Mark J. Shelhamer


Drexel University, Philadelphia PA



Electrical Engineering

Drexel University, Philadelphia PA



Electrical Engineering

M.I.T., Cambridge MA



Biomedical Engineering

JHU School of Medicine, Baltimore MD







Cooperative Education Student, Drexel University


Research Assistant, Ultrasonics International, Inc.


Laboratory Technician, Temple University School of Medicine


Volunteer Instructor, NASA Space Life Sciences Training Program


Research Assistant, Man-Vehicle Laboratory, M.I.T.


Postdoctoral Fellow, Wilmer Institute, Johns Hopkins University,

School of Medicine 


Research Associate, Department of Biomedical Engineering, 

Johns Hopkins University 


Assistant Professor, Departments of Otolaryngology - Head and Neck Surgery and Biomedical Engineering, Johns Hopkins University,

School of Medicine 


Associate Professor, Departments of Otolaryngology - Head & Neck

Surgery and Biomedical Engineering, Johns Hopkins University,

School of Medicine 






NSF Graduate Fellowship (1982-1985)

NASA Group Achievement Award, for Life Sciences Experiments on Spacelab-1 (1984)

Whitaker Health Sciences Fund Fellowship (1986-1988)

Award for outstanding contributions to the MIT Man-Vehicle Laboratory (1989)

Project Leader, NASA NSBRI Vestibular Experiments (1997-2004)

Who’s Who in Science and Engineering (1999-2000)


IEEE Summer School in Biomedical Signal Processing (1995)

NASA/NSBRI Workshop on Human Vestibular Adaptation (1999)

NASA Artificial Gravity Workshop (1999)

NASA Neurovestibular Integrated Product Team (IPT): liaison between research community and NASA medical operations personnel (flight surgeons) (1999-2002)

NASA Clinical Status Evaluation working group (2004)

Franklin Institute Exhibit Advisor (2008-2010)

JHU Space Studies Initiative Study Group (2008- )

Commercial Spaceflight Federation – Suborbital Applications Researchers Group (2009- )

Editor, special issue of Nonlinear Dynamics in Psychology and Life Sciences (2009)




Institute of Electrical and Electronics Engineers (IEEE), Senior Member

IEEE Engineering in Medicine and Biology Society

IEEE Acoustics, Speech, and Signal Processing Society

Society for Neuroscience





NASA Neurolab grant review panel (1994)

NASA Neurobiology grant review panel (2000-2002)

NIH Special Emphasis Panel (1997-2000)

NIH Communication Disorders Review Committee, ad hoc reviewer (2000)

NSF grant review panel (2003), ad hoc reviewer

DoD/AIBS ad hoc reviewer

NIH Special Emphasis Panel: Clinical Neurophysiology, Devices, Auditory Devices and Neuroprosthesis Small Business (2009- )





M Shelhamer (2007) Nonlinear Dynamics in Physiology: A State-Space Approach. Singapore: World Scientific.




Interview and appearance on HDNet cable television program World Report, topic of research in suborbital space flight, April 2011.





MJ Shelhamer, DC Roberts (issued June 2011) Wireless scleral search coil including systems for measuring eye movement and methods related thereto. U.S. Patent 7,967,439.

MJ Shelhamer (pending) Apparatus and method for assessing vestibulo-ocular function. U.S. Patent Application 13/229,403.



LR Young, M Shelhamer, S Modestino (1986) M.I.T./Canadian vestibular experiments on the Spacelab-1 mission: 2. Visual vestibular tilt interaction in weightlessness. Exp Brain Res 64:299-307.

LR Young, M Shelhamer (1990) Microgravity enhances the relative contribution of visually-induced self motion sensation. Aviat Space Environ Med 61:525-530.

M Shelhamer, DS Zee, SJ Herdman (1992). Observations on horizontal, vertical, and oblique saccades with head tilt. Invest Ophthal Vis Sci 33:1154.

M Shelhamer, DA Robinson, S Tan (1992) Context-specific adaptation of the gain of the vestibulo-ocular reflex in humans. J Vestib Res 2:89-96.

M Shelhamer (1992) Correlation dimension of optokinetic nystagmus as evidence of chaos in the oculomotor system. IEEE Trans Biomed Eng 39:1319-1321.

DM Merfeld, LR Young, CM Oman, MJ Shelhamer (1993) A multi-dimensional model of the effect of gravity on the spatial orientation of the monkey. J Vestibular Res 3:141-161.

