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Dynamic analysis of EEG signals during spatial working memory used for either perception discrimination or planning of action

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6 Author(s)
Foteini Protopapa ; National Technical University of Athens, Athens, GR 157 80 Greece ; Dimitris Mylonas ; Konstantinos Spiliotis ; Constantinos Siettos
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We analysed multi-channel electroencephalographic (EEG) recordings during a spatial Working Memory (WM) task in order to test the hypothesis that segmentation of perception and action is present when the visual stimulus has been stored in spatial WM. To detect the interactions between different regions of the brain depending on the task we employed both Short Time Fourier Transformation (STFT) and the concept of Granger Causality (GC). Our computational analysis supports evidence that the Parietal Cortex (PC) is involved in WM processing.

Published in:

2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Date of Conference:

Aug. 30 2011-Sept. 3 2011