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Module: Human information processing - Essay Example

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The natural skill to immediately spot these changes is significant to human being since it plays a very important part in our daily…
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Module: Human information processing
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The Coglab experiments on Change Detection are aimed to gather substantial evidence that humans do find it difficult to instantly recognize changes in a visual scene. The idea is based on Rensink (2002) study that it will take a while with some degree of concentration for humans to detect sudden changes in an object. People according to the author don’t actually store much details of a sight in their memory and in order to distinguish an object change, a person need to concentrate on the object. The experiment presented two alternating images occasionally separated by gray field. The requirement is to identify the changes between the two versions of the picture as quick as possible to determine the time it takes for a human to respond and recognize the variation in the image precisely. There are a total of 16 trials with half of it showing images without a change and a half with a “flicker” or a mask. The inclusion of the mask is to prove that it can prevent automatic detection of change and to validate the possibility that a person is indeed need to examine every object in the scene to recognize the changed in the object.
According to researchers in the field of psychology, the person’s failure to instantly recognize or detect the changes in an object is caused by change blindness. Change blindness is believed to be the cause of many accidents particularly on the road where drivers glancing away from the road and back cannot instantly detect the changes (Rensink, 2002). A recent study also reveals that humans are in a way insensitive in detecting changes in alternating visual displays (Cohen et. al., 2005)
The word change according to Rensink (2002) is about alteration, variation, or transformation of a well-defined object in a certain period of time regardless of size and ...Download file to see next pagesRead More
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