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Role of Expectation in What We See Is Stronger Than Previously Thought, Study Finds:
In the visual cortex, where the brain first begins building a picture of what your eyes are seeing, incoming information from the eyes merges with feedback signals containing contextual information originating from deeper in the brain. These feedback signals have long been considered merely “modulatory” – helping shift focus of attention to different parts of the visual field, for instance.
But in a new study in which [Andreas] Keller, fellow postdoc Morgane Roth, PhD, and Scanziani investigated what enables neurons in the visual system to respond to context when a stimulus is not available, they found that feedback from higher-order visual centers in the brain has much more influence over our fundamental visual processing than scientists had ever realized.
[...] “In other words – when there is nothing to see, the brain sees what it expects to see based on the context,” Keller said. “This work adds to a growing recognition of the brain as a ‘prediction machine.’ The simplest neurons of the visual cortex don’t just robotically process whatever data is coming in from the eye, but at the same time are comparing it to perhaps your whole visual life history to anticipate what you expect to see.”
Journal Reference:
Andreas J. Keller, Morgane M. Roth, Massimo Scanziani. Feedback generates a second receptive field in neurons of the visual cortex, Nature (DOI: 10.1038/s41586-020-2319-4)
(Score: 2, Interesting) by aristarchus on Wednesday June 24 2020, @07:58PM (5 children)
Something is wrong. A bunch of aristarchus submissions were mass rejected for no reason!
(Score: 0) by Anonymous Coward on Wednesday June 24 2020, @08:01PM (4 children)
That's not a bug, it's an enhancement request.
(Score: 2, Touché) by Anonymous Coward on Wednesday June 24 2020, @08:53PM (3 children)
What happened to your righeous indignation about websites canceling people? Don't tell me your morals and ideals only apply when convenient.
(Score: 2) by DannyB on Wednesday June 24 2020, @09:59PM
My own righteous indignation can apply when it is inconvenient as well as when it is convenient. So I am consistent.
Just as long as I can selectively apply it when I want it to -- whether convenient or not.
I am able to (somehow) define that is "being consistent", since I always, consistently, selectively apply my rules with the same arbitrary selective nature.
For example: orange man very bad. Terrible. Very bad. Bad. Very very bad.
When trying to solve a problem don't ask who suffers from the problem, ask who profits from the problem.
(Score: 0) by Anonymous Coward on Wednesday June 24 2020, @10:29PM (1 child)
What happened to having sense of humor?
(Score: 0) by Anonymous Coward on Thursday June 25 2020, @03:15AM
Aristarchus is not funny. He is deadly serious. Like a diamond bullet, through your brain. If a had a hundred men like him, this conflict would soon be over.
Signed, Col. Kurtz
Inside Cambodia