Thomas A. Stoffregen, Ph.D. Professor Director, Affordance Perception-Action Laboratory Member, Center for Cognitive Sciences Graduate faculty, Department of Psychology Graduate faculty, Department of Industrial Engineering Graduate faculty, All University Graduate Minor in Human Factors/Ergonomics Graduate faculty, Graduate program in Neuroscience 224B Cooke Hall 1900 University Ave. S.E. Minneapolis, MN 55455 612-626-1056 voice 612-626-7700 fax tas@umn.edu

Areas of specialization
Perception and action, human factors, control of posture and orientation, ecological psychology.

Current research interests
Perception and control of body orientation, and its integration with simultaneous suprapostural action (research carried out in the context of human-computer interaction); postural stability and motion sickness in virtual environments; perception and control of the dynamics of actor-environment systems (i.e., perception and exploitation of affordances).

Academic degrees

• Ph.D., human experimental psychology, Cornell University, 1984
• B.A., psychology, with high honors, Oberlin College, 1979

Professional experience

• 2001-present, University of Minnesota
• 2005-present, visiting professor, University of Montpellier 1, France
• 2004-2005, faculty member, graduate program in motor control, Universities of Paris 5, 10, and 11, France
• 2000-present, visiting professor, University of Paris-Sud XI, France
• 1990-2001, University of Cincinnati
• 1998, visiting professor, University of the Mediterranean, France
• 1988-1990, University of Alabama
• 1986-1987, Computer Technology Associates, Inc., Lanham, MD
• 1985-1986, Wright-Patterson AFB, OH (NRC postdoctoral associate)
• 1984-1985, post-doctoral fellowship, Cornell University

Research support and awards

• Inducted as an Active Fellow of the American Academy of Kinesiology and Physical Education, 2007
• "Enactive Interfaces." A Network of Excellence of the European Comission, €5,000,000, 2004-2007
• "Postural instability & visually-induced motion sickness." National Institute of Deafness and Communication Disorders, $600,000, 2004-2007
• "MRI: Acquiring of Human Dimensioning Equipment for Product Development", National Science Foundation, $262,806, 2003-2006
• "Visual performance and the optical control of stance." National Science Foundation, $299,920. 2003-2006
• "Postural instability and motion sickness in head-mounted virtual environments." University of Minnesota Grant in Aid of Research, $25,000. 2002-2003
• "The Control of Posture: Information and Dynamics." Joint NSF/CNRS (US/French) award, $18,000 (solely for international travel). 1997-2000 (co-PI: Dr. B. G. Bardy)
• "Visual control of posture within the normal range of motion". National Science Foundation, $194,000. 1996-1999
• "Postural instability as an etiological factor in visually-induced motion sickness". Naval Air Warfare Center, $25,000. 1994-1996
• Faculty achievement award, University of Cincinnati, 1995
• Marquis Who's Who
• Lexington Who's Who
• Distinguished off-campus scholar, Miami University, appointed 1999
• Post-doctoral research associateship, the National Research Council, in the Flight Simulation Laboratory, Armstrong Aerospace Medical Research Laboratory, Wright-Patterson AFB, OH. 1985-86
• Post-doctoral fellowship, the Spenser Foundation, with Dr. Eleanor J. Gibson. 1984-85

Faculty and administrative load

Undergraduate teaching experience

• Motor Learning and Motor Development
• Perception & Action
• Introductory Statistics
• The Psychology of Spaceflight

Graduate teaching experience

• Human Factors Psychology
• Perception & Action
• Non-linear Dynamics
• Intermodal Perception
• Theory of Affordances

Other collegiate assignments

• College of Education and Human Development Promotion and Tenure Review Workgroup
• College of Education and Human Development Academic Uses of Technology Committee
• College of Education and Human Development Awards Committee

Professional and academic association memberships

• Society for Neuroscience
• International Society for Ecological Psychology
• American Psychological Society
• American Psychological Association, Division 3
• Psychonomic Society
• Sigma Xi
• Human Factors and Ergonomics Society

