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2006
Kuiken, T. A., J. W. Sensinger, et al. (2006). Phantom Limb Sensory Feedback through nerve transfer surgery. American Academy of Orthotists and Prosthetists Scientific Symposium, Chicago.

Sensinger, J. W. and R. F. f. Weir (2006). Improved Torque Fidelity in Harmonic Drive Sensors through the Union of Two Existing Strategies. IEEE/ASME Transactions on Mechatronics.

Sensinger, J. W. and R. F. f. Weir (2006). Impedance Control Using a Compact Series Elastic Actuator. IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications, Beijing, China.

Sensinger, J. W. and R. F. f. Weir (2006). Improvements to Series Elastic Actuators. IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications, Beijing, China.
 
Sensinger, J. W. and R. F. f. Weir (2006). Non-backdrivable Impedance Control. Robotics: Science and Systems; Robotic Systems for Rehabilitation, Exoskeleton, and Prosthetics Workshop, Philadelphia, PA.
 
Sensinger, J. W. and R. F. f. Weir (2006). Biomimetic Control of Traditional Prostheses. American Academy of Orthotists and Prosthetists Scientific Symposium, Chicago.
 
Sensinger, J. W., B. A. Lock, et al. (2006). Physiological differences in targeted hyper-reinervation subject's force perception. Biomedical Engineering Society Annual Meeting, Chicago, IL.

Sensinger, J. W. and R. F. f. Weir (2006). User-modulated Impedance Control. Biomedical Engineering Society Annual Meeting, Chicago, IL.

2005
Kuiken, T. A., J. W. Sensinger, et al. (2005). Phantom Limb Sensory Feedback through nerve transfer surgery. Myoelectric Controls Symposium, New Brunswick.
 
Sensinger, J. W. and R. F. f. Weir (2005). Non-Backdrivable Series Elastic Actuator For Use In A Prosthetic Elbow. Myoelectric Controls Symposium, New Brunswick.

Sensinger, J. W. and R. F. f. Weir (2005). Design and Analysis of Non-backdrivable Series Elastic Actuators. IEEE 9th International Conference on Rehabilitation Robotics, Chicago.

2003
Ajiboye, A. B., Weir, R. F. ff., Heckathorne, C. W., (2003). EMG Pattern Recognition Using Fuzzy Logic For The Control of Multifunctional Myoelectric Trans-Radial Prostheses. Submitted to IEEE Transactions on Biomedical Engineering (TBME-00520-2003).

Childress, D. S., and Weir, R. F. ff., (2003). Control of Limb Prostheses. Invited Chapter, Atlas of Limb Prosthetics (3rd Edition), American Academy of Orthopaedic Surgeons (AAOS), Submitted May 2003.

Weir, R. F. ff., Troyk, P. R., DeMichele, G., Kuiken, T., (2003). Implantable Myoelectric Sensors (IMES) for Upper-Extremity Prosthesis Control – Preliminary Work. Proceedings of the 25th Silver Anniversary International Conference of the IEEE Engineering In Medicine and Biology Society (EMBS), Cancun, Mexico, September 17th – 21st, 2003.

Weir, R. F. ff., and Ajiboye, A. B., (2003). A Multifunction Prosthesis Controller based on Fuzzy-Logic Techniques. Proceedings of the 25th Silver Anniversary International Conference of the IEEE Engineering In Medicine and Biology Society (EMBS), Cancun, Mexico, September 17th – 21st, 2003.

Weir, R. F. ff., (2003). The Great Divide – The Human-Machine Interface: Issues in the Control of Prostheses, Manipulators, and other Human Machine Systems. Invited Paper, Proceedings of the 29th Annual Northeast Bioengineering Conference, New Jersey Institute of Technology, New Jersey, March 22nd - 23rd, 2003.

Weir, R. F. ff., (2003). Design of Artificial Arms and Hands for Prosthetic Applications. Invited Chapter (Chapter 32) in Standard Handbook of Biomedical Engineering & Design. Myer Kutz, Editor, McGraw-Hill, New York, pp. 32.1 – 32.61.

