Rick Helmich, Ph.D. - Publications

Affiliations: 
Donders Institute Radboud University Nijmegen, Nijmegen, Gelderland, Netherlands 
Website:
http://www.rickhelmich.com/index.htm/home.html

92 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2024 Laansma MA, Zhao Y, van Heese EM, Bright JK, Owens-Walton C, Al-Bachari S, Anderson TJ, Assogna F, van Balkom TD, Berendse HW, Cendes F, Dalrymple-Alford JC, Debove I, Dirkx MF, Druzgal J, ... ... Helmich RC, et al. A worldwide study of subcortical shape as a marker for clinical staging in Parkinson's disease. Npj Parkinson's Disease. 10: 223. PMID 39557903 DOI: 10.1038/s41531-024-00825-9  0.736
2024 He C, Yang R, Rong S, Zhang P, Chen X, Qi Q, Gao Z, Li Y, Li H, de Leeuw FE, Tuladhar AM, Duering M, Helmich RC, van der Vliet R, Darweesh SKL, et al. Temporal evolution of microstructural integrity in cerebellar peduncles in Parkinson's disease: Stage-specific patterns and dopaminergic correlates. Neuroimage. Clinical. 44: 103679. PMID 39366283 DOI: 10.1016/j.nicl.2024.103679  0.359
2024 Owens-Walton C, Nir TM, Al-Bachari S, Ambrogi S, Anderson TJ, Aventurato ÍK, Cendes F, Chen YL, Ciullo V, Cook P, Dalrymple-Alford JC, Dirkx MF, Druzgal J, Emsley HCA, Guimarães R, ... ... Helmich RC, et al. A worldwide study of white matter microstructural alterations in people living with Parkinson's disease. Npj Parkinson's Disease. 10: 151. PMID 39128907 DOI: 10.1038/s41531-024-00758-3  0.694
2024 Tichelaar JG, Hezemans F, Bloem BR, Helmich RC, Cools R. Neural reinforcement learning signals predict recovery from impulse control disorder symptoms in Parkinson's disease. Biological Psychiatry. PMID 39002875 DOI: 10.1016/j.biopsych.2024.06.027  0.308
2024 van der Heide A, Goltz F, de Vries NM, Bloem BR, Speckens AE, Helmich RC. Study protocol for the MIND-PD study: a randomized controlled trial to investigate clinical and biological effects of mindfulness-based cognitive therapy in people with Parkinson's disease. Bmc Neurology. 24: 219. PMID 38918695 DOI: 10.1186/s12883-024-03736-7  0.339
2024 van der Heide A, Dommershuijsen LJ, Puhlmann LMC, Kalisch R, Bloem BR, Speckens AEM, Helmich RC. Predictors of stress resilience in Parkinson's disease and associations with symptom progression. Npj Parkinson's Disease. 10: 81. PMID 38605033 DOI: 10.1038/s41531-024-00692-4  0.343
2024 Goltz F, van der Heide A, Helmich RC. Alleviating Stress in Parkinson's Disease: Symptomatic Treatment, Disease Modification, or Both? Journal of Parkinson's Disease. PMID 38363618 DOI: 10.3233/JPD-230211  0.334
2023 Kerestes R, Laansma MA, Owens-Walton C, Perry A, van Heese EM, Al-Bachari S, Anderson TJ, Assogna F, Aventurato ÍK, van Balkom TD, Berendse HW, van den Berg KRE, Betts R, Brioschi R, Carr J, ... ... Helmich RC, et al. Cerebellar Volume and Disease Staging in Parkinson's Disease: An ENIGMA-PD Study. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 37964373 DOI: 10.1002/mds.29611  0.741
2023 Johansson ME, Toni I, Kessels RPC, Bloem BR, Helmich RC. Clinical severity in Parkinson's disease is determined by decline in cortical compensation. Brain : a Journal of Neurology. PMID 37757883 DOI: 10.1093/brain/awad325  0.679