Professional assignments and activities

• Program chair, XV International Conference on Perception and Action, 2007, Minneapolis, MN
• Program co-chair for Psychophysics and Psychology of Action and Perception for the 2nd International Conference on Enactive Interfaces, November 17-18, 2005, Genoa, Italy
• Member, Scientific Committee, 11th International Conference of the Association des Chercheurs en Activités Physiques et Sportives, Paris, France (October 26-28, 2005)
• Consulting Editor for the Journal of Experimental Psychology: Human Perception & Performance (appointed 2004)
• Panelist, NSF Graduate Research Fellowship Program (2001, 2002, 2003, 2007)
• Advisory Board, The Handbook of Virtual Environments Technology
• Consulting Editor, Ecological Psychology (appointed 1996)

Publications

Prado, J. M., Duarte, M., & Stoffregen, T. A. (2007). Postural sway during dual tasks in young and elderly adults. Journal of Gerontology, 53, 274-281.

Merhi, O., Faugloire, E., Flanagan, M., & Stoffregen, T. A. (2007). Motion sickness, console video games, and head mounted displays. Human Factors, 49, 920-934.

Bardy, B. G., Oullier, O., Lagarde, J., & Stoffregen, T. A. (2007). On perturbation and pattern co-existence in postural coordination dynamics. Journal of Motor Behavior, 39, 326-334.

Stoffregen, T. A., Hove, P., Bardy, B. G., Riley, M. A., Bonnet, C. T. (2007). Postural stabilization of perceptual but not cognitive performance. Journal of Motor Behavior, 39, 126-138.

Stoffregen, T. A., Bardy, B. G., Bonnet, C. T., Hove, P., & Oullier, O. (2007). Postural sway and the frequency of horizontal eye movements. Motor Control, 11, 86-102.

Faugloire, E., Bonnet, C. T., Riley, M. A., Bardy, B. G., & Stoffregen, T. A. (2007). Motion sickness, body movement, and claustrophobia during passive restraint. Experimental Brain Research, 177, 520-532.

Faugloire, E., Bardy, B. G., & Stoffregen, T. A. (2006). The dynamics of learning new postural patterns. Journal of Motor Behavior, 38, 299-312.

Bonnet, C. T., Faugloire, E. M., Riley, M. A., Bardy, B. G., & Stoffregen, T. A. (2006). Motion sickness preceded by unstable displacements of the center of pressure. Human Movement Science, 25, 800-820.

Stoffregen, T. A., Bardy, B. G., Bonnet, C. T., & Pagulayan, R. J. (2006). Postural stabilization of visually guided eye movements. Ecological Psychology, 18, 191-222.

Stoffregen, T. A., Bardy, B. G., & Mantel, B. (2006). Affordances in the design of Enactive systems. Virtual Reality, 10, 4-10.

Stoffregen, T. A., Hove, P., Schmit, J., & Bardy, B. G. (2006). Voluntary and involuntary postural responses to imposed optic flow. Motor Control, 10, 24-33.

Faugloire, E., Bardy, B. G., Merhi, O., & Stoffregen, T. A. (2005). Exploring coordination dynamics of the postural system with real-time visual feedback. Neuroscience Letters, 374, 136-141.

Stoffregen, T. A., Yang, C. M., & Bardy, B. G. (2005). Affordance judgments and nonlocomotor body movement. Ecological Psychology, 17, 75-104.

Stoffregen, T. A., & Bardy, B. G. (2004). Theory testing and the global array. Behavioral and Brain Sciences, 27, 892-900.

Oullier, O., Bardy, B.G., Bootsma, R.J., & Stoffregen, T.A. (2004). L’émergence des états posturaux et de leurs changements. Cahiers de la Maison de la Recherche en Sciences Humaines et Sociales, 38, 187-204.

Stoffregen, T. A. (2004). There may not be an A not B error. Behavioral and Brain Sciences, 27, 708-709.

Stoffregen, T. A., Bardy, B. G., Merhi, O., & Oullier, O. (2004). Postural responses to two technologies for generating optical flow. Presence, 13, 601-615.

