Josh de Leeuw
Cognitive Scientist at Vassar College. Currently working on open source tools for researchers.
Creator and maintainer: https://www.jspsych.org
- Replicating an eye tracking experiment in my research methods course this semester, so I built an integration for Tobii systems. This works for any of the Tobii Pro hardware, and, with the right SDK install, older hardware too. We're running an X3-120 with it. Feedback welcome!
- We just released an integration for Tobii eye tracking systems 👀 github.com/jspsych/tobi...
- Reposted by Josh de LeeuwTwo days left to donate to Children Helping Science with 1-to-1 matches from an anonymous donor up to $100K! giving.mit.edu/search/node/... For fun: 1 repost = 1 citation to a paper with data from Children Helping Science/Lookit!
- This is a fundraising post! An anonymous donor is matching contributions to Children Helping Science up to 100K through the end of the year - if it's in your giving budget, please consider supporting open science infrastructure! giving.mit.edu/search/node/... Details below...
- Reposted by Josh de LeeuwYou can do this right now: Think of a person who wrote a paper you love, whose work influenced or helped you, or has made your professional life better. Search up their email address. Shoot them a quick email of thanks. It means so, so much. This is a rough time of year, share some joy.
- Reposted by Josh de LeeuwThis is a fundraising post! An anonymous donor is matching contributions to Children Helping Science up to 100K through the end of the year - if it's in your giving budget, please consider supporting open science infrastructure! giving.mit.edu/search/node/... Details below...
- It's the second Tuesday of the month, which means I'm doing drop-in office hours for #jspsych support on our discord. 10:30-11:30 EDT. discord.gg/RCKWJ4qb3p
- Today from 5-6 ET / 2-3 PT, Becky Gilbert is going to host an open office hour for help with jsPsych. Becky is a software engineer for Children Helping Science. Did you know that you can now use jsPsych to build studies that run on CHS (formerly Lookit)?
- We've just launched a Discord server for #jsPsych users to collaborate and get technical help. I'll be hosting office hours tomorrow from 10:30-11:30 AM EDT. Hop in with any questions! discord.gg/RCKWJ4qb3p
- Really enjoyed getting to participate in open source development with the team from COS! Pretty soon, you'll be able to connect an OSF component to DataPipe (pipe.jspsych.org) directly through your OSF account.
- doing live office hours in 10 minutes! drop by with any jspsych questions and I'll do my best to assist.
- We've just launched a Discord server for #jsPsych users to collaborate and get technical help. I'll be hosting office hours tomorrow from 10:30-11:30 AM EDT. Hop in with any questions! discord.gg/RCKWJ4qb3p
- We've just launched a Discord server for #jsPsych users to collaborate and get technical help. I'll be hosting office hours tomorrow from 10:30-11:30 AM EDT. Hop in with any questions! discord.gg/RCKWJ4qb3p
- Application review begins on 10/1; still time to apply!
- Vassar College is hiring a tenure track assistant professor in cognitive science. vassar.wd1.myworkdayjobs.com/en-US/Vassar... I'll be at #CogSci2025 - happy to chat about the position and life at Vassar.
- Reposted by Josh de LeeuwWe are running a virtual hackathon for #hacktober! Info and signup here: jspsych.github.io/hackathon/virtual_2025.html We will be hosting drop in office hours help during the hackathon, so this is a great chance to level up your jspsych skills!
- Reposted by Josh de LeeuwDon't worry academics, it's still only August 32nd. Still plenty of time!
- Reposted by Josh de Leeuwtryin' to be in the band, not the band manager. todd.gureckislab.org/2024/09/25/l...
- Representing @vassar.bsky.social at #cogsci2025. My favorite part of the conference was catching up with all these amazing alums!
- Vassar College is hiring a tenure track assistant professor in cognitive science. vassar.wd1.myworkdayjobs.com/en-US/Vassar... I'll be at #CogSci2025 - happy to chat about the position and life at Vassar.
- Heading to #CogSci2025 🥳
- paging @cogscisociety.bsky.social 👀
- making this my platform and running in the next governing board election
- Want to know what kinds of studies webcam-based eye tracking can be used for? Here's our take on the current tech. This certainly isn't the first paper on this topic, but it provides some converging evidence about the viability of eye tracking with online methods. online.ucpress.edu/collabra/art...
- This project started in Spring 2021, in my research methods class. Normally my class does replications of EEG studies (e.g., doi.org/10.1525/coll... & doi.org/10.15626/MP....), but in Spring 2021 we had to do the class remotely. So we tackled online eye tracking instead.
- This was a big undertaking, and @anjames2.bsky.social, @ryskin.bsky.social and Josh Hartshorne all pitched in to help plan, analyze, and report the work. Super grateful for wonderful collaborators to do this with. I don't think this project would have made it to publication without Ariel's heroics.
- If you could change 1 or 2 things about the software used for academic journal editorial processes (e.g., manuscript submission, peer review, publishing), what would it be? 👀 #academicsky
- Maybe a slightly clearly phrasing: if you could change something about the user experience of these tools, what would it be?
- Reposted by Josh de LeeuwAfter a few days to fix some bugs, we will be holding another online Psych-DS tutorial on Wednesday, June 4, 12pm EDT. This is an informal workshop designed to help you convert a dataset to Psych-DS - BYO or find an open dataset at osf.io/mbvk4. Sign up here: docs.google.com/forms/d/e/1F...
