@olafdimigen #Pupil #retina #visual I think this is an important new finding, which matches (and was inspired by) recent mouse studies: https://www.nature.com/articles/s41467-025-62736-4 4/4 🧵
Pupil size modulation drives retinal activity in mice and shapes human perception - Nature Communications

The pupil is known to assist retinal adaptation to light level changes. Here, the authors find a mechanism for how the pupillary light reflex drives monocular and binocular retinal activity in mice and shapes conscious visual perception in humans.

Nature
@olafdimigen #Pupil #retina #visual We observed a similar (but weaker) constriction-locked response later over visual cortex. Given these findings, an important open question is how the visual system maintains brightness constancy despite pupil-induced retinal and cortical activity. 3/4 🧵
@olafdimigen #Pupil #retina #visual Participants viewed flashes, triggering an initial burst of retinal activity followed by pupil constriction. We then used trial-to-trial variability in constriction latency to reveal a previously unknown retinal response that is locked to pupil constriction, rather than to visual stimulation. 2/4 🧵
❤️‍🔥 Exciting new preprint ❤️‍🔥 #Pupil constriction causes, by itself and independently of visual stimulation, activity in the human #retina and #visual system. w/ @olafdimigen 1/4 🧵
https://www.biorxiv.org/content/10.64898/2026.04.14.718411
School grades, assessments, parent communication – Pupil manages some of the most sensitive information there is: children's data. 🇨🇭 When the platform was rolled out across the canton, one thing was clear: nothing could go wrong here. Pupil AG chose our Nine Kubernetes Engine, combined with Managed Databases, Object Storage, and a 24/7 SLA. All school data remains in Switzerland. 🔐 To the case study: https://nine.ch/en/case-studies/pupil-ag/ 📚 #kubernetes #pupil #edtech #datenschutz #nine
https://www.theguardian.com/education/2026/apr/04/masculinity-crisis-brewing-uk-schools-teachers-union. "Teachers’ leaders have said a 'masculinity crisis' is fermenting in #schools across the UK, with #misogynistic abuse of #female staff on the increase, leaving #victims 'traumatised', 'demeaned' & 'humiliated'. Almost a quarter of female #teachers who took part in a union survey said they have been the target of #misogyny from a #pupil over the past 12 months - the highest proportion in the last 4 years of #surveys."
A ‘masculinity crisis’ is brewing in UK schools, union says

Misogynistic abuse of female staff is increasing, leaving teachers feeling ‘traumatised’ and ‘humiliated’

The Guardian

#pupil : the sight, apple, or black of the eye. see the note under eye, and iris

- French: élève

- German: die Pupille

- Italian: pupilla

- Portuguese: pupilo, pupila

- Spanish: pupila

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Technical debt, infrastructure concerns at software companies, and NixOS – that's what our last TechTalkThursday was all about in September. 💬 This time, we again had three external speakers: Patrick Scheller, Lukas Lehmann, and Lena Fuhrimann. 💻 You can read the complete summary of the event and the speeches here https://nine.ch/looking-back-on-our-techtalkthursday-25/ on our website. ⬅️ #techtalkthursday #technicaldebt #softwareinfrastructure #nixos #pupil #bespinian #nine

#pupil : the sight, apple, or black of the eye. see the note under eye, and iris

- French: élève

- German: die Pupille

- Italian: pupilla

- Portuguese: pupilo, pupila

- Spanish: pupila

------------

Try our new word guessing game @ https://24hippos.com

24 Hippos : Word Guessing Game

24 Hippos is an hourly word guessing game that is powered by Word of The Hour (WoTH).