Weir, R. F. ff., (2003). Issues in the Control of Prostheses, Manipulators, and other Human Machine Systems. Invited Lecture, Third Annual Meeting of Centers for Research on Neurorehabilitation (CARN), NIH R24 Grant HD39627-03 "Restoration of Function in Neurologic Impairment", Harrison Conference Center, Lake Bluff, Illinois, June 13-15, 2003.

Weir, R. F. ff., (2003). Northwestern University/MTS Transponder System: a Proof-of-Concept System for Implantable Myoelectric Sensors (IMES). Third Annual Meeting of Centers for Research on Neurorehabilitation (CARN), NIH R24 Grant HD39627-03 "Restoration of Function in Neurologic Impairment", Harrison Conference Center, Lake Bluff, Illinois, June 13-15, 2003.

Weir, R. F. ff., (2003). The Great Divide – The Human-Machine Interface: Issues in the Control of Prostheses, Manipulators, and other Human Machine Systems. Plenary Speaker, Rehabilitation Engineering Track, 29th Annual Northwest Bioengineering Conference, New Jersey Institute of Technology, New Jersey, March 22nd - 23rd, 2003

2002
Ajiboye, A. B., Weir, R. F. ff., Heckathorne, C. W. and Childress, D. S., (2002). Neurofuzzy Logic as a Control Algorithm for an Externally Powered Multifunctional Hand Prosthesis. Proceedings of the Myoelectric Controls Conference (MEC2002), Fredericton, New Brunswick, Canada, August 19th - 23rd, University of New Brunswick, New Brunswick, Canada.

Al-angari, H. M., Weir, R. F. ff., Heckathorne, C. W. and Childress, D. S., (2002). A Two Degree-of-Freedom Microprocessor Based Extended Physiological Proprioception (EPP) Controller for Upper Limb Prostheses. Technology and Disability, Vol. 15, No. 2, pp. 113 – 127.

Farrell, T. R., Weir, R. F. ff., Heckathorne, C. W. and Childress, D. S., (2002). Real-Time Computer Modeling of a Prosthesis Controller Based on Extended Physiological Proprioception (EPP). Proceedings of the Myoelectric Controls Conference (MEC2002), Fredericton, New Brunswick, Canada, August 19th - 23rd, University of New Brunswick, New Brunswick, Canada.

Weir, R. F. ff., and Childress, D. S., (2002). Design Issues in The Development of a Four Degree-of-Freedom Multifunctional Prosthetic Hand. Proceedings of the VA Rehabilitation Research & Development Service 3rd National Meeting, "Rehabilitation Research for the 21th Century: The New Challenges" , Crystal Gateway Marriott, Arlington, VA, February 10th - 12nd, 2002, p.121.

Weir, R. F. ff., (2002). Design of a Clinically Viable Multifunctional Prosthetic Hand. Invited Paper, Proceedings of the Myoelectric Controls Conference (MEC2002), Fredericton, New Brunswick, Canada, August 19th - 23rd, University of New Brunswick, New Brunswick, Canada.

Weir, R. F. ff., and Grahn, E. C., (2002). A Myoelectrically Controlled Prosthetic Hand for Transmetacarpal Amputations. Invited Paper, Proceedings of the Myoelectric Controls Conference (MEC2002), Fredericton, New Brunswick, Canada, August 19th - 23rd, University of New Brunswick, New Brunswick, Canada.

Weir, R. F. ff., (2002). Robotics and Manipulators. Invited Chapter (Chapter 17) in: The Clinician's Guide to Assistive Technology, D. A. Olson and F. DeRuyter (Editors). St. Louis: Mosby, Inc., pp. 281 – 293.

Weir, R. F. ff., (2002). Prosthetics Hardware, Invited Speaker, Proceedings of the Myoelectric Controls Conference (MEC2002), Fredericton, New Brunswick, Canada, August 19th - 23rd, University of New Brunswick, New Brunswick, Canada.