2023 Buijink AWG, Snijders AH, Helmich RC. Dystonic Tremor Disappearance after Internal Capsule Stroke. Movement Disorders Clinical Practice. 10: 1203-1206. PMID 37635775 DOI: 10.1002/mdc3.13790  0.476
2023 Dirkx MF, Shine JM, Helmich RC. Integrative Brain States Facilitate the Expression of Parkinson's Tremor. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 37363818 DOI: 10.1002/mds.29506  0.703
2023 Tichelaar JG, Sayal C, Helmich RC, Cools R. Impulse control disorder in Parkinson's disease is associated with abnormal frontal value signalling. Brain : a Journal of Neurology. PMID 37192341 DOI: 10.1093/brain/awad162  0.305
2023 Tosserams A, Bloem BR, Ehgoetz Martens KA, Helmich RC, Kessels RPC, Shine JM, Taylor NL, Wainstein G, Lewis SJG, Nonnekes J. Modulating arousal to overcome gait impairments in Parkinson's disease: how the noradrenergic system may act as a double-edged sword. Translational Neurodegeneration. 12: 15. PMID 36967402 DOI: 10.1186/s40035-023-00347-z  0.389
2023 Johansson ME, van Lier NM, Kessels RPC, Bloem BR, Helmich RC. Two-year clinical progression in focal and diffuse subtypes of Parkinson's disease. Npj Parkinson's Disease. 9: 29. PMID 36806285 DOI: 10.1038/s41531-023-00466-4  0.403
2023 Maas BR, Bloem BR, Ben-Shlomo Y, Evers LJW, Helmich RC, Kalf JG, van der Marck MA, Meinders MJ, Nieuwboer A, Nijkrake MJ, Nonnekes J, Post B, Sturkenboom IHWM, Verbeek MM, de Vries NM, et al. Time trends in demographic characteristics of participants and outcome measures in Parkinson's disease research: A 19-year single-center experience. Clinical Parkinsonism & Related Disorders. 8: 100185. PMID 36793589 DOI: 10.1016/j.prdoa.2023.100185  0.349
2022 Burq M, Rainaldi E, Ho KC, Chen C, Bloem BR, Evers LJW, Helmich RC, Myers L, Marks WJ, Kapur R. Author Correction: Virtual exam for Parkinson's disease enables frequent and reliable remote measurements of motor function. Npj Digital Medicine. 5: 196. PMID 36577809 DOI: 10.1038/s41746-022-00744-0  0.39
2022 Lustenhouwer R, Cameron IGM, van Alfen N, Toni I, Geurts ACH, van Engelen BGM, Groothuis JT, Helmich RC. Cerebral Adaptation Associated with Peripheral Nerve Recovery in Neuralgic Amyotrophy: A Randomized Controlled Trial. Neurorehabilitation and Neural Repair. 15459683221145149. PMID 36575812 DOI: 10.1177/15459683221145149  0.517
2022 Beckers M, Bloem BR, Helmich RC. Mask on, Mask off: Subclinical Parkinson's Disease Unveiled by COVID-19. Journal of Movement Disorders. PMID 36353805 DOI: 10.14802/jmd.22067  0.326
2022 Chen R, Berardelli A, Bhattacharya A, Bologna M, Chen KS, Fasano A, Helmich RC, Hutchison WD, Kamble N, Kühn AA, Macerollo A, Neumann WJ, Pal PK, Paparella G, Suppa A, et al. Clinical neurophysiology of Parkinson's disease and parkinsonism. Clinical Neurophysiology Practice. 7: 201-227. PMID 35899019 DOI: 10.1016/j.cnp.2022.06.002  0.387
2022 Buijink AWG, van Rootselaar AF, Helmich RC. Connecting tremors - a circuits perspective. Current Opinion in Neurology. PMID 35788547 DOI: 10.1097/WCO.0000000000001071  0.339