Stoffregen, T. A. (2004). Breadth and limits of the affordance concept. Ecological Psychology, 16, 79-85.

Oullier, O., Bardy, B. G., Stoffregen, T. A., & Bootsma, R. J. (2004). Task-specific stabilization of postural coordination during stance on a beam. Motor Control, 7, 174-187.

Stoffregen, T. A. (2003). Affordances as properties of the animal-environment system. Ecological Psychology, 15, 115-134.

Stoffregen, T. A. (2003). Affordances are enough: Reply to Chemero et al. (2003). Ecological Psychology, 15logy, 155, 29-36.

Smart, L. J., Stoffregen, T. A., & Bardy, B. G. (2002). Visually-induced motion sickness predicted by postural instability. Human Factors, 44, 451-465.

Bardy, B. G., Oullier, O., Bootsma, R. J. , & Stoffregen, T. A. (2002). The dynamics of human postural transitions. Journal of Experimental Psychology: Human Perception & Performance, 28, 499-514.

Oullier, O., Bardy, B. G., Stoffregen, T. A., & Bootsma, R. J. (2002). Postural coordination in looking and tracking tasks. Human Movement Science, 21, 147-167.

Stoffregen, T. A., Draper, M. H., Compton, D., & Kennedy, R. S. (2002). Vestibular aftereffects and adaptation in virtual environments. For the Handbook of Virtual Environments Technology (Chapter 39, pp. 773-790). Mahwah, NJ: Lawrence Erlbaum Associates, Inc.

Stoffregen, T. A., & Bardy, B. G. (2001). On specification and the senses. Behavioral and Brain Sciences, 24, 195-261.

Bardy, B. G., Oullier, O., Bootsma, R. J. , & Stoffregen, T. A. (2001). The dynamics of human postural transitions. Journal of Experimental Psychology: Human Perception & Performance, in press.

Stoffregen, T. A., Hettinger, L. J., Haas, M. W., Roe, M., & Smart, L. J. (2000). Postural instability and motion sickness in a fixed-base flight simulator. Human Factors, 42, 458-469.

Stoffregen, T. A. (2000). Affordances and events. Ecological Psychology , 12, 1-28 (target article).

Stoffregen, T. A. (2000). Affordances and events: Theory and research. Ecological Psychology, 12, 93-107 (reply to commentaries).

Stoffregen, T. A., Pagulayan, R. J., Bardy, B. G., & Hettinger, L. J. (2000). Modulating postural control to facilitate visual performance. Human Movement Science, 19, 203-220.

Stoffregen, T. A., Smart, L. J., Bardy, B. G., & Pagulayan, R. J. (1999). Postural stabilization of looking. Journal of Experimental Psychology: Human Perception & Performance, 25, 1641-1658.

Bardy, B. G., Marin, L., Stoffregen, T. A., & Bootsma, R. J. (1999). Postural coordination modes considered as emergent phenomena. Journal of Experimental Psychology: Human Perception & Performance, 25, 1284-1301.

Stoffregen, T. A., Gorday, K. M., Sheng, Y-Y., & Flynn, S. B. (1999). Perceiving affordances for another person's actions. Journal of Experimental Psychology: Human Perception & Performance, 25, 120-136.

Marin, L., Bardy, B. G., Baumberger, B., Fluckiger, M., & Stoffregen, T. A. (1999). Interaction between task demands and surface properties in the control of goal-oriented stance. Human Movement Science, 18, 31-47.

Riley, M. A., Stoffregen, T. A., Grocki, M. J., & Turvey, M. T. (1999). Postural stabilization for the control of touching. Human Movement Science, 18, 795-817.

Fouque, F., Bardy, B. G., Stoffregen, T. A., & Bootsma, R. B. (1999). Intermodal perception of orientation during goal-directed action. Ecological Psychology, 11, 45-79.

Stoffregen, T. A., & Smart, L. J. (1998). Postural instability precedes motion sickness. Brain Research Bulletin, 47, 437-448.

