Automated vision occlusion-timing instrument for perception-action research

Area of Science:

• * Perception-action research
• * Sports science
• * Human-computer interaction

Background:

• * Vision occlusion spectacles are crucial for studying how athletes use visual information.
• * Previous manual triggering methods for these spectacles were prone to experimenter error and lacked precision.
• * Accurate timing of visual occlusion is vital for reliable perception-action studies.

Purpose of the Study:

• * To introduce and evaluate a novel laser curtain wireless trigger system for vision occlusion spectacles.
• * To assess the system's portability, speed, and reliability in triggering visual occlusion.
• * To improve the accuracy and consistency of visual occlusion timing in perception-action research.

Main Methods:

• * Development of a portable laser curtain system that triggers wirelessly.
• * Testing the system's transmission time and accuracy in laboratory and performance settings.
• * Utilizing a cricket bowler and baseball pitcher to validate the trigger's performance during dynamic actions.

Main Results:

• * The laser curtain system demonstrated a rapid wireless transmission time of only 8 ms for vision occlusion.
• * Occlusion consistently occurred at the intended moments, such as near ball release and during mid-flight.
• * The system proved highly reliable, with only 8% of collected data trials being unusable.

Conclusions:

• * The laser curtain wireless trigger significantly enhances the capabilities of vision occlusion spectacles.
• * This technology overcomes previous limitations, offering a more precise and reliable tool for perception-action research.
• * The system is a valuable advancement for disciplines requiring accurate visual perception studies, particularly in sports science.