2001
Heckathorne, C. W., Hungspreugs, P., and Weir, R. F. ff.,(2001). Developments in Upper Extremity Prosthetic Devices. Sensory Motor Performance Program (SMPP) laboratory meeting, SMPP Conference Room, Rehabilitation Institute of Chicago, Illinois, July 26th, 2001.

Weir, R. F. ff., Heckathorne, C. W., and Childress, D. S., (2001). Cineplasty as a Control Input for Externally Powered Prosthetic Components . Journal of Rehabilitation Research and Development. Vol. 38, No. 4, July/August 2001 , pp. 357 - 363.

Weir, R. F. ff., Grahn, E. C. , and Duff, S. J., (2001). A New Externally-Powered, Myoelectrically Controlled Prosthesis for Persons with Partial Hand Amputations at the Metacarpals. Journal of Prosthetics and Orthotics. Vol. 12, No. 2, pp. 26 - 31, June 2001.

Weir, R. F. ff.,and Childress, D. S., (2001). Die Kineplastik zur Steuerung von Fremdkraftprothesen . Medizinisch-Orthopädische Technik. No. 121, pp. 9 - 12, January.

Weir, R. F. ff., (2001). Development of a New Partial Hand Prosthesis . Capabilities, Vol. 10, No. 2, April 2001 , pp. 1-3,11.

Weir, R. F. ff.,and Grahn, E. C. , (2001). A New Externally-Powered Hand Prosthesis for Persons with Partial-Hand Amputations. Proceedings of the 10th World Congress of the International Society for Prosthetics and Orthotics (ISPO) , Glasgow, UK, July 1st - July 6th, p. MO6.6.

Weir, R. F. ff., Grahn, E. C., Duff, S. J., and Childress, D. S., (2001). Development of an Externally-Powered, Myoelectrically Controlled Hand Prosthesis for Persons with Partial Hand Amputations . Proceedings of the VA Rehabilitation Research & Development Service meeting " Intellectual Property In The VA: Changes, Challenges & Collaborations ", April 12th & 13th, 2001, Crystal Gateway Marriott, Arlington, VA, p. 07.

Weir, R. F. ff., Grahn, E. C. , and Duff, S. J., (2001). A New Externally-Powered, Myoelectrically Controlled Hand Prosthesis For Persons With Partial Hand Amputations. Proceedings of the Annual Meeting and Scientific Symposium of the American Academy of Orthotists and Prosthetists (AAOP), Dallas, TX, March 8th - 10th.

2000
Weir, R. F. ff., Childress, D.S., and Grahn, E.C., "Development of Externally-Powered Prostheses for Persons with Partial Hand Amputations." Accepted for Presentation the Chicago 2000 World Congress on Medical Physics and Biomedical Engineering. Chicago, Illinois. July 23 - 28, 2000.

Weir, R. F. ff., Childress, D. S., and Grahn, E. C., "Development of an Externally Powered Prosthetic Hand for Persons with Partial Hand Amputations." Proceedings of the VA Rehabilitation Research & Development Service 2nd Annual Meeting, "The Next Generation", Crystal Gateway Marriott, Arlington, VA, February 20 - 22, 2000, p122.

Hungspreugs, P., Heckathorne, C.W., and Childress, D.S., "Computer Simulation Tool for Upper-Limb Prosthesis Design", Chicago 2000 World Congress on Medical Physics and Biomedical Engineering. Chicago, Illinois. July 23 - 28, 2000.

1999
Uellendahl, J.E., and Heckathorne, C.W., "Experience with the Rimjet Locking Humeral Rotator," MyoElectric Controls/Powered Prosthetics Symposium, Fredericton, New Brunswick, Canada, August 25 - 27 1999.

Weir, R.F., Childress, D.S., and Grahn, E.C., "Development of an Externally Powered Prosthetic Hand for persons with Partial Hand Amputations", submitted for consideration as a poster presentation at the 2nd National Meeting of the VA Rehabilitation Research and Development Service, Sept. 16, 1999.

