New paper by Hermens et al.

New paper by Hermens et al.

"The role of eye movements in a contour detection task"

Recent research by Dr Hermens and colleagues examined participants' eye movements while they searched for contours within a display. 

Abstract

Vision combines local feature integration with active viewing processes, such as eye movements, to perceive complex visual scenes. However, it is still unclear how these processes interact and support each other. Here, we investigated how the dynamics of saccadic eye movements interact with contour integration, focusing on situations in which contours are difficult to find or even absent. We recorded observers' eye movements while they searched for a contour embedded in a background of randomly oriented elements. Task difficulty was manipulated by varying the contour's path angle. An association field model of contour integration was employed to predict potential saccade targets by identifying stimulus locations with high contour salience. We found that the number and duration of fixations increased with the increasing path angle of the contour. In addition, fixation duration increased over the course of a trial, and the time course of saccade amplitude depended on the percept of observers. Model fitting revealed that saccades fully compensate for the reduced saliency of peripheral contour targets. Importantly, our model predicted fixation locations to a considerable degree, indicating that observers fixated collinear elements. These results show that contour integration actively guides eye movements and determines their spatial and temporal parameters.

Reference

Van Humbeeck, N., Schmitt, N., Hermens, F., Wagemans, J. & Ernst, U.A. (2013). 'The role of eye movements in a contour detection task'. Journal of Vision, 13(14):5.

The full text is available at: http://www.journalofvision.org/content/13/14/5.full

Search News

Browse by Month

2024

  1. Jan
  2. Feb There are no items to show for February 2024
  3. Mar
  4. Apr There are no items to show for April 2024
  5. May There are no items to show for May 2024
  6. Jun There are no items to show for June 2024
  7. Jul There are no items to show for July 2024
  8. Aug There are no items to show for August 2024
  9. Sep There are no items to show for September 2024
  10. Oct There are no items to show for October 2024
  11. Nov There are no items to show for November 2024
  12. Dec There are no items to show for December 2024

2023

  1. Jan There are no items to show for January 2023
  2. Feb
  3. Mar There are no items to show for March 2023
  4. Apr
  5. May
  6. Jun
  7. Jul There are no items to show for July 2023
  8. Aug
  9. Sep There are no items to show for September 2023
  10. Oct There are no items to show for October 2023
  11. Nov
  12. Dec

2022

  1. Jan There are no items to show for January 2022
  2. Feb There are no items to show for February 2022
  3. Mar There are no items to show for March 2022
  4. Apr There are no items to show for April 2022
  5. May There are no items to show for May 2022
  6. Jun There are no items to show for June 2022
  7. Jul There are no items to show for July 2022
  8. Aug
  9. Sep
  10. Oct
  11. Nov There are no items to show for November 2022
  12. Dec There are no items to show for December 2022

2020

  1. Jan There are no items to show for January 2020
  2. Feb There are no items to show for February 2020
  3. Mar
  4. Apr There are no items to show for April 2020
  5. May There are no items to show for May 2020
  6. Jun There are no items to show for June 2020
  7. Jul There are no items to show for July 2020
  8. Aug There are no items to show for August 2020
  9. Sep There are no items to show for September 2020
  10. Oct There are no items to show for October 2020
  11. Nov There are no items to show for November 2020
  12. Dec There are no items to show for December 2020

2019

  1. Jan There are no items to show for January 2019
  2. Feb There are no items to show for February 2019
  3. Mar There are no items to show for March 2019
  4. Apr There are no items to show for April 2019
  5. May There are no items to show for May 2019
  6. Jun There are no items to show for June 2019
  7. Jul
  8. Aug
  9. Sep There are no items to show for September 2019
  10. Oct
  11. Nov There are no items to show for November 2019
  12. Dec There are no items to show for December 2019

2018

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May There are no items to show for May 2018
  6. Jun
  7. Jul There are no items to show for July 2018
  8. Aug There are no items to show for August 2018
  9. Sep There are no items to show for September 2018
  10. Oct There are no items to show for October 2018
  11. Nov There are no items to show for November 2018
  12. Dec There are no items to show for December 2018

2017

  1. Jan There are no items to show for January 2017
  2. Feb
  3. Mar There are no items to show for March 2017
  4. Apr There are no items to show for April 2017
  5. May There are no items to show for May 2017
  6. Jun There are no items to show for June 2017
  7. Jul There are no items to show for July 2017
  8. Aug There are no items to show for August 2017
  9. Sep
  10. Oct There are no items to show for October 2017
  11. Nov There are no items to show for November 2017
  12. Dec There are no items to show for December 2017

2016

  1. Jan
  2. Feb
  3. Mar
  4. Apr There are no items to show for April 2016
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec There are no items to show for December 2016

2013

  1. Jan
  2. Feb There are no items to show for February 2013
  3. Mar
  4. Apr
  5. May
  6. Jun There are no items to show for June 2013
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

2012

  1. Jan There are no items to show for January 2012
  2. Feb There are no items to show for February 2012
  3. Mar
  4. Apr
  5. May
  6. Jun There are no items to show for June 2012
  7. Jul There are no items to show for July 2012
  8. Aug
  9. Sep There are no items to show for September 2012
  10. Oct
  11. Nov
  12. Dec There are no items to show for December 2012

2011

  1. Jan
  2. Feb
  3. Mar
  4. Apr There are no items to show for April 2011
  5. May
  6. Jun
  7. Jul There are no items to show for July 2011
  8. Aug
  9. Sep
  10. Oct There are no items to show for October 2011
  11. Nov There are no items to show for November 2011
  12. Dec There are no items to show for December 2011