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http://cimat.repositorioinstitucional.mx/jspui/handle/1008/654| Analysis and Visualization of EEG Event-Induced Dynamic Synchronization Patterns in Cognitive Tasks | |
| JOSE LUIS MARROQUIN ZALETA | |
| Acceso Abierto | |
| Atribución-NoComercial | |
| Redes Neurales | |
| The execution of even simple cognitive tasks is characterized by the cooperation of different neural networks that are distributed across the brain, and whose synchronized activity generates oscillations of specific frequencies in the EEG [Kirschfeld, 2005]. Thus, in response to specific stimulae, one may observe not only “evoked” activity (exactly time locked to the stimulus), but also “induced” activities [Pfurtscheller and Lopes da Silva, 1999] which cannot be extracted by simple averaging, but which represent events that are localized not only spatially, but also in specific regions of the Time-Frequency (TF) plane. These events may be correlated with relative changes in power with respect of to the pre-stimulus condition (possibly due to changes in the synchronization of the underlying local neural populations [Pfurtscheller, 1977, 1992]), and therefore, may be characterized by specific activation patterns, which are located in particular regions of the TF plane, and which may be associated with specific cognitive sub-processes [Marroquin et.al., 2004; Harmony et al., 2001]. | |
| Centro de Investigación en Matemáticas AC | |
| 08-03-2006 | |
| Reporte | |
| Inglés | |
| Investigadores | |
| LENGUAJES ALGORÍTMICOS | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Reportes Técnicos - Ciencias de la Computación |
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| I-06-05.pdf | 8.67 MB | Adobe PDF | Visualizar/Abrir |