002/mds.26049] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 08/21/2014] [Accepted: 09/07/2014] [Indexed: 12/14/2022] Open
Affiliation(s)
- Marjan Jahanshahi
- Cognitive Motor Neuroscience Group and Unit of Functional Neurosurgery, Sobell Department of Motor Neuroscience and Movement Disorders, UCL Institute of Neurology; London United Kingdom
| | - Ignacio Obeso
- CINAC, HM-Puerta del Sur, Hospitales de Madrid; CEU-San Pablo University, Móstoles; Madrid Spain
| | - Christelle Baunez
- Basal Ganglia, Motivation and Reward' (BAGAMORE), Institut de Neurosciences de la Timone, UMR7289 CNRS and AMU (Aix Marseille Universite); Marseille France
| | - Manuel Alegre
- Neurophysiology Laboratory, Neuroscience Area, CIMA, University of Navarra; Pamplona Spain
| | - Paul Krack
- INSERM U836, F-38000 Grenoble, France; University Grenoble Alpes, GIN, Grenoble, France, and CHU de Grenoble, Movement Disorder Unit; Grenoble France
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20
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Shao Z, Janse E, Visser K, Meyer AS. What do verbal fluency tasks measure? Predictors of verbal fluency performance in older adults. Front Psychol 2014; 5:772. [PMID: 25101034 PMCID: PMC4106453 DOI: 10.3389/fpsyg.2014.00772] [Citation(s) in RCA: 586] [Impact Index Per Article: 58.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 07/01/2014] [Indexed: 12/12/2022] Open
Abstract
This study examined the contributions of verbal ability and executive control to verbal fluency performance in older adults (n = 82). Verbal fluency was assessed in letter and category fluency tasks, and performance on these tasks was related to indicators of vocabulary size, lexical access speed, updating, and inhibition ability. In regression analyses the number of words produced in both fluency tasks was predicted by updating ability, and the speed of the first response was predicted by vocabulary size and, for category fluency only, lexical access speed. These results highlight the hybrid character of both fluency tasks, which may limit their usefulness for research and clinical purposes.
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Affiliation(s)
- Zeshu Shao
- The Psychology of Language Department, Max Planck Institute for Psycholinguistics Nijmegen, Netherlands
| | - Esther Janse
- The Psychology of Language Department, Max Planck Institute for Psycholinguistics Nijmegen, Netherlands ; Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Netherlands ; Centre for Language Studies, Radboud University Nijmegen, Netherlands
| | - Karina Visser
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Netherlands
| | - Antje S Meyer
- The Psychology of Language Department, Max Planck Institute for Psycholinguistics Nijmegen, Netherlands ; Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Netherlands
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21
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Law B, Young B, Pinsker D, Robinson GA. Propositional speech in unselected stroke: The effect of genre and external support. Neuropsychol Rehabil 2014; 25:374-401. [PMID: 25040298 DOI: 10.1080/09602011.2014.937443] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Distinguished from nominal language, propositional language generation refers to the spontaneous and voluntary aspect of language that introduces novel concepts to a specific context. Propositional language can be impaired in a range of neurological disorders, including stroke, despite well-preserved nominal language. Although external support can increase speech rate in patients with reduced propositional speech, no specific investigation of propositional speech has been carried out in unselected stroke patients. The current study investigated propositional language in an unselected post-acute stroke group (N = 18) with mild cognitive impairment and prominent executive dysfunction, but without significant aphasia. Specifically, we investigated whether genre or external support affected the number of words, sentences, and novel ideas produced, compared to healthy controls (N = 27). Results showed that discourse genre was not associated with differential performances. By contrast, speech quantity increased without external support although, for stroke patients, speech novelty decreased. Overall, the novelty deficit in unselected stroke patients highlights the importance of assessing cognition and propositional speech. Our findings suggest that for stroke patients with mild cognitive deficits, including executive dysfunction, introducing external support improved speech quality but not quantity. Implications for both assessment and rehabilitation of social communication are discussed.
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Affiliation(s)
- Bonnie Law
- a Neuropsychology Research Unit, School of Psychology , The University of Queensland , St Lucia , Brisbane , Australia
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22
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Ehlen F, Schoenecker T, Kühn AA, Klostermann F. Differential effects of deep brain stimulation on verbal fluency. BRAIN AND LANGUAGE 2014; 134:23-33. [PMID: 24815947 DOI: 10.1016/j.bandl.2014.04.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 03/31/2014] [Accepted: 04/07/2014] [Indexed: 06/03/2023]
Abstract
We aimed at gaining insights into principles of subcortical lexical processing. Therefore, effects of deep brain stimulation (DBS) in different target structures on verbal fluency (VF) were tested. VF was assessed with active vs. inactivated DBS in 13 and 14 patients with DBS in the vicinity of the thalamic ventral intermediate nucleus (VIM) and, respectively, of the subthalamic nucleus (STN). Results were correlated to electrode localizations in postoperative MRI, and compared to those of 12 age-matched healthy controls. Patients' VF performance was generally below normal. However, while activation of DBS in the vicinity of VIM provoked marked VF decline, it induced subtle phonemic VF enhancement in the vicinity of STN. The effects correlated with electrode localizations in left hemispheric stimulation sites. The results show distinct dependencies of VF on DBS in the vicinity of VIM vs. STN. Particular risks for deterioration occur in patients with relatively ventromedial thalamic electrodes.
