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lightning in sky over Rochester
Can we unconsciously ‘hear’ distance?
Because sound travels much more slowly than light, we can often see distant events before we hear them. That is why we can count the seconds between a lightning flash and its accompanying thunder. Now researchers in the Department of Brain and Cognitive Sciences have shown that our brains can also detect and process sound delays that are too short to be noticed consciously, and that we use that information to fine tune what our eyes see when estimating distance.