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Using Arduino microcontroller boards to measure response latencies.

Thomas W Schubert1, Alessandro D'Ausilio, Rosario Canto

  • 1Instituto Universitário de Lisboa (ISCTE-IUL), Centro de Investigação e Intervenção Social, Av. Forças Armadas, Ed. ISCTE-IUL, 1649-026, Lisbon, Portugal, schubert@igroup.org.

Behavior Research Methods
|April 16, 2013
PubMed
Summary

This study introduces Arduino microcontrollers as a precise, affordable, and flexible tool for measuring buttonpress latencies in cognitive science. Arduinos offer reliable data collection, outperforming standard keyboards and matching response boxes.

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Area of Science:

  • Cognitive Science
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Buttonpress latency measurement is crucial in cognitive science.
  • Keyboards lack precision, leading to reduced statistical power and false positives.
  • Existing precise methods like response boxes are costly and inflexible.

Purpose of the Study:

  • To present an inexpensive and flexible alternative for precise response latency measurement.
  • To validate the use of Arduino microcontrollers in cognitive science experiments.
  • To demonstrate the integration capabilities of Arduino for extended experimental designs.

Main Methods:

  • Utilizing open-source Arduino microcontroller boards connected via USB.
  • Implementing Arduino to measure response latencies upon trial initiation.

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  • Communicating latency data back to a PC through a virtual serial port or keyboard emulation.

    • Main Results:

    • Demonstrated reliability, robustness, and precision across six validation studies.
    • Measured added error with a standard deviation of less than 1 ms.
    • Arduino performance matched serial response boxes and surpassed standard keyboards.

    Conclusions:

    • Arduino microcontrollers provide a cost-effective and adaptable solution for precise behavioral data acquisition.
    • This approach enhances experimental power and reduces measurement error in cognitive paradigms.
    • The Arduino platform facilitates the integration of diverse sensors and actuators, expanding research possibilities.