Geoffrey Aguirre
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gkaguirre.com
Geoffrey Aguirre
@gkaguirre.com
1.4K followers 280 following 170 posts
Behavioral neurologist and vision scientist at the University of Pennsylvania https://www.gkaguirre.com/
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As it is spooky season, you should read this study of Aztec skull whistles, and listen to the screaming sounds that they produce.
The scary sound of Aztec skull whistles
caneuro.github.io
Anytime! A favorite topic.
Data matrix inadvertently transposed
Reposted by Geoffrey Aguirre
Today, the PhD student I co-supervised with Dr. Toni Saarela, Lari Virtanen, is defending his thesis on color ensemble perception at the University of Helsinki. It is both a happy and a sad day. Toni passed away only two weeks ago and just missed seeing his first PhD student graduate. RIP Toni ❤️😔
Reposted by Geoffrey Aguirre
Application now open: Career Awards for Medical Scientists (CAMS) is a highly competitive program that provides $700,000 awards over 5 years for physician-scientists, who are committed to an academic career
Deadline: 10/07/25
www.bwfund.org/funding-oppo...
#bwfcams
I have looked at this. The effects of 30 years of aging are…not encouraging.
Honestly, getting in the scanner regularly is a weird perk of this career. This is hard to explain to other people.
Reposted by Geoffrey Aguirre
Our new paper, “A neural compass in the human brain during naturalistic human navigation” is out in @sfnjournals.bsky.social! First-author @zhenganglu.bsky.social led the charge, with Josh Julian and collaborator @gkaguirre.com.

www.jneurosci.org/content/earl...
Really interesting summary. Thanks!
Reposted by Geoffrey Aguirre
I found the manual for this. It can measure luminance if you also buy the optional viewfinder. [ps: sorry for all of the light-splaining if that was not what you were asking about]
Looking on Amazon, every device I can find that says it can measure “Luminance” is actually an “Illuminance” photometer. Here is an example luminance meter (not necessarily recommending this) sensing.konicaminolta.us/us/products/...
LS-150 Luminance Meter | Konica Minolta Sensing
The LS-150 Luminance Meter (successor to the LS-100) is a highly accurate luminance meter that uses a newly designed sensor with a spectral response.
sensing.konicaminolta.us
The linked device mentions an optional viewfinder, so maybe it can measure luminance too.
Luminance, on the other hand, is a measure of the light emitted by a surface (units: cd/m2). A device for measuring luminance needs optics to focus on a specific surface with an aperture of a specific size (in degrees of visual angle). This is used to measure (e.g.) the light from a screen.
There are many inexpensive options to measure illuminance (units: lux) which is a measure of the light falling on a (typically) flat sensor. Illuminance is used to describe (e.g.) the lighting conditions in an environment. The linked device looks up to the job.
Ordered! Thanks for the post.
Reposted by Geoffrey Aguirre
🧠✨ Excited to share that our literature review on retinotopic mapping in the human visual cortex is now published!
tinyurl.com/5d9ne68b

Amazing collab with Noah Benson and Alex Puckett! We hope this will be a helpful resource for pRF modellers and visual neuroscientists!
Human retinotopic mapping: From empirical to computational models of retinotopy | JOV | ARVO Journals
tinyurl.com
The next macOS version is bringing the bouba.