Cognitive Load

Solution: Cognitive Load

Cognitive Load refers to the amount of effort a person allocates to a task. It is recognized as an important factor in determining a person’s level of performance in a task and during daily life activities (Devos, et al, 2020).

Eye Tracking: Cognitive Load can be measured through physiological tools. Eye tracking is a sensitive, quantifiable, accurate real-time measure of cognitive effort via eye responses such as changes in the pupil (Fehringer, 2021), blinking (Chen, Epps, Ruiz, Chen, 2011), and other eye movements (Irwin & Thomas, 2010; Kramer, 1991; Van Orden, Limbert et al., 2001; Greef et al., 2009; Klinger, Tversky et al., 2010).

HarmonEyes uses the eye tracking signal, machine learning and AI to answer the following questions related to cognitive load:

  1. What is your current level of cognitive load?
    1. Low Cognitive Load: low mental effort, significant cognitive reserve, if sustained for long periods may lead to inattentiveness.
    2. Moderate Cognitive Load: moderate mental effort, engaged, alert, attentive, some cognitive reserve, few performance effects.
    3. High Cognitive Load: high mental effort, low cognitive reserve, potential performance effects such as slow reactions, and reduced decision-making capabilities.
  2. When will cognitive load level change? This assumes the same activity is engaged in without intervention.
    1. Predicted future load level:
      1. Low
      2. Moderate
      3. High
    2. Time to reach future state:
      1. Minutes and seconds
      2. Milliseconds
    3. Likelihood window:
      1. Ceiling level: defined as the average root mean squared error plus one standard deviation.
      2. Floor level: defined as the average root mean squared error minus one standard deviation.
    4. Probability (%):
      1. current level of cognitive load
      2. other levels of cognitive load