Neuro-Mechanical Control:
Interaction Between Neural Circuits and Biomechanics

June 1-6, 1996
Deer Creek Resort and Conference Center
Mt. Sterling, Ohio
(40 miles south of Columbus)

Conference Chair
Patrick Crago
Biomedical Engineering Department
Case Western Reserve University
Applied Neural Control Laboratory
Charles B. Bolton Building #3480
Cleveland, OH 44106
216-368-3977; Fax: 216-368-4872; E-mail:

Conference Co-Chair
Jack Winters
Biomedical Engineering Program
Catholic University of America
Room 105 Pangborn Hall
620 Michigan Avenue
Washington, DC 20064
202-319-5843; Fax: 202-319-4499; E-mail:

Engineering Foundation Conferences
345 East 47th Street New York, NY 10017
212-705-7836; Fax: 212-705-7441; E-mail:
World Wide Web:

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Organizing Committee
Zev Rymer
Rehabilitation Institute of Chicago
Chicago and Northwestern University, USA

Dick Stein
University of Alberta
Edmonton, Alberta, Canada

Gerald Loeb
Queen's University
Kingston, Ontario, Canada

Tamar Flash
Weizmann Institute of Science
Rehovot, Israel

Frans van der Helm
Delft University of Technology
Delft, The Netherlands

Poster Coordinator
Robert F. Kirsch
Case Western Reserve University
Cleveland, OH, USA

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Saturday, June 1, 1996
3:00 pm - 6:00 pm

6:00 pm - 7:30 pm

7:30 pm - 10:00 pm
Opening Reception

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Sunday, June 2, 1996

9:30 am - 11:30 am
Sunday Brunch

11:45 am - 12:00 noon
Welcome and Introduction

Chair: Pat Crago, Case Western Reserve University
Co-Chair: Jack Winters, Catholic University of America
Engineering Foundation: Will Durfee, University of Minnesota

12:00 noon - 3:00 pm
SESSION Ia: Neural and Muscular Properties Related to Control

Session Chair: Dick Stein, University of Alberta

Marc Binder, University of Washington
Rick Lieber, University of California, San Diego
Dick Stein, University of Alberta

Peter Huijing, Vrije Universiteit Amsterdam

Light Refreshments

3:00 pm - 5:00 pm
Ad hoc discussions/free time

5:00 pm - 6:15 pm

6:30 pm - 9:30 pm
SESSION Ib: Creating Neuro-Musculoskeletal Models

Session Chair: Jerry Loeb, Queen's University, Kingston

Felix Zajac, Stanford University
Rob Kearnery, McGill University
Jiping He, Arizona State University

A.J. Van Soest, Free University of Amsterdam
Pat Crago, Case Western Reserve University, OH

9:45 pm - 11:00 pm
Poster Session with Social Hour

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Monday, June 3, 1996
7:00 am - 8:30 am

8:45 am - 12:00 noon
SESSION IIa: Rhythmic Movements in Natural and Artificial Systems

Session Chair: Robert Full, University of California, Berkeley

Robert Full, University of California, Berkeley
Orjan Ekeberg, Royal Institute of Technology, Stockholm
James Abbas, University of Kentucky

Holk Cruise, University of Bielefeld, Germany
Blake Hannaford, University of Washington

12:15 pm - 1:30 pm

1:30 pm - 4:30 pm
Ad hoc discussions/free time

4:30 pm - 5:30 pm
Poster Session with Cash Bar

5:30 pm - 6:45 pm

7:00 pm - 9:30 pm
SESSION IIb: Posture and Balance on Earth and in Space

Session Chair: Fay B. Horak, RS Dow Neurological Sciences Institute

Fay B. Horak, RS Dow Neurological Sciences Institute
William H. Paloski, Space Biomedical Rseearch Institute, NASA
Dava Newman, MIT

Arthur Kuo, University of Michigan
Ron Jacobs, University of Twente

9:30 pm - 11:00 pm
Poster Session with Social Hour

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Tuesday, June 4, 1996

7:00 am - 8:30 am

8:45 am - 12:00 noon
SESSION IIIa: Neural and Mechanical Contributions to

Posture and Movement Control
Session Chair: W.Z. Rymer, Northwestern University

Reza Shadmehr, John Hopkins University
Daniel Wolpert, Institute of Neurology, London, England
Robert F. Kirsch, Case Western Reserve University

