Difference Between Eidetic Memory And Photographic Memory
By: Nicole Beasley
Updated September 18, 2020
Medically Reviewed By: Aaron Horn
Many people wish that they had a photographic memory. It would be nice to be able to remember everything that we saw that was important automatically. However, while most people make some limited use of eidetic memory, photographic memory is rarer.
There have been many studies into people who claim to have a photographic memory. Some of the most famous people to have impressive memories include Charles Darwin, Nikola Tesla, and Teddy Roosevelt. The ability to have a photographic memory has been linked to high intelligence.
Eidetic Memory Definition
Everyone has use of eidetic memory to a degree. Eidetic memory is the ability to see an object soon after you look away. For most people, the image lasts mere seconds or less than one second. To get an idea of how well your brain makes use of eidetic memory, look at an object and close your eyes, and see how long you can still see the object in your mind's eye.
Eidetic memory is controlled primarily by the posterior parietal cortex of the parietal lobe of the brain. This is the part of the brain through which visual stimuli are processed, and images retained. For most people, these images are only retained for a few short seconds before being discarded, or information relayed to the short-term memory.
Eidetic Memory VS Photographic Memory
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. 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. Most photographic memories only last a few months at most, as they are not relayed to long-term memory. With a photographic memory, the eidetic memory is transferred to the short-term memory banks for storage, allowing it to be recalled much later.
The Debate About Photographic Memory
There has been quite a bit of debate in research and psychology circles about the existence of photographic memory. Many researchers believe that such a thing is not possible. They argue that people who remember things clearly for a long period are using the more normal memory enhancements of association or chunking. They believe that people do not see the image in their mind's eye long after the event.
In truth, there is no evidence that photographic memory is possible. However, researchers are still studying the matter, as there are people who claim to have this ability. In the end, the only person who can say definitively whether or not they can see the image in their mind's eye is the person in question.
There has also been much debate about what might make photographic memory possible. One group of researchers studied the memoirs and histories of several people, including Darwin, who claimed to have photographic memories. Their studies led to a conclusion that the ability of photographic memory is directly related to intelligence.
However, another study done about eidetic memory had opposite results. The researchers tested three groups of people of varying intelligence. The group of high intelligence and the group of average intelligence did not show any ability to retain images for more than a few seconds. However, the group of cognitively impaired subjects was able to remember the images long after the event.
How Eidetic Memory Works
Eidetic memory is a temporary form of short-term memory. When you visually see something, it goes into your eidetic memory for seconds before being either discarded or relayed to short-term memory. Once in short-term memory, it may be recalled for days, weeks or months when it will be discarded or relayed to long-term memory.
Typically when information is relayed from eidetic memory to short-term memory, it is relayed as information rather than an actual picture that you can see in your mind's eye. For example, you see your keys on the counter in passing, and later think that you need to find your keys. You remember from your short-term memory that you saw them on the counter, but you wouldn't be able to picture them there as clearly as though you were looking at them.
How Photogenic Memory Works
Photogenic memory works much differently. With photographic memory, the image of the object is preserved in short-term or long-term memory. The person who has a photographic memory can close their eyes and see the object in their mind's eye just as clearly as if they had taken a photograph, even days or weeks after they saw the object. This type of memory is very rare, and difficult to prove.
How To Get Photographic Memory
Many people would love to have a photographic memory. Not everyone is capable of getting a photographic memory. However, there are some things you can do to improve your memory in general. There are also a few methods for training your mind to take and store those mental photographs for future use.
Improving General Memory
One of the best things you can do to get a photographic memory is to improve your memory in general. There are several ways that you can do this. The best thing you can do to improve memory keeps your mind active. Doing crossword puzzles and other mind games will greatly help you train your mind to remember facts and figures, and eventually perhaps pictures.
One way to improve memory is to train the mind to associate new information or images with other images or previously known information. Associations can be used to remember nearly anything, and it is a surefire way to make sure that you remember something for longer than a few moments. Using associations or chunking information in the memory can greatly improve your recall ability.