2022 Burq M, Rainaldi E, Ho KC, Chen C, Bloem BR, Evers LJW, Helmich RC, Myers L, Marks WJ, Kapur R. Virtual exam for Parkinson's disease enables frequent and reliable remote measurements of motor function. Npj Digital Medicine. 5: 65. PMID 35606508 DOI: 10.1038/s41746-022-00607-8  0.372
2022 Nieuwhof F, Toni I, Buijink AWG, van Rootselaar AF, van de Warrenburg BPC, Helmich RC. Phase-locked transcranial electrical brain stimulation for tremor suppression in dystonic tremor syndromes. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology. PMID 35469732 DOI: 10.1016/j.clinph.2022.03.020  0.538
2022 Cools R, Tichelaar JG, Helmich RCG, Bloem BR, Esselink RAJ, Smulders K, Timmer MHM. Role of dopamine and clinical heterogeneity in cognitive dysfunction in Parkinson's disease. Progress in Brain Research. 269: 309-343. PMID 35248200 DOI: 10.1016/bs.pbr.2022.01.012  0.31
2022 Lustenhouwer R, Cameron IGM, Wolfs E, van Alfen N, Toni I, Geurts ACH, van Engelen BGM, Groothuis JT, Helmich RC. Visuomotor processing is altered after peripheral nerve damage in neuralgic amyotrophy. Brain Communications. 4: fcac034. PMID 35233524 DOI: 10.1093/braincomms/fcac034  0.6
2022 Deuschl G, Becktepe JS, Dirkx M, Haubenberger D, Hassan A, Helmich RC, Muthuraman M, Panyakaew P, Schwingenschuh P, Zeuner KE, Elble RJ. The clinical and electrophysiological investigation of tremor. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology. 136: 93-129. PMID 35149267 DOI: 10.1016/j.clinph.2022.01.004  0.651
2021 Johansson ME, Cameron IGM, Van der Kolk NM, de Vries NM, Klimars E, Toni I, Bloem BR, Helmich RC. Aerobic Exercise Alters Brain Function and Structure in Parkinson's Disease: A Randomized Controlled Trial. Annals of Neurology. PMID 34951063 DOI: 10.1002/ana.26291  0.592
2021 Nieuwhof F, Toni I, Dirkx MF, Gallea C, Vidailhet M, Buijink AWG, van Rootselaar AF, van de Warrenburg BPC, Helmich RC. Cerebello-thalamic activity drives an abnormal motor network into dystonic tremor. Neuroimage. Clinical. 33: 102919. PMID 34929584 DOI: 10.1016/j.nicl.2021.102919  0.759
2021 Laansma MA, Bright JK, Al-Bachari S, Anderson TJ, Ard T, Assogna F, Baquero KA, Berendse HW, Blair J, Cendes F, Dalrymple-Alford JC, de Bie RMA, Debove I, Dirkx MF, Druzgal J, ... ... Helmich RC, et al. International Multicenter Analysis of Brain Structure Across Clinical Stages of Parkinson's Disease. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 34288137 DOI: 10.1002/mds.28706  0.671
2021 Helmich RC, Van den Berg KRE, Panyakaew P, Cho HJ, Osterholt T, McGurrin P, Shamim EA, Popa T, Haubenberger D, Hallett M. Cerebello-Cortical Control of Tremor Rhythm and Amplitude in Parkinson's Disease. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 33792966 DOI: 10.1002/mds.28603  0.369
2021 van der Heide A, Speckens AEM, Meinders MJ, Rosenthal LS, Bloem BR, Helmich RC. Stress and mindfulness in Parkinson's disease - a survey in 5000 patients. Npj Parkinson's Disease. 7: 7. PMID 33462213 DOI: 10.1038/s41531-020-00152-9  0.317
2020 van Nuland AJ, Helmich RC, Dirkx MF, Zach H, Toni I, Cools R, den Ouden HEM. Effects of dopamine on reinforcement learning in Parkinson's disease depend on motor phenotype. Brain : a Journal of Neurology. PMID 33147621 DOI: 10.1093/brain/awaa335  0.763