Gerald Gottlieb, Boston University

12:15 pm - 1:30 pm

1:30 pm - 4:30 pm
Ad hoc discussions/free time

4:30 pm - 5:30 pm
Poster Session with Cash Bar

5:30 pm - 6:45 pm

7:00 pm - 9:30 pm
SESSION IIIb: Movement Control in Relation to Dynamically

Changing Postural Force Fields
Session Chair: Tamar Flash, Weizmann Institute of Science, Israel

Andy Schwartz, LaJolla Neurosciences Institute
Bob Sainburg, Columbia University

Sandro Mussa-Ivaldi, Northwestern University
Lina Massone, Northwestern University

9:30 pm - 11:00 pm
Session with Social Hour

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Wednesday, June 5, 1996
7:00 am - 8:30 am Breakfast

8:45 am - 12:00 noon
SESSION IVa: Computational Approaches to Biological

Sensorimotor Systems
Session Chair: Frans van der Helm, Delft University of Technology

Frans van der Helm, Delft University of Technology
Herbert Hatze, University of Vienna, Austria
Yasuharu Koike, ATR Human Information Proc. Labs, Kyoto, Japan

A.J. VanSoest, Vrije Universiteit Amsterdam, The Netherlands

12:15 pm - 1:30 pm

1:30 pm - 4:30 pm
Ad hoc discussions/free time

4:30 pm - 5:30 pm
Poster Session with Cash Bar

5:30 pm - 6:45 pm

7:00 pm - 9:30 pm
SESSION IVb: Optimizing Human-Machine Interaction:

Applications in Rehabilitation
Session Chair: Jack Winters, Catholic University

Steve Lehman, University of California, Berkeley
Neville Hogan, Massachusetts Institute of Technology

Scott Delp, Nortwestern University
Jack Winters, Catholic University

9:30 pm - 11:00 pm
Poster Session with Social Hour

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Thursday, June 6, 1996

7:30 am - 9:30 am
Breakfast and Speaker

9:45 am - 11:00 am
Synthesis and Wrap-up Session

11:00 am - 11:45 am
New Chairpersons' Planning Session

12:00 noon
Lunch and Departure (Boxed Lunches Available with Prior Notification)

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"A Planar Manipulator for the Study of Multi-Joint Human Arm Posture and Movement Control"
Acosta, A. and Kirsch, R.F.
Case Western Reserve University

"Two-Thirds Power Law and Control Models"
Baraduc, P.
Universite Pierre et Marie Curie

"Kinematic Changes in Proprioceptive Placing After Spinal Cord Contusions in Rats"
Basso, D.M.
Ohio State University

"Sensorimotor Interactions in the Haptic Perception of Virtual Objects"
Beauregard, G. L., and Srinivasan, M.A.
Massachussets Institute of Technology

"On the Curvature of Goal-Directed Hand Movements"
Boessenkool, J.J., Nijhof, E.-J., and Erkelens, C. J.
Utrecht University

"Preflexes' - programmable, high-gain, Zero-Delay Intrinsic Responses of Perturbed Musculoskeletal Systems"
Brown, I.E., and Loeb, G.E.
Queens University

"Is Adaptive Learning Independent of Movement Kinematics?"
Conditt, M.A., Gandolfo, F., and Mussa-Ivaldi, F.A.
Northwestern University

"Modeling Directional Selectivity of Corticospinal Neurons Using Equilibrium Point Control"
Crowe, A.
University of Sheffield

"Index-Finger Motion, Forces and EMG During Touch-Typing: Is It a Ballistic Process?"
Dennerlein, J.T., Mote, Jr. C.D., and Rempel, D.M.
University of California, Berkeley

"Position Feedback Estimation Procedure in a Large-Scale Musculoskeletal System Via Extended Linearization"
Dhaher, Y.Y.
Michigan State University

"Investigating Intermittent Control of Human Arm Movements"
Doeringer, J.P., and Hogan, N.
Massachussets Institute of Technology

"A Method for the Quantitative Assessment of the Contribution of Correlated Motor Unit Discharges to Posture and Movement"
Donohoe, M., Rosenberg, J.R., Breeze, P., Halliday, D.M., and Conway, B.A.
University of Glasgow

"The Use of Mechanical Properties of the Human Body in CNS Control Strategies"
Dounskaia, N.V., Swinnen, S.P., Spaepen, A.J., and Verschueren, S.M.P.
Russian Academy of Science

"Is Spontaneous Rupture of the Human Achilles Tendon Related to Biomechanical and Neural Factors?"
Engstrom, C., Morgan, D., Neal R., Kippers, V., and Buckley, R.
University of Queensland

"Stability and Control of Passive Locomotion in 3-D"
Fowble, J.V., and Kuo, A.D.
University of Michigan

"Shoulder and Elbow Muscle Activity in Goal-Directed Arm Movements"
Gabriel, D.A.
Mayo Clinic

"Regulation of Force-Field Magnitude and Structure in the Reflex Responses of Spinal Frogs"
Giszter, S., Davies, M.R., and Kargo, W.
Medical College of Pennsylvania, Hahneman University

"Variation of Finger Tip Impedance in Pinch Grip"
Hajian , Aram Z., and Howe, R.D.
Harvard University

"Altered Gait Dynamics in the Elderly: Fractal Analysis of the Stride Interval"
Hausdorff, J.M., Mitchell, S.L., Edelberg, H.K., Wei, J.Y., and Goldberger, A.L.
Beth Israel Hospital

"EMG Responses to Multidirectional Surface Translations"
Henry, S.M., Fung, J., and Horak, F.B.
R.S. Dow Neurological Sciences Center

"Is the Force Constraint Strategy Used by Humans to Maintain Stance and Equilibrium?"
Horak, F., Fung, J., and Henry, S.M.
R.S. Dow Neurological Sciences Center

"A Simplified Control Strategy for Postural Coordination in Human"
Jacobs, R., Koopman, B., Veltin, B., Huijing, P., Nene, A., van der Kooij, H., and Grootenboer, H.
University of Twente

"Nonlinear Analysis of Central Pattern Generators Used for Controlling Locomotion: Characterizing Stability Regions, Bifurcation, Synchronization and Periodicity"
Jayasundera, S.P., and Abbas, J.J.
Catholic University

"The Inverted Pendulum Model - A Tool for Postural Control Analysis"
Karlsson, A., Persson, T., and Lanshammar, H.
Uppsala University

"Interrelation of Posturographic Parameters During Standing"
King, D.L., Zatsiorsky, V.M.
The Pennsylvania State University

"Identification of Multi-Input Dynamic Systems: Limb Stiffness Dynamics"
Kirsch, R.F., Perreault, E.J., and Acosta, A.M.
Case Western Reserve University

"Natural Joint-Rotations Applied in Human Arm-Movement Control"
Laczko, J., and Tihanyi, J.
Hungarian University of Physical Education

"Control of the Finger Intrinsic Muscles Using Functional Electrical Stimulation"
Lauer, R.T., Kilgore, K.L., and Peckham, P.H.
Case Western Reserve University

"Modeling and Simulation of Human Walking: Using a Neuro-Musculo-Skeletal Model to Design a Neural Prosthetic Device"
Leung, P.K., and Blum, E.K.
University of Southern California

"Change in Variability During Prolonged Downhill Running"
Li, L., Hardin, E., van Emmerik, R., Caldwell, G.E., and Hamill, J.
University of Massachussetts

"Lengthening Muscle Exhibits Minimal Damping Properties"
Lin, D.C., and Rymer, W.Z.
Northwestern University

"Shortening Induced Alterations in Isometric Length-Force Properties of Muscle"
Meijer, K., Grootenboer, H.J., Koopman, H.F.J.M., and Huijing, P.A.
University of Twente

"Anatomic Parameter Measurements for Use in the Modeling of Human Gait and in the Development of Lower Limb Neural Prostheses"
Miles, Douglas, J., Leung, P., and Blum E.K.
University of Southern California

"Elbow Muscle Architecture and Moment Arms in Differently Sized Specimens"
Murray, W.M., Wyles, D.L., Buchanan, T.S., and Delp, S.L.
Northwestern University

"Dynamic Simulation and Computer Animation of Extra-Vehicular Activity (EVA)- Spartan Payload Manipulation"
Newman, D., and Schaffner, G.
Massachussetts Institute of Technology

"Estimator Based Control Model of Human Adaptation to Reduced Gravity"
Newman, D., and Schultz, K.U.
Massachussetts Institute of Technology

"On Estimating Relative Postural Stability"
Paloski, W.H., and Nicholas S.C.
NASA / Johnson Space Center

"Is Spacticity the Primary Cause of COntractures in Post Stroke Hemiplegia?"
Pandyan, A.D., Granat, M.H., Cameron, M., and Stott, D.J.
University of Strathclyde

