Memorias de investigación
Ponencias en congresos:
Brain rhythms alterations and their effect in functional networks: A simultaneous EEG/fMRI study in Fixation-off epilepsy
Año:2012
Áreas de investigación
  • Fisica me - fisica medica,
  • Medicina clínica y epidemiología,
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
Fixation-off sensitivity (FOS) denotes the forms of EEG abnormalities, which are elicited by elimination of central vision or fixation. The phenomenon seems to depend on variables that modulate the alpha rhythm, however, the cerebral mechanisms underlying FOS remain unclear [1]. The scarce previous fMRI findings related to FOS have shown activation in extrastriate cortex [2] and also in frontal areas [3][4]. On the other hand, simultaneous EEG-fMRI technique has been used to assess the relationship between spontaneous power fluctuations of electrical rhythms and associated fMRI signal modulations. These studies have identified that lateral frontoparietal networks show a negative correlation with alpha band in healthy subjects. This neuroanatomical pattern is related to attentional processes and cognitive resources. Moreover, a sub-beta band (17-23 Hz) has been identified with posterior cingulate, temporoparietal junction and dorso-medial prefrontal cortex activations, which correspond to the DMN [5][6].
Internacional
Si
Nombre congreso
International Society of Magnetic Resonance in Medicine
Tipo de participación
960
Lugar del congreso
Melbourne
Revisores
Si
ISBN o ISSN
1545-4428
DOI
Fecha inicio congreso
05/05/2012
Fecha fin congreso
11/05/2012
Desde la página
370
Hasta la página
370
Título de las actas
Proc. Intl. Soc. Mag. Reson. Med. 20
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Ana Beatriz Solana Sanchez UPM
  • Autor: Juan Antonio Hernández-Tamames Universidad Rey Juan Carlos
  • Autor: Elena Molina Universidad Rey Juan Carlos
  • Autor: Francisco del Pozo Guerrero UPM
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Centro de tecnología Biomédica CTB
  • Departamento: Tecnología Fotónica y Bioingeniería