2020 van der Heide A, Meinders MJ, Speckens AEM, Peerbolte TF, Bloem BR, Helmich RC. Stress and Mindfulness in Parkinson's Disease: Clinical Effects and Potential Underlying Mechanisms. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 33094858 DOI: 10.1002/mds.28345  0.351
2020 van der Heide A, Meinders MJ, Bloem BR, Helmich RC. The Impact of the COVID-19 Pandemic on Psychological Distress, Physical Activity, and Symptom Severity in Parkinson's Disease. Journal of Parkinson's Disease. PMID 32925108 DOI: 10.3233/JPD-202251  0.317
2020 van der Vegt JPM, Hulme OJ, Madsen KH, Buhmann C, Bloem BR, Münchau A, Helmich RC, Siebner HR. Dopamine agonist treatment increases sensitivity to gamble outcomes in the hippocampus in de novo Parkinson's disease. Neuroimage. Clinical. 28: 102362. PMID 32798910 DOI: 10.1016/j.nicl.2020.102362  0.356
2020 van der Stouwe AMM, Nieuwhof F, Helmich RC. Tremor pathophysiology: lessons from neuroimaging. Current Opinion in Neurology. 33: 474-481. PMID 32657888 DOI: 10.1097/WCO.0000000000000829  0.393
2020 Zach H, Dirkx MF, Roth D, Pasman JW, Bloem BR, Helmich RC. Dopamine-responsive and dopamine-resistant resting tremor in Parkinson disease. Neurology. PMID 32651292 DOI: 10.1212/WNL.0000000000010316  0.668
2020 van der Stouwe M, Nieuwhof F, Helmich RC. Tremor pathophysiology: lessons from neuroimaging. Current Opinion in Neurology. PMID 32520800 DOI: 10.1097/WCO.0000000000000829  0.393
2020 Wardt JV, van der Stouwe AMM, Dirkx M, Elting JWJ, Post B, Tijssen MA, Helmich RC. Systematic clinical approach for diagnosing upper limb tremor. Journal of Neurology, Neurosurgery, and Psychiatry. PMID 32457087 DOI: 10.1136/jnnp-2019-322676  0.637
2020 Dirkx MF, Zach H, van Nuland AJ, Bloem BR, Toni I, Helmich RC. Cognitive load amplifies Parkinson's tremor through excitatory network influences onto the thalamus. Brain : a Journal of Neurology. PMID 32355951 DOI: 10.1093/brain/awaa083  0.733
2020 Fritsche M, van der Wel RPRD, Smit R, Bloem BR, Toni I, Helmich RC. Impaired Motor Recycling during Action Selection in Parkinson's Disease. Eneuro. 7. PMID 32299805 DOI: 10.1523/ENEURO.0492-19.2020  0.647
2020 Lustenhouwer R, Cameron IGM, van Alfen N, Oorsprong TD, Toni I, van Engelen BGM, Groothuis JT, Helmich RC. Altered sensorimotor representations after recovery from peripheral nerve damage in neuralgic amyotrophy. Cortex; a Journal Devoted to the Study of the Nervous System and Behavior. 127: 180-190. PMID 32203744 DOI: 10.1016/j.cortex.2020.02.011  0.58
2019 Maas RPPWM, Helmich RCG, van de Warrenburg BPC. The role of the cerebellum in degenerative ataxias and essential tremor: Insights from noninvasive modulation of cerebellar activity. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 31820832 DOI: 10.1002/mds.27919  0.356
2019 van Nuland AJM, den Ouden HEM, Zach H, Dirkx MFM, van Asten JJA, Scheenen TWJ, Toni I, Cools R, Helmich RC. GABAergic changes in the thalamocortical circuit in Parkinson's disease. Human Brain Mapping. PMID 31721369 DOI: 10.1002/hbm.24857  0.763
