Effects of spatial selective attention on the steady-state visual evoked potential in the 20-28 Hz range Article

Müller, MM, Picton, TW, Valdes-Sosa, P et al. (1998). Effects of spatial selective attention on the steady-state visual evoked potential in the 20-28 Hz range . 6(4), 249-261. 10.1016/S0926-6410(97)00036-0

cited authors

  • Müller, MM; Picton, TW; Valdes-Sosa, P; Riera, J; Teder-Sälejärvi, WA; Hillyard, SA

fiu authors

abstract

  • Steady-state visual evoked potentials (SSVEPs) were recorded from the scalp of subjects who attended to a flickering LED display in one visual field while ignoring a similar display (flickering at a different frequency) in the opposite visual field. The flicker frequencies were 20.8 Hz in the left-field display and 27.8 Hz in the right-field display. The SSVEP to the flicker in either field was enhanced in amplitude when attention was directed to its location. The scalp distribution of this SSVEP enhancement was narrowly focused over the posterior scalp contralateral to the visual field of stimulation. A source analysis using Variable Resolution Electromagnetic Tomography (VARETA) indicated that the source current densities for the SSVEP attention effect had a focal origin in the contralateral parieto-occipital cortex.

publication date

  • April 1, 1998

Digital Object Identifier (DOI)

start page

  • 249

end page

  • 261

volume

  • 6

issue

  • 4