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Related Experiment Video

Updated: Mar 17, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

Auditory presentation and synchronization in Adobe Flash and HTML5/JavaScript Web experiments.

Stian Reimers¹, Neil Stewart²

¹Department of Psychology, City University London, Northampton Square, London, EC1V 0HB, UK. stian.reimers@city.ac.uk.

Behavior Research Methods

|July 17, 2016

Summary

This summary is machine-generated.

Web-based auditory experiments show consistent stimulus durations but variable synchronization lags between auditory and visual onsets across different systems and browsers. This impacts the accuracy of behavioral research timing.

Keywords:

Audio Internet JavaScript Synchronization Web

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Area of Science:

Cognitive Psychology
Human-Computer Interaction
Psychophysics

Background:

Web-based experiments are increasingly used for behavioral research.
Previous research confirmed the accuracy of visual stimuli presentation in web-based experiments.
The accuracy of auditory stimuli in web-based settings remains less understood.

Purpose of the Study:

To assess the accuracy of auditory stimulus presentation and auditory-visual synchronization in web-based experiments.
To identify factors influencing timing accuracy for auditory stimuli in online research.

Main Methods:

Utilized a millisecond-accurate Black Box Toolkit to measure auditory stimulus durations and synchronization.
Tested auditory and visual stimuli presentations across diverse computer specifications, browsers (e.g., Chrome, Firefox, Safari), and coding languages (Adobe Flash, JavaScript).
Examined timing distributions for 100 stimulus presentations under various configurations.

Main Results:

Auditory stimulus durations were found to be highly consistent across all tested conditions.
Significant variations in the synchronization lag between auditory and visual onsets were observed.
Timing accuracy was dependent on the specific browser and computer system used.

Conclusions:

While auditory stimulus duration is reliable in web-based research, the synchronization with visual stimuli presents challenges.
Researchers must consider browser and system variability when designing web-based experiments involving synchronized auditory and visual stimuli.
Further optimization of web technologies may be needed to improve cross-platform timing accuracy for auditory-visual integration.