2019 Dirkx MF, Zach H, van Nuland A, Bloem BR, Toni I, Helmich RC. Cerebral differences between dopamine-resistant and dopamine-responsive Parkinson's tremor. Brain : a Journal of Neurology. PMID 31509182 DOI: 10.1093/brain/awz261  0.758
2019 Lustenhouwer R, van Alfen N, Cameron IGM, Toni I, Geurts ACH, Helmich RC, van Engelen BGM, Groothuis JT. NA-CONTROL: a study protocol for a randomised controlled trial to compare specific outpatient rehabilitation that targets cerebral mechanisms through relearning motor control and uses self-management strategies to improve functional capability of the upper extremity, to usual care in patients with neuralgic amyotrophy. Trials. 20: 482. PMID 31391076 DOI: 10.1186/s13063-019-3556-4  0.544
2019 Jacob Y, Rosenberg-Katz K, Gurevich T, Helmich RC, Bloem BR, Orr-Urtreger A, Giladi N, Mirelman A, Hendler T, Thaler A. Network abnormalities among non-manifesting Parkinson disease related LRRK2 mutation carriers. Human Brain Mapping. PMID 30793410 DOI: 10.1002/hbm.24543  0.346
2018 Helmich RC, Vaillancourt DE, Brooks DJ. The Future of Brain Imaging in Parkinson's Disease. Journal of Parkinson's Disease. 8: S47-S51. PMID 30584163 DOI: 10.3233/Jpd-181482  0.329
2018 Helmich RC, Hallett M, Dirkx MF. Author response: The nature of postural tremor in Parkinson disease. Neurology. 91: 724. PMID 30297510 DOI: 10.1212/WNL.0000000000006314  0.673
2018 Thaler A, Gonen T, Mirelman A, Helmich RC, Gurevich T, Orr-Urtreger A, Bloem BR, Giladi N, Hendler T. Altered reward-related neural responses in non-manifesting carriers of the Parkinson disease related LRRK2 mutation. Brain Imaging and Behavior. PMID 29971685 DOI: 10.1007/s11682-018-9920-2  0.387
2018 Nieuwhof F, Panyakaew P, van de Warrenburg BP, Gallea C, Helmich RC. The patchy tremor landscape: recent advances in pathophysiology. Current Opinion in Neurology. PMID 29750732 DOI: 10.1097/WCO.0000000000000582  0.37
2018 Dirkx MF, Zach H, Bloem BR, Hallett M, Helmich RC. The nature of postural tremor in Parkinson disease. Neurology. PMID 29476038 DOI: 10.1212/WNL.0000000000005215  0.702
2017 Helmich RC, Dirkx MF. Pathophysiology and Management of Parkinsonian Tremor. Seminars in Neurology. 37: 127-134. PMID 28511253 DOI: 10.1055/s-0037-1601558  0.72
2017 Nieuwhof F, Bloem BR, Reelick MF, Aarts E, Maidan I, Mirelman A, Hausdorff JM, Toni I, Helmich RC. Impaired dual tasking in Parkinson's disease is associated with reduced focusing of cortico-striatal activity. Brain : a Journal of Neurology. PMID 28335024 DOI: 10.1093/Brain/Awx042  0.628
2017 Dirkx MF, den Ouden HE, Aarts E, Timmer MH, Bloem BR, Toni I, Helmich RC. Dopamine controls Parkinson's tremor by inhibiting the cerebellar thalamus. Brain : a Journal of Neurology. PMID 28073788 DOI: 10.1093/Brain/Aww331  0.771
2017 Zach H, Dirkx MF, Pasman JW, Bloem BR, Helmich RC. Cognitive Stress Reduces the Effect of Levodopa on Parkinson's Resting Tremor. Cns Neuroscience & Therapeutics. PMID 28071873 DOI: 10.1111/cns.12670  0.669
2016 Caligiore D, Helmich RC, Hallett M, Moustafa AA, Timmermann L, Toni I, Baldassarre G. Parkinson's disease as a system-level disorder. Npj Parkinson's Disease. 2: 16025. PMID 28725705 DOI: 10.1038/Npjparkd.2016.25  0.663
