Student Article Analysis
Routes to Remembering: the Brains Behind Superior Memory
The focus of this experimental study was to determine what causes select individuals to have superior memory capabilities when compared to the others of the general population. To determine what caused this superior memory, the used three different methods of experimentation to test three different theories. Using these methods they tested whether superior memorizers and control subjects differed in intellectual ability using neuropsychological testing, secondly did brain structure differ determined by the amount of grey matter volume in the brain, and third were there different parts of the brain activated when encoding or relaying information from the memory tests.
To test whether there was a significant difference in general intellectual performance between the superior memorizers and the general population, ten superior memorizers and ten evenly matching control subjects were tested using neuropsychological testing. This included the Wechsler Abbreviated Scale of Intelligence (WASI), and the National Adult Reading Test (NART). These both showed no significant difference between the superior memorizers and the control subjects. Comparing scores of the NART between the two showed the average mean score for the superior memorizers was 111 compared to the control subject’s score of 112. This showed no significance; suggesting superior memory is not due to general intellectual abilities.
The theory whether this superior memory was caused by structural differences in the brain was tested using structural brain imaging. The results produced by the voxel-based morphometry showed there were no significant differences in brain matter between the control subjects and the superior memorizers with a P-value of 0.05 and 0.005. These results also showed no significant difference between superior memorizers before and...
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