1998
Bertos, Y. A., Weir, R. F. ff., Heckathorne, C. W., and Childress, D. S., " A Microprocessor Based E.P.P. Controller for Electric-Powered Prostheses". Proceedings of the 9th World Congress of International Society for Prosthetics and Orthotics,(ISPO), pp. 339-341. Amsterdam, The Netherlands, June 28 – July 3, 1998.

Childress, D.S., "Control Strategy for Upper-limb Prostheses", 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, October 29 to 1 November , 1998, Hong Kong

Childress, D.S., Wier R. F. ff., & Heckathorne, C.W., "Integration of Below-Elbow Prostheses with the Human Body: Principles and Possibilities", 9th World Congress of International Society for Prosthetics and Orthotics,(ISPO) pp. 604-609. Amsterdam, June 28 – July 3, 1998

Grahn, E., Heckathorne, C., McCall , R, and Childress, D.S., "Designs for Humeral Rotation Mechanisms" Proceedings of the IX World Congress of the International Society for Prosthetics and Orthotics, (ISPO), pp. 610-611. Amsterdam, The Netherlands, June 28 – July 3, 1998

Heckathorne, C.W., "Current Practice and Trends in Upper Limb Prosthetics" Proceedings of the IX World Congress of the International Society for Prosthetics and Orthotics, (ISPO), pp.106-108, Amsterdam, The Netherlands, June 29 – July 3, 1998.

Heckathorne, C.W., Grahn, E., McCall, R., and Childress, D.S., "Designs for Humeral Rotation Mechanisms", Proceedings of the IX World Congress of the International Society for Prosthetics and Orthotics, (ISPO), pp. 601-602. Amsterdam, The Netherlands, June 28 – July 3, 1998.

Heckathorne, C. W., Duff, S., Uellendahl, J. E. and Childress, D. S., "The Trans-Humeral Four-Function Forearm Set-up", Proceedings of the IX World Congress of the International Society for Prosthetics and Orthotics, pp. 601-603, Amsterdam, The Netherlands, June 28-July 3, 1998.

Heckathorne, C.W., Duff. S., Uellendahl, J. and Childress, D.S., "The trans-humeral four-function forearm set-up". Proceedings of the 9th World Congress of International Society for Prosthetics and Orthotics,(ISPO), pp. 601-602. Amsterdam, The Netherlands, June 28 – July 3, 1998.

Kuiken, T., "Neuromuscular Reorganization to Improve the Control of Myoelectric Prostheses". Proceedings of the 9th World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 658. Amsterdam, The Netherlands, June 28-July 5, 1998.

Kuiken, T., "An Economic Cosmetic Covering for Preparatory Prostheses", ". Proceedings of the 9th World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 736. Amsterdam, The Netherlands, June 28-July 5, 1998.

Weir, R.F. ff., and Childress, D.S. and Licameli, J.N., "Motor Prostheses and the Lack of Physiologically Appropriate Feedback: Their function and connections with Manipulators, Robots and other Human-Machine Systems". Human and Machine Haptics, Section 3.21. Eds: M. Cutkosky & Srinivasan, (MIT Press); March 98

Weir, R. F. ff., "A Century of the Sauerbruch-Lebsche-Vanghetti Muscle Cineplasty: The U. S. Experience". Proceedings of the 9th World Congress of the International Society for Prosthetics and Orthotics (ISPO), pp. 198-199. Amsterdam, The Netherlands, June 28-July 3, 1998.

Weir, R.F. ff., Childress, D.S., and Heckathorne, C.W., "Towards Achieving the Goal of Meaningful Coordinated, Subconscious, Multi-Functional, Control of Prostheses". Proceedings of the VA Rehabilitation Research & Development Service 1st Annual Meeting, "Enabling Veterans: Meeting the Challenge of Rehabilitation in the Next Millennium" Westin City Center Hotel, Washington, D.C., October 1 -3, 1998, p. 192.

Weir, R. F. ff., "A Century of the Sauerbruch-Lebsche-Vanghetti Muscle Cineplasty: The U. S. Experience". Capabilities, Vol.7, No 4, October 1998, pp 1-2 &10-11.

