- Photo Editing & Eye Movements
- RICOH, Japan, 2014 (Host: Dr. Takeshi Suzuki)
- CVC, University of Barcelona, 2014 (Host: Prof. Dimos Karatzas)
- Perceptual Organization & Eye Movements
- Alghero, ECVP, 2012
- Geissen, Germany, TEAP 2014
- Slant Anisotropy
- Extremal Edges
- UC Los Angeles 2006 (Host: Prof. Zili Liu)
- EPFL, Lausanne, Switzerland 2007 (Host: Prof. Michael Herzog)
- UC Los Angeles 2008 (Host: Prof. Phil Kellman)
- TU Kaiserslautern, Germany 2010 (Host: Prof. Thomas Lachmann)
- KU Leuven, Belgium 2010 (Host: Prof. Johan Wagemans)
- ECVP 2012, Alghero Italy (Invited talk in Symposium: 100 years of Gestalt)
- SpatioTemporal Interpolation
- Malborough High Los Angeles 2010 (Host: Dr. Forsheith)
- Fechner day, Padua, Italy, 2010
- INSERM, Strasbourg, France, 2010 (Host. Dr. Anne Giersch)
- ECVP, Toulouse France, 2011
- University of Jena, Germany, 2011 (Host. Prof. Stefan Schweinberger)
- University of Arizona, Phoenix, USA, 2012 (Host: Prof. Mary Peterson)
- University of Giessen, Germany, 2013 (Host: Prof. Karl Gegenfurtner)
- KU Leuven, Belgium 2013 (Host: Prof. Johan Wagemans)
- Object Perception
- ECVP, Lausanne Switzerland, 2010
- VSS, Naples Florida, 2011
- Visual Perception
- UC Merced, 2007-2008,
Guest Lecture in classes of Profs. Teenie Matlock, Yarrow Durham, Shawn Newsam