2016 Zach H, Dirkx M, Pasman JW, Bloem BR, Helmich RC. The patient's perspective: The effect of levodopa on Parkinson symptoms. Parkinsonism & Related Disorders. PMID 27919585 DOI: 10.1016/J.Parkreldis.2016.11.015  0.684
2016 Nonnekes J, Timmer MH, de Vries NM, Rascol O, Helmich RC, Bloem BR. Unmasking levodopa resistance in Parkinson's disease. Movement Disorders : Official Journal of the Movement Disorder Society. PMID 27430479 DOI: 10.1002/mds.26712  0.411
2016 Bregman N, Thaler A, Mirelman A, Helmich RC, Gurevich T, Orr-Urtreger A, Marder K, Bressman S, Bloem BR, Giladi N. A cognitive fMRI study in non-manifesting LRRK2 and GBA carriers. Brain Structure & Function. PMID 27401793 DOI: 10.1007/s00429-016-1271-4  0.333
2016 Dirkx MF, den Ouden H, Aarts E, Timmer M, Bloem BR, Toni I, Helmich RC. The Cerebral Network of Parkinson's Tremor: An Effective Connectivity fMRI Study. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 36: 5362-72. PMID 27170132 DOI: 10.1523/Jneurosci.3634-15.2016  0.771
2016 Caligiore D, Pezzulo G, Baldassarre G, Bostan AC, Strick PL, Doya K, Helmich RC, Dirkx M, Houk J, Jörntell H, Lago-Rodriguez A, Galea JM, Miall RC, Popa T, Kishore A, et al. Consensus Paper: Towards a Systems-Level View of Cerebellar Function: the Interplay Between Cerebellum, Basal Ganglia, and Cortex. Cerebellum (London, England). PMID 26873754 DOI: 10.1007/S12311-016-0763-3  0.696
2016 Zach H, Dirkx M, Pasman J, Bloem B, Helmich R. EP 97. Strength lies in peace. Cognitive stress reduces the effect of levodopa on Parkinson’s resting tremor Clinical Neurophysiology. 127: e283-e284. DOI: 10.1016/j.clinph.2016.05.144  0.605
2015 Thaler A, Helmich RC, Or-Borichev A, van Nuenen BF, Shapira-Lichter I, Gurevich T, Orr-Urtreger A, Marder K, Bressman S, Bloem BR, Giladi N, Hendler T, Mirelman A. Intact working memory in non-manifesting LRRK2 carriers - an fMRI study. The European Journal of Neuroscience. PMID 26536050 DOI: 10.1111/ejn.13120  0.707
2015 Zach H, Dirkx M, Bloem BR, Helmich RC. The Clinical Evaluation of Parkinson's Tremor. Journal of Parkinson's Disease. 5: 471-4. PMID 26406126 DOI: 10.3233/Jpd-150650  0.723
2015 Zittel S, Helmich RC, Demiralay C, Münchau A, Bäumer T. Normalization of sensorimotor integration by repetitive transcranial magnetic stimulation in cervical dystonia. Journal of Neurology. 262: 1883-9. PMID 26016685 DOI: 10.1007/s00415-015-7789-1  0.3
2015 Helmich RC, Thaler A, van Nuenen BF, Gurevich T, Mirelman A, Marder KS, Bressman S, Orr-Urtreger A, Giladi N, Bloem BR, Toni I. Reorganization of corticostriatal circuits in healthy G2019S LRRK2 carriers. Neurology. 84: 399-406. PMID 25540317 DOI: 10.1212/Wnl.0000000000001189  0.764
2014 Thaler A, Artzi M, Mirelman A, Jacob Y, Helmich RC, van Nuenen BF, Gurevich T, Orr-Urtreger A, Marder K, Bressman S, Bloem BR, Hendler T, Giladi N, Ben Bashat D. A voxel-based morphometry and diffusion tensor imaging analysis of asymptomatic Parkinson's disease-related G2019S LRRK2 mutation carriers. Movement Disorders : Official Journal of the Movement Disorder Society. 29: 823-7. PMID 24482120 DOI: 10.1002/mds.25827  0.751
