Publications

Peer-reviewed publications: [62 in PubMed, 125 in Research Gate (RG score of 40.58; H-index: 25),

113 in Google Scholar (2262 citations, i10-index: 33) *corresponding author

1. Inbaraj G, Udupa K*, Prathyusha P V, Nalini A, Sathyaprabha TN. Resting Heart rate variability as a diagnostic marker of cardiovascular dysautonomia in postural tachycardia syndrome. Accepted to Journal of Basic and Clinical Physiology and Pharmacology (JBCPP manuscript ID is JBCPP.2022.0069.R2).

2. Smitha P S, Udupa K, Vinutha S. Systolic Time Intervals in Clinical Heart Failure. Asian Hospital & Healthcare Management 2022, 58: 36-39.

3. Darmani G, Drummond NM, Ramezanpour H, Saha U, Hoque T, Udupa K, Sarica C, Zeng K, Nankoo JF, Hodaie M, Kalia SK, Lozano AM, Hutchison W, Fasano A, Chen R. Differential effects of long-term deep brain stimulation and dopaminergic medications on the subthalamic nucleus beta oscillations and aperiodic activity. Accepted to Movement Disorders (Manuscript # MDS-22-0671.R2).

4. Inbaraj G, Sathyaprabha TN, Udupa K, Amrithanshu R, Patil S, Jamuna R, Nandakumar KK, Belur S, Singh AD, Pathyusha PV, Bayari SK, Rao MR. Impact of Integrated Yoga Therapy on cognitive impairment and cardiac dysfunction in relation to quality of life in patients undergoing Chemotherapy: study protocol for a two-arm randomized controlled trial. Frontiers in Oncology DOI 10.3389/fonc.2022.955184.

5. Kashyap R, Bhattacharjee S, Bharath RD, Saini J, Venkatasubramanian G, Udupa K, Bashir S, Oishi K, Desmond JE, Chen SHA, Guan C. Variation of Cerebrospinal Fluid in Specific Regions Regulates Focality in Transcranial Direct Current Stimulation. Editors: Kai Yu (Carnegie Mellon University) for special edition on "Brain Stimulation" hosted by Frontiers of Human Neuroscience 2022 Sep 2;16: 952602. doi: 10.3389/fnhum.2022.952602.

6. John AP, Udupa K*, Avangapur S, Sujan MU, Inbaraj G, Prathyusha PV, Mahadevan A, AnilKumar R, Shekhar MA, Sathyaprabha TN. Cardiac autonomic dysfunctions in Type 2 diabetes mellitus: an investigative study with heart rate variability measures. American Journal of Cardiovascular Diseases 2022;12(4):224-232 (www.AJCD.us /ISSN:2160-200X/AJCD0143451).

7. Smitha PS, Vinutha SMS, Udupa K, Reddy N, Raveesha A. Alterations in Heart rate variability before and after percutaneous coronary intervention in patients with ischemic heart disease. Indian J Physiol Pharmacol (IJPP) 2022; 66:188-95. DOI: 10.25259/IJPP_228_2022

8. Smitha PS, Vinutha SMS, Reddy N, Udupa K, Raveesha A. Prognostic value of Heart Rate Variability in Acute Coronary Syndrome. Journal of Basic and Clinical Physiology and Pharmacology 2022 ISSN: 0792-6855, 2191-0286; DOI: 10.1515/jbcpp-2022-0134; PMID: 36194293.

9. Chen R, Berardelli A, Bhattacharya A, Bologna M, Cheng K-H S, Fasanoa A, Helmichh RC, Hutchison WD, Kamble N, Kühn AA, Macerollo A, Neumanni WJ, Pal PK, Paparellae G, Suppa A, Udupa K. Clinical Neurophysiology of Parkinson’s disease and parkinsonism. Invited review for Clinical Neurophysiology Practice, 2022 (in press, DOI: 10.1016/j.cnp.2022.06.002).

