Oman, C. M., A. Liu, J. Marquez, W. Sachtler, W. Hutchison, A. Beall, and A. Natapoff, "Advanced Displays and Controls for Six Degree of Freedom Orientation and Navigation in Virtual Microgravity", USRA Bioastronautics Investigator's Workshop, Galveston, TX, Universities Space Research Association, Division of Space Biomedicine, pp. Paper 9, 2001.

Liu, A., C. M. Oman, A. Beall, I. Howard, T. Smith, L. R. Young, L. Harris, and M. Jenkin, "Human Orientation in Prolonged Weightlessness (ISS HRF-E085)", Conference on International Space Station Utilization, Cape Canaveral, FL, American Institute for Aeronautics and Astronautics, 2001.

Márquez, J. J., C. M. Oman, A. Liu, and A. Beall, "Spacecraft in Miniature: A Tool for the acquisition of mental representations of large, complex 3-D virtual environments", International Conference on Technologies for Human Factors and Psycho-Social Adaptation in Space and Terrestrial Applications (Human.Systems 2001: Exploring the Human Frontier), Houston, TX, Institute for Advanced Interdisciplinary Research, Houston TX, 2001.

Liu, A., K. Duda, C. M. Oman, and A. Natapoff, "Effects of parabolic flight zero-gravity on looming linear vection", Journal of Vestibular Research, vol. 11, no. 3-5, pp. 325, 2002.

Márquez, J. J., C. M. Oman, A. Liu, and A. Beall, "“Spacecraft in miniature”: a tool for the acquisition of mental representations of large environments", Journal of Vestibular Research, vol. 11, no. 3-5, pp. 338-339, 2002.

Richards, J., C. M. Oman, W. Shebilske, A. Beall, A. Liu, and A. Natapoff, "Training, transfer, and retention of three-dimensional spatial memory in virtual environments", Journal of Vestibular Research, vol. 12, no. 5-6, pp. 223-238, 2003.

Richards, J., C. M. Oman, W. Shebilske, A. Beall, A. Liu, and A. Natapoff, "Training, transfer, and retention of three-dimensional spatial memory in virtual environments", Journal of Vestibular Research, vol. 12, no. 5-6, pp. 223-238, 2003.

Oman, C. M., L. Harris, W. Shebilske, J. Taube, A. Liu, and J. Richards, "Visual orientation and spatial memory: mechanisms and countermeasures", USRA Bioastronautics Investigators Workshop, Galveston, TX, Universities Space Research Association, Division of Space Biomedicine, 2003.

Oman, C. M., L. Harris, W. Shebilske, J. Taube, A. Liu, and J. Richards, "Visual orientation and spatial memory: mechanisms and countermeasures", USRA Bioastronautics Investigators Workshop, Galveston, TX, Universities Space Research Association, Division of Space Biomedicine, 2003.

Márquez, J. J., C. M. Oman, and A. Liu, "You-are-here maps for International Space Station: Approach and Guidelines", SAE International Conference on Environmental Systems: SAE International, pp. 1-7, 2004.

Márquez, J. J., C. M. Oman, and A. Liu, "You-are-here maps for International Space Station: Approach and Guidelines", SAE International Conference on Environmental Systems: SAE International, pp. 1-7, 2004.

Oman, C. M., and A. Liu, "Mars Mission Concept Exploration and Refinement: Study Phase 2 Final Report: Human Factors Engineering", Final Report, no. 3.19, Cambridge, MA 02139, CS Draper Laboratory, 555 Technology Square, pp. 1-38, 2005.

Oman, C. M., L. Harris, J. Taube, R. Dyde, H. Jenkin, A. Liu, D. Benveniste, D. A. Buckland, A. Natapoff, and J. Richards, "Visual orientation, navigation and spatial memory: mechanisms and countermeasures", USRA Bioastronautics Investigator's Workshop, Galveston, TX, Universities Space Research Association, Division of Space Biomedicine, 2005.

Aoki, H., C. M. Oman, A. Natapoff, and A. Liu, "The effect of the configuration, frame of reference, and spatial ability on spatial orientation during virtual 3-dimentional navigation training", 7th Symposium on the Role of the Vestibular Organs in Space Exploration, European Space Technology Centre (ESTEC), Noordwijk, the Netherlands, European Space Agency, June 7-9, 2007, 2006.