Smart, L. J., Pagulayan, R., & Stoffregen, T. A. (1998). Self-induced motion sickness in unperturbed stance. Brain Research Bulletin, 47 , 449-457.

Nelson, W. T., Hettinger, L. J., Haas, M. W., Warm, J. S., Dember, W. N., & Stoffregen, T. A. (1998). Compensation for the effects of time delay in a virtual environment. In R. R. Hoffman, M. F. Sherrick, and Joel S. Warm (Eds.), Viewing psychology as a whole (pp. 579-602). Washington, DC: American Psychological Association.

Stanney, K., Salvendy, G., Deisinger, J., DiZio, P., Ellis, S., Ellision, J., Fogleman, G., Gallimore, J., Hettinger, L., Kennedy, R., Lackner, J., Lawson, B., Maida, J., Mead, A., Mon-Williams, M., Newman, D., Piantanida, T., Reeves, L., Riedel, O., Singer, M., Stoffregen, T., Wann, J., Welch, R., Wilson, J., Witmer, R. (1998). Aftereffects and sense of presence in virtual environments: Formulation of a research and development agenda. Report sponsored by the Life Sciences Division at NASA Headquarters. International Journal of Human-Computer Interaction, 10, 135-187.

Flynn, S. B., & Stoffregen, T. A. (1998). Gibsonian theory in comparative psychology. In G. Greenberg & M. Haraway (Eds.), Comparative psychology: A handbook (pp. 120-127). New York: Garland.

Stoffregen, T. A. (1997a). Filming the world: An essay review of Anderson's The reality of illusion. Ecological Psychology, 9, 161-177.

Stoffregen, T. A. (1997b). Cybersickness: Motion sickness in virtual environments. In M. Cohen (Ed.), Proceedings of the International Workshop on Human Interface Technology (pp. 125-132). Aizu-Wakamatsu, Japan: The University of Aizu.

Riley, M. A., Mitra, S., Stoffregen, T. A., & Turvey, M. T. (1997). Influences of body lean and vision on unperturbed postural sway. Motor Control, 1, 229-246.

Stoffregen, T. A., Adolph, K. E., Thelen, E., Gorday, K. M., & Sheng, Y. Y. (1997). Toddlers' postural adaptations to different support surfaces. Motor Control, 1, 119-137.

Stoffregen, T. A. (1996). The senses as fiction [9 paragraphs]. Newsletter of the International Society for Ecological Psychology ychology [On-line serial], 22. Available E-mail: William.Mace@trincoll.edu.

Stoffregen, T. A., & Pittenger, J. B. (1995). Human echolocation as a basic form of perception and action. Ecological Psychology, 7, 181-216.

Stoffregen, T. A., Henderson, C. W., & Sasaki, M. (1995). Varying the t-margin. In B. G. Bardy, R. B. Bootsma, & Y. Guiard (Eds.), Studies in perception and action III (pp. 199-202). Mahwah, NJ: Lawrence Erlbaum Associates, Inc.

Flynn, S. B., & Stoffregen, T. A. (1995). Perceiving and avoiding rollover in agricultural tractors. In J. M. Flach, P. Hancock, J. Caird, & K. Vicente (Eds.), Local applications of the ecologial approach to human-machine systems (pp. 36-64). Hillsdale, NJ: Lawrence Erlbaum Associates.

Stoffregen, T. A. (1994). "Sensory" reference frames and the information for self-motion versus object motion. Behavioral and Brain Sciences, 17, 332-333.

Stoffregen, T. A., & Flynn, S. B. (1994). Visual perception of support surface deformability from human body kinematics. Ecological Psychology, 6,ology, 6, 33-64.

Stoffregen, T. A. (1993). "Natural", "real", and the use of non-physical displays in perception-action research. ISEP Newsletter, 6, 4-9.

Stoffregen, T. A., Baldwin, C. A., & Flynn, S. B. (1993). Noticing of unexpected events by mildly retarded and non-retarded adults. American Journal on Mental Retardation, 98, 273-284.