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Affiliation(s)
- Felicitas Ehlen
- Charité, University Medicine Berlin, Dept. of Neurology, Motor and Cognition Group, Campus Benjamin Franklin, Germany.
| | - Thomas Schoenecker
- Charité, University Medicine Berlin, Dept. of Neurology, Motor Neuroscience Group, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany.
| | - Andrea A Kühn
- Charité, University Medicine Berlin, Dept. of Neurology, Motor Neuroscience Group, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany.
| | - Fabian Klostermann
- Charité, University Medicine Berlin, Dept. of Neurology, Motor and Cognition Group, Campus Benjamin Franklin, Germany; Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany.
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23
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Castrioto A, Lhommée E, Moro E, Krack P. Mood and behavioural effects of subthalamic stimulation in Parkinson's disease. Lancet Neurol 2014; 13:287-305. [PMID: 24556007 DOI: 10.1016/s1474-4422(13)70294-1] [Citation(s) in RCA: 202] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Deep-brain stimulation (DBS) of the subthalamic nucleus (STN) is an established treatment for motor complications in Parkinson's disease. 20 years of experience with this procedure have contributed to improved understanding of the role of the STN in motor, cognitive, and emotional control. In Parkinson's disease, the pathological STN neuronal activity leads to motor, cognitive, and emotional inhibition. Deafferentation of the STN by DBS can reverse such behavioural inhibition. The release of this brake allows both motor and non-motor improvement, but can also be associated with excessive motor, cognitive, and emotional behavioural disinhibition. Conversely, the notable reduction in anti-parkinsonian drug dose allowed by motor improvement can unveil mesolimbic hypodopaminergic behaviours such as apathy, anxiety, or depression. Fine-tuning of stimulation parameters with dopaminergic drugs is necessary to prevent or improve pathological behaviours.
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Affiliation(s)
- Anna Castrioto
- Movement Disorder Unit, Department of Psychiatry and Neurology, Centre Hospitalier Universitaire de Grenoble, Joseph Fourier University, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 836, Grenoble Institut des Neurosciences, Grenoble, France; Clinica Neurologica, Università di Perugia, Ospedale Santa Maria della Misericordia, Perugia, Italy
| | - Eugénie Lhommée
- Movement Disorder Unit, Department of Psychiatry and Neurology, Centre Hospitalier Universitaire de Grenoble, Joseph Fourier University, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 836, Grenoble Institut des Neurosciences, Grenoble, France
| | - Elena Moro
- Movement Disorder Unit, Department of Psychiatry and Neurology, Centre Hospitalier Universitaire de Grenoble, Joseph Fourier University, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 836, Grenoble Institut des Neurosciences, Grenoble, France
| | - Paul Krack
- Movement Disorder Unit, Department of Psychiatry and Neurology, Centre Hospitalier Universitaire de Grenoble, Joseph Fourier University, Grenoble, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 836, Grenoble Institut des Neurosciences, Grenoble, France.
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Pinto S, Ghio A, Teston B, Viallet F. [Dysarthria across Parkinson's disease progression. Natural history of its components: dysphonia, dysprosody and dysarthria]. Rev Neurol (Paris) 2010; 166:800-10. [PMID: 20800250 DOI: 10.1016/j.neurol.2010.07.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 07/20/2010] [Indexed: 11/16/2022]
Abstract
Dysarthria refers to a collective name for a group of neurologic motor speech disorders, resulting from central and/or peripheral nervous system abnormalities. Speech alteration in Parkinson's disease, so-called hypokinetic dysarthria, presents with prosodic insufficiency, related to a monotony of pitch and intensity, a reduction of accentuation, variable speech rate and possible phoneme imprecision. In most cases, voice is harsh and breathy. This symptom can affect both voice and speech quality, as well as prosody and intelligibility. As a consequence, many patients complain about speech impairments, which affect their communication in daily living activities. Perceptual and instrumental assessments require different and numerous investigation methods, which use may help to further understand the specific dysarthria pathophysiology. This is of importance in order to adjust treatments for dysarthria; as a matter of fact, dopa-therapy, functional neurosurgery or even behavioural speech therapy have variable effects on voice and speech quality in Parkinson's disease.
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Affiliation(s)
- S Pinto
- UMR 6057, Laboratoire Parole et Langage (LPL), CNRS, Université Aix-Marseille, BP 80975, 5 Avenue Pasteur, 13604 Aix-en-Provence Cedex 1, France.