10. Saumya S, Divya K, Varambally S, Udupa K*. Efficacy of Yoga in coping mental health issues due to COVID-19 pandemic: A review. International J of Clinical and Experimental Physiology Int J Clin Exp Physiol. 2022;9(1):3-7. DOI :10.5530/ijcep.2022.9.1.2

11. Parchani G, Gulshan K, Rao R, Udupa K, Saran V. Efficacy of Non-contact Ballistocardiography system to determine Heart Rate Variability. Annals of Neurosciences 2022 Jan;29(1):16-20. doi: 10.1177/09727531211063426. PMID: 35875429

12. Inbaraj G, Rao RM, Ram A, Bayari SK, Pratyusha PV, Sathyaprabha TN, Udupa K*. Acute effects of AUM chanting on Heart rate variability measures and influence of experience. International J of Yoga 15(1):52-58. doi: 10.4103/ijoy.ijoy_141_21.

13. Udupa K*, Bhattacharya A, and Chen R. DBS-evoked potentials in adult dystonia: Connections between basal ganglia and cortex revealed by combining DBS, EP and TMS. Invited review accepted for European J of Pediatric Neurology (EJPN) Special Issue on Advances in Neuromodulation in Children, Jean-Pierre Lin (Editor). EJPN: Elsevier 2021. EJPN-D-21-00151R1.

14. Thirugnanasambandam N, Florian HK, Udupa K. Editorial: Novel Multimodal Approaches in Non-Invasive Brain Stimulation. Frontiers in Human Neuroscience, section Brain Imaging and Stimulation November 2021, Volume 15: 784637. doi: 10.3389/fnhum.2021.784637

15. Cash RFH, Udupa K, Gunraj CA, Mazzella F, Daskalakis ZJ, Wong AH, Kennedy JL, Chen R. Influence of the BDNF Val66Met polymorphism on the balance of excitatory and inhibitory neurotransmission and relationship to plasticity in human cortex, Clin Neurophysiology 132 (2021) 2827–2839.

16. Kashyap R, Bhattacharjee S, Arumugam R, Bharath RD, Udupa K, Oishi K, Desmond JE, SH Annabel Chen, Guan C. Focality Oriented Selection of Current Dose for Transcranial Direct Current Stimulation. Journal of Personalized Medicine. 2021, 11, 940. https://doi.org/10.3390/jpm11090940

17. Gulati K, Praerna HB, Preethi VR, Ramajayam G, Sneha J. K, Udupa K, Mariamma P, Debnath M, Rose DB, Sathyaprabha TN Venkatasubramanian G, Gangadhar BN and Muralidharan K. The adjunct yoga therapy: Influence of on Heart Rate Variability in Major Depressive Disorder -A Randomized Controlled Trial. Asian Journal of Psychiatry 65 (2021): 102832.

18. Bhattacharya A, Mrudula K, Sreevalli SS, Sathyaprabha TN, Pal PK, Chen R, Udupa K*. An overview of non-invasive brain stimulation: Basic principles and clinical applications. Canadian Journal of Neurological Sciences 2021; 00: 1–14. doi:10.1017/cjn.2021.158

19. Keerthy BN, Sreevalli SS, Naik SS, Bose A, Raju H, Mehta UM, Venkatasubramanian G, Thirthalli J, Sathyaprabha TN and Udupa K*. Investigating the effects of rTMS and tDCS on cognitive profile and heart rate variability measures in healthy volunteers, Indian Journal of Physiology Pharmacology 2021; 65: 162-6., DOI 10.25259/IJPP_339_2020.

20. Udupa K*, Mrudula K, Sathyaprabha TN. Career path opportunities for budding physiologists in India and abroad. International J of Clinical and Experimental Physiology (IJCEP 2021; 8(1), Manuscript ID No.610/2021, DOI: 10.5530/ijcep.2018.6.3.x).

21. Saravanamuttu J, Radhu N, Udupa K, Baarbé J, Gunraj C, Chen R. Impaired motor cortical facilitatory-inhibitory circuit interaction in Parkinson’s disease. Clinical Neurophysiology 2021 Oct;132(10):2685-2692. doi: 10.1016/j.clinph.2021.05.032.

