(For example, a flash camera can produce afterimages: the flash is bright white, but the afterimage is a black dot, and the dot moves around every time you move your eyes.) In contrast, a true eidetic image doesnt move as you move your eyes, and it is in the same color as the original picture. First, an eidetic image is not simply a long afterimage, since afterimages move around when you move your eyes and are usually a different color than the original image. Eidetic imagery is not exactly the same as photographic memory, which probably doesn’t exist.Īn article in Scientific American describes eidetic images:Įidetic images differ from other forms of visual imagery in several important ways. If it exists, it’s almost exclusively found in children. An example of this would be how people always seem to remember exactly what they were doing on 9/11.Eidetic Memory is a poorly understood concept that might not even exist. The strength of a memory recorded during a time of stress is correlated with the emotional significance that a person attributes to the incident, therefore, the greater the emotion the greater chance that specific memory will undergo LTP. This particular example is dwarfed in comparison to the stress involved in more significant catastrophes, thus resulting in greater glucose levels and greater memory processing. Therefore that anxious student may be able to recall in great detail the back of the head of the classmate sitting in front of him, or the random etchings on the surface of his desk. Since the brain uses glucose as fuel, the influx of glucose stimulates greater processing within the brain, including areas of the brain involved in memory processing. When people are under stress, say as a freshman waiting anxiously in the few minutes before the winter semester exam in biology is handed out, his body pumps more glucose into the brain. ![]() ![]() That being said, the entire process of Long Term Potentiation and storage is altered when the mind is under stress. This system reflects to some extent the average binder of a York student, containing separate tabbed sections ranging from freshman biology to art history but also with loose sheets of notes drifting around throughout. There are no precisely defined lines where memory is stored within the cerebrum, yet similar memories are grouped with one another in regions throughout the cortex. After spending several months within the hippocampus, LTP is systematically filed somewhere within the cerebral cortex. The hippocampus is not, however, the final destination where Long Term Potentiation resides, but rather a phase in the assembly line of memory storage. Yet, children still develop skill-sets, such as walking, with the use of their procedural memory. During early childhood, the hippocampus develops several years after the cerebellum, and for this reason people cannot remember the first few years of their lives. Interestingly, each side of the hippocampus seems to organize and store different types of memories, with the left side storing verbal and right side storing visual memories. Peters could encircle the gym with championship banners from ceiling to floor. To think, if only the York sports teams had exceptional procedural memory, they would be able to build muscle memory at an alarming rate. ![]() Such new findings have replaced the older school of thought surrounding the notion that there is only one single system of memory. This example brings to light the fact that procedural memory and declarative memory are not only stored in different regions of the brain, but also undergo completely different processes of encoding. ![]() From then on every time he is presented with the puzzle, he will believe he is seeing it for the first time while progressively solving the puzzle faster and faster with each attempt. For example, a person with Alzheimer’s can be presented with a puzzle, which he will then solve. In many instances where people have lost their declarative memory for a reason such as Alzheimer’s, they seem to still hold onto their procedural memory. Long term potentiation (LTP) can be broken down into declarative memory (AKA explicit memory) & procedural memory (AKA implicit memory).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |