Advanced search
1 file | 2.66 MB

Representation of steady-state visual evoked potentials elicited by luminance flicker in human occipital cortex: An electrocorticography study

(2018) NEUROIMAGE. 175. p.315-326
Author
Organization
Abstract
Despite the widespread use of steady-state visual evoked potentials (SSVEPs) elicited by luminance flicker in clinical and research settings, their spatial and temporal representation in the occipital cortex largely remain elusive. We performed intracranial-EEG recordings in response to targets flickering at frequencies from 11 to 15 Hz using a subdural electrode grid covering the entire right occipital cortex of a human subject, and we were able to consistently locate the gazed stimulus frequency at the posterior side of the primary visual cortex (V1). Peripheral flickering, undetectable in scalp-EEG, elicited activations in the interhemispheric fissure at locations consistent with retinotopic maps. Both foveal and peripheral activations spatially coincided with activations in the high gamma band. We detected localized alpha synchronization at the lateral edge of V2 during stimulation and transient post-stimulation theta band activations at the posterior part of the occipital cortex. Scalp-EEG exhibited only a minor occipital post-stimulation theta activation, but a strong transient frontal activation.
Keywords
BRAIN-COMPUTER INTERFACES, SELECTIVE ATTENTION, THETA OSCILLATIONS, CORTICAL OSCILLATIONS, RESONANCE PHENOMENA, MODULATED LIGHT, WORKING-MEMORY, FRONTAL-CORTEX, FREQUENCY, EEG, SSVEP, ECoG, Alpha, Theta, Gamma, Fundamental, Harmonic

Downloads

  • Wittevrongel B - 2018.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 2.66 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Wittevrongel, Benjamin, Elvira Khachatryan, Mansoureh Fahimi Hnazaee, Evelien Carrette, Leen De Taeye, Alfred Meurs, Paul Boon, Dirk Van Roost, and Marc M. Van Hulle. 2018. “Representation of Steady-state Visual Evoked Potentials Elicited by Luminance Flicker in Human Occipital Cortex: An Electrocorticography Study.” Neuroimage 175: 315–326.
APA
Wittevrongel, B., Khachatryan, E., Hnazaee, M. F., Carrette, E., De Taeye, L., Meurs, A., Boon, P., et al. (2018). Representation of steady-state visual evoked potentials elicited by luminance flicker in human occipital cortex: An electrocorticography study. NEUROIMAGE, 175, 315–326.
Vancouver
1.
Wittevrongel B, Khachatryan E, Hnazaee MF, Carrette E, De Taeye L, Meurs A, et al. Representation of steady-state visual evoked potentials elicited by luminance flicker in human occipital cortex: An electrocorticography study. NEUROIMAGE. San diego: Academic Press Inc Elsevier Science; 2018;175:315–26.
MLA
Wittevrongel, Benjamin, Elvira Khachatryan, Mansoureh Fahimi Hnazaee, et al. “Representation of Steady-state Visual Evoked Potentials Elicited by Luminance Flicker in Human Occipital Cortex: An Electrocorticography Study.” NEUROIMAGE 175 (2018): 315–326. Print.
@article{8574028,
  abstract     = {Despite the widespread use of steady-state visual evoked potentials (SSVEPs) elicited by luminance flicker in clinical and research settings, their spatial and temporal representation in the occipital cortex largely remain elusive. We performed intracranial-EEG recordings in response to targets flickering at frequencies from 11 to 15 Hz using a subdural electrode grid covering the entire right occipital cortex of a human subject, and we were able to consistently locate the gazed stimulus frequency at the posterior side of the primary visual cortex (V1). Peripheral flickering, undetectable in scalp-EEG, elicited activations in the interhemispheric fissure at locations consistent with retinotopic maps. Both foveal and peripheral activations spatially coincided with activations in the high gamma band. We detected localized alpha synchronization at the lateral edge of V2 during stimulation and transient post-stimulation theta band activations at the posterior part of the occipital cortex. Scalp-EEG exhibited only a minor occipital post-stimulation theta activation, but a strong transient frontal activation.},
  author       = {Wittevrongel, Benjamin and Khachatryan, Elvira and Hnazaee, Mansoureh Fahimi and Carrette, Evelien and De Taeye, Leen and Meurs, Alfred and Boon, Paul and Van Roost, Dirk and Van Hulle, Marc M.},
  issn         = {1053-8119},
  journal      = {NEUROIMAGE},
  keyword      = {BRAIN-COMPUTER INTERFACES,SELECTIVE ATTENTION,THETA OSCILLATIONS,CORTICAL OSCILLATIONS,RESONANCE PHENOMENA,MODULATED LIGHT,WORKING-MEMORY,FRONTAL-CORTEX,FREQUENCY,EEG,SSVEP,ECoG,Alpha,Theta,Gamma,Fundamental,Harmonic},
  language     = {eng},
  pages        = {315--326},
  publisher    = {Academic Press Inc Elsevier Science},
  title        = {Representation of steady-state visual evoked potentials elicited by luminance flicker in human occipital cortex: An electrocorticography study},
  url          = {http://dx.doi.org/10.1016/j.neuroimage.2018.04.006},
  volume       = {175},
  year         = {2018},
}

Altmetric
View in Altmetric
Web of Science
Times cited: