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Animal brains 'hard-wired' to recognize predator's foot movements, Queen's study suggests

tronically captured motion of cats, pigeons and humans. People were tested on whether they could tell the direction of movement when these cues were changed.

Scrambling the dots didn't create a problem, but when the image was inverted, observers were unable to say if the animal was moving to the right or left. The researchers conclude that foot movement is an independent, important visual cue that another animal is nearby.

"The observation that it is relatively easy to get close to wild animals in a car, a canoe, or a similar vehicle might be due to the absence of the typical movement of the feet," says Dr. Troje. Similarly, the creeping movement of a hunting cat can be interpreted in terms of disguising the ballistic component in its locomotion, he adds.

"Our finding might also provide an explanation for seemingly irrational phobias towards animals that don't fit the ballistic movement pattern of a proposed 'life detector'," he says. "Snakes, insects and spiders, or birds can generate pathological reactions not observed in response to 'normal' animals."


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Source:Queen's University


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