Frontal and Posterior ERPs Related to Line Bisection.
The aim of this study was to investigate the dynamic nature of the cortical visuospatial attention processes during the line bisection test, which is sensitive to perceptual asymmetries. EEGs of 26 normal volunteers were recorded during the administration of a computerized line bisection test, which...
| Publicado en: | Perceptual & Motor Skills Vol. 105; no. 2; pp. 587 - 609 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
Ammons Scientific, Ltd.
October 2007
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=508002783&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 508002783 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00315125 PSK jtl: Perceptual & Motor Skills issn: 00315125 maglogo: N pubinfo: dt: October 2007 vid: 105 iid: 2 pid: 726 pub: Ammons Scientific, Ltd. artinfo: ui: 508002783 10.2466/PMS.105.6.587-608 ppf: 587 ppct: 22 formats: tig: atl: Frontal and Posterior ERPs Related to Line Bisection. aug: au: Çiçek, Methehan Nalçaci, Erhan Kalaycioğlu, Canan su: Attention Visual perception Electroencephalography Brain function localization sug: subj: Attention Visual perception Electroencephalography Brain function localization ab: The aim of this study was to investigate the dynamic nature of the cortical visuospatial attention processes during the line bisection test, which is sensitive to perceptual asymmetries. EEGs of 26 normal volunteers were recorded during the administration of a computerized line bisection test, which requires participants mark the midline of lines using a mouse. Two event-related potentials subsequent and time locked to the line presentations, namely, P300 and a positive slow wave, were obtained. Findings suggested that both potentials were related to the test performance, and the right hemisphere was more active. Analysis suggested a right parietotemporal and superior parietal locus for the P300 and right prefrontal activity for the positive slow wave. A dynamic asymmetrical activity was identified, such that after primary visual perception, spatial processing is then initiated in the right parietotemporal cortex and then proceeds to the right prefrontal cortex. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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