Greg Thomas Gdowski, Ph.D.

Greg Thomas Gdowski, Ph.D.

Contact Information

University of Rochester
500 Joseph C. Wilson Blvd.
Box 270168
Rochester, NY 14611

Professional Bio

EDUCATION:



1995 - 1999 Postdoctoral Fellow University of Chicago; Department of Neurobiology, Pharmacology and Physiology.
1996 Ph.D. in Biomedical Engineering, Boston University, Boston, MA. College of Engineering; Department of Biomedical Engineering
1989 M.S. in Biomedical Engineering.
1985 B.S. in Biomedical Engineering, Boston University, Boston, MA. College of Engineering; Department of Biomedical Engineering.

POSITIONS:

2001 - present Assistant Professor University of Rochester; Department of Neurobiology and Anatomy, and the Department of Biomedical Engineering.
1999 - 2001 Research Associate / Instructor, University of Chicago; Department of Neurobiology, Pharmacology and Physiology.

HONORS AND AWARDS:

Boston University Biomedical Engineering Honor Society (Alpha Eta Mu Beta).
Graduate Research Fellowship (1986-1996), Dept. Biomedical Engineering, Boston University.
Resident Assistantship (1991), University Housing, Boston University.
Senior Resident Assistantship (1992-1993), University Housing, Boston University.
Travel award: Ninth annual meeting of the Society for the Neural Control of Movement, April 1999.
Travel award: Third International Conference on Cognitive and Neural Systems, May 1999.

Research Bio

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,

Awards & Honors (Local)

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. 1999
Senior Resident Assistantship | University Housing, Boston University. 1992 - 1993
Resident Assistantship | University Housing, Boston University. 1991
Graduate Research Fellowship | Dept. Biomedical Engineering | Boston University. 1986 - 1996
(Alpha Eta Mu Beta) Biomedical Engineering Honor Society | Boston University

Recent Journal Articles

Showing the 5 most recent journal articles. 15 available »

2008
Reynolds JS; Blum DA; Gdowski GT. "Reweighting Sensory Signals to Maintain Head Stability: Adaptive Properties of the Cervicocollic Reflex." J Neurophysiol.[. 2008; .
2008
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; 99: 2369–2382.
2005
Reynolds, J.S.; Gdowski G.T.. "The effect of passive torque on the kinematics of vestibular-evoked reflexive head movements. The 2nd international IEEE EMBS special topic conference on neural engineering." IEEE Trans. 2005; . Link
2003 Jan 1
McCrea RA, Gdowski GT. "Firing behaviour of squirrel monkey eye movement-related vestibular nucleus neurons during gaze saccades." The Journal of physiology. 2003 Jan 1; 546(Pt 1):207-24.
2001 Oct
Gdowski GT, Belton T, McCrea RA. "The neurophysiological substrate for the cervico-ocular reflex in the squirrel monkey." Experimental brain research. 2001 Oct; 140(3):253-64.

Current Appointments

Associate Professor - Department of Biomedical Engineering (SMD) - Primary

Education

PhD | Bioengineering | Boston University1996
MS | Bioengineering | Boston University1989
BS | Bioengineering | Boston University1985

Post-Doctoral Training & Residency

Postdoctoral Fellow University of Chicago; Department of Neurobiology, Pharmacology and Physiology, Robert A. McCrea, Ph.D., Research Advisor. 1999