C Tiliket, M Shelhamer, HS Tan, DS Zee (1993) Adaptation of the vestibulo-ocular reflex with the head in different orientations and positions relative to the axis of body rotation. J Vestibular Res 3:181-195.

M Shelhamer, LR Young (1994) The interaction of otolith organ stimulation and smooth pursuit tracking. J Vestibular Res 4:1-15.

C Tiliket, M Shelhamer, D Roberts, DS Zee (1994) Short-term vestibulo-ocular reflex (VOR) adaptation in humans. I. Effect on the ocular motor velocity-to-position neural integrator. Exp Brain Res 100:316-327.

M Shelhamer, C Tiliket, D Roberts, PD Kramer, DS Zee (1994) Short-term vestibulo-ocular reflex (VOR) adaptation in humans. II. Error signals. Exp Brain Res 100:328-336.

M Shelhamer, DM Merfeld, JC Mendoza (1994) Vergence can be controlled by audio feedback, and induces downward ocular deviation. Exp Brain Res 101:169-172.

PD Kramer, M Shelhamer, DS Zee (1995) Short-term adaptation of the phase of the vestibuloocular reflex (VOR) in normal human subjects. Exp Brain Res 106:318-326.

M Shelhamer (1997) On the correlation dimension of optokinetic nystagmus eye movements: computational parameters, filtering, nonstationarity, and surrogate data. Biol Cybern 76:237-250.

G McGuire, NB Azar, M Shelhamer (1997) Recurrence matrices and the preservation of dynamical properties. Phys Lett A 237:43-47.

P Kramer, M Shelhamer, DS Zee (1998) Short-term vestibulo-ocular adaptation: influence of context. Otolaryngol – Head Neck Surg 119:60-64.

PD Kramer, DC Roberts, M Shelhamer, DS Zee (1998) A versatile stereoscopic visual display for vestibular and oculomotor research. J Vestibular Res 8:363-379.

PD Kramer, M Shelhamer, GCY Peng, DS Zee (1998) Context-specific short-term adaptation of the phase of the vestibulo-ocular reflex (VOR). Exp Brain Res 120:184-192.

M Shelhamer, CD Gross (1998) Prediction of the sequence of optokinetic nystagmus eye movements reveals deterministic structure in reflexive oculomotor behavior. IEEE Trans Biomed Eng 45:668-670.

M Shelhamer (1998) Nonlinear dynamic systems evaluation of ‘rhythmic’ eye movements (optokinetic nystagmus). J Neurosci Methods 83:45-56.

S Hegemann, M Shelhamer, PD Kramer, DS Zee (2000) Adaptation of the phase of the human linear vestibulo-ocular reflex (LVOR) and effects on the oculomotor neural integrator. J Vestibular Res 10:239-247.

M Shelhamer, DC Roberts, PD Kramer, DS Zee (2000) Dynamics of the human linear vestibulo-ocular reflex at medium frequency and modification by short-term training. J Vestibular Res 10:271-282.

M Shelhamer (2001) Use of a genetic algorithm for the analysis of eye movements from the linear vestibulo-ocular reflex. Ann Biomed Eng 29:510-522.

P Trillenberg, C Gross, M Shelhamer (2001) Random walks, random sequences, and nonlinear dynamics in human optokinetic nystagmus. J App Physiol 91:1750-1759.

M Shelhamer, S Zalewski (2001) A new application for time-delay reconstruction: detection of fast-phase eye movements. Phys Lett A 291:349-354.

P Trillenberg, DS Zee, M Shelhamer (2002) On the distribution of fast phase intervals in OKN and VOR. Biol Cybern 87:68-78.

M Shelhamer, GCY Peng, S Ramat, V Patel (2002) Context-specific adaptation of the oculomotor response to lateral translation using roll and pitch head tilts as contexts. Exp Brain Res 146:388-393.

M Shelhamer, RA Clendaniel (2002) Context-specific adaptation of saccade gain. Exp Brain Res 146:441-450.

M Shelhamer, R Clendaniel (2002) Sensory, motor, and combined contexts for context-specific adaptation of saccade gain in humans. Neurosci Lett 332:200-204.

P Trillenberg, M Shelhamer, DC Roberts, DS Zee (2003) Cross-axis adaptation of torsional components in the yaw-axis VOR. Exp Brain Res 148:158–165.

M Shelhamer, RA Clendaniel, DC Roberts (2003) Context-specific adaptation of saccade gain in parabolic flight. J Vestibular Res 12:211-221.

