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This is an illustration of how to run a jsPsych experiment from pavlovia.org, using the jsPsych pavlovia plugin.

Demo for using Mouseview.JS for web based eye tracking using the mouse.

When using this package please cite: Anwyl-Irvine, A. L., Armstrong, T., & Dalmaijer, E. S. (2021, March 7). MouseView.js: Reliable and valid attention tracking in web-based experiments using a cursor-directed aperture. https://doi.org/10.31234/osf.io/rsdwg

Created for Eliza Yujun Ng December 2018

Numbers are presented at a rate of one per second. The first digit cannot be 0 Following digits can be 0 but cannot be the same as the previous digit.

If the answer is correct the span is increased for the next trial If the answer is wrong the span is decreased for the next trial

If there are at least two errors at a given span and that represents more than half of the total attempts at that span then the experiment ends, returning a span of one less than the final span attempted.

A staircase using the QUEST algorithm from Watson & Pelli (1983)

This experiment is designed to measure participants' forwards, backwards, and sequential digit spans. It uses visual presentation. Sequence length increases every two trials. If participants make an error on both trials of the same length, they move onto the next trial.

This experiment is designed to measure participants' forwards, backwards, and sequential digit spans. It uses visual presentation. Sequence length increases every two trials. If participants make an error on both trials of the same length, they move onto the next trial.

Balloon Analogue Risk Task (BART)

The experiment: ——

This is a simplified (and prettified) version of the BART task by Lejuez et al (2002). Participants have to blow up a balloon that they know will burst at some point. They ‘earn’ rewards for getting the balloons to be larger, but increase the risk of bursting it, in which case they earn no reward for that balloon. The question is, how many times does someone pump each balloon trying to optimise their rewards.

The measure is designed to quantify individual differences in risk-taking.

Analysing your data: ——

You should filter out data where the balloon burst and measure the number of pumps made for the remaining trials.

Notes: ——

WARNING: This is an advanced demo involving lots of code components

This can be extended to be more similar to the original paper by adding further colours of balloons with different bursting profiles.

A demo based on Greenberg & Waldman (1993) Test of Variables of Attention.

A learning task based on the reinforcement learning model. The current version is based on the paper by Frank, Woroch and Curran. (2005). Neuron, 47(4), 495-501.

Moves a pulsating circle around the screen like an eye tracker calibration cue. Paths are read from an Excel file but implemented in code.

In this task participants are required to sort the presented cards based on a rule. The rule is unknown to the participants, however they receive feedback whether their answer was correct. The rule changes after certain amount of trials. This experiment is based on Grant & Berg (1948) experiment.

In this task participants are required to sort the presented cards based on a rule. The rule is unknown to the participants, however they receive feedback whether their answer was correct. The rule changes after certain amount of trials. This experiment is based on Grant & Berg (1948) experiment.

German version of moral sentiment and action tendencies task, based on Antidepressant Advisor Study version but with addition of anger / punishing oneself.

vSearchNewAlpha5

In this task participants are required to memorise a sequence of square locations. Square position presentation is interrupted by symmetry trails. In symmetry trials participants are required to judge whether the presented picture is vertically symmetrical. Square presentation and symmetry trials are repeated until participants are asked to recall all square locations in sequential order. This experiment is based on Kane et al. (2004) experiment.

A basic n-back task in which sequential items are presented. Participants must click/tap the screen if this item is the same as n-back.

This is a modified version of the tower of london jspsyxh experiment avaialble here: https://gitlab.pavlovia.org/cglabbach/tower-of-london. Modifications are intended to integrate the experiment with Pavlovia.