The Team!§

PsychoPy is an Open Source project, the users have access to the code and can contribute at any time! That kind of means the team is technically huge!


The Team!§

In terms of the “core team” , thanks to Pavlovia users and grants we can now fund staff to work on developing the tools and supporting users.


About the workshop§

We can’t teach you all of PsychoPy. This intro is aimed to give you a basic intro and inspire ideas on what’s possible.


Getting to know PsychoPy§


What is PsychoPy?§

It’s Psychology software in Python

PsychoPy is a Python library, an script editor (Coder) an application with a GUI (Builder)

It is, itself, entirely written in Python
  • 2002-2003: Jon began work on this for his own lab (visual neruoscience)
  • 2003-2017: a purely volunteer-driven, evenings and weekends project
  • 2017-now: still open source and free to install but with professional support (funded by grants and Pavlovia)

Goal of PsychoPy§

The aim is to enable scientists to run as wide a range of experiments as possible, as easily as possible, with standard computer hardware.

A single piece of software:
  • precise enough for psychophysics
  • intuitive enough for undergraduate psychology
  • flexible enough for everything else
  • capable of running studies in the lab or online

Choice of interface§

It’s hard to make something easy enough for undergrads and novices but flexible enough for everything else.

PsychoPy provides two main options, coder view and builder view. But you can also use code inside builder view - which is what we recommend.


Choice of interface§


The Coder view is used to create experiments from Python scripts


Choice of interface§


The Builder view is used to create experiments visually


Why do people Code?§


Why do people Build?§


What do we do?§

Our experiments are almost always in Builder, with added Code Components. I don’t ever break out and switch to pure code.

I do use code for other things, like making my ‘conditions’ .csv files, making stimuli and customizing the experiments.


PsychoPy versions§

PsychoPy is changing rapidly, especially now it has full-time programmers

You don’t want your study to change part-way through, but you do want to be able to update your software

PsychoPy experiments have a setting called useVersion that works for Builder/Python/JS experiments. Ideally:


Going further§

Builder interface:
Python programming (for experimental psych) but these are a bit outdated:

So, let’s go on and learn some Building better experiments