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John Butler

@jslbutler

TU Dublin Maths/Stats/Comp/Neuro Lecturer | Multisensory Researcher | FENS Communication Committee | He/Him

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01.01.2024
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Latest posts by John Butler @jslbutler

The @neuromatch.bsky.social compneuro summer school is excellent.
And I recommend it to anyone interested in maths, neuroscience, modelling and/or machine learning.

03.03.2026 08:21 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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PhD opportunities The School of Convergence Science at Imperial College London is inviting applications for fully funded PhD studentships on research projects that sup...

PhD opportunity in "The role of neural development in multimodal intelligence" with me, @marcusghosh.bsky.social and @flor-iacaruso.bsky.social. Read details below πŸ‘‡.

Note there's a very short window for applying (deadline Feb 27).

πŸ€–πŸ§ πŸ§ͺ

www.imperial.ac.uk/school-of-co...

11.02.2026 18:41 πŸ‘ 22 πŸ” 22 πŸ’¬ 2 πŸ“Œ 0

I’m a bit late to reading this article by @marcusghosh.bsky.social in the @thetransmitter.bsky.social
I really enjoyed it.
I’m definitely pro toy mathematical models, I believe they can be informative and push research forward.

07.02.2026 10:41 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

There is definitely nothing weird about Musk repeating β€œI’m pro-human”. Some of my best friends are human and I would definitely want AI to keep them in a safe in a future human sanctuary.
Nothing weird at all.

07.02.2026 10:37 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Not just for Paddington: is the humble duffel coat having a fashion moment? Worn by everyone from Tyler, the Creator to Cole Palmer and Joe Wilkinson, duffels are back in demand

It seems you might be cool, well for a moment
www.theguardian.com/fashion/2025...

03.12.2025 16:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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🎧 New #FENS - #EJN Journal Club episode.

πŸ† In this episode Paul Sauseng discuss his paper that won the @ejneuroscience.bsky.social Best Publication Award in 2025!

πŸ‘‰ Tune in here: https://loom.ly/9-n-ND8

01.12.2025 14:30 πŸ‘ 3 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

Did they mean it is more common in friendly Peruvian bears.
Also I just finished watching Leonard and Hungry Paul.
I found it very faithful to your book so it was a joy to watch.

20.11.2025 13:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thanks James and feel free to use them.
I really enjoy the face recognition one.
All kids should learn how to do dot products and ICA.
I'll be adding accessible code of kids that will link with the leaving cert computer science course over the next while.

13.10.2025 19:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Day 1: Predator–Prey Dynamics πŸΊπŸ‡
Explore how maths models the balance of nature, from hares & lynx to the reintroduction of wolves & deer in Yellowstone, and reveals surprising ecological connections.
john-s-butler-dit.github.io/Maths-in-the...

13.10.2025 15:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I’ve created five one-hour workshops for primary & secondary students, all free to use, showing how maths helps us understand the world
Each workshop includes:
πŸ“Š Slides
πŸ“ Worksheets (short for primary, detailed for secondary)
βœ… Full solutions
I’ll share one workshop each #MathsWeek2025 day!

13.10.2025 15:58 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Each year, #mathsweek is a few weeks after the equinox. So, this year some mathematicians were given the job of studying time. They started out by counting seconds. However, they quickly got bored and after 24 hours they called it a day. @diasdunsink.bsky.social

13.10.2025 07:20 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

As part of #mathsweek, there is a special LΓ‘ na Mata organised in Galway, including @davidstifter.bsky.social, @cathal.bsky.social and others. So, I have a few as Gaeilge maths jokes...

12.10.2025 08:06 πŸ‘ 15 πŸ” 2 πŸ’¬ 2 πŸ“Œ 2

Studying for a geometry exam during #mathsweek? My top tip? Make sure to cover all the angles.

11.10.2025 08:31 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 1

I was hoping you would be jokes posting for maths week.
This has made my day

11.10.2025 13:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a man wearing a white shirt and tie smiles in front of a window ALT: a man wearing a white shirt and tie smiles in front of a window

I've been waiting some years to make this joke and now it’s real:

I conned somebody into giving me a faculty job!