Stoffregen, T. A., & Flynn, S. B. (1993). Identification versus discrimination in the perception of dynamics. In S. Valenti and J. B. Pittenger (Eds.), Studies in Perception and Action II (pp. 36-39). Hillsdale, NJ: Erlbaum.

Henderson, C. W., Bush, J., & Stoffregen, T. A. (1993). Visual perception of caught weight. In S. Valenti and J. B. Pittenger (Eds.), Studies in Perception and Action II (pp. 40-43). Hillsdale, NJ: Erlbaum.

Riccio, G. E., Martin, E. J., & Stoffregen, T. A. (1992). The role of balance dynamics in the active perception of orientation. Journal of Experimental Psychology: Human Perception & Performance, 18, 624-644.

Stoffregen, T. A., & Riccio, G. E. (1991). An ecological critique of the sensory conflict theory of motion sickness. Ecological Psychology, 3, 159-194.

Riccio, G. E., & Stoffregen, T. A. (1991). An ecological theory of motion sickness and postural instability. Ecological Psychology, 3, 195-240.

Ad hoc reviewer

• Acta Psychologica
• Applied Ergonomics
• Behavioral and Brain Sciences
• Brain Research Bulletin
• Developmental Psychobiology
• Developmental Psychology
• Ecological Psychology
• Human Factors
• Journal of Experimental Psychology: Human Perception & Performance
• Journal of Gerontology: Psychological Sciences
• Journal of Motor Behavior
• Motor Control
• National Science Foundation
• Research Quarterly for Exercise and Sport
• Perception & Psychophysics
• Psychological Review, Psycolloquy

Papers presented

Stoffregen, T. A., & Merhi, O. (2005, July). Motion sickness and console video games. Talk presented at the 11th International Conference on Human-Computer Interation, Las Vegas, NV.

Stoffregen, T. A., & Bardy, B. G. (2005, July). Affordances and dynamics. Talk presented at the 13th International Conference on Perception and Action, Monterey, CA.

Stoffregen, T. A., & Chih-Mei Yang (2005, July). Exploratory movement in the perception of a novel affordance. Talk to be presented at the 13th International Conference on Perception and Action, Monterey, CA.

Oullier, O. Bardy, B. G., Bootsma, R. G., & Stoffregen, T. A. (2005, June). Intention modulates postural coordination dynamics. Poster presented at a meeting of the International Society for Posture and Gait Research, Marseille, France.

Yang, C.-M., Stoffregen, T. A., & Bardy, B. G. (2005, July). Postural sway supports affordance perception. Poster to be presented at the 13th International Conference on Perception and Action, Monterey, CA.

Bonnet, C. T., Stoffregen, T. A, & Bardy, B. G. (2005, July). Postural stabilization of looking: Eye movement data. Poster to be presented at the 13th International Conference on Perception and Action, Monterey, CA.

Kim, C., Stoffregen, T. A., Ito, K., & Bardy, B. G. (2005, July). Coupling of head and body movements to acoustic flow in sighted adults. Poster to be presented at the 13th International Conference on Perception and Action, Monterey, CA.

Mantel, B., Bardy, B. G., & Stoffregen, T. A. (2005, July). Intermodal specification of egocentric distance in a target reaching task. Poster to be presented at the 13th International Conference on Perception and Action, Monterey, CA.

Faugloire, E., Bardy, B. G., & Stoffregen, T. A. (2005, July). (De)Stabilization of required vs. spontaneous postural dynamics with learning. Poster to be presented at the 13th International Conference on Perception and Action, Monterey, CA.

Bardy, B. G., Faugloire, E., & Stoffregen, T. A. (2005, June). The dynamics of learning new postures. Poster to be presented at a meeting of the North American Society for the Psychology of Sport and Physical Activity.

Stoffregen, T. A. (2004, August). Exploratory movement in perception and action. Talk presented at the International Congress of Psychology, Beijing, China.

Bonnet, C., Bardy, B. G., & Stoffregen, T. A. (2004, November). Postural Stabilization of visually-guided eye movements. Poster presented at a meeting of the Psychonomic Society, Minneapolis, MN.