22. Udupa K, Meena R, Bhavanani AB. SWOT analysis in Yoga Research. SBV Journal of Basic, Clinical and Applied Health Science 4 (1): 26-30, 2021): 10.5005/jp-journals-10082-3101.

23. Udupa K*, Tai P, Saha U, Wennberg R, Del Campo JM, Valiante T, Andrade D, McAndrews MP, Chen R. Theta burst transcranial magnetic stimulation to induce seizures in an epilepsy monitoring unit. Brain Stimulation 2020 Nov-Dec;13(6):1800-1802. doi: 10.1016/j.brs.2020.10.009.

24. Udupa K*. Transcranial magnetic stimulation in exploring neurophysiology of cortical circuits and potential clinical implications. Invited Review for Indian Journal of Physiology Pharmacology 2020;64(4):244-57.

25. Fuloria S, Subramaniyan, V, Karupiah S, Kumari U, Sathasivam K, Meenakshi DU, Wu YS, Guad RM, Udupa K, Fuloria NK. A Comprehensive Review on Source, Types, Effects, Nanotechnology, Detection, and Therapeutic Management of Reactive Carbonyl Species Associated with Various Chronic Diseases. Antioxidants 2020, 9: 1075. doi: 10.3390/antiox9111075. PMID: 33147856

26. Bhargav PH, Reddy PV, Govindaraj R, Gulati K, Ravindran A, Gayathri D, Karmani SJ, Udupa K, Venkatasubramanian G, Philip M, Debnath M, Bharath RD, Sathyaprabha TN, Gangadhar BN, Muralidharan K. Impact of a Course of Add-on Supervised Yoga on Cortical Inhibition in Major Depressive Disorder: A Randomized Controlled Trial. Can J Psychiatry. 2020; 706743720953247. doi:10.1177/0706743720953247

27. Udupa K, Bhattacharya A, Bharadwaj S, Pal PK and Chen R. Neuroplasticity in Movement disorders: Parkinson’s disease- alterations of motor plasticity and motor learning. In press Handbook of Clinical Neurology, Neuroplasticity: from bench to bedside, Quartarone Ghilardi and Boller (editors). Ross-shire: Elsevier 2022, 184 (3): 135-151. doi: https://doi.org/10.1016/B978-0-12-819410-2.00007-2

28. Swayang SP, Nalini A, Preethish-Kumar V, Udupa K, Seena V, Yadav R, Reshma SS, Kiran P, Saraswati N, Sathyaprabha TN, Priya T, Anita M1, Netravathi M. CASPR-2 related Morvan’s Syndrome: Clinical, Autonomic, Polysomnographic and Neuropsychological Observations. Neurology Clinical Practice June 2021 vol. 11 no. 3 e267-e276 doi:10.1212/CPJ.0000000000000978.

29. Sarma Sreepada SS, Baliga SP, Naik SS, Nagendrappa S, Bojappen N, Bose A, Mehta UM, Venkatasubramanian G, Sathyaprabha TN, Thirthalli J, Udupa K*. Dual stimulation with tDCS-iTBS as add-on treatment in recurrent depressive disorder-a case report. Brain Stimul. 2020 May-Jun;13(3):625-626. doi: 10.1016/j.brs.2020.02.001.

30. Weissbach A, Udupa K, Ni Z, Gunraj C, Rinchon C, Baarbe J, Fasano A, Munhoz RP, Lang A, Tadic V, Brüggemann N, Münchau A, Bäumer T, Chen R. Single-pulse subthalamic deep brain stimulation reduces premotor-motor facilitation in Parkinson's disease. Parkinsonism Relat Disord. 2019 Sep;66: 224-227. doi: 10.1016/j.parkreldis.2019.08.003.

31. Udupa K, Chen R. Motor cortical circuits in Parkinson disease and dystonia. Handb Clin Neurol. 2019;161:167-186. doi: 10.1016/B978-0-444-64142-7.00047-3.PMID: 31307598.

32. Vikhnan S, Udupa K*, Varambally S, Sudhakar D, Sathyaprabha TN A comparative study to assess the modulation of stress by shirodhara in healthy individuals by psychometric and heart rate variability measures. Applied Medical Research 2019; 6 (2), 22–30.

