Mein Blau ist dein Blau: Verschiedene Leute von Menschen verarbeiten Farben auf die gleiche Weise. Neurowissenschaftler können vorhersagen, welche Farbe eine Person mit einem maschinellen Lernwerkzeug, das auf die Gehirnaktivität anderer trainiert wird, versucht.
https://www.nature.com/articles/d41586-025-02901-3
5 Kommentare
I’ve linked to the news release in the post above. In this comment, for those interested, here’s the link to the peer reviewed journal article:
https://www.jneurosci.org/content/early/2025/08/29/JNEUROSCI.2717-20.2025
From the linked article:
My blue is your blue: different people’s brains process colours in the same way
Neuroscientists can predict what colour a person is looking at using a machine-learning tool trained on the brain activity of others.
The pair used functional magnetic resonance imaging (fMRI) to compare activity in the brains of a group of participants while they viewed different colours. This allowed them to create a map of brain activity that showed how each hue was represented neurologically. They then trained a machine learning model called a linear classifier on this data, and used it to predict which colours were being viewed by members of a second group of study participants, on the basis of their brain activity.
The researchers found that in most cases they were able to predict which colour was being viewed by a participant in this second group, using the patterns of brain activity they had seen in the first group. They also found that different colours were processed by subtly different areas within the same region of the visual cortex, and that different brain cells responded more strongly to particular colours. These differences were consistent across participants.
The findings suggest that “there are commonalities in the way different brains encode colour and these have something to do with the way that our brains represent visual space”, says Bannert, who is also a cognitive neuroscientist at the University of Tubingen and the Max Planck Institute.
How do they conflate the signal response with internal interpretation? Just because the same area lights up that doesn’t mean the same thing is understood
This doesn’t prove that everyone has the same blue. It proves that everyone processes blue the same. Colour is an illusion and that fact alone makes it impossible to proof it’s the same for everyone.
There are tetrachromats that can see colours most of us mere mortals can’t even imagine.
I don’t see how this confirms that my blue is the same as yours. Like yes I see blue and you see blue we both recognize the color as blue but how does this show the internal color is the same?
One tiny step closer to some company putting ads in my contact lenses