A Random-Dot Kinematogram for Web-Based Vision Research

Sivananda Rajananda; Hakwan Lau; Brian Odegaard

doi:10.5334/jors.194

A Random-Dot Kinematogram for Web-Based Vision Research

Journal of Open Research Software

Volume 6 (2018): Issue 1

By: Sivananda Rajananda, Hakwan Lau and Brian Odegaard

Open Access

|Jan 2018

Abstract

Web-based experiments using visual stimuli have become increasingly common in recent years, but many frequently-used stimuli in vision research have yet to be developed for online platforms. Here, we introduce the first open access random-dot kinematogram (RDK) for use in web browsers. This fully customizable RDK offers options to implement several different types of noise (random position, random walk, random direction) and parameters to control aperture shape, coherence level, the number of dots, and other features. We include links to commented JavaScript code for easy implementation in web-based experiments, as well as an example of how this stimulus can be integrated as a plugin with a JavaScript library for online studies (jsPsych).

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Articles in this issue

DOI: https://doi.org/10.5334/jors.194 | Journal eISSN: 2049-9647

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Language: English

Submitted on: Sep 22, 2017

Accepted on: Jan 5, 2018

Published on: Jan 27, 2018

Published by: Ubiquity Press

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

Random-dot kinematogram,

random dot motion,

moving dot stimulus,

web-based experiments,

online experiments,

visual psychophysics,

© 2018 Sivananda Rajananda, Hakwan Lau, Brian Odegaard, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 6 (2018): Issue 1