Eidetic Images

This is a simulation of a test for strong eideticism. This example is modeled after Haber's test as reported in Scientific American, April, 1969, pp. 36-44. This simulation does not provide adequate controls for a true test. Its purpose is simply to demonstrate what we mean by eidetic images and what having an eidetic image would be like.

An eidetic image is formed if you can still see, at least in some degree of detail, an "image" of the original stimulus (picture) after it has been removed. The image will appear to "linger" on the original surface it was seen, something like an after-image (except in the original color). A true eidetic image can literally be "seen" by the subject until it fades. Sometimes eidetic images can be recalled at will without significant fading. Having the ability to form eidetic images is NOT the same as having a "good memory of what was in a picture." It is, apparently, the ability to restimulate the brain to cause it to literally "see again" an object that is no longer present. The ability to form eidetic images is extremely rare.

To take the test, you will view the first image, then the second image, and then you will be asked a question. Follow the steps in order below.

STEP 1. Study the FIRST IMAGE for a few seconds. (In a controlled test, you would be timed.) Do not try to memorize what is in the picture. Just look at it.

STEP 2. Look at the SECOND IMAGE.

STEP 3. Click on down arrow to reveal question Superimpose the two images. What do you see?

Click HERE for answer and explanation.

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