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pierredv : perception   8

How the Brain's Face Code Might Unlock the Mysteries of Perception - Scientific American
Profile of Doris Tsao
Via Linda Chang
"The brain is not just a sequence of passive sieves fishing out faces, food or ducks, she says, “but a hallucinating engine that is generating a version of reality based on the current best internal model of the world”. Her ideas draw on Bayesian inference theory; only by combining perception with high-level knowledge can the brain arrive at the best possible understanding of reality, she says."
psychology  perception  neuroscience  vision  SciAm  profile 
december 2018 by pierredv
The Case Against Reality - The Atlantic
"Donald D. Hoffman, a professor of cognitive science at the University of California, Irvine. Hoffman has spent the past three decades studying perception, artificial intelligence, evolutionary game theory and the brain, and his conclusion is a dramatic one: The world presented to us by our perceptions is nothing like reality. What’s more, he says, we have evolution itself to thank for this magnificent illusion, as it maximizes evolutionary fitness by driving truth to extinction."
"So while neuroscientists struggle to understand how there can be such a thing as a first-person reality, quantum physicists have to grapple with the mystery of how there can be anything but a first-person reality. In short, all roads lead back to the observer. And that’s where you can find Hoffman—straddling the boundaries, attempting a mathematical model of the observer, trying to get at the reality behind the illusion."
"Gefter: So everything we see is one big illusion?
Hoffman: We’ve been shaped to have perceptions that keep us alive, so we have to take them seriously. If I see something that I think of as a snake, I don’t pick it up. If I see a train, I don’t step in front of it. I’ve evolved these symbols to keep me alive, so I have to take them seriously. But it’s a logical flaw to think that if we have to take it seriously, we also have to take it literally."
reality  perception  physics  philosophy  TheAtlantic  cognition 
september 2016 by pierredv
Why Retina Isn’t Enough [Feature] | Cult of Mac
Debunking claims around the "Retina" display

"Apple’s new MacBook Pros have absolutely great displays, but they need every single pixel they have, because the truth of the matter is that Apple’s got a long way to go before it catches its display tech up to the incredible power of human vision. And that’s a good thing, because it means we’ve got a lot to look forward to."
perception  retina  displays  apple 
july 2012 by pierredv
Out-of-body experience: Master of illusion : Nature Dec 2011
"Henrik Ehrsson, a neuroscientist at the Karolinska Institute in Stockholm, who uses [body] illusions to probe, stretch and displace people's sense of self" Research: "quest to understand how people come to experience a sense of self, located within their own bodies", "surprising malleability suggests that the brain continuously constructs its feeling of body ownership using information from the senses" "typically, the illusions work for around four out of five people"
psychology  perception  illusions  self  sense-of-self  **  NatureJournal 
december 2011 by pierredv
Reflections on the Mind: Scientific American - Vilayanur Ramachanran
You probably look in a mirror every day without thinking about it. But mirrors can reveal a great deal about the brain, with implications for psychology, clinical neurology and even philosophy.
perception  brain  neuroscience  mind  vision  Scientific  American 
august 2011 by pierredv
The grand delusion: Why nothing is as it seems - New Scientist
Collection of articles about various illusions and delusions: = visual perception = bias = memory = self, us/them = consciousness
psychology  delusion  illusions  perception  brain  research  NewScientist  ** 
may 2011 by pierredv
Does Language Influence Culture? - WSJ.com, Lera Boroditsky
"a flurry of new cognitive science research is showing that in fact, language does profoundly influence how we see the world"
cognition  perception  x:wsj  **  language 
july 2010 by pierredv

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