33. Ni Z, Udupa K, Hallett M, Chen R. Effects of deep brain stimulation on the primary motor cortex: Insights from transcranial magnetic stimulation studies. Clin Neurophysiol. 2019 Apr;130(4):558-567. doi: 10.1016/j.clinph.2018.10.020.

34. Ghahremani A, Aron AR, Udupa K, Saha U, Reddy D, Hutchison WD, Kalia SK, Hodaie M, Lozano AM, Chen R. Event-related deep brain stimulation of the subthalamic nucleus affects conflict processing. Ann Neurol. 2018 Oct;84(4):515-526. doi: 10.1002/ana.25312.

35. Ni Z, Kim SJ, Phielipp N, Ghosh S, Udupa K, Gunraj CA, Saha U, Hodaie M, Kalia SK, Lozano AM, Lee DJ, Moro E, Fasano A, Hallett M, Lang AE, Chen R. Pallidal deep brain stimulation modulates cortical excitability and plasticity. Ann Neurol. 2018 Feb;83(2):352-362. doi: 10.1002/ana.25156.

36. Ghahremani A, Wessel JR, Udupa K, Neagu B, Zhuang P, Saha U, Kalia SK, Hodaie M, Lozano AM, Aron AR, Chen R. Stopping and slowing manual and spoken responses: Similar oscillatory signatures recorded from the Subthalamic nucleus. Brain Lang. 2018 Jan;176:1-10. doi: 10.1016/j.bandl.2017.10.009.

37. Visanji NP, Bhudhikanok GS, Mestre TA, Ghate T, Udupa K, AlDakheel A, Connolly BS, Gasca-Salas C, Kern DS, Jain J, Slow EJ, Faust-Socher A, Kim S, Azhu Valappil R, Kausar F, Rogaeva E, William Langston J, Tanner CM, Schüle B, Lang AE, Goldman SM, Marras C. Heart rate variability in leucine-rich repeat kinase 2-associated Parkinson's disease. Mov Disord. 2017 Apr;32(4):610-614. doi: 10.1002/mds.26896.

38. Talakoub O, Neagu B, Udupa K, Tsang E, Chen R, Popovic MR, Wong W. Time-course of coherence in the human basal ganglia during voluntary movements. Sci Rep. 2016 Oct 11;6:34930. doi: 10.1038/srep34930.

39. Wessel JR, Ghahremani A, Udupa K, Saha U, Kalia SK, Hodaie M, Lozano AM, Aron AR, Chen R. Stop-related subthalamic beta activity indexes global motor suppression in Parkinson's disease. Mov Disord. 2016 Dec;31(12):1846-1853. doi: 10.1002/mds.26732.

40. Udupa K, Chen R. Deeper understanding of the role of dopamine in reward, learning, and motivation. Mov Disord. 2016 Apr;31(4):498. doi: 10.1002/mds.26623. Epub 2016 Mar 31.

41. Udupa K, Bahl N, Ni Z, Gunraj C, Mazzella F, Moro E, Hodaie M, Lozano AM, Lang AE, Chen R. Cortical Plasticity Induction by Pairing Subthalamic Nucleus Deep-Brain Stimulation and Primary Motor Cortical Transcranial Magnetic Stimulation in Parkinson's Disease. J Neurosci. 2016 Jan 13;36(2):396-404. doi: 10.1523/JNEUROSCI.2499-15.2016.

42. Udupa K, Chen R. Role of dopamine in motor cortex plasticity in Parkinson's disease. Mov Disord. 2016 Jan;31(1):43. doi: 10.1002/mds.26451. Epub 2015 Dec 21.

43. Udupa K, Chen R. The mechanisms of action of deep brain stimulation and ideas for the future development. Prog Neurobiol. 2015 Oct;133: 27-49. doi: 10.1016/j.pneurobio.2015.08.001.

44. Udupa K, Ghahremani A, Chen R. Are we close to the advent of closed loop deep brain stimulation in Parkinson's disease? Mov Disord. 2015 Sep;30(10):1326. doi: 10.1002/mds.26343.

