Retinotopic mapping of visual event-related potentials
Entity
UAM. Departamento de Psicología Biológica y de la SaludPublisher
ElsevierDate
2016-05-25Citation
10.1016/j.biopsycho.2016.05.009
Biological Psychology 118 (2016): 114-125
ISSN
0301-0511 (print); 1873-6246 (online)DOI
10.1016/j.biopsycho.2016.05.009Funded by
This work was supported by the Spanish Ministry of Science and Innovation/Economy and Competitiveness (MICINN/MINECO) (PSI2011-26314, PSI2012-34558 and PSI2014-54853-P)Project
Gobierno de España. PSI2011-26314; Gobierno de España. PSI2014-54853-P; Gobierno de España. PSI2012-34558Subjects
Beamforming; Event-related potential (ERP); Independent component analysis (ICA); Pattern-reversal; Retinotopic mapping; Source localization; Visual cortex; Visual evoked potential (VEP); PsicologíaRights
© 2016 Elsevier B.V. All rights reservedEsta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
Visual stimulation is frequently employed in electroencephalographic (EEG) research. However, despite its widespread use, no studies have thoroughly evaluated how the morphology ofthe visual event-related potentials (ERPs) varies according to the spatial location of stimuli. Hence, the purpose of this study was to perform a detailed retinotopic mapping of visual ERPs. We recorded EEG activity while participants were visually stimulated with 60 pattern-reversing checkerboards placed at different polar angles and
eccentricities. Our results show five pattern-reversal ERP components. C1 and C2 components inverted polarity between the upper and lower hemifields. P1 and N1 showed higher amplitudes and shorter latencies to stimuli located in the contralateral lower quadrant. In contrast, P2 amplitude was enhanced and its latency was reduced by stimuli presented in the periphery of the upper hemifield. The retinotopic maps presented here could serve as a guide for selecting optimal visuo-spatial locations in future ERP
studies
Files in this item
Google Scholar:Capilla, Almudena
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Melcón, María
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Kessel, Dominique
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Calderón, Rosbén
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Pazo-Álvarez, Laura
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Carretie Arangüena, Luis
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