- Papathomas, T.V. “Career path and current research projects”, invited as keynote speaker in the ODASIS (Office for Diversity and Academic Success in the Sciences) High Achiever Workshop, Feb 17, 2017.
- Papathomas, T.V. “3-D Visual Illusions - Their Value in Vision Research”, Science Fair, Black River Middle School of Chester, NJ., March 3, 2016.
- Papathomas, T.V. “How We See the World with Our Eyes and Brain,” Second Westfield Senior Citizen Center, Westfield, NJ, November 17, 2015.
- Papathomas, T.V. “Depth-Inversion Illusions - Studies in the role of priors/biases in vision”, University of Tuebingen, Germany, August 28, 2015.
- Papathomas, T.V. “Science and Art”, Kastoria Chamber of Commerce (in Greek), Kastoria, Greece, March 15, 2015.
- Papathomas, T.V. “Science and Art”, Archeological Museum of Thessaloniki (in Greek), Thessaloniki, Greece, March 7, 2015.
- Papathomas, T.V. “3-D visual illusions and pathologies - What they tell us about the brain”, Northern New Jersey Junior Science and Humanities Symposium, Busch Student Center, March 25, 2014,
- Papathomas, T.V. “Interactions between Science and Art”, Zimmerli Museum of Art at Rutgers University, New Brunswick, NJ, March 3, 2015.
- Invited panelist in panel discussion “The Great Deceiver - Pat–trick Hughes”, Flowers Gallery, New York, April 30, 2014.
- Papathomas, T.V. “Interactions of bottom-up and top-down processes in visual perception”, Rutgers Center for Cognitive Science "What is Cognitive Science?" Talk Series, Dec 4, 2014.
- Papathomas, T.V. Vision Sciences Conference Public Lecture, “Vision Research: Artists Doing Science - Scientists Doing Art,” Dali Museum, Saint Petersburg, FL, May 17, 2014.
- Papathomas, T.V. “Perceptual differences between schizophrenia patients and controls,” Merial/Sanofi Animal Heath Care, North Brunswick, NJ, June 18, 2013.
- Papathomas, T.V. “Three-dimensional illusions - applications to schizophrenia research,” CCNY, Feb 19, 2013.
- Papathomas, T.V. “Depth across scale” served as Respondent for a roundtable discussion on
“De-facing the Portrait”, Zimmerli Art Museum. May 2, 2012. - Papathomas, T.V. “Making sense of the senses,” Rutgers University School of Arts and Sciences Honors Program, February 15, 2012.
- Papathomas, T.V. “Scary masks and other illusions,” RU Step-up for Success & Achievement in Math and Science (AIMS) Learning Community, April 14, 2010.
- Papathomas, T.V. “Top-down influences in perceiving the 3-D structure of faces and scenes,” New York University, December 3, 2009.
- Papathomas, T.V. “Illusions, the royal path to brain research,” to the new members of the Board of Trustees, Rutgers University, October 23, 2009.
- Papathomas, T.V. “Torn apart: Service and research at Rutgers,” Office of Undergraduate Education, Rutgers University, October 23, 2009.
- Papathomas, T.V. “Bottom-up and top-down processes in vision,” Douglass Science Institute for Women in Math, Science & Engineering, July 17 2009.
- Papathomas, T.V. “Top-down processes in perception under self motion - A simple model,” UCLA, April 15, 2008.
- Papathomas, T.V. “Top-down processes in perception under self motion - A simple model,” University of Southern California, April 14, 2008.
- Papathomas, T.V. “A simple model for the role of top-down processes in perceiving stationary and moving objects under self motion,” Department of Computer Science, Rutgers University, March 14, 2008.
- Papathomas, T.V. “An explanation of the half-moon illusion,” Cognitive Science Club, Rutgers University, November 14, 2007.
- Papathomas, T.V. “Illusory depth and motion of 3-D objects: Do we need top-down processes to explain the illusions?” Sarnoff Research Center, June 15, 2007.
- Papathomas, T.V. “Influences of attention on auditory aftereffects following purely visual adaptation,” Rutgers Talk Series on Perceptual Science, April 30, 2007.
- Papathomas, T.V. “Why do reverspectives move under self motion?” invited plenary talk at the Symposium on Art, Perception and Imagination, European Conference in Visual Perception, St. Petersburg, Russia, August 25, 2006.