"A Portable Evaluation System Used to Study Postural Coordination During Seated Functional Tasks"
Pieters, T.
Catholic University of America

"The Coordination of Arm and Trunk Movements During Pointing in the Absence of Vision"
Pigeon, P., Feldman, A.G., and Yahia, L.'H.
Ecole Polytechnique de Montreal

"Determination of Preserved Working Space in Humans with Tetraplegia"
Popovic, M., and Popovic D.
University of Miami

"Development of a Method to Approximate the Pronation/Supination in a Dynamic Model of Rigid Bodies"
Reich, J., Daunicht, W.J., Hefter, H., and Freund, H.J.
Universitaet Deusseldorf

"A Device for Quantifying Workspace Deficits and Abnormal Synergetic Control After Stroke"
Reinkensmeyer, D.J., Lorber, D.M., and Rymer, W.Z.
Rehabilitation Institute of Chicago

"Trajectory Generation by Parametric Optimization to Predict the Kinematics and Kinetics of a Subject Rising from a Chair"
Riener, R., Bahrami, F., and Schmidt, G.
Technical University of Munich

"Physiologically Based Multi-Input Model of Artificial Muscle Activation"
Riener, R., Quintern, J., and Schmidt, G.
Technical University of Munich

"A Comparison of Single and Multi-Joint Arm Movements in the Horizontal Plane"
Scheidt, R.A., and Rymer, W.Z.
Northwestern University

"Reduced Reliance on Visual Feedbacks as a Function of Practice"
Seidler, R.D., and Stelmach, G.E.
Arizona State University

"The Visible Human Project- Applications in Biomechanical Modeling"
Sellberg, M.
Engineering Animation, Inc.

"A Quantitative Model for Implementation of Control Strategies During Postural Movements"
Sherkat, M.R., Barin K., Hemami, H., and Parnianpour, M.
Ohio State University

"The Effect of Estimation of Maximum Muscle Stress on the Predictions of an EMG-Based Model of Spinal Loading"
Sparto, P.J., Parnianpour, M., Marras, W.S., Granata, K.P., Reinsel, T.E., and Simon, S.R.
Ohio State University

"Multivariate Measures of Postural Control in Eight Astronauts"
Speers, R.A., Paloski, W.H., and Kuo A.D.
University of Michigan

"Phase Plane Analysis to Predict Onset of 'Preventive Stepping'"
Srikrishna, P., Krebs, D., and Young, L.
Harvard Medical School

"Learning Control of a Human Arm Model"
Stroeve, S.
Delft University of Technology

"The Effects of Load and Unexpected Delays, on Strech Reflexes of Human Elbow Muscles"
Tsaousidis, N.
Pennsylvania State University

"Artificial Neural Network Approaches to Pattern Recognition for Synergy Analysis of Electromyographic Data"
Tucker, C.A.
State University of New York at Buffalo

"Task-Dependent Activation Strategies of the Motoneuron Pool"
van Bolhuis, B.M., Medendorp, W.P., and Gielen, C.C.A.M.
University of Nijemegen

"Model Study of Fiber Behavior in Dynamic Pennate Skeletal Muscle"
van der Linden, B.J.J.J., Huijing, P.A., Koopman, H.F.J.M., and Grootenboer, H.J.
University of Twente

"A Possible Purpose of Naturally Occurring Cell Death, Modeled by Pruning a Neural Network"
van Heijst, J.J., and Vos J.E.
University of Groningen

"Muscle Spindle Ensemble Encoding of Human Movement: A Combined Experimental and Simulation Investigation of Goal Directed Movement"
Wallace, K.R., and Kerr, G.K.
University of Oxford

"An Algorithm for Controlling Three-Dimensional Arm Movements"
Weber, D.J., He, J.
Arizona State University

"Inverse Dynamics Analysis of Joint Torques Used in Balance Recovery After a Forward Fall"
Wojcik, L.A., Thelen, D.G., Ashton-Miller, J.A., Schultz, A.B., and Alexander, N.B.
University of Michigan

"Cutaneous Reflexes in Leg Muscles After Electrical Stimulation of the Dorsal Surface of the Foot Functionally Modify Human Walking"
Zehr, E.P., Komiyama, T., and Stein, R.B.
University of Alberta

"Numerical Stability in Direct Dynamics Simulation"
Zhao, W., and Wu, G.
Pennsylvania State University

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