Weir R. F. ff., "Design Issues for the Development of an Externally-Powered Partial-Hand Prosthesis" Proceedings of the 1998 ASME Mechanical Engineering Congress and Exposition, Anaheim, California, BED-Vol. 39, Advances in Bioengineering , pp. 313 -314, November 15 - 20, 1998

1997
Bertos, Y.A., Craig W. Heckathorne, Richard F. ff Weir and Dudley S. Childress, "Microprocessor Based E.P.P. Position Controller for Electric-Powered Upper- Limb Prostheses", published in the Final Program & Abstract Book, 19th Annual International Conference of the IEEE-EMB Society, pg. 161, Oct. 30-Nov. 2, 1997.

Childress, D. S., " The Blatchford Lecture "Prosthetic Rehabilitation for Upper Limb Deficiency", Conference Proceedings of the International Society for Prosthetics and Orthotics , Silver Jubilee Annual Scientific Meeting Oct. 23-25, 1997.

Heckathorne, C. W., Atkins, D. J., Heard, D.C.Y., and Donovan, W.H., "Partial Results from the TIRR Upper-Extremity Bilateral Prosthetic Survey", Proceedings of the AAOP 20th Annual Meeting and Scientific Symposium, March 12, 1997.

Heckathorne, C.W., Atkins, D.J., Heard, D.C.Y., and Donovan, W.H., "Results from the TIRR Upper-Extremity bilateral Prosthetic Survey", Journal of Proceedings of the American Academy of Orthotists and Prosthetists Twenty-third Annual Meeting and Scientific Symposium, pp.31-32, 1997.

Uellendahl, J.E., and Heckathorne, C.W., "Management of the Person with High-Level Bilateral Arm Amputations", Proceedings of MEC ’97: Issues in Upper Limb Prosthetics/MyoElectric Controls/Powered Prosthetics Symposium, Fredericton, New Brunswick), pp. 17 –20, July 23-25, 1997.

Uellendahl, J.E. and Childress, D. S., "Management of the Person with High-Level Bilateral Arm Amputations" Proceedings of the MEC ‘97 Myoelectric Controls/Powered Prosthetics Symposium, July 23-25, 1997, Fredericton, NB, Canada.

Weir, R.F. ff., "Robotics/ Manipulators" The Clinician’s Guide to Assistive Technology, F. DeRuyter and D. A. Olson (Editors). Chicag Mosby -Year Book, Inc November 1997

1996
Heckathorne, C., MSc, Atkins, D.J., OTR, Heard, D.C.Y., MSE, and Donovan, W.H., Partial Results from the TIRR Upper - Extremity Bilateral Prosthetic Survey, Abstract submitted to the AAOP, 2 December 1996.

Heckathorne, MSc., Uellendahl, J., CPO, Meredith, J., OTR, Wu, Y., and Childress, D., "Seven Year Follow-Up of a Person with Bilateral Shoulder Disarticulations," Abstract submitted to the AAOP, 2 December 1996.

1995
Childress, D., and Weir, R.F., Quantitative Assessment of Direct Muscle Attachment As A Control Input For Extrenally Powered Prostheses, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 101, Melbourne, Austalia, 2 April - 7 April 1995.

Childress, D., Myoelectric Control: Brief History, Signal Origins, and Signal Processing, Presented at the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), Melbourne, Australia, 2 April - 7 April 1995.

Heckathorne, C., Uellendahl, J., and Duff, S., Clinical Experiences With The MICA Positive-Locking Shoulder Joint, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 225, Melbourne, Australia, 2 April - 7 April 1995.

Heckathorne, C., Childress, D., Grahn, E., Strysik, J., and Uellendahl, J., EPP Control Of An Electric Hand By Exteriorized Forearm Tendons, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 101, Melbourne, Australia, 2 April - 7 April 1995.

Heckathorne, C., Toth, P., and Childress, D., The Role Of The Non-Dominant Hand In Manipulative Tasks, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 146, Melbourne, Australia, 2 April - 7 April 1995.

