Joris Vincent
@JorisVincent
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he/him Research: Computational Color Vision Teaching: Data science, research methods NL | USA | DE Cooking | Cocktails | Concerts
Berlin, DE
Joined January 2010
Tomorrow, I'll be presenting data and computational modeling to go with (some of) these stimuli. Even for these simple, achromatic, displays brightness is a complex, nonlinear interaction between local luminance, and global context capture.#ECVP.
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Very fun to present this demo to colleagues, and to the general public! Thanks for the #SciComm opportunity @ecvp_.
How do we perceive the achromatic (grayscale) color of objects in our environment? In our #ECVP2024 demo, we showed how slight variations in local and global surface properties, change our perception of two identical gray targets tremendously. Thanks to everyone who stopped by!
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When your friends psychophysics experiment is harder than you thought.
I said I was down for any number of *trials* bro. This is clearly a fucking tribulation.
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RT @Optica_FVM: Join us Oct 3-6 in majestic York, UK! Abstract submission is now open and will close on August 9. More details at https://….
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RT @Teknium1: Why do almost no papers release code, datasets, info on replication, final models, or any combination of these? I thought for….
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RT @emollick: Data visualization inspiration thanks to DALL-E: how Rothko, Basquiat, Picasso, and Monet would create an academic chart. htt….
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Archives of Depression & Anxiety: predatory academic journal, or Indie album title?.
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RT @BevilConway: This is not science. Tetrachromacy does not confer super vision, paintings by a tetrachromat will not appear more colorful….
theguardian.com
As a kid, Concetta Antico was always ‘a bit out of the box’, but it took decades for her to discover just how differently she was seeing the world
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Interesting and insightful point of view on Big. Science/Engineering? At least on effects of Big Money in science & engineering.
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RT @jeroenbosman: Ever wondered about all those organizations and infrastructures working at the European level on research policy and supp….
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RT @jeroenbosman: 1/8 Yesterday the @UNESCO delegates unanimously accepted 41c/22, the open science recommendation document. That is a land….
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Come listen to me and @LSchmittwilken talk brightness perception, computational models of the human visual system, and how/whether we can make the two meet!. (Free to attend, but registration required).
Join us Oct 12 for our second Vision and Color Data Blast! We have another line-up of great speakers from 12:30-2:30 PM ET. For abstracts & to register:
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Many thanks again to co-authors Briana Haggerty, @GKAguirre and David Brainard; thanks also to the reviewers and @SciReports for a speedy and smooth process; and to @deal_projekt for making it possible to publish this work #openaccess sans cost to us!.
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This by no means settles the question of interaction between ipRGC and cone pathways -- but it does put limits on how large an effect could be under these conditions.
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Three conclusions:.A) if there is an effect of melanopsin on this kind of detection sensitivity, it is very small;.B) Getting this kind of stimulation right, without e.g. stimulating cones with the light meant for melanopsin, is hard;.C) Thus, false positives are likely.
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We tested whether human observer ability to notice small flickering in light directed at the cones, was affected by stimulating the melanopsin ipRGCs -- through either adaptation (>5min) to melanopsin stimulation, or a pulse (<1s) of melanopsin stimulation.
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Do these ipRGCs interact with the classical cone pathways? Does stimulating them affect (conscious) visual perception? There is plenty of opportunity, but mixed evidence, for interaction.
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In addition to the "classical" pathway of visual perception through the rods and cones, the retina also contains intrinsically photosensitive retinal ganglion cells (ipRGCs), which express the photopigment melanopsin.
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