- Papathomas, T.V. “Perceiving in three dimensions under egomotion,” Miami University, Oxford, Ohio, November 18, 2005.
- Papathomas, T.V. “Illusions in the perception of three-dimensional space,” Perception and Action Group, Department of Neurology, Aiginiteion Hospital, Athens National University, Greece, August 12, 2004.
- Papathomas, T.V. “The role of attention in perception: vision, audition, and interactions,” Department of Methodology, History and Theory of Science, Athens National University, Greece, March 30, 2004.
- Papathomas, T.V. “Visual illusions: External and internal factors,” Department of Methodology, History and Theory of Science, Athens National University, Greece, March 23, 2004.
- Papathomas, T.V. “Vision and the brain: Correlates between perception and structure,” Symposium at Athens National University, Greece, March 16, 2004.
- Papathomas, T.V. “Bottom-up and top-down influences in perceiving 3-D stimuli,” Symposium for Prof. D. M. Regan’s retirement at York University in Toronto, June 2003.
- Papathomas, T.V. “Depth reversals with facial and non-facial stimuli,” Vision Colloquium Series, Department of Brain and Cognitive Sciences, MIT, April 18, 2003.
- Papathomas, T.V. “Stages of rivalry: binocular, mono-stereo, ambiguous-figure, and depth-reversal rivalries. The role of top-down processes,” invited talk, Perceptual Ambiguity and Binocular Rivalry Workshop, San Miniato, Italy, 2002.
- Papathomas, T.V. “Cognitive factors in reverse depth and motion percepts,” Brown University, Providence, R.I. March 18, 2002.
- Papathomas, T.V. “Why do Hughes's reverspectives move?” joint talk with Patrick Hughes, Rutgers University, NJ, April 10, 2000.
- Papathomas, T.V. “Interaction of top-down and bottom-up mechanisms in vision - Case study: Hughes's reverspectives,” invited lecture at CAIP Center for Advanced Information Processing, Rutgers University, NJ, April 6, 2000.
- Papathomas, T.V. “A tool for studying the interaction of top-down and bottom-up mechanisms: learning effects and inter-observers differences,” invited lecture at Bell Laboratories, Murray Hill, NJ, March 22, 2000.
- Papathomas, T.V. “Illusory depth and motion percepts in Patrick Hughes's reverspectives,” invited lecture at NEC Research Institute, Princeton, NJ, Feb 7, 2000.
- Papathomas, T.V. “Fourier and non-Fourier motion pathways,” invited lecture at State University of New York, New York, October 7, 1999.
- Papathomas, T.V. “One common or separate motion pathways? Evidence from a universal equiluminance technique,” invited lecture at Vanderbilt University, Nashville, Tennessee, April 27, 1999.
- Papathomas, T.V. “Cognitive penetrability of early vision,” invited lecture at NEC Research Institute, Princeton, NJ, Nov 3, 1998.
- Papathomas, T.V. “Interaction between schema-driven and data-driven mechanisms in vision,” invited lecture at NEC Research Institute, Princeton, NJ, Oct 3, 1998.
- Kovács, I., Papathomas, T.V. and Fehér, A. “When the brain changes its mind: normal and abnormal aspects of binocular rivalry,” Annual Meeting of the McDonnell-Pew Program in Cognitive Neuroscience, June 1998, Montreal, Canada.
- Papathomas, T.V. "Psychoanatomy in vision: Cutting the brain without a knife," invited talk in Rutgers Center for Cognitive Science lecture series “What is Cognitive Science?” Rutgers University, October 17, 1996.
- Papathomas, T.V. "An efficient technique for assessing the relative sensitivities of 1st-order and 2nd-order motion: Theory and applications," invited lecture at Boston University, June 5, 1996.
- Papathomas, T.V. "The role of chromatic and luminance signals in texture segregation," invited lecture at NEC Research Institute, Princeton, NJ, May 7, 1996.
- Papathomas, T.V. “Color as a carrier of motion: Psychophysics, modeling, and image processing," invited lecture at Lucent Technologies Bell Labs, April 9, 1996.
- Papathomas, T.V. "Separate processing of monocular and cyclopean forms?" invited lecture at the Rutgers University Series on Human and Computer Vision, Sept 18, 1995.
