3 Days
Source:
سواليف
Source: سواليف
3 Daysسواليف
Source: سواليف
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A study published in *Science* found that two crows identified the direction in which dots were moving on a screen in an average of 235 milliseconds, with accuracy close to 100% when the direction was clear. Previous studies suggest that humans and monkeys need about twice as long for similar tasks, though this study did not directly compare them with the crows. The researchers recorded activity from 248 neurons, enabling them to predict a crow’s choice about 70 milliseconds after the dots appeared—roughly 170 milliseconds before it responded. The researchers suggest that the demands of flight may have contributed to the birds’ fast processing, but the findings are preliminary because they were based on just two birds. They support the idea that advanced cognitive abilities do not require a brain structure like that of mammals.
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