Stoffregen, T. A., Yang, C.-M., & Bardy, B. G. (2004, November). Body sway supports affordance learning. Poster presented at a meeting of the Psychonomic Society, Minneapolis, MN.

Merhi, O., & Stoffregen, T. A. (2004, September). Motion sickness, video games, and head-mounted displays. Poster presented at a meeting of the Human Factors and Ergonomics Society, New Orleans, LA.

Merhi, O., & Stoffregen, T. A. (2003, October). Task-specific postural responses to imposed optic flow. Poster presented at a symposium in honor of Eleanor J. Gibson, Cornell University.

Stoffregen, T. A., & Bardy, B. G. (November, 2003). Environments virtuelle et perception/action. Talk presented at the Xème Congrès International des Chercheurs en Activités Physiques et Sportives , Toulouse, France.

Stoffregen, T. A. (October, 2003). Higher order perceptual information and its emergence in the nervous system. Talk presented at a meeting of the Club Mouvement d'Ile de France, Paris, France.

Stoffregen, T. A., & Bardy, B. G. (2002, November). Virtual environments and the global array. Talk presented at the First International Workshop on Man-Machine Symbiotic Systems, Kyoto, Japan.

Stoffregen, T. A., & Yang, M. (2003, October). Postural learning supports affordance perception. Paper to be presented at a symposium in honor of Eleanor J. Gibson, Cornell University.

Ehrlacher , C., Bardy, B. G., Faugloire, E., & Stoffregen, T. A. (2003, July). Sports expertise influences learning of postural coordination. Poster to be presented at the XII International Conference on Perception and Action, Perth, Australia.

Faugloire, E., & Stoffregen, T.A. (2003, July). The dynamics of learning new postures. Poster to be presented at the XII International Conference on Perception and Action, Perth, Australia.

Stoffregen, T. A., & Bardy, B. G. (2002, October). Psychophysics in the Global Array. Talk presented at a meeting of the International Society for Psychophysics, Rio de Janeiro, Brazil.

Riley, M. A., Black, D. P., Stoffregen, T. A., & Balasubramaniam, R. (2001, October). Modulation of postural sway during manual aiming. Poster presented at a meeting of the Human Factors and Ergonomics Society, Minneapolis, MN.

Ito, K., Stoffregen, T. A., Donahue, S., Nelson G., & Takase, H. (2001, June). [The relationship between perceptual information and posture control of blind subjects.] Poster presented at a meeting of the Japanese Cognitive Science Society, Hakodate, Japan.

Ito, K., Stoffregen, T. A., Donahue, S., & Nelson G. (2001, June). Blind adults exhibit postural responses to a moving room. Poster presented at the XI International Conference on Perception and Action, Storrs, CT.

Pagulayan, R. J., Hayes, S., & Stoffregen, T. A. (2001, June). Postural learning supports visual signal detection. Poster presented at the XI International Conference on Perception and Action, Storrs, CT.

Stoffregen, T. A., & Bardy, B. G. (2001, June). An epistemology for multimodal perception. Poster presented at a meeting of the Society of Philosophy and Psychology, Cincinnati, OH.

Bardy, B. G., & Stoffregen, T. A. (2001, January). Perception intermodale et réalisme des environnements virtuels. Journée INRETS spécialisée "Facteurs perceptifs dans les activités de transport". Paris (France).

Stoffregen, T. A., & Bardy, B. G. (2000, October). Information supporting direct multimodal perception. Talk given at a meeting of the International Multisensory Research Forum, Tarrytown, NY.

Pagulayan, R. J., & Stoffregen, T. A. (August, 2000). Content versus graphics in the ecological design of interfaces. Poster presented at the IEA 2000/HFES 2000 Congress, San Diego.

Tannen, R. S., Nelson, W. T., Bolia, R. S., Haas, M. W., Hettinger, L. J., Warm, J. S., Dember, W. N., & Stoffregen, T. A. (August, 2000). Adaptive integration of head-coupled multi-sensory displays for target localization. Poster to be presented at the IEA 2000/HFES 2000 Congress, San Diego.

