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Greg Gdowski

TitleAssociate Professor
InstitutionSchool of Medicine and Dentistry
DepartmentBiomedical Engineering
AddressUniversity of Rochester
500 Joseph C. Wilson Blvd.
Box 270168
Rochester NY 14611
 
 Awards And Honors
      (Alpha Eta Mu Beta) Biomedical Engineering Honor Society
1986 - 1996Graduate Research Fellowship  | Dept. Biomedical Engineering
1991     Resident Assistantship  | University Housing, Boston University.
1992 - 1993Senior Resident Assistantship  | University Housing, Boston University.
1999     Travel award:  | Ninth annual meeting of the Society for the Neural Control of Mo
1999     Travel award  | Third International Conference on Cognitive and Neural Systems.
 
 Overview
RESEARCH:

Neural mechanisms underlying postural control.
Postural reflexes are evoked and controlled by a variety of sensory inputs. The vestibulo-spinal (VS) pathways carry sensory vestibular signals to widespread regions of the spinal cord where they interact with motor nuclei to produce reflexive movement. This laboratory studies the vestibulo-collic reflexes (VCR), which are an important subset of postural reflexes that avert potential neck injury by reorienting the head during perturbations of the body. These mechanisms are studied using a variety of electrophysiological techniques for relating the response properties of the vestibulospinal neurons to functional aspects of the behavior and to the muscular activity used to produce the behavior. The functional aspects of the behavior to a certain extent depend on the behavioral context in which the reflex was evoked. Newer studies will investigate whether and how the signals arising from the vestibulospinal pathways participate in modifying the performance of reflexes during different behavioral contexts. We seek to understand the signal processing carried out by the spinal pathways and to relate it to the motor activity used to produce the reflex by correlating simultaneously recorded electromyography of neck muscles with neural activity. The results of these studies are not only significant to our understanding of the sensory-motor control of head movements but are also globally applicable to the control of all vestibular postural reflexes because their mechanisms likely utilize similar neural processing strategies.

PUBLICATIONS:

Gdowski, G.T., and McCrea, R. A. Integration of Vestibular and Head Movement Signals in the Vestibular Nuclei during Whole Body Rotation. J Neurophys., 81: 436-449, 1999.
McCrea, R. A., Gdowski, G.T., Boyle, R., and Belton, T. Firing behavior of vestibulo-spinal and other non-eye-movement related vestibular neurons during active and passive head movements. J Neurophys. 81: 416-428, 1999.
Gdowski, G.T. and McCrea, R. A. Open-loop versus closed-loop control of reflexive head movements. IEEE Trans. 504:544 1999.
Gdowski, G.T., Boyle, R., and McCrea, R. A. Sensory processing in the vestibular nuclei during active head movements. Arch. Ital. Biol. 138(1):15-28, 2000.
Gdowski, G.T., and McCrea, R. A. Neck proprioceptive inputs to primate vestibular nucleus neurons, Exp. Brain Res. 135(4):511-26, 2000.
Gdowski, G.T., Belton, T., and McCrea, R. A. Neurophysiological substrate for the cervical-ocular reflex in the squirrel monkey, Exp. Brain Res. 140(3): 253-64, 2001.
McCrea, R.A. and Gdowski, G.T. The role of the tonic neck-eye reflex in gaze control. In Duysens, J., Bouwien, Smits-Engelsman, B.C.M. & Kingma, H. (Eds.).: Control of Posture and Gait. International Society for Postural and Gait Research, Nijmegen, Netherlands, 2001.
McCrea, R.A., Gdowski, G.T. and Luan H. Current concepts of vestibular nucleus function : Transformation of vestibular signals in the vestibular nuclei. Ann. NY Acad. Sci. , 942: 328-44, 2001.
McCrea, R.A. and Gdowski G.T. Firing behaviour of squirrel monkey eye movement-related vestibular nucleus neurons during gaze saccades. J Physiol. 2003; 546(Pt 1): 207-24.
Reynolds, J.S. and Gdowski G.T.. The effect of passive torque on the kinematics of vestibular-evoked reflexive head movements. IEEE Trans. The 2nd international IEEE EMBS special topic conference on neural engineering,