Meredith, J., Uellendahl, J., Wu, Y., Child Care With Bilateral Transradial Amputations, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 86, Melbourne, Australia, 2 April - 7 April 1995.

Uellendahl, J.E., Cooper, R.A., and Childress, D.S., Principals and Practice of Myoelectric Technology, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 228, Melbourne, Australia, 2 April - 7 April 1995.

Uellendahl, J., Heckathorne, C., Krick, H., McCauley, J., and Wu, Y., Bilateral Shoulder Disarticulation: Self - Care and Use of Complementary Hybrid Prostheses, Proceedings of the Eighth World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 156, Melbourne, Australia, 2 April - 7 April 1995.

1994
Uellendahl, J.E., Heckathorne, C.W., Control Schemes for Upper Limb Prostheses, Proceedings of the AAOP 20th Annual Meeting & Scientific Symposium, p. 48, March 23-26, 1994, Nashville, TN.

1993
Childress, D.S., Heckathorne, C.W., Grahn, E.C., Control of Prostheses by Direct Attachment: Challenges and Opportunities, Section I, Japanese Society of Prosthetics and Orthotics, 8/93.

Childress, D.S., Grahn, E.C., and Uellendahl, J., The Synergetic Hand: A High-Performance Electric Prehensor, J. of Proceedings of the American Academy of Orthotists and Prosthetists 19th Annual Meeting and Scientific Symposium, p. 39, Las Vegas, NV, March 30-April 3, 1993, p. 14.

Childress, D.S., Grahn, E.C., Weir, R., Heckathorne, C., Uellendahl, J., Modification of a Bock Electric Hand for E.P.P. Control by Exteriorized Tendons, J. of Proceedings of the American Academy of Orthotists and Prosthetists 19th Annual Meeting and Scientific Symposium, p. 13, Las Vegas, NV, 1993.

Heckathorne, C., Uellendahl, J., Sheely, J., Wu, Y., Design of an Arm Prosthesis for a Person with Quadrimembral Amputations and Paraplegia, J. of Proceedings of the American Academy of Orthotists and Prosthetists 19th Annual Meeting and Scientific Symposium, p. 23, Las Vegas, NV, 1993.

Heckathorne, C.W., Pettersson, S.O., Edman, M., Erickson, "A Total Arm Prosthesis to Complement the Function of a Longitudinally Deficient Limb for a Young Child, J. of Association of Children's Prosthetic-Orthotic Clinics (JACPOC) Annual Meeting, Vol. 28, pp. 23-24, May 19-23, 1993, Tampa, Florida

Heckathorne, C.W., Arm Prostheses for Children with Deficiencies Proximal to the Elbow: Designs Developed at the Orebro Medical Center, Sweden, J. of Association of Children's Prosthetic-Orthotic Clinics (JACPOC) Annual Meeting, Vol. 28, pp. 22-23, May 19-23, 1993, Tampa, Florida

Meredith, J.M., Uellendahl, J., Heckathorne, C., Krick, H., Wu, Y., Bilateral Shoulder Disarticulation: Self-care and Use of Complementary Hybrid Prostheses, Proceedings of the Myoelectric Control Symposium, pp. 153-158, University of New Brunswick, 1993

Meredith, J.M. Uellendahl, J.E., and Keagy, R.D., Successful Voluntary Grasp and Release Using the Cookie Crusher Myoelectric Hand in 2 - Year - Olds, American Journal of Occupational Therapy, pp. 825 - 829, 29 March 1993.

Uellendahl, J., Heckathorne, C.W., Prosthetic Component Control Schemes for Bilateral Above-Elbow Prostheses, Proceedings of the Myoelectric Control Symposium, University of New Brunswick, pp. 3-5 , 25 Feb. 1993.

1992
Gard, S.A., Childress, D.S., Heckathorne, C.W., A Micropower, Strain Gauge Sampling Circuit for Use in Prosthetic Limbs. Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 69, Chicago, IL, 28 June-3 July 1992.

