RT Journal Article
T1 Modulations of the visual N1 component of event-related potentials by central and peripheral cueing
A1 Doallo Pesado, Sonia
A1 Lorenzo López, Laura
A1 Vizoso Gómez, Carmen
A1 Rodríguez Holguín, Socorro
A1 Amenedo Losada, María Elena
A1 Bará Viñas, Salvador
A1 Cadaveira Mahía, Fernando
K1 Visuospatial attention
K1 Central cues
K1 Peripheral cues
K1 N1
K1 Event-related potentials
K1 ERPs
K1 Atención visoespacial
K1 Chaves centrais
K1 Chaves periféricas
K1 Potenciais evocados
AB Objective: The aim of this study is to investigate the effects of the central and peripheral cueing on N1 component of the event-related potentials (ERPs) and the time course of these effects. Methods: ERPs were recorded while participants performed a discrimination task on the height of target bars, which were presented after informative-central, informative-peripheral or uninformative-peripheral cues with stimulus onset asynchronies (SOAs) of 100, 300, 500 or 700 ms. Results: Peripheral cues (informative and uninformative) elicited stronger effects of cue validity on N1 300 ms after cue onset, whereas central cues led to a more sustained validity effect on N1, with later stronger effects, at 500 ms SOA. Conclusions: The present data showed that central and peripheral cues affected to the level of processing reflected by the N1 component, but there were differences in the time course of these effects. Attentional orienting in response to central cueing resulted in a sustained validity effect on N1, relative to the more transitory activation of the process reflected by the N1 validity effect in this peripheral cueing task. Significance: This study provides a detailed within-subject analysis of the time course of the effects of central and peripheral cueing on N1.
PB Elsevier
SN 1388-2457
YR 2005
FD 2005
LK http://hdl.handle.net/10347/17894
UL http://hdl.handle.net/10347/17894
LA eng
NO Doallo S; Lorenzo-López L; Vizoso C; Rodríguez Holguín S; Amenedo E; Bará S; Cadaveira F (2005). Modulations of the visual N1 component of event-related potentials by central and peripheral cueing. Clinical Neurophysiology, 116, 807-820
NO This study was supported by Spain’s Ministerio de Ciencia y Tecnología (grant BSO2000-0041) and by the Galician Secretaría Xeral de I + D (PGIDT00PSI211102PR, PGIDT01PXI21101PN).
DS Minerva
RD 27 abr 2026