How your brain predictions interfere with what you see | Georg Keller | TEDxBasel

The brain has an immense power to generate predictions. However, what happens when our expectations contradict reality? Georg Keller offers new research on how we see, hear, and feel the world.
The intro animation was produced as a collaboration between TEDxBasel and the Hochschule Luzern. This animation was created by Loïc Kreyden and Valentine Moser.
Find out more about this event and the other ideas that were shared at www.tedxbasel.com Georg studied physics at the ETH in Zurich. Soon after finishing his studies, he was drawn to questions of neuroscience. He obtained his Ph.D. focusing on how songbirds listen to themselves sing. After a postdoc at the Max Planck Institute for Neurobiology in Munich, he became a research group leader at the Friedrich Miescher Institute for Biomedical Research in Basel. For the most part, his lab studies address how the brain processes sensory input and how expectations shape perception. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx

[@amurtanath1390]

That shirt change was quite sneaky! I've read his publications. Very novel work!

[@justincrediblelife]

Hahaha so sneaky! I didn't realise it until I read this! Well observed!

[@rfry5902]

Yooo predictive processing tedtalk i never thought I'd see the day alg goes crazy

[@craigcolbourn8351]

Awesome vid! That dress demo was great! Eye opening

[@piano9433]

Great content and great public speaking!

[@RicardoPena-rf3bp]

Smooth shirt trick to drive the point

[@lucasmoreira3237]

Amazing video. ♥

[@dramit4635]

Wow!

[@moiquiregardevideo]

We only see what our eyes want to see... from Madonna We only see what we predict we should see ; modern neuroscience Now we know why that robe can be seen as two sets of colors : context, supposition about the ambient light

[@darylhenry9595]

Interesting

[@OlivaSullen]

I'm lost on one point here. Why would weak predictions cause an external world to seem magical? @<a href="#" class="seekto" data-time="550">9:10</a> (in the second category where he describes autism symptoms, bottom up processing) Wouldn't we normally associate magical thinking with strong prediction/top down/schizophrenia in the first category? I thought that people with autism were more likely to perceive their environment literally, while people with schizophrenia were more likely to perceive their environment as unrealistic or magical.

[@viajedali7663]

I think he means that its magical in the sense that everything stimulates your senses, causing light, color and shapes to be overstimulating and causing sensory overload.

[@schererl181]

Actually there's evidence that people with schizophrenia perceive the world more realistic (meaning rather based on external stimuli than on their own predictions) than people without psychotic tendencies. Look up the so-called hollow-mask illusion if you're interested in learning about this :) on the other hand, I get your confusion. Many of the symptoms of schizophrenia sound as if top-down-processes dominate their bottom-up perception...

[@OlivaSullen]

@@schererl181 Yeah that's a decent point, I see where you're coming from. I think part of the issue is that even among researchers there's still so much disagreement over bottom-up vs top-down functioning. I think there's also a great deal of misunderstanding over the full scope of what kind of internal experience would be considered psychosis, especially in how it overlaps across other disorders.

[@joshua_wilson]

I don't think people with ASD perceive their environment literally. I say so because there's a study that shows that children with ASD has a weak ability to read situational cues (Tell D & Davidson D), since situational cues are basically stimuli present in the environment and they cannot detect it completely they cannot perceive the environment literally.

[@OlivaSullen]

@@joshua_wilson Is it "Autistic Adults Assign Less Weight to Affective Cues When Judging Others’ Ambiguous Emotional States"?

[@gen-x-zeke8446]

2020 here. Year of COVID-19. The only thing that stands out is the imagery of flashing when the mouse is thinking, it looks exactly like a lightning storm from outer space. They keep asking the questions to death and ruin explorations by constantly looking at theory maps. So many in philosophy spend a lifetime and still as elderly men/women cannot answer basic questions without some ongoing guess of what it could be.