- Reposted by Josh de LeeuwThat's a wrap on our first ever hackathon! Thanks to all of the wonderful people who attended. Lots of amazing projects and collaborations got started. 🥳
- I feel this too, but I think it might be a context effect. My working memory in this context is just not very good compared to working with LLMs.
- I made a page that lets you see hyperbolic teal - which could be olo. jodeleeuw.github.io/olo/
- Behold! Novel quale! (Just off teal with the brightness turned up) #philmind www.scientificamerican.com/article/rese...
- Inspired by 👇
- jspsych will soon* support generating psych-ds metadata automatically from an experiment timeline. we have done most of the implementation and are ironing out the final details. *probably summer 2025
- Psych-DS is (1) spellcheck for your datasets and (2) a pathway to standardizing data in our academic fields that *everyone* can learn. And it's live RIGHT NOW! psych-ds.github.io (This is the announcement post I've been leading up to)
- Reposted by Josh de LeeuwPsych-DS is (1) spellcheck for your datasets and (2) a pathway to standardizing data in our academic fields that *everyone* can learn. And it's live RIGHT NOW! psych-ds.github.io (This is the announcement post I've been leading up to)
- Reposted by Josh de LeeuwToday's post is on @mcxfrank.bsky.social's book Experimentology, and specifically the chapter on Project Management experimentology.io/013-manageme... (full disclosure, I've collaborated on projects with Mike, specifically on ManyBabies, which gets a shout-out in this chapter)
- Reposted by Josh de LeeuwI have a big update* coming next week for anyone that works with research data, especially in the social sciences. To warm up, I'm recapping resources that help you develop good intuitions for data management - if you have others you'd like to see, share below! (*It's about Psych-DS, get excited!)
- Reposted by Josh de Leeuw🌍 Join the Heat & Cognition ManyLabs project! We're studying how extreme heat affects human thinking, social behavior & well-being — globally. Contribute & co-author: 🔗 Info: heatandmind.wordpress.com 📋 Sign up: www.soscisurvey.de/HeatandCogni... #ManyLabs #EnvironmentalPsychology
- We still have space for a few more folks to attend. All expenses paid!
- We're hosting a hackathon in May! This is aimed at jsPsych users who want to learn how to contribute to open source software and extend jsPsych. It's free, and we'll cover travel expenses. Learn more and sign up here: jspsych.github.io/hackathon/sp...
- What a herculean lift by @karlinave.bsky.social and team! 👏 Some former @vassar.bsky.social cognitive science students contributed as one of the replicating labs. It was a great learning experience for us.
- It's got a boring title but this preprint is being submitted for Stage 2 consideration at AMPPS, and is in fact very exciting! Karli Nave led a group of labs that replicated an influential EEG study on auditory beat perception by Nozaradan et al. (2011). We found: www.biorxiv.org/content/10.1...
- Reposted by Josh de LeeuwThis sounds really awesome and I wish I could swing applying to this. The jsPsych library is great so definitely consider it.
- We're hosting a hackathon in May! This is aimed at jsPsych users who want to learn how to contribute to open source software and extend jsPsych. It's free, and we'll cover travel expenses. Learn more and sign up here: jspsych.github.io/hackathon/sp...
- Reposted by Josh de LeeuwWe're hosting a hackathon in May! This is aimed at jsPsych users who want to learn how to contribute to open source software and extend jsPsych. It's free, and we'll cover travel expenses. Learn more and sign up here: jspsych.github.io/hackathon/sp...
- We've launched a jsPsych newsletter 📬
- We've launched a newsletter to provide updates on development, spotlight community projects, and share information on events like live workshops and hackathons. You can subscribe here: www.jspsych.org/latest/newsl... We anticipate sending no more than 1-2 emails a month.
- Reposted by Josh de LeeuwI wrote a quick Python package, QuickEEG, to simplify processing EEG data. The core functionality is there but I need to build the documentation and specific use-case functionality. Would there be any interest if I develop this into a full fledged package? github.com/chadcwilliam...
- Reposted by Josh de Leeuw📣 #PhD position announcement📣 (please share) We're seeking applicants for a joint venture with University of St. Andrews (lead by Thomas Otto) exploring how we can optimise measures of #multisensory #perception for remote data collection. Find out more here👇 buff.ly/3ZJk131
- Grad admissions question: Some of the recommender portals don't require responses to the scales where I have to declare that this student is a once-in-a-generation talent. Am I hurting the student's chance of admission if I just leave those blank? (Please say no 🤞) #academicsky
- Reposted by Josh de LeeuwFollow us for announcements about jsPsych, like our upcoming in-person hackathon. We'll be funding travel for folks to come and learn how to contribute to the jsPsych ecosystem. More info soon!
- Reposted by Josh de LeeuwNSF makes you say who you got conflicts (coauthored) with. We (really just Jordan Matelsky) just built you a tool for that. Literally one click: bib.experiments.kordinglab.com/nsf-coa
- We're still doing this for the next 2 weeks, and looking for more volunteers. The interviews so far have been enormously helpful for us! Please consider sharing with someone who might be a good match for us to talk to, or send me their contact info via a DM and we'll reach out.