 
 Selected Publications
List All   |   Timeline
  1. Luan H, Gdowski MJ, Newlands SD, Gdowski GT. Convergence of vestibular and neck proprioceptive sensory signals in the cerebellar interpositus. J Neurosci. 2013 Jan 16; 33(3):1198-210.
    View in: PubMed
  2. Khandwala VJ, Burack MA, Mink JW, Gdowski GT, Gdowski MJ. Measurement of upper limb kinematics and joint angle patterns during deep brain stimulation for parkinson's disease. Conf Proc IEEE Eng Med Biol Soc. 2009; 2009:1553-6.
    View in: PubMed
  3. Brown ET, Luan H, Gdowski MJ, Gdowski GT. Head movements produced during linear translations in unexpected directions. Conf Proc IEEE Eng Med Biol Soc. 2009; 2009:7261-4.
    View in: PubMed
  4. Reynolds JS, Blum D, Gdowski GT. Reweighting sensory signals to maintain head stability: adaptive properties of the cervicocollic reflex. J Neurophysiol. 2008 Jun; 99(6):3123-35.
    View in: PubMed
  5. Reynolds JS, Gdowski GT. Head movements produced during whole body rotations and their sensitivity to changes in head inertia in squirrel monkeys. J Neurophysiol. 2008 May; 99(5):2369-82.
    View in: PubMed
  6. Gdowski GT, Duarte SP, Green A. Vestibular-evoked reflexive head movements and their dependence on the body's orientation in space. Conf Proc IEEE Eng Med Biol Soc. 2006; 1:3696-9.
    View in: PubMed
  7. McCrea RA, Gdowski GT. Firing behaviour of squirrel monkey eye movement-related vestibular nucleus neurons during gaze saccades. J Physiol. 2003 Jan 1; 546(Pt 1):207-24.
    View in: PubMed
  8. Gdowski GT, Belton T, McCrea RA. The neurophysiological substrate for the cervico-ocular reflex in the squirrel monkey. Exp Brain Res. 2001 Oct; 140(3):253-64.
    View in: PubMed
  9. McCrea R, Gdowski G, Luan H. Current concepts of vestibular nucleus function: transformation of vestibular signals in the vestibular nuclei. Ann N Y Acad Sci. 2001 Oct; 942:328-44.
    View in: PubMed
  10. Gdowski GT, McCrea RA. Neck proprioceptive inputs to primate vestibular nucleus neurons. Exp Brain Res. 2000 Dec; 135(4):511-26.
    View in: PubMed
  11. Gdowski GT, Boyle R, McCrea RA. Sensory processing in the vestibular nuclei during active head movements. Arch Ital Biol. 2000 Jan; 138(1):15-28.
    View in: PubMed
  12. McCrea RA, Gdowski GT, Boyle R, Belton T. Firing behavior of vestibular neurons during active and passive head movements: vestibulo-spinal and other non-eye-movement related neurons. J Neurophysiol. 1999 Jul; 82(1):416-28.
    View in: PubMed
  13. Gdowski GT, McCrea RA. Integration of vestibular and head movement signals in the vestibular nuclei during whole-body rotation. J Neurophysiol. 1999 Jul; 82(1):436-49.
    View in: PubMed
  14. Gdowski GT, Voigt HF. Intrinsic oscillations and discharge regularity of units in the dorsal cochlear nucleus (DCN) of the barbiturate anesthetized gerbil. Ann Biomed Eng. 1998 May-Jun; 26(3):473-87.
    View in: PubMed
  15. Gdowski GT, Voigt HF. Response map properties of units in the dorsal cochlear nucleus of barbiturate-anesthetized gerbil (Meriones unguiculatus). Hear Res. 1997 Mar; 105(1-2):85-104.
    View in: PubMed
  16. McCrea RA, Chen-Huang C, Belton T, Gdowski GT. Behavior contingent processing of vestibular sensory signals in the vestibular nuclei. Ann N Y Acad Sci. 1996 Jun 19; 781:292-303.
    View in: PubMed
  17. Davis KA, Gdowski GT, Voigt HF. A statistically based method to generate response maps objectively. J Neurosci Methods. 1995 Mar; 57(1):107-18.
    View in: PubMed
  18. Gdowski GT, Eldred WD, Voigt HF. A simple device for the computer quantification of depth measurements in thick light microscope sections. J Neurosci Methods. 1987 Jul; 20(3):249-60.
    View in: PubMed

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