how rare is it to have an eidetic memory?
445744
According to several lookups on the internet, it occurs from : “The vast majority of the people who have been identified as possessing eidetic imagery are children. The prevalence estimates of the ability among preadolescents range from about 2 percent to 10 percent”. It is quite rare in adults.
1288602
There is a definite difference between eidetic and photographic memory. Everyone has an eidetic memory. However, this memory lasts less than one second for most people, no more than a few seconds for others. ... Most photographic memories only last a few months at most, as they are not relayed to long-term memory.
592652
It's incredibly rare, compared to the millions and millions of animals that have had microchips implanted in them. It's an incredibly low risk, but it can happen. People have to weigh that small risk against what can happen to their lost pet.
952378
Short-term memory – holds information you are actively thinking about. It lasts for a very brief time (less than a minute) and can only hold 7 +/- 2 pieces of information at once. Long-term memory – holds information for long periods even permanently.
984674
Short-term memory often encompasses events over a period anywhere from 30 seconds to several days. Because short-term memories need to be recalled for a lesser amount of time than long-term memories, the ability of the brain to store short-term items is more limited.
1259030
Short-term memory lasts for a very brief time and can only hold 7 +/- 2 pieces of information at once. Long-term storage can hold an indefinitely large amount of information and can last for a very long time. Implicit and explicit memories are two different types of long-term memory.
445485
It depends on a slew of factors, including our genetics, brain development and experiences. It is difficult to disentangle memory abilities that appear early from those cultivated through interest and training.
1231594
Although prior studies had hinted at babies' ability to remember people from early life, like a nursery school teacher, this was the first time they were shown to definitively remember someone they only met one time for a 45-minute study – years before. But memory doesn't always work in a conscious way.
1187663
The reason I think it is rare is just that it is more conceptually simple to front a subject. The two most common word orders are subject initial (SOV and SVO). Doing other stuff is weirder, and seems to often be accompanied by morphological changes. VSO and VOS languages are often very prefix heavy.
769715
The hippocampus, located in the brain's temporal lobe, is where episodic memories are formed and indexed for later access. Episodic memories are autobiographical memories from specific events in our lives, like the coffee we had with a friend last week.
957050
Everyone has an eidetic memory. ... Photographic memory is the ability to recall an image for a much longer period. Few people have a truly photographic memory. Even people with a photographic memory may not retain these memories for a long period.
374212
The amount of information the brain can store in its many trillions of synapses is not infinite, but it is large enough that the amount we can learn is not limited by the brain's storage capacity. However, there are other factors that do limit how much we can learn.
567291
“Is a photographic memory something we are born with, or can you train your brain to have one?” Variations in memory ability exist from young ages. Adults can improve their memory skills within limits. As for photographic memory, it's not clear it exists.
1136426
This feeling of familiarity is, of course, known as déjà vu (a French term meaning “already seen”) and it's reported to occur on an occasional basis in 60-80% of people. It's an experience that's almost always fleeting and it occurs at random.
524805
Episodic memory is about recollection of events in one's past. Autobiographical memory is one's personal history that may include episodic memories in addition to other facts about oneself (such as one's place and date of birth).
992671
Almost all modern memory cards can withstand at least 100,000 Program/Erase Cycles, and some cards can withstand as many as 10 times more cycles than standard cards. ... This reliability is thanks to a technology in the controller of memory cards that tells the camera where to write the data in the card.
1374427
In the scientific literature, the term eidetic imagery comes closest to what is popularly called photographic memory. The most common way to identify eidetikers (as people with eidetic imagery are often called) is by the Picture Elicitation Method.