Stoffregen, T. A., & Bardy, B. G. (2000, July). Perception entre les sens. Talk given at the International Conference of the French Society of Sport Psychology, Paris.

Stoffregen, T. A., Nelson, G. K., Si, M., & Bardy, B. G. (1999, October). Postural responses to optical flow generated videographically and by physical displacement. Paper presented at the First International Workshop on Spatial Media, University of Aizu, Japan.

Moroney, B. S., Warm, J. S., Dember, W. N., Stoffregen, T. A., Hettinger, L. J., Nelson, W. T., & Haas, M. W. (October, 1999). Flight Path Navigation Aids: Audio, Visual, and Combined Formats. Poster presented at a meeting of the Human Factors and Ergonomics Society, Houston, TX.

Oullier, O., Bardy, B. G., Bootsma, R. J., & Stoffregen, T. A. (1999, August). On the dynamical nature of human postural transitions. Poster presented at the 10th International Conference on Perception and Action, Edinburgh, Scotland.

Oullier, O., Bardy, B. G., Stoffregen, T. A., & Bootsma, R. J. (July, 1999). Postural changes as non linear phase transitions. Poster presented at 14th Symposium of the International Society on Posture and Gait , Waterloo, Canada.

Stoffregen, T. A., Nelson, G. K., Pagulayan, R. J., & Bardy, B. G. (1999, May). Realism and reality in flight simulation. Talk presented at the 10th International Symposium on Aviation Psychology, Columbus, OH.

Oullier, O., Bardy, B. G., Bootsma, R. J., & Stoffregen, T. A. (February, 1999) . La dynamique des transitions posturales. Poster presented at Journée Scientifique de l'Institut des Sciences du Cerveau, Marseille, France.

Stoffregen, T. A., Hettinger, L. J., Haas, M., Roe, M., & Smart, L. J. (1998, October). Postural instability and motion sickness in a fixed-base flight simulator. Poster presented at the annual meeting of the Human Factors and Ergonomics Society, Chicago.

Pagulayan, R. J., Stoffregen, T. A., & Ueda, M. (1998, October). Relations between postural sway and visual performance. Poster presented at the annual meeting of the Human Factors and Ergonomics Society, Chicago.

Stoffregen, T. A., Bardy, B. G., Pagulayan, R. J., & Nelson, G. K. (1998, September). Realism and reality in virtual environments. Talk presented at the First International Conference on Humans and Computers, Aizu-Wakamatsu, Japan.

Stoffregen, T. A., & Ueda, M. (1998, July). Relating events and affordances. Talk presented at the 5th European Workshop on Ecological Psychology, Pont à Mousson, France.

Stoffregen, T. A. (1997b, August). Perception of affordances from dynamic displays. Talk presented at the Second International Conference on Cognitive Technology, Aizu-Wakamatsu, Japan.

Stoffregen, T. A., Gorday, K. M., Sheng, Y. Y., & Flynn, S. B. (1997, July). Kinematic specification of affordances. Poster presented at the 9th International Conference on Perception and Action, Toronto.

Stoffregen, T. A., & Smart, L. J. (1997, July). Postural stabilization of visual fixation. Poster presented at the 9th International Conference on Perception and Action, Toronto.

Marin, L., Bardy, B. G., Stoffregen, T. A., & Bootsma, R. J. (1997, June). Interaction between task demand and body properties in the optical control of stance. Poster presented at the 13th International Symposium on Posture and Gait, Paris.

Bardy, B. G., Marin, L., Stoffregen, T. A. & Bootmsa, R. J. (1997, June). A topological approach to postural coordination. Poster presented at the 13th International Symposium on Posture and Gait, Paris.

Fouque, F., Bardy, B. G., & Stoffregen, T. A. (1996, December). Effects de la stabilité posturale sur le couplage perception-action. Les 3emes Journées Nationales de Posturologie, Marseille, France.

Smart, L. J., & Stoffregen, T. A. (1996, November). Postural stabilization of vision. Poster presented at a meeting of the Psychonomic Society, Chicago.

