Thursday, June 18, 2015

Night Vision in harmony with nature sphinx hovering

As nocturnal insects feed so successful at dusk and darkness? A new study by Simon Sponberg and colleagues suggest that the vision of the Sphinx, the snail snuff, floating in place while it feeds on nectar at dusk, it is finely tuned balancing flowers in the wind.

These results mean that the visibility and flight Sphinx probably developed to the movements of the flowers would be best - their only source of food - well, helps to explain how agile insects able to follow the wind threw flowers in poor lighting conditions are.

The researchers suggest that insects have tiny brains can compensate for low light conditions to reduce their different procedures. But Sponberg et al. They also knew that these commitments to reduce the reaction time of the individual. Therefore sphinx hovering tested an artificial flower on a robot arm, which was determined from side to side at different frequencies.

The researchers found that moths follow responses were about 17% slower in the dark moon to bright light in the early evening. But the researchers also found that the movement of the artificial flower was an important factor when it moves to a higher frequency than 1.7 Hz, was following the Sphinx effort.

At frequencies below 1.7 Hertz moved on the other side had a few butterflies problems. Sponberg and his team analyzed the movements of some of the sphinxes favorite flowers as they flew with the wind, found that 94% of the flowers of the application was held below 1.7 Hertz.

Taken together, the results suggest that the Sphinx tuned able to avoid the pitfalls of visual processing slower, because in their view precisely on the conditions of their natural ambient light and motion. A related perspective by Eric Warrant, explains the study in detail.

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