The Military Method
There is a method of going around for getting a photographic memory called the military method. It is said that the military uses this method to train operatives to have a photographic memory. While there is no real evidence as to whether or not it is true, some people have had some success in improving memory with this method.
Before starting the military method, you must commit yourself completely to the exercise. This process will take about a month to complete, and you must do it every day for it to work. If you miss even one day of practice, it can set you back at least a week in trying to make progress you are looking for.
To use this method, you will need a room that is completely dark and free from distractions. You will also need a bright lamp or light that can be turned on or off. A windowless bathroom or closet with a ceiling light is a good option.
Get a piece of paper and cut a hole in it about the size of a paragraph on a page of whatever book or document you are trying to memorize. This way you should be able to place the paper on the book or document and only be able to see one paragraph at a time.
Sit comfortably in the small windowless room you have chosen. You should be able to turn the light on and off easily without getting up or moving around too much. Adjust the book or document so that you can see it easily and the words jump into focus when you glance at it without difficulty. This distance may vary from person to person based on eyesight and eyewear.
Place the paper over what you are trying to memorize to display just one paragraph. Turn the light off and let your eyes adjust to the dark. Then, flip the light on for a split second, look at the paragraph, and flip the light off again. You should have a visual imprint of the image in front of you, or be able to see it in your mind's eye. When the image dissipates, repeat the process.
You will repeat this process until you remember every word incorrect order of the paragraph. Doing this exercise for about fifteen minutes per day every day for a month should help you improve your photographic memory. If you are unable to remember the entire paragraph after a month, you should have at least managed to memorize a portion of it and improve your general memory.
Practice With Cards and Objects
Memorizing a deck of cards or a group of objects like dominos can help you improve your memory and train your mind to remember what it sees. Take a deck of cards such as UNO cards or playing cards, and choose three cards randomly. Memorize the cards, put them back in the deck, shuffle, and find the cards you memorized, putting them in the order they were in when you memorized them. Each day you are successful add more cards until you can do the entire deck.
You can do the same thing with dominos or other objects that are similar but different in some way. You simply draw a few in a particular order, memorize them in that order, and try to recreate it again and again, each time with more dominos or objects.
Learn To Focus And Eliminate Distractions
One of the best ways to improve your ability to recall information and images is to focus completely on what you are trying to memorize. Eliminating distractions when memorizing images or information can greatly improve your ability to store that information for later use.
Of course, you won't always be able to eliminate distractions when you want to memorize something. There could be any number of things going on around you, as well as noise or people talking in the background. To best remember information and images, you'll need to be able to hyper-focus on what it is you are trying to memorize. This can take some practice to block out distractions when necessary to memorize the information or images.
Foods That Boost Memory (omega 3s, coffee, eggs, celery)
Some foods can help boost your memory. Omega 3 fatty acids have been found in studies to reduce the loss of memory. If you want to maintain a good memory, make sure you are getting plenty of these either in a supplement or through weekly doses of salmon.
Another study by the Radiological Society of North America has shown that coffee improves memory. Too much coffee can be a bad thing, but having a morning cup or two of coffee can greatly improve brain function and memory recall throughout the day.
Several studies also point to choline as a memory booster. You can find choline in egg yolks, so eating a daily dose of hardboiled or fried eggs can greatly help you boost your short-term memory capacity. A high protein diet has also been linked to good memory. Finally, luteolin has been found to improve short-term memory. You can find that nutrient in celery.
Where To Find Help
If you find that you are losing your memory or having a very difficult time remembering things in general, you might need to seek out professional help. All of the practice in the world will not allow you to develop a photographic memory if you have a medical condition or disorder that affects your memory. If you find that you simply cannot remember things like you used to, visit a psychologist for a memory test and further diagnosis.
Frequently Asked Questions (FAQs)
How common is it to have an eidetic memory?
It is not common for people to have an eidetic memory. It is thought to be seen in kids but not much in adults. In other words, virtually no adults have an eidetic memory, less than 10% overall. “Eidetic memory” means you are able to remember a picture or visual image for a minute to several minutes, after just seeing it briefly one time. Once the picture is removed from your sight, you will be able to recall what was in it with a great deal of detail. According to an article in Scientific American, there are a few things that make an eidetic memory different from other types of recall. For example, when you see the flash of a camera, a black dot moves around in your vision afterward. Some people see black dots when they try to remember something, but people with eidetic memory do not. Moreover, if you have eidetic memory you won’t have to move your eyes to be able to recall an image and the color in the recall will be the same color as the original.
Do I have an eidetic memory?
If you want to know if you have an eidetic memory, there are sites you can look at, which can help you test this for yourself. However, since it is thought to be rarely seen in adults, you are unlikely to have this type of memory. This doesn’t mean that you don’t have a good memory, however. There are other types of memory where people can remember many things, including hyperthymestic syndrome, where you are able to remember pretty much everything that happened to you, every day of your life. Hyperthymestic syndrome is the basis of the title character in the rain man movie. You may also have an excellent memory if you utilize certain memorization techniques. These include the method of loci, which is where you visualize certain things, so you will be able to remember more, based on how they were oriented or presented to you. This can also be called the memory palace technique.
Can you train yourself to have an eidetic memory?
You are unlikely to be able to train yourself to have an eidetic memory, but you can try memory improvement techniques. You can do this by thinking about visual images in your mind, and concentrating on the details, such as imagining real scenes from life, but in your head and without looking at a picture at all. Another thing you can do is study memorization techniques, which can not only help your memory become sharper, but it may also be able to help you remember more when it comes to studying and things like that.
Is having a photographic memory real?
According to an article by Scientific American, there is no such thing as photographic memory. The article explains that the closest thing to a true photographic memory is what is known as picture elicitation method, which is a way to check for an eidetic memory. This includes looking at a picture for 30 seconds and then asking someone what they remember. The person will likely answer questions about the image in present tense and will note that the picture in their mind doesn’t move as you move, which is a good indication that you have a true eidetic memory. The way you move your eyes won’t have an impact on the color of the image either. It is not clear how exactly the formation of eidetic memory happens, so there’s no shortcut for doing this yourself at home.
How rare is a photographic memory?
According to Scientific American, as well as other sources, a photographic memory is something that may not exist. However, for people with eidetic memory, this is generally seen in children. There is a low rate of people with real eidetic memory, between 2-10% after you reach the age of adolescence.
How can I memorize everything?
The best way to memorize everything is to keep learning. As you continue to learn, your brain can keep adapting to more information, which can also cause you to have a sharper and better memory. As your memory improves, you may be able to keep it up for a long time, where you can remember a lot of things, especially when you keep trying. Consider doing everything you can think of to keep remembering things. For example, you may try memorizing Scientific American articles, and you can see how your ability to memory increases. If you find something that works, you might want to share on Facebook, share on Twitter, or any other place you have friends that may be interested. You might also want to share the Scientific American article with them, so they can improve their memories as well.
Who has an eidetic memory?
Since Scientific American has told us that there are few people that have an eidetic memory, we know that there aren’t many people that have a true eidetic memory. However, some people that have claimed to have one are C.S. Lewis, Nikola Tesla, and Leonardo da Vinci.
How can I sharpen my mind?
If you want to sharpen your mind, you will need to check out a broader perspective when it comes to memory and how it works. Alan Searleman, a professor of psychology at Lawrence University, wrote a textbook on memory and how it works, which you may want to read. Moreover, there are free articles online that can tell you how to improve your ability to memory. Techniques, memory related and memorization related may be able to help as well. You may also be able to find articles to read on Twitter, Facebook, or other social media sites, which can help you out. You might also want to look at the Scientific American, so see if they have any current articles related to memory and how to improve it, and how you should move your eyes as you’re trying to improve your memory.