45. Kim SJ, Udupa K, Ni Z, Moro E, Gunraj C, Mazzella F, Lozano AM, Hodaie M, Lang AE, Chen R. Effects of subthalamic nucleus stimulation on motor cortex plasticity in Parkinson disease. Neurology. 2015 Aug 4;85(5):425-32. doi: 10.1212/WNL.0000000000001806.

46. Udupa K, Fox SH. Placebo effect in Parkinson's disease: Harnessing the mind in the treatment of PD. Mov Disord. 2015 May;30(6):786. doi: 10.1002/mds.26222.

47. Kishore RK, Abhishekh HA, Udupa K, Thirthalli J, Lavekar GS, Gangadhar BN, Raju TR, Sathyaprabha TN. Evaluation of the influence of ayurvedic formulation (Ayushman-15) on psychopathology, heart rate variability and stress hormonal level in major depression (Vishada). Asian J Psychiatr. 2014 Dec;12: 100-7. doi: 10.1016/j.ajp.2014.07.002.

48. Udupa K, Chen R. Theta burst stimulation to explore the sensory-motor integration of cortical circuits. Clin Neurophysiol. 2014 Nov;125(11):2146. doi: 10.1016/j.clinph.2014.03.020.

49. Kashigar A, Udupa K, Fish J, Chen R. Neurophysiological assessment of fatigue in electrical injury patients. Exp Brain Res. 2014 Mar;232(3):1013-23. doi: 10.1007/s00221-013-3812-x.

50. Udupa K, Ni Z, Gunraj C, Chen R. Effects of short-latency afferent inhibition on short-interval intracortical inhibition. J Neurophysiol. 2014 Mar;111(6):1350-61. doi: 10.1152/jn.00613.2013.

51. Udupa K, Fox SH. Subthalamic nucleus and striatum: the red and green signals to regulate the traffic of basal ganglia circuitry. Mov Disord. 2013 Nov;28(13):1802. doi: 10.1002/mds.25694.

52. Udupa K, Chen R. Central motor conduction time. Handb Clin Neurol. 2013;116:375-86. doi: 10.1016/B978-0-444-53497-2.00031-0.

53. Udupa K, Chen R. Motor cortical plasticity in Parkinson's disease. Front Neurol. 2013 Sep 4;4:128. doi: 10.3389/fneur.2013.00128.

54. Trakroo M, Bhavanani AB, Pal GK, Udupa K, Krishnamurthy N. A comparative study of the effects of asan, pranayama and asan-pranayama training on neurological and neuromuscular functions of Pondicherry police trainees. Int J Yoga. 2013 Jul;6(2):96-103. doi: 10.4103/0973-6131.113398.

55. Bhavanani AB, Udupa K, Madanmohan, Ravindra P. A comparative study of slow and fast suryanamaskar on physiological function. Int J Yoga. 2011 Jul;4(2):71-6. doi: 10.4103/0973-6131.85489.

56. Udupa K, Thirthalli J, Sathyaprabha TN, Kishore KR, Raju TR, Gangadhar BN. Differential actions of antidepressant treatments on cardiac autonomic alterations in depression: A prospective comparison. Asian J Psychiatr. 2011 Jun;4(2):100-6. doi: 10.1016/j.ajp.2011.02.006.

57. Ni Z, Gunraj C, Wagle-Shukla A, Udupa K, Mazzella F, Lozano AM, Chen R. Direct demonstration of inhibitory interactions between long interval intracortical inhibition and short interval intracortical inhibition. J Physiol. 2011 Jun 15;589(Pt 12):2955-62. doi: 10.1113/jphysiol.2011.207928.

58. Ni Z, Charab S, Gunraj C, Nelson AJ, Udupa K, Yeh IJ, Chen R. Transcranial magnetic stimulation in different current directions activates separate cortical circuits. J Neurophysiol. 2011 Feb;105(2):749-56. doi: 10.1152/jn.00640.2010.

