TITLE:
Study of Brain Activation Using Electroencephalographic Technique for Performing Short-Term Memory Tests
AUTHORS:
E.S.F. Filho, T.V. de Oliveira Lima, D.L.R. Silva, Milton Vieira Costa, E.M.T. Filho
KEYWORDS:
EEG, Short-Term Memory, Cognition
JOURNAL NAME:
World Journal of Neuroscience,
Vol.6 No.1,
February
19,
2016
ABSTRACT: Objective: This study
aimed to compare the cortical topographic mapping while performing cognitive
activities of standardized short-term memory. Materials and Methods: The sample
consisted of 30 individuals of both gender. Each individual participant of the
survey was subjected to a short-term memory test for each sense. To carry out
the EEG record, we used an electroencephalograph with 20 electrodes. The
stimulus for the acquisition of short-term memory has always been made up of
five items from different semantic classes. Results: The posterior right
quadrant had a higher percentage of gamma rhythm during the tests of most
senses. Conclusion: It was concluded that the right back quadrant has a higher
gamma rhythms percentage during tests which involve somesthetic, olfactory and
gustatory memory. On the other hand, the predominance of a gamma rhythm
percentage in any quadrant when the auditory and visual memory was stimulated
was not observed in this study.