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Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
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Cognitive load affects gaze dynamics during real-world tasks.

A P Martinez-Cedillo1, N Gavrila2, A Mishra2

  • 1Department of Psychology, University of York, York, YO10 5DD, UK. priscilla.martinezcedillo@york.ac.uk.

Experimental Brain Research
|March 3, 2025
PubMed
Summary
This summary is machine-generated.

Cognitive load significantly impacts everyday tasks like making tea and sandwiches. High cognitive load slows actions and increases attention to irrelevant objects, revealing gaze control isn't effortless.

Keywords:
Cognitive LoadEye movementNatural tasksSequential

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Active gaze is crucial for information gathering during everyday actions.
  • The cognitive resources underpinning gaze control in real-world tasks remain under-explored.

Purpose of the Study:

  • To investigate the impact of secondary cognitive load on gaze behavior during common, object-related tasks.
  • To understand the resource demands of gaze control in ecologically valid settings.

Main Methods:

  • Participants performed tea- and sandwich-making tasks while wearing a mobile eye-tracker.
  • A dual-task paradigm was employed, with participants counting backward by threes (high load) or ones (low load).

Main Results:

  • Higher cognitive load led to slower task completion times and increased fixations on irrelevant objects.
  • The eye-hand span decreased under high cognitive load, indicating less anticipatory gaze.
  • These effects highlight the resource-dependent nature of gaze control.

Conclusions:

  • Cognitive load significantly modulates gaze control strategies in everyday activities.
  • Gaze control mechanisms during active, real-world tasks are not automatic and require cognitive resources.
  • Findings provide insights into the interplay between cognition and action in daily life.