59. Udupa K, Ni Z, Gunraj C, Chen R.Effect of long interval interhemispheric inhibition on intracortical inhibitory and facilitatory circuits. J Physiol. 2010 Jul 15;588(Pt 14):2633-41. doi: 10.1113/jphysiol.2010.189548.

60. Kuriakose R, Saha U, Castillo G, Udupa K, Ni Z, Gunraj C, Mazzella F, Hamani C, Lang AE, Moro E, Lozano AM, Hodaie M, Chen R. The nature and time course of cortical activation following subthalamic stimulation in Parkinson's disease. Cereb Cortex. 2010 Aug;20(8):1926-36. doi: 10.1093/cercor/bhp269.

61. Chen R, Udupa K. Measurement and modulation of plasticity of the motor system in humans using transcranial magnetic stimulation. Motor Control. 2009 Oct;13(4):442-53.

62. Udupa K, Ni Z, Gunraj C, Chen R. Interactions between short latency afferent inhibition and long interval intracortical inhibition. Exp Brain Res. 2009 Nov;199(2):177-83. doi: 10.1007/s00221-009-1997-9.

63. Prasad MK, Udupa K, Kishore KR, Thirthalli J, Sathyaprabha TN, Gangadhar BN. Inter-rater reliability of Hamilton depression rating scale using video- recorded interviews - Focus on rater-blinding. Indian J Psychiatry. 2009 Jul-Sep;51(3):191-4. doi: 10.4103/0019-5545.55085.

64. Udupa K, Sathyaprabha TN, Thirthalli J, Kishore KR, Raju TR, Gangadhar BN. Modulation of cardiac autonomic functions in patients with major depression treated with repetitive transcranial magnetic stimulation. J Affect Disord. 2007 Dec;104(1-3):231-6.

65. Udupa K, Sathyaprabha TN, Thirthalli J, Kishore KR, Lavekar GS, Raju TR, Gangadhar BN. Alteration of cardiac autonomic functions in patients with major depression: a study using heart rate variability measures. J Affect Disord. 2007 Jun;100(1-3):137-41. Epub 2006 Nov 20.

66. Ravisankar P, Madanmohan, Udupa K, Prakash ES. Correlation between body mass index and blood pressure indices, handgrip strength and handgrip endurance in underweight, normal weight and overweight adolescents. Indian J Physiol Pharmacol. 2005 Oct-Dec;49(4):455-61.

67. Madanmohan, Udupa K, Bhavanani AB, Vijayalakshmi P, Surendiran A. Effect of slow and fast pranayams on reaction time and cardiorespiratory variables. Indian J Physiol Pharmacol. 2005 Jul-Sep;49(3):313-8.

68. Madanmohan, Udupa K, Bhavanani AB, Shatapathy CC, Sahai A. Modulation of cardiovascular response to exercise by yoga training. Indian J Physiol Pharmacol. 2004 Oct;48(4):461-5.

69. Madanmohan, Narayan SK, Prashanth U, Kamath MG, Udupa K, Sethuraman KR, Srinivasan S, Kumar RA. Tilt table testing in the diagnostic evaluation of presyncope and syncope: a case-series report. Prakash ES, Indian J Physiol Pharmacol. 2004 Apr;48(2):213-8.

70. Mandanmohan, Jatiya L, Udupa K, Bhavanani AB. Effect of yoga training on handgrip, respiratory pressures and pulmonary function. Indian J Physiol Pharmacol. 2003 Oct;47(4):387-92.

71. Bhavanani AB, Madanmohan, Udupa K. Acute effect of Mukh bhastrika (a yogic bellows type breathing) on reaction time. Indian J Physiol Pharmacol. 2003 Jul;47(3):297-300.

72. Udupa K, Madanmohan, Bhavanani AB, Vijayalakshmi P, Krishnamurthy N. Effect of pranayam training on cardiac function in normal young volunteers. Indian J Physiol Pharmacol. 2003 Jan;47(1):27-33.

73. Madanmohan, Udupa K, Bhavanani AB, Krishnamurthy N, Pal GK. Modulation of cold pressor-induced stress by shavasan in normal adult volunteers. Indian J Physiol Pharmacol. 2002 Jul;46(3):307-12.