Invited talks

• Colour now and then: Time-dependent transformations of colour appearance.
  Smithson HE (Forthcoming: 2012).
  SVG (Scottish Vision Group) 11th Meeting, Deeside, Scotland, UK.

• Transformations of colour.
  Smithson HE (2011).
  David Marr Medal Talk, AVA (Applied Vision Association) 16th Christmas Meeting, York, UK.

• Spatial and temporal adjustments to colour appearance.
  Smithson HE & Lee RJ (2010).
  European Conference on Visual Perception, Lausanne, Switzerland.

• Colour appearance in a changing world.
  Smithson HE (2010).
  Gordon Research Conference, Sensory Coding & The Natural Environment, Lewiston, USA.

• The role of stimulus history in colour constancy.
  Smithson HE (2009).
  Fall Vision Meeting 2009, Seattle, Washington, USA.

• The representation of temporal sequence.
  Smithson HE (2007).
  The Rank Prize Funds, Opto-Electronics Symposium on Representations of the Visual World in the Brain, UK.

• The relative roles of temporal and spatial context in determining colour appearance.
  Smithson HE (2007).
  The Rank Prize Funds, Opto-Electronics Symposium on Self-Calibrating Sensory Systems, UK.

• Using Stroop tasks to reveal the structure of colour space.
  Smithson HE, Sharpe LT & Stockman A (2006).
  European Conference on Visual Perception, St. Petersburg, Russia.

• What’s special about S-cone vision?
  Smithson HE (2005).
  Fall Vision Meeting 2005, Tucson, Arizona, USA.

• Backward and forward masking with brief chromatic stimuli.
  Smithson HE (1999).
  The Rank Prize Funds, Opto-Electronics Symposium on Individual Differences in Colour Perception, UK.

Conference presentations

• A three-dimensional colour space from the 13th Century
  Smithson HE, Gasper G, Huxtable M & Mcleish T (2011).
  International Colour Vision Society 21st Symposium, Kongsburg, Norway.

• Multiple perceptual references for colour in space and time
  Lee RJ & Smithson HE (2011).
  International Colour Vision Society 21st Symposium, Kongsburg, Norway.

• Colour appearance in a changing world.
  Smithson HE & Lee RJ (2010).
  Colour Group of Great Britain, London, UK.

• Adaptation of higher order colour mechanisms
  Lee RJ, Mollon JD, Zaidi Q & Smithson HE* (2009).
  International Colour Vision Society 20th Symposium, Braga, Portugal.

• Temporal characteristics of the short-wavelength-sensitive cones and their associated pathways
  Lee RJ, Mollon JD, Zaidi Q & Smithson HE (2009).
  International Colour Vision Society 20th Symposium, Braga, Portugal.

• Why is colour perception slow?
  Stockman A, Smithson HE & Ripamonti A (2009).
  International Colour Vision Society 20th Symposium, Braga, Portugal.

• Keeping track of colour contexts.
  Smithson HE & Lee RJ (2007).
  International Colour Vision Society 19th Symposium, Belem, Brazil.

• The special status of the cardinal axes.
  Lee RJ, Mollon JD, Zaidi Q & Smithson HE (2007).
  International Colour Vision Society 19th Symposium, Belem, Brazil.

• Adaptation of central colour channels.
  Lee RJ, Mollon JD, Zaidi Q & Smithson HE* (2007).
  Smith-Pokorny Symposium, Chicago, USA.

• The relative roles of temporal and spatial context in determining colour appearance.
  Smithson HE (2007).
  Colour Group of Great Britain, Cambridge, UK.

• Using Stroop tasks to reveal the structure of colour space.
  Smithson HE, Sharpe LT & Stockman A (2007).
  Colour Group of Great Britain, London, UK.

• Colour space mapped by the reverse Stroop effect.
  Smithson HE, Khan SS, Sharpe LT & Stockman A (2006).
  Experimental Psychology Society Meeting, London, UK.

• Rod and cone spatial frequency sensitivity loss over the first seven years following retinal reattachment.
  Weir R, Smithson H, Bird A, Stockman A & Sharpe LT (2005).
  European Association for Vision and Eye Research, Vilamoura, Portugal.

• Colour space mapped by the reverse Stroop effect.
  Smithson HE, Khan SS, Sharpe LT & Stockman A (2005)
  International Colour Vision Society 18th Symposium, Lyon, France.

• Do the MC and PC pathways deliberately avoid S-cone input?
  Sun H, Lee BB, Smithson HE & Zaidi Q (2005).
  International Colour Vision Society 18th Symposium, Lyon, France.

• Colour constancy in context: roles for local adaptation and levels of reference.
  Smithson HE & Zaidi Q (2004)
  Colour Group of Great Britain, London, UK.

• Do masks terminate the icon?
  Smithson HE & Mollon JD (2004).
  Experimental Psychology Society Meeting, London, UK.

• Photostimulator allowing independent control of rods and the three cone types.
  Smithson HE, Pokorny J & Quinlan J (2003).
  International Colour Vision Society 27th Symposium, Seattle, Washington, USA.

• Locating the tritan confusion line.
  Smithson HE & Mollon JD (2002).
  Experimental Psychology Society Meeting, Cambridge, UK.

• Locating the tritan line with transient tritanopia.
  Smithson HE, Sumner P & Mollon JD (2001).
  International Colour Vision Society 16th Symposium, Cambridge, United Kingdom.

• Chromatic selectivity of forward and backward masking.
  Smithson HE & Mollon JD (1999).
  International Colour Vision Society 15th Symposium, Gottingen, Germany.

Seminars

• Astronomy and Vision Science.
  Smithson HE & Love G (2007).
  Biophysical Sciences Institute Launch, Durham, UK.

• Language and Colour: Using Stroop tasks to reveal the ‘cognitive colour spaces’ of Chinese and English students.
  Smithson HE (2007).
  Departmental Seminar, University of Newcastle, UK.

• Using Stroop tasks to reveal the structure of colour space.
  Smithson HE (2007).
  Departmental Seminar, University of Bradford, UK.

• Colour space mapped by the reverse Stroop effect.
  Smithson HE (2005).
  Departmental Seminar, University of Sunderland, UK.

• Colour space mapped by the reverse Stroop effect.
  Smithson HE (2005).
  Departmental Seminar, Justus-Liebig-Universität, Giessen, Germany.

• Do masks terminate the icon?
  Smithson HE (2005).
  Departmental Seminar, Department of Experimental Psychology, University of Oxford, UK.

• Visual Masking.
  Smithson HE (1999).
  Schnurmacher Institute for Vision Research Colloquium, SUNY, New York, USA