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Crescentini C, Shallice T, Macaluso E. Item retrieval and competition in noun and verb generation: an FMRI study. J Cogn Neurosci 2010; 22:1140-57. [PMID: 19413479 DOI: 10.1162/jocn.2009.21255] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Selection between competing responses and stimulus-response association strength is thought to affect performance during verb generation. However, the specific contribution of these two processes remains unclear. Here we used fMRI to investigate the role of selection and association within frontal and BG circuits that are known to be involved in verb production. Subjects were asked to generate verbs from nouns in conditions requiring either high or low selection, but with constant association strength, and in conditions of weak or strong association strength, now with constant selection demands. Furthermore, we examined the role of selection and association during noun generation from noun stimuli. We found that the midpart of the left inferior frontal gyrus was more active in conditions requiring high compared with low selection, with matched association strength. The same left inferior frontal region activated irrespective of verb or noun generation. Results of ROI analyses showed effects of association strength only for verb generation and specifically in the anterior/ventral part of the left inferior frontal gyrus. Moreover, the BG were more active when weakly associated verbs had to be produced relative to weakly associated nouns. These results highlight a functional segregation within the left inferior frontal gyrus for verb generation. More generally, the findings suggest that both factors of selection between competing responses and association strength are important during single-word production with the latter factor becoming particularly critical when task-irrelevant stimuli interfere with the current task (here nouns during verb production), triggering additional activation of the BG.
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Lepron E, Péran P, Cardebat D, Démonet JF. A PET study of word generation in Huntington's disease: effects of lexical competition and verb/noun category. BRAIN AND LANGUAGE 2009; 110:49-60. [PMID: 19615733 DOI: 10.1016/j.bandl.2009.05.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Revised: 04/06/2009] [Accepted: 05/16/2009] [Indexed: 05/28/2023]
Abstract
Huntington's disease (HD) patients show language production deficits that have been conceptualized as a consequence of executive disorders, e.g. selection deficit between candidate words or switching between word categories. More recently, a deficit of word generation specific to verbs has been reported, which might relate to impaired action representations in HD. We studied the brain correlates of language impairment in HD using H(2)O(15) positron emission tomography (PET). The activation task consisted of generation of semantically appropriate nouns and verbs in dominant (low lexical selection) and selective conditions (high lexical selection). Reaction times were longer and number of errors was higher in 12 non-demented HD than in 17 age-matched controls in all conditions. In both groups, the selective condition yielded longer reaction time and a greater number of errors than the dominant one. PET data revealed that, in control subjects, the left inferior temporal gyrus was involved in the selective condition whereas it was not in HD. Moreover, activity in the anterior cingulate and the inferior frontal gyri was correlated with behavioral performance in control subjects only. In HD, the lack of implication of these regions, already shown to be crucial in lexical selection, might have been partly compensated by the activation in the left supramarginal gyrus (phonological loop activity) and the right inferior frontal gyrus (effortful retrieval processes), which might support accessory language strategies allowing patients to achieve word generation.
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Affiliation(s)
- Evelyne Lepron
- Inserm, Imagerie cérébrale et handicaps neurologiques UMR 825, F-31059 Toulouse, France.
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Abstract
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) in individuals with Parkinson's disease (PD) has often been associated with reduced verbal fluency performance. This study aimed to directly assess semantic switching as a function of STN stimulation in PD participants with the Homophone Meaning Generation Test (HMGT). Seventeen participants with PD who had received STN DBS completed the HMGT in on and off stimulation conditions. Twenty-one non-neurologically impaired participants acted as controls. PD participants (in both on and off stimulation conditions) generated significantly fewer meanings than control participants and consistent with the previous reports of verbal fluency impairment, PD participants produced fewer definitions in the on stimulation condition. PD participants (in both on and off stimulation conditions) also had greater difficulty generating definitions for nonhomographic homophones compared with homographic homographs. The results of this study indicate that STN stimulation exacerbates impairment in semantic switching.
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Crescentini C, Lunardelli A, Mussoni A, Zadini A, Shallice T. A left basal ganglia case of dynamic aphasia or impairment of extra-language cognitive processes? Neurocase 2008; 14:184-203. [PMID: 18569743 DOI: 10.1080/13554790802108380] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We report the case of OTM who presented with dynamic aphasia following a stroke that occurred in the left basal ganglia. He showed drastically reduced spontaneous speech in the context of well preserved naming, repetition and comprehension skills. OTM was particularly impaired in generating words, sentences and phrases when cued by a stimulus allowing many response options. By contrast, when a single response was strongly suggested by a stimulus, he could generate verbal responses adequately. OTM's non-verbal response generation abilities varied across tasks. He performed in the normal range in a motor movement generation test and he produced as many figures as controls when tested on a figural fluency task. He showed, however, many perseverations on this test. Moreover in a random number generation task he produced more responses that were part of ascending and descending series of numbers. The patient's impairments are interpreted as a consequence of two deficits. The first of these consists of an inability to generate verbal responses particularly in situations of high competition and involves the function of left frontal regions. The second deficit is one of impaired novel thought generation as evidenced by perseverations. This second deficit has been proposed to be a function of basal ganglia damage.
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