هذا خلق الله فاروني ماذا خلق الذين من دونه
سبحان الله العظيم معا تقدم العلم والكتشافات كل شوية يقينا بالله بيزيد وبقدرته العظيمة

مجموعه من العلماء الامريكان ربنا سخرهم وهداهم انهم يعملو تجارب يشوفوا بيها ذاكرة الانسان دي اد ايه يعني سعتها اد ايه

ووصلوا لنتائج ادهشتهم متخيلوش كده ابدا نتيجة البحث والتجارب دي نزلوها علي الانترنت علي موقع ياهو وحبيت اجيبهالكم تقرئوه


فعلا (صنع الله الذي اتقن كل شيء)


I
f human memory were truly digital, it would have just received an upgrade from something like the capacity of a floppy disk to that of a flash drive. A new study found the brain can remember a lot more than previously believed.



In a recent experiment, people who viewed pictures of thousands of objects over five hours were able to remember astonishing details afterward about most of the objects.

Though previous studies have never measured such astounding feats of memory, it may be simply because no one really tried.

People had never tested whether people could remember this much detail about this many objects," said researcher Timothy Brady, a cognitive neuroscientist at MIT. "Nobody actually pushed it this far."

When they did push the human brain to its limits, the scientists found that under the right circumstances, it can store minute visual details far beyond what had been imagined.

n the experiment, 14 people ranging from age 18 to 40 viewed nearly 3,000 images, one at a time, for three seconds each. Afterwards, they were shown pairs of images and asked to select the exact image they had seen earlier.


The test pairs fell into three categories: two completely different objects, an object and a different example of the same type of object (such as two different remote controls), and an object along with a slightly altered version of the same object (such as a cup full and another cup half-full).

[Stunningly, participants on average chose the correct image 92 percent, 88 percent and 87 percent of the time, in each of the three pairing categories respectively. Though 14 subjects may not sound like a huge sample, the fact that they each recalled the objects with very similar rates of success suggests the results are not a fluke.


"To give just one example, this means that after having seen thousands of objects, subjects didn't just remember which cabinet they had seen, but also that the cabinet door was slightly open," Brady said.


Even the researchers didn't expect quite such high recall rates.


"We had the intuition that it might be possible, but we were surprised by the magnitude of the effect," said study leader Aude Oliva, also of MIT. "These numbers, higher than 85 and 90 percent, impressed us and also impressed a lot of people who heard about the work."


So now that we know the brain's memory is so fantastic, are we all out of excuses for forgetting friends' birthdays?