I’m starting as a W1 Tenure-Track Professor at Goethe University Frankfurt in a week (lol), in the Faculty of CS and Math

and I'm recruiting PhD students πŸ€—

23.09.2025 12:58 πŸ‘ 188 πŸ” 31 πŸ’¬ 30 πŸ“Œ 3
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#ComputationalScience should be open to everyone. At Neuromatch, we run global courses with team activities, TAs, learning pods, and projects…but we also share all the learning materials to everyone.

πŸ€“ #OpenSource #OpenAccess & #Free

➑️ neuromatch.io/open-educati...

#OpenScience #OpenEducation

12.09.2025 07:49 πŸ‘ 19 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0

And few subgroups to follow up on the panel

04.09.2025 19:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We printed 50+ Eigen-portraits and gave out loads of stickers
Huge thanks to everyone who came by. I really believe @dublinmaker.bsky.social event is a force for good as it celebrates equally all types of making from science, maths, engineering, jewellery making, weaving, robots, art to cosplay!

01.09.2025 10:18 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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My 11-year-old and I ran a table at @dublinmaker.bsky.social this weekend, mixing maths, art, neuroscience, and machine learning.
Over 100 people joined us to sketch emotions, act them out, and see their faces transformed into Eigenfaces using maths and computing.

01.09.2025 10:18 πŸ‘ 10 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
Steve Furber powerpoint slide showing picture of Ada Lovelace and a quote: "I have my hopes, and very distinct ones too, of one day getting cerebral phenomena such that I can put them into mathematical equations--in short, a law or laws for the mutual actions of the molecules of brain. .... I hope to bequeath to the generations a calculus of the nervous system."

Steve Furber powerpoint slide showing picture of Ada Lovelace and a quote: "I have my hopes, and very distinct ones too, of one day getting cerebral phenomena such that I can put them into mathematical equations--in short, a law or laws for the mutual actions of the molecules of brain. .... I hope to bequeath to the generations a calculus of the nervous system."

incredible Ada Lovelace quote highlighted in a talk by Steve Furber. She spells out the dream of computational neuroscience, 2 centuries ago. The sheer ambition 🀩

29.08.2025 09:21 πŸ‘ 78 πŸ” 21 πŸ’¬ 1 πŸ“Œ 1
Promotional graphic for Dublin Maker featuring a blue banner at the top with the phrase β€œDid you know?” in white text. Below, the white background displays two columns listing scheduled workshops for Saturday and Sunday in black and blue text. The Dublin Maker logo appears in the bottom right corner.
Saturday Workshop Schedule:
β€’	11:00–11:30: Maker Meet – Build a Geodesic Dome
β€’	11:30–12:15: Maker Meet – Superhero Flyers
β€’	12:30–13:15: Green Screen Day
β€’	13:30–14:15: Cardboard Creations
β€’	14:30–15:15: The Connective Detective – Build Your Own Smart City
β€’	15:15–17:45: Digital Mirror Workshop
Sunday Workshop Schedule:
β€’	10:30–11:30: Maker Meet – Cardboard Creations
β€’	11:30–13:00: DIY Zine-Making Workshop – Come along and MAKE your own zine!
β€’	13:30–14:15: Cantonese in Ireland – Miniature Flowerboard Workshop
β€’	14:30–15:15: Cardboard Creations
β€’	16:00–16:45: Maker Meet – Origitative Origami

Promotional graphic for Dublin Maker featuring a blue banner at the top with the phrase β€œDid you know?” in white text. Below, the white background displays two columns listing scheduled workshops for Saturday and Sunday in black and blue text. The Dublin Maker logo appears in the bottom right corner. Saturday Workshop Schedule: β€’ 11:00–11:30: Maker Meet – Build a Geodesic Dome β€’ 11:30–12:15: Maker Meet – Superhero Flyers β€’ 12:30–13:15: Green Screen Day β€’ 13:30–14:15: Cardboard Creations β€’ 14:30–15:15: The Connective Detective – Build Your Own Smart City β€’ 15:15–17:45: Digital Mirror Workshop Sunday Workshop Schedule: β€’ 10:30–11:30: Maker Meet – Cardboard Creations β€’ 11:30–13:00: DIY Zine-Making Workshop – Come along and MAKE your own zine! β€’ 13:30–14:15: Cantonese in Ireland – Miniature Flowerboard Workshop β€’ 14:30–15:15: Cardboard Creations β€’ 16:00–16:45: Maker Meet – Origitative Origami