Gard, S.A., Childress, D.S., Heckathorne, C.W., Micropower, Strain-Gauge Sampling Circuit for Prosthetic Limb Applications, Medical and Biological Engineering & Computing, Vol. 30, pp. 243-247, March, 1992.

Heckathorne, C.W., Philipson, L., Hermansson, L., Childress, D.S., Extended Physiological Proprioception for Children's Electrical Prostheses, Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 317, Chicago, IL, 28 June-3 July 1992.

Heckathorne, C.W., Uellendahl, J., Childress, D.S., Application of a Force-Actuated Position-Servo Controller for Electric Elbows, Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 315, Chicago, IL, 28 June-3 July 1992.

Heckathorne, C.W., Components for Adult Externally Powered Systems, Atlas of Limb Prosthetics: Surgical, Prosthetic and Rehabilitation Principles, 2nd Edition, Chapter 6C, Eds., J.H. Bowker and J.W. Michael, Mosby Yearbook, Inc., St. Louis, MO, 1992.

Heckathorne, C., Redding, M., Childress, D., Uellendahl, J., Visualizing Spatial and Positioning Characteristics of Upper-Limb Prostheses, Proceedings of the Seventh World Congress of the International Society of Prosthetics and Orthotics (ISPO), p. 385, Chicago, IL, 28 June-3 July 1992.

Knox, E.H., and Childress, D.S., Slip Detection and Automatic Grasping for a Prosthetic Prehensor, Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 189, Chicago, IL, June 28-July 3, 1992.

Redding, M.J., Heckathorne, C.W., Childress, D.S., A Computer-Based Visualization Tool for the Design of Upper-Limb Prostheses, Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 387, Chicago, IL, 28 June-3 July 1992.

Uellendahl, J.E., Heckathorne, C.W., Clinical Fitting of High Level Bilateral Amputees, Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 465, Chicago, IL, 28 June-3 July 1992.

Weir, R.F., Childress, D.S., Measurement of the Ability of Direct Muscle Attachment to Act as a Control Input for Prosthesis Controllers, Proceedings of the Seventh World Congress of the International Society for Prosthetics and Orthotics (ISPO), p. 310, Chicago, IL, 28 June-3 July 1992.

1990
Childress, D.S., Heckathorne, C.W., Grahn, E.C., Strysik, J.S., Krick, H.J., Improvement of Body-Powered Upper-Extremity Prosthetic Components: A Modular Electromechanical Lock Actuator--A Positive-Locking Shoulder, Rehabilitation R & D Progress Reports , pp. 15-16, 1990.

Heckathorne, C.W., Childress, D., Krick, H., Uellendahl, J., Physiological Control and Body-Powered, Multi-Joint, Locking Arm Prostheses, American Orthotic and Prosthetic Association Almanac, p. 117, January 1990.

Heckathorne, C.W., Manipulation in Unstructured Environments: Extended Physiological Proprioception Position Control, and Arm Prostheses, Proceedings of the 1990 International Conference on Rehabilitation Robotics, pp. 39-54, Wilmington, Delaware, June 14-15, 1990.

Heckathorne, C.W., Uellendahl, J., Socket Design for a Prototype E.P.P. Shoulder Disarticulation Prosthesis, Proceedings of the RESNA 13th Annual Conference, Washington, DC, June 15-20, 1990, pp. 232-233.

Heckathorne, C.W., Krick, H., Uellendahl, J., Wu, Y., Childress, D.S., Achieving Complementary Manipulative Function with Bilateral Hybrid Upper-Limb Prostheses, Archives of Physical Medicine and Rehabilitation, Vol. 71, No. 10, pp. 773-774, October, 1990.

Uellendahl, J., Heckathorne, C.W., Krick, H., Duff, S., Four-Function Hybrid Arm Prosthesis Incorporating an Electric Wrist Rotator and Prototype Electric Prehensor, Proceedings of the RESNA 13th Annual Conference, Washington, DC , June 15-20, 1990, pp. 167-168.