M Shelhamer, W Joiner (2003) Saccades exhibit abrupt transition between reactive and predictive, predictive saccade sequences have long-term correlations. J Neurophysiol 90:2763-2769.

MF Walker, M Shelhamer, DS Zee (2004) Eye-position dependence of torsional velocity during interaural translation, horizontal pursuit, and yaw-axis rotation in humans. Vision Res 44:613-620.

M Shelhamer, DS Zee (2004) Context-specific adaptation and its significance for neurovestibular problems of space flight. J Vestibular Res 13:345-362.

A Aboukhalil, M Shelhamer, R Clendaniel (2004) Acquisition of context-specific adaptation is enhanced with rest intervals between changes in context state, suggesting a new form of motor consolidation. Neurosci Lett 369:162-167.

M Shelhamer (2005) Sequences of predictive saccades are correlated over a span of ~2 s and produce a fractal time series. J Neurophysiol 93:2002-2011.

M Shelhamer (2005) Phase transition between reactive and predictive eye movements is confirmed with nonlinear forecasting and surrogates. Neurocomp 65-66:769-776.

M Shelhamer (2005) Sequences of predictive eye movements form a fractional Brownian series - implications for self-organized criticality in the oculomotor system. Biol Cybern 93:43-53.

WM Joiner, M Shelhamer (2006) Pursuit and saccadic tracking exhibit a similar dependence on movement preparation time. Exp Brain Res 173:572-586.

WM Joiner, M Shelhamer (2006) An internal clock generates repetitive predictive saccades. Exp Brain Res 175:305-320.

WM Joiner, M Shelhamer (2006) Responses to noisy periodic stimuli reveal properties of a neural predictor. J Neurophysiol 96:2121-2126.

F Karmali, S Ramat, M Shelhamer (2006) Vertical skew due to changes in gravitoinertial force: a possible consequence of otolith asymmetry. J Vestibular Res 16:117-125.

A Zorn, WM Joiner, AG Lasker, M Shelhamer (2007) Sensory versus motor information in the control of predictive saccade timing. Exp Brain Res 179:505-515.

WM Joiner, JE Lee, A Lasker, M Shelhamer (2007) An internal clock for predictive saccades is established identically by auditory or visual information. Vision Res 47:1645-1654.

WM Joiner, JE Lee, M Shelhamer (2007) Behavioral analysis of predictive saccade tracking as studied by countermanding. Exp Brain Res 181:307-320.

D Roberts, M Shelhamer, A Wong (2008) A new “wireless” search-coil system. Proceedings of the Eye Tracking Research & Applications Symposium, Savannah, Georgia, March 26–28, pp. 197-204.

MC Schubert, CC Della Santina, M Shelhamer M (2008) Incremental angular vestibulo-ocular reflex adaptation to active head rotation. Exp Brain Res 191:435-446.

F Karmali, M Shelhamer (2008) The dynamics of parabolic flight: flight characteristics and passenger percepts. Acta Astronaut 63:594-602.

F Karmali, M Shelhamer (2009) Compensating for camera translation in video eye movement recordings by tracking a representative landmark selected automatically by a genetic algorithm. J Neurosci Meth 176:157-165.

Shelhamer M (2009) Introduction to the special issue on psychomotor coordination and control. Nonlinear Dynamics Psychol Life Sci 13:1-2.

WM Joiner, M Shelhamer (2009) A model of time estimation and error feedback in predictive timing behavior. J Comp Neurosci 26:119-138.

F Karmali, M Shelhamer (2010) Neurovestibular considerations for sub-orbital space flight: a framework for future investigation. J Vestibular Res 20:31-43.

MR Scherer, MJ Shelhamer, MC Schubert (2010) Characterizing high-velocity angular vestibulo-ocular reflex function in service members post-blast exposure. Exp Brain Res 208:399-410.

M Shelhamer, K Beaton (2010) Mission to Mars: training and maintenance of sensorimotor responses: considerations based on context-specific adaptation. J Cosmology 12:3817-3824.

AL Wong, M Shelhamer (2011) Sensorimotor adaptation error signals are derived from realistic predictions of movement outcomes. J Neurophysiol 105:1130-1140.

AL Wong, M Shelhamer (2011) Saccade adaptation improves in response to a gradually introduced stimulus perturbation. Neurosci Lett 500:207-211.

AL Wong, M Shelhamer (in press) Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. PLoS ONE.











Student Research