- Papathomas, T.V. "Interaction of color and luminance in stereopsis," invited lecture at the University of Patras, Patras, Greece, August 11, 1995.
- Papathomas, T.V. "Toward an integrated model of biological motion perception," invited lecture at NEC Research Institute, Princeton, NJ, July 12, 1995.
- Papathomas, T.V. "1st-order and 2nd-order motion," invited lecture at Rutgers University, Newark Campus, May 8, 1995.
- Papathomas, T.V. "Psychophysical evidence for separate motion pathways," invited lecture at New York University, April 14, 1995.
- Papathomas, T.V. "Fourier and non-Fourier motion mechanisms: Experiments and computational models," invited lecture at AT&T Bell Labs, April 13, 1995.
- Papathomas, T.V. "Psychoanatomical studies on motion pathways in the visual system," invited lecture at the University of Pennsylvania, March 30, 1995.
- Papathomas, T.V. "A unified approach to the perception of notion, stereo, and static flow (Glass) patterns,” Rutgers Series in Vision, November 11, 1994.
- Papathomas, T.V. "Experiments and models for 1st- and 2nd-order motion," invited lecture at the University of Patras, Patras, Greece, September 14, 1994.
- Papathomas, T.V. "Computational models for Fourier and non-Fourier motion mechanisms," invited lecture at Rene Descartes University, Paris, France, August 31, 1994.
- Papathomas, T.V. and Ramanujan, K.S., "Texture segregation model based on human performance", AT&T Bell Laboratories, August 4, 1994.
- Papathomas, T.V. "A computational model for motion mechanisms, incorporating chromatic and luminance inputs," invited lecture at the Nippon Electric Company (NEC) Research Institute, Princeton, N.J., March 19, 1993.
- Papathomas, T.V. "Visual motion mechanisms: The role of color and luminance," invited lecture in Neurobiology course 761-556, Dr. Robin Davis coordinator, Rutgers, Feb 17, 1993.
- Papathomas, T.V. "Two distinct visual motion mechanisms revealed by experiments with color and luminance," invited lecture in Biomedical Engineering Seminar Series, Dr. George Shoane coordinator, Rutgers University, March 1, 1993.
- Papathomas, T.V. and Gorea, A., "Texture segregation model illustrated with color, luminance and orientation defined stimuli," New York University, November 22, 1991.
- Papathomas, T.V., "Psychophysical experiments on motion and texture perception," University of Medicine and Dentistry of New Jersey, Piscataway, NJ, October 5, 1991.
- Papathomas, T.V., "A unified class of stimuli for the perception of motion, texture and depth," Bristol University, Bristol, England, July 10, 1991.
- Papathomas, T.V., "Multi-attribute stimuli for motion, texture and stereo perception," Rene Descartes University, Paris, France, July 1, 1991.
- Papathomas, T.V., "Perception of motion, texture and depth," Department of Psychology Colloquium Series, Rutgers University, Piscataway, NJ, April 10, 1991.
- Papathomas, T.V., "The role of visual attributes in the perception of motion, texture and depth," University of Massachusetts at Lowell, March 13, 1991.
- Papathomas, T.V., "On motion and depth perception - random-dot autostereograms," Ontario Science Center, Toronto, Canada, March 4, 1991.
- Papathomas, T.V., "Experiments and models in motion perception," Biomedical Engineering Seminar, Rutgers University, Piscataway, NJ, September 18, 1989.
- Papathomas, T.V., "Human and machine vision," Morristown Science Center Tour at AT&T Bell Laboratories, November 7, 1987.
- Papathomas, T.V., "Influence of color and orientation on perceived motion," AT&T Bell Laboratories, September 17, 1987.
- Papathomas, T.V., "Computers and vision," KRIKOS Conference on Artificial Intelligence, University of Pennsylvania, Philadelphia, PA, May 17, 1986.
- Papathomas, T.V., "From human vision to machine vision," KRIKOS Symposium on Artificial Intelligence, held at the National Technical University, Athens, Greece, November 28, 1986.
- Papathomas, T.V., "Human/Machine visual interaction," Image Analysis and Vision Research Colloquium, AT&T Bell Laboratories, April 23, 1986.
- Papathomas, T.V., "Analysis, simulation and modeling of switching converters," IEEE Section, Athens, Greece, January 9, 1981.