Perplexing perceptions brain games

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More to explore :. We do this by processing the changing patterns of light into a perception of motion — but many aspects of how this happens are still not understood. Thinking things are moving at a different speed than they really are can sometimes have catastrophic consequences. For example, people tend to underestimate how fast they are driving in foggy conditions, because dimmer scenery appears to be moving past more slowly than it really is.

The researchers showed in a previous study that neurons in our brain are biased towards slow speeds, so when visibility is low they tend to guess that objects are moving more slowly than they actually are.

Revealing more about the reverse-phi illusion is just one example of the way that MotionNet is providing new insights into how we perceive motion. With confidence that the artificial system is solving visual problems in a very similar way to human brains, the researchers hope to fill in many gaps in current understanding of how this part of our brain works. Predictions from MotionNet will need to be validated in biological experiments, but the researchers say that knowing which part of the brain to focus on will save a lot of time.

Welchman, February , Journal of Vision. DOI: Email address is optional. If provided, your email will not be published or shared. Home Science News By University of Cambridge November 3, A computer network closely modeled on part of the human brain is enabling new insights into the way our brains process moving images — and explains some perplexing optical illusions.