TL;DR
This paper introduces a low-cost, easy-to-assemble setup using a standard PC and sound card for precise timing of auditory stimuli and tapping responses, achieving millisecond accuracy without complex calibration.
Contribution
It provides a detailed guide and code for a simple, affordable setup that improves timing accuracy in auditory response experiments without requiring advanced programming skills.
Findings
Achieves within 2 ms response time precision
94% of recordings had no spurious or missing events
Setup is cheaper and easier than existing alternatives
Abstract
Measuring human capabilities to synchronize in time, adapt to perturbations to timing sequences or reproduce time intervals often require experimental setups that allow recording response times with millisecond precision. Most setups present auditory stimuli using either MIDI devices or specialized hardware such as Arduino and are often expensive or require calibration and advanced programming skills. Here, we present in detail an experimental setup that only requires an external sound card and minor electronic skills, works on a conventional PC, is cheaper than alternatives and requires almost no programming skills. It is intended for presenting any auditory stimuli and recording tapping response times with within 2 milliseconds precision (up to -2ms lag). This paper shows why desired accuracy in recording response times against auditory stimuli is difficult to achieve in conventional…
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