Aoki, H.., C. M. Oman, A. Natapoff, and A. Liu, "The effect of the configuration, frame of reference, and spatial ability on spatial orientation during virtual 3-dimentional navigation training", 7th Symposium on the Role of the Vestibular Organs in Space Exploration, European Space Technology Centre (ESTEC), Noordwijk, the Netherlands, European Space Agency, June 7-9, 2007, 2006.

Oman, C. M., D. Benveniste, D. A. Buckland, H. Aoki, A. Liu, A. Natapoff, and M. Kozhevnikov, "Incongruent Spacecraft Module Visual Verticals Affect Spatial Task Performance", 7th International Symposium on the Role of Vestibular Organs in Space Exploration, European Space Technology Center, Noordwijk, Holland, June 7-9, 2006.

Oman, C. M., D. Benveniste, D. A. Buckland, H.. Aoki, A. Liu, A. Natapoff, and M. Kozhevnikov, "Incongruent Spacecraft Module Visual Verticals Affect Spatial Task Performance", 7th International Symposium on the Role of Vestibular Organs in Space Exploration, European Space Technology Center, Noordwijk, Holland, June 7-9, 2006.

Oman, C. M., D. Benveniste, D. A. Buckland, H. Aoki, A. Liu, A. Natapoff, and M. Kozhevnikov, "Spacecraft Module Visual verticals and Individual Spatial Abilities Determie 3D Spatial task Performance", ASMA 2006, Orlando, FL, May 15-18, 2006.

Oman, C. M., D. Benveniste, D. A. Buckland, H. Aoki, A. Liu, and A. Natapoff, "Spacecraft Module Visual Verticals and Training Affect Spatial Task Performance", Habitation, vol. 10, no. 3-4, pp. 202-203, 2006.

Oman, C. M., D. Benveniste, D. A. Buckland, H.. Aoki, A. Liu, and A. Natapoff, "Spacecraft Module Visual Verticals and Training Affect Spatial Task Performance", Habitation, vol. 10, no. 3-4, pp. 202-203, 2006.

Cizaire, C., C. M. Oman, D. A. Buckland, A. Natapoff, H.. Aoki, and A. Liu, "Effect of two-module docked spacecraft configurations on spatial orientation (abstract)", 16th IAA Humans in Space Symposium, Beijing, China, May 20-24, 2007.

Oravetz, C. T., L. R. Young, and A. Liu, "Slope, distance, and height estimation of lunar and lunar-like terrain in a virtual reality environment", Gravitational Space Biology, vol. 22, no. 2, pp. 57-66, September 2009.

Kaderka, J., J. Mateus, A. Liu, and L. R. Young, "Partial Gravity Effects on Slope Estimation", Aerosapce Medical Association 81st Annual Scientific Meeting, Phoenix, AZ, Aerospace Medical Association , 2010.

Liu, A., V. Wang, R. E. Forman, R. C. Galvan, A. Natapoff, and C. M. Oman, "Advanced Displays for Efficient Training and Operation of Robotic Systems", NASA Human Research Program Investigators' Workshop, Houston, TX, 2012.

Lowenthal, C. S., A. Liu, A. Natapoff, and C. M. Oman, "Effect of sleepiness on performance and workload during space robotics tasks (abstract)", Aviation Space and Environmental Medicine, vol. 83, no. 3, pp. 274, 2012.

Robinson, S. K., A. Liu, C. M. Oman, J.. Mindock, V.. Byrne, L.E.. Warren, D.C.. Burbank, and M.. Reagan, "Customized Refresher and Just-In-Time Training for Long-Duration Spaceflight Crews", NASA HRP Investigators' Workshop, Galveston, TX, 2015.

Liu, A., R. Galvan, M.. Rueger, E.E.. Flynn-Evans, A. Natapoff, S.W.. Lockley, and C. M. Oman, "Validation of Assessment Tests and COuntermeasures for Detecting and Mitigating Changes in Cognitiv Function Due to Fatigue during Telerobotic Operations", NASA HRP Investigators' Workshop, Galveston, TX, 2015.