2013 Helmich RC, Toni I, Deuschl G, Bloem BR. The pathophysiology of essential tremor and Parkinson's tremor. Current Neurology and Neuroscience Reports. 13: 378. PMID 23893097 DOI: 10.1007/S11910-013-0378-8  0.593
2013 Thaler A, Mirelman A, Helmich RC, van Nuenen BF, Rosenberg-Katz K, Gurevich T, Orr-Urtreger A, Marder K, Bressman S, Bloem BR, Giladi N, Hendler T. Neural correlates of executive functions in healthy G2019S LRRK2 mutation carriers. Cortex; a Journal Devoted to the Study of the Nervous System and Behavior. 49: 2501-11. PMID 23357204 DOI: 10.1016/J.Cortex.2012.12.017  0.729
2013 Helmich RC. The distributed somatotopy of tremor: a window into the motor system. Experimental Neurology. 241: 156-8. PMID 23298522 DOI: 10.1016/j.expneurol.2012.12.015  0.311
2013 Delnooz CC, Helmich RC, Medendorp WP, Van de Warrenburg BP, Toni I. Writer's cramp: increased dorsal premotor activity during intended writing. Human Brain Mapping. 34: 613-25. PMID 22113948 DOI: 10.1002/hbm.21464  0.59
2012 van Nuenen BF, Helmich RC, Ferraye M, Thaler A, Hendler T, Orr-Urtreger A, Mirelman A, Bressman S, Marder KS, Giladi N, van de Warrenburg BP, Bloem BR, Toni I. Cerebral pathological and compensatory mechanisms in the premotor phase of leucine-rich repeat kinase 2 parkinsonism. Brain : a Journal of Neurology. 135: 3687-98. PMID 23250886 DOI: 10.1093/Brain/Aws288  0.808
2012 Delnooz CC, Helmich RC, Toni I, van de Warrenburg BP. Reduced parietal connectivity with a premotor writing area in writer's cramp. Movement Disorders : Official Journal of the Movement Disorder Society. 27: 1425-31. PMID 22886735 DOI: 10.1002/mds.25029  0.605
2012 van Nuenen BF, Helmich RC, Buenen N, van de Warrenburg BP, Bloem BR, Toni I. Compensatory activity in the extrastriate body area of Parkinson's disease patients. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 32: 9546-53. PMID 22787040 DOI: 10.1523/JNEUROSCI.0335-12.2012  0.804
2012 Helmich RC, Hallett M, Deuschl G, Toni I, Bloem BR. Cerebral causes and consequences of parkinsonian resting tremor: a tale of two circuits? Brain : a Journal of Neurology. 135: 3206-26. PMID 22382359 DOI: 10.1093/Brain/Aws023  0.652
2012 Aarts E, Helmich RC, Janssen MJ, Oyen WJ, Bloem BR, Cools R. Aberrant reward processing in Parkinson's disease is associated with dopamine cell loss. Neuroimage. 59: 3339-46. PMID 22166793 DOI: 10.1016/J.Neuroimage.2011.11.073  0.349
2012 Helmich RC, Bloem BR, Toni I. Motor imagery evokes increased somatosensory activity in Parkinson's disease patients with tremor. Human Brain Mapping. 33: 1763-79. PMID 21674693 DOI: 10.1002/hbm.21318  0.663
2011 Helmich RC, Janssen MJ, Oyen WJ, Bloem BR, Toni I. Pallidal dysfunction drives a cerebellothalamic circuit into Parkinson tremor. Annals of Neurology. 69: 269-81. PMID 21387372 DOI: 10.1002/ana.22361  0.635
2011 Snijders AH, Leunissen I, Bakker M, Overeem S, Helmich RC, Bloem BR, Toni I. Gait-related cerebral alterations in patients with Parkinson's disease with freezing of gait. Brain : a Journal of Neurology. 134: 59-72. PMID 21126990 DOI: 10.1093/Brain/Awq324  0.786
