Accuracy and Precision of Visual Stimulus Timing in PsychoPy: No Timing Errors in Standard Usage

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2014 Nov 4

PMID 25365382

Citations 12

Authors

Pablo Garaizar

Miguel A Vadillo

Affiliations

Soon will be listed here.

Abstract

In a recent report published in PLoS ONE, we found that the performance of PsychoPy degraded with very short timing intervals, suggesting that it might not be perfectly suitable for experiments requiring the presentation of very brief stimuli. The present study aims to provide an updated performance assessment for the most recent version of PsychoPy (v1.80) under different hardware/software conditions. Overall, the results show that PsychoPy can achieve high levels of precision and accuracy in the presentation of brief visual stimuli. Although occasional timing errors were found in very demanding benchmarking tests, there is no reason to think that they can pose any problem for standard experiments developed by researchers.

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