Stoffregen, T. A., & Smart, L. J. (1996, March). Task-specific postural stabilization of vision. Poster presented at a meeting of the International Society for Ecological Psychology, Hartford, CT.

Flynn, S. B., Stoffregen, T. A., & Loewy, R. (1996, March). No role for standards in the ordination of caught weight from kinematic displays. Poster presented at a meeting of the International Society for Ecological Psychology, Hartford, CT.

Sheng, Y.-Y., Bingham, G. P., Rosenacker, S., & Stoffregen, T. A. (1996, March). Perception of human height from kinematic displays. Poster presented at a meeting of the International Society for Ecological Psychology, Hartford, CT.

Stoffregen, T. A., & Pittenger, J. B. (1995, July). Human echolocation as a basic form of perception and action. Poster presented at the 8th International Conference on Perception and Action, Marseilles, France. France.

Stoffregen, T. A., & Henderson, C. W. (1994, November). Scaling and the visual perception of caught weight. Paper presented at a meeting of the Psychonomic Society, St. Louis, MO.

Stoffregen, T. A. (March, 1994). Affordances for interceptive action. Paper presented at a meeting of the Southern Society for Philosophy and Psychology, Atlanta, GA.

Sheng, Y. Y., & Stoffregen, T. A. (March, 1994). Visual sensitivity to intra-body axis of rotation. Paper presented at a meeting of the Southern Society for Philosophy and Psychology, Atlanta, GA.

Stoffregen, T. A., & Flynn, S. B. (August, 1993). Identification versus discrimination in the kinematic perception of dynamics. Poster presented at the VII International Conference on Event Perception and Action, Vancouver, Canada.

Henderson, C. W., Bush, J., & Stoffregen, T. A. (August, 1993). Visual perception of caught weight. Poster presented at the VII International Conference on Event Perception and Action, Vancouver, Canada.

Flynn, S. B., & Stoffregen, T. A. (August, 1993). An ecological approach to tractor rollover. Poster presented at the VII International Conference on Event Perception and Action, Vancouver, Canada.

Stoffregen, T. A., Flynn, S. B. & Henderson, C. W. (April, 1993). Identification of support surface deformability from human, but not canine, kinematics. Paper presented at a meeting of the Southern Society for Philosophy and Psychology, New Orleans, LA.

Sheng, Y. Y., Henderson, C. W., & Stoffregen, T. A. (April, 1993). Perception of support surface rigidity from somatosensory stimulation. Paper presented at a meeting of the Southern Society for Philosophy and Psychology, New Orleans, LA. ans, LA.

Stoffregen, T. A., & Flynn, S. B. (March, 1993). Information for anticipation of tractor rollover. Poster presented at Human Factors Workshop, Univ. Toronto, Toronto, Ontario.

Stoffregen, T. A., Flynn, S. B., Grubb, P., Henderson, C., & Ridder, S. (April, 1992). The kinematic basis for visual perception of dynamics in the catching of bowling balls. Presented to the Southern Society for Philosophy and Psychology, Memphis, TN.

Stoffregen, T. A., & Flynn, S. B. (August, 1991). Visual perception of support surface rigidity and length from kinematic displays. Paper presented at the VI International Conference on Event Perception and Action, Amsterdam, The Netherlands.

Invited colloquia

• Institute of Human Development, University of California, Berkeley
• Georgia Institute of Technology, USA
National Center for Scientific Research (CNRS), Marseille, France
• National Hospital for Neurology and Neurosurgery, London, England
• National Institutes of Occupational Safety and Health, Cincinnati, OH, USA
• Neurological Sciences Institute, Portland, OR, USA
• University of Aizu, Japan
• University of Alabama, USA ama, USA
• University of Birmingham, England
• University of Geneva, Switzerland
• University of Illinois at Urbana-Champaign, USA
• University of the Mediterranean, France
• University of Minnesota, USA
University of Paris-Sud XI, Orsay, France
• University of Pennsylvania, Institute for Research in Cognitive Science, USA
• Tokyo University, Japan
• Waseda University, Japan

Revised October 2007