Friday, 27 Feb, 2009 Health & Fitness

People Choose By Themselves What to Memorize Or Not


People choose what information to keep in their short-time memory. Recently, by using Functional Magnetic Resonance Visualization (fMRI), researchers were finally able to see what human beings keep in their memories, Medstream reports.

Psychologists from the University of Oregon and of California, by analyzing the activeness of the blood flow, have determined whether the color or the spatial situation of the object had been deliberately remembered by the person in case.

In the experiment participants were watching the objects for just a second, and then scientists measured how long the image of the object had been memorized. Ten seconds after each session, they made a record of the brain activeness by studying the process of option and memory saving in the visual cortex - the area which processes the visual details in the short-time memory.

"The interesting fact was that if the participants memorized the place where the object was situated, they wouldn't notice the information about the color at all, even if the object was colored. Respectively, when they memorized the color, they could not memorize the situation of the object", mentioned Edward Ouch, professor of Psychology.

Researchers used a machine for calculating algorithms in order to be able to study the spatial models of activeness in the visual cortex, linked to memorization of different stimuli. "This algorithm allows forecasting with accuracy which of the given models will be memorized and by whom", John T.Serences, also a professor of Psychology, reports.

The respective study is similar to the one made by the neurologist Frank Tong Wonderbuilt, who could predict with the accuracy of 80 percent what people would remember 11 seconds later after seeing an object.

"They only observed the brain activeness for being able to determine which of the characteristics will be saved into the memory", said Ouch. His study had showed that the sensorial area of the brain contains a model, according to which the characteristics of the object seen are purposely being saved. This means that memorization is a voluntary process and people usually choose by themselves what is important for them to keep in mind.

"Basically, our research shows that the information about the peculiarities of the memory is kept in the visual cortex", Serences reported. Thus, one uses the same mechanisms for processing the information and for memorizing it.

Posted by summer_rain

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