2010 Haaxma CA, Helmich RC, Borm GF, Kappelle AC, Horstink MW, Bloem BR. Side of symptom onset affects motor dysfunction in Parkinson's disease. Neuroscience. 170: 1282-5. PMID 20723583 DOI: 10.1016/j.neuroscience.2010.07.030  0.402
2010 Helmich RC, Derikx LC, Bakker M, Scheeringa R, Bloem BR, Toni I. Spatial remapping of cortico-striatal connectivity in Parkinson's disease. Cerebral Cortex (New York, N.Y. : 1991). 20: 1175-86. PMID 19710357 DOI: 10.1093/Cercor/Bhp178  0.729
2009 Helmich RC, Aarts E, de Lange FP, Bloem BR, Toni I. Increased dependence of action selection on recent motor history in Parkinson's disease. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 29: 6105-13. PMID 19439588 DOI: 10.1523/Jneurosci.0704-09.2009  0.758
2009 Helmich R, Derikx L, Bakker M, Scheeringa R, Bloem B, Toni I. Spatial remapping of cortico-striatal connectivity in Parkinson's disease – a resting state fMRI study Neuroimage. 47: S114. DOI: 10.1016/S1053-8119(09)71050-X  0.669
2008 Bakker M, De Lange FP, Helmich RC, Scheeringa R, Bloem BR, Toni I. Cerebral correlates of motor imagery of normal and precision gait. Neuroimage. 41: 998-1010. PMID 18455930 DOI: 10.1016/J.Neuroimage.2008.03.020  0.749
2007 Helmich RC, de Lange FP, Bloem BR, Toni I. Cerebral compensation during motor imagery in Parkinson's disease. Neuropsychologia. 45: 2201-15. PMID 17448507 DOI: 10.1016/j.neuropsychologia.2007.02.024  0.755
2007 Bäumer T, Demiralay C, Hidding U, Bikmullina R, Helmich RC, Wunderlich S, Rothwell J, Liepert J, Siebner HR, Münchau A. Abnormal plasticity of the sensorimotor cortex to slow repetitive transcranial magnetic stimulation in patients with writer's cramp. Movement Disorders : Official Journal of the Movement Disorder Society. 22: 81-90. PMID 17089385 DOI: 10.1002/mds.21219  0.312
2006 de Lange FP, Helmich RC, Toni I. Posture influences motor imagery: an fMRI study. Neuroimage. 33: 609-17. PMID 16959501 DOI: 10.1016/j.neuroimage.2006.07.017  0.707
2006 Helmich RC, Siebner HR, Bakker M, Münchau A, Bloem BR. Repetitive transcranial magnetic stimulation to improve mood and motor function in Parkinson's disease. Journal of the Neurological Sciences. 248: 84-96. PMID 16793065 DOI: 10.1016/J.Jns.2006.05.009  0.633
2005 Helmich RC, Bäumer T, Siebner HR, Bloem BR, Münchau A. Hemispheric asymmetry and somatotopy of afferent inhibition in healthy humans. Experimental Brain Research. 167: 211-9. PMID 16034577 DOI: 10.1055/S-2004-833056  0.304
2005 Demiralay C, Bäumer T, Hidding U, Helmich R, Wunderlich S, Rothwell J, Liepert J, Siebner H, Münchau A. Slow rTMS to the somatosensory cortex attenuates afferent inhibition in patients with writer's cramp Aktuelle Neurologie. 32. DOI: 10.1055/S-2005-919361  0.375
2005 Helmich R, Toni I, Bloem B. Repetitieve transcraniële magnetische stimulatie en beeldvormende technieken: het geprikkelde brein in beeld Neuropraxis. 9: 9-14. DOI: 10.1007/Bf03079028  0.508
2004 Helmich RC, Snijders AH, Verkes RJ, Bloem BR. [Repetitive transcranial magnetic stimulation in depression; stimulation of the brain in order to cure the psyche]. Nederlands Tijdschrift Voor Geneeskunde. 148: 410-5. PMID 15038199  0.582
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