Visual Perception

Eye tracking is an established technique to study the nature of eye movements in how humans perceive, interpret, and operate in their environment.

Perfect for a variety of fields

Eye tracking is an effective tool to study different aspects of visual perception:

  • Understanding eye movements in natural tasks to see how people coordinate actions in real-life tasks revealing cognitive/perceptual processes and/or limitations
  • Looking into change blindness, inattentional blindness, and visual memory
  • Exploring navigation and guidance of visual attention

Making comparison easier

Eye tracking allows researchers to quantify the dynamics of eye movements in visual behavior. This is particularly useful for uncovering patterns and characteristics that are diagnostic of important states or conditions, such as in traumatic brain injury. This objective, quantitative information provides a basis for comparison to normative data, revealing differences that support particular diagnoses or identification of impairments. Examples include:

  • Saccadic performance, such as latency, over/undershoot, and suppression
  • Fixation stability and drift
  • Smooth pursuit, such as alterations of pursuit gain
  • Binocularity and vergence, such as strabismus (uncontrolled inward or outward eye movement) or amblyopia (lazy eye)
  • Nystagmus (rapid, uncontrolled eye movements), such as the slope of the slow phase and amplitude of the fast phase.

Cases

Eye tracking used to compare tactile and visual reading strategies

Researchers from the Netherlands used Tobii Pro Glasses 2 and an infrared motion-capturing system in order to understand the reading strategies of both sighted and braille-dependent students when reading algebraic expressions.  Read more

Cardiff University

Cardiff University's School of Optometry and Vision Sciences used eye tracking from Tobii Pro to explore eye movement in people with sight issues. The researchers looked at how environmental factors affected vision deficits. Read more

University of Melbourne

This study conducted at the Department of Optometry & Vision Sciences at the University of Melbourne focused on eye movement disorders, in particular nystagmus, and the possibility of using eye tracking as an established form of diagnosis tool. Read more

Products and services

Tobii Pro offers eye tracking systems for psychology and neuroscience studies in a controlled research setting, such as a lab, as well as examining human behavior in real-world environments, like in an office or home. Analyzing data is made easier with our various software solutions and their ability to work with other companies' solutions. Read more

  • Fan, Y., Wu, C., Tsai, W., & Lin, K. (2015). Effects of lateralized light flash and color on unilateral neglect. Disability and Rehabilitation, 37(26), 2400–2406. https://doi.org/10.3109/09638288.2015.1031284
  • Ma, C.-Y., & Hang, H.-M. (2015). Learning-based saliency model with depth information. Journal of Vision, 15(6), 19. https://doi.org/10.1167/15.6.19
  • Lee, S. S.-Y., Wood, J. M., & Black, A. A. (2015). Blur, eye movements and performance on a driving visual recognition slide test. Ophthalmic and Physiological Optics, 35(5), 522–529. https://doi.org/10.1111/opo.12230

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