Two full days of hands-on workshops at #DublinMaker? From superhero flyers to smart cities and origami wonders - there’s something for every curious mind.
Check the full schedule & plan your maker adventure: www.DublinMaker.ie

28.08.2025 09:11 πŸ‘ 5 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

@dublinmaker.bsky.social is a phenomenal free family event. Where else can you meet knitters, weavers, zine makers, robots and a middle aged mathematician (me) showing face recognition algorithms.
I’ve all my regalia ready come along so some sketching, lean some maths get your own eigenface.

26.08.2025 08:42 πŸ‘ 4 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
Dublin Maker - Know Before You Go
Dublin Maker - Know Before You Go YouTube video by Dublin Maker

Dublin Maker is happening this weekend - 30th & 31st of August in Leopardstown Racecourse.

In this video, organiser Amy Hassett shares everything you need to know before you go – from getting here & accessibility to top tips on getting involved.

www.youtube.com/watch?v=m991...

25.08.2025 16:07 πŸ‘ 6 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1

Check out our new multisensory decision study!
We tackle a decades-old Q: does faster detection of bimodal targets come from a race or co-activation between modalities? And also a vital, orthogonal Q: is it one decision process or two?
A1: co-activation
A2: two!
Read here: rdcu.be/eASYd

21.08.2025 10:54 πŸ‘ 19 πŸ” 11 πŸ’¬ 1 πŸ“Œ 0
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I'm delighted to be back at @dublinmaker.bsky.social with the Digital Mirror workshop which shows the links between maths, portraiture, neuroscience and machine learning.

14.08.2025 09:24 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
SNUFA 2025 Spiking Neural networks as Universal Function Approximators

Spiking neural networks people, this message is for you!

The annual SNUFA workshop is now open for abstract submission (deadline Sept 26) and (free) registration. This year's speakers include Elisabetta Chicca, Jason Eshraghian, Tomoki Fukai, Chengcheng Huang, and... you?

snufa.net/2025/

πŸ€–πŸ§ πŸ§ͺ

07.08.2025 11:56 πŸ‘ 30 πŸ” 16 πŸ’¬ 2 πŸ“Œ 0
A diagram showing 128 neural network architectures.

A diagram showing 128 neural network architectures.

How does the structure of a neural circuit shape its function?

@neuralreckoning.bsky.social & I explore this in our new preprint:

doi.org/10.1101/2025...

πŸ€–πŸ§ πŸ§ͺ

🧡1/9

01.08.2025 08:26 πŸ‘ 109 πŸ” 40 πŸ’¬ 6 πŸ“Œ 7
Pattern-pulses and pattern-reversals evoke different cascades of cortical sources in the multifocal visual evoked potential | JOV | ARVO Journals

Delighted to share this paper, now published in @arvoinfo.bsky.social. With @spk3lly.bsky.social‬ and Anna Geuzebroek we explored differences in visual cortical responses for pattern pulses and pattern reversals. Here's the link:
jov.arvojournals.org/article.aspx...

29.07.2025 13:33 πŸ‘ 10 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1
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Lundbeck Foundation Postdoc Grant – Type 2 Overview (2025 Call) Lundbeck Foundation Postdoc Grant – Type 2 Overview (2025 Call) Who: Researchers currently based outside Denmark who wish to move and conduct postdoctoral research at a Danish institution. Applicants ...

Are you an ECR in the US? Thinking about moving to Europe? If you work on computational psychiatry, neuroscience, metacognition, or brain-body interaction, I’d love to support your application for a Lundbeck Fellowship to join our group this fall.

Key details: docs.google.com/document/d/1...

28.07.2025 09:07 πŸ‘ 27 πŸ” 20 πŸ’¬ 1 πŸ“Œ 1

It practically writes itself.
In episode 1 you have to compromise about where to live to so you end up in Tullamore.
It will be a comedy of misunderstandings like the Irish Frasier. It even has a theme song.
🎡 He’s a little bit country, she’s a little bit Kerry.

27.07.2025 12:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0