RT Journal Article T1 Vertical asymmetries and inhibition of return: Effects of spatial and non-spatial cueing on behavior and visual ERPs A1 Gutiérrez Domínguez, Francisco Javier A1 Pazo Álvarez, Paula A1 Doallo Pesado, Sonia A1 Fuentes, Luis J. A1 Amenedo Losada, María Elena A1 Lorenzo López, Laura K1 Inhibition of return K1 Event related potentials K1 Visual field K1 Location K1 Color K1 Behavior AB Themechanisms underlying inhibition of return (IOR) are still under debate. Besides the probable implication ofseveral processes in its generation, a reason for this uncertainty may be related to experimental factors affectingthe presence, time course, and magnitude of IOR. Two of them may be related to the arrangement of the stimuliin the visual field that could cause possible interactions between IOR and response conflict effects (horizontalarrangements) or between IOR and perceptual asymmetries (vertical arrangement). The purpose of the presentstudywas to explore location and color cueing effects with a vertical arrangement of stimuli, free of S–R compatibilityeffects. To examine this possibility, a cue-back task with stimuli in the vertical meridian was employed.Targets could randomly and equiprobably appear at cued or uncued locations, or with cued or uncued color.These cueing effects were analyzed on behavior and ERPs separately for upper and lower visual fields (UVFand LVF). Under location cueing, behavioral responses were slower (spatial IOR) in both hemifields. In theERPs, N1 reductions were observed in both visual fields although with different modulations in their latencyand scalp distribution. In the P3 rising beginning, posterior negative deflections in the LVF (Nd) and anteriorpositive deflections (Pd) in the UVF were observed. Under color cueing, P3 amplitude was reduced in the UVFaccompanied by no behavioral effects. These results suggest that different patterns of brain activation can beobtained in upper and lower visual fields under spatial- and non-spatial cueing conditions. PB Elsevier SN 0167-8760 YR 2014 FD 2014 LK http://hdl.handle.net/10347/23216 UL http://hdl.handle.net/10347/23216 LA eng NO Gutiérrez-Domínguez, F-J; Pazo-Álvarez, P; Doallo, S; Fuentes, LJ; Lorenzo-López, L; Amenedo, E.(2014).Vertical asymmetries and inhibition of return: Effects of spatial and Non-spatial cueing on behavior and visual ERPs.International Journal of Psychophysiology, 91, 123-131. doi: 10.1016/j.ijpsycho.2013.12.004 NO This study was supported by grants from the Spanish MICINN (PSI2010-21427) and Xunta de Galicia (10PXIB211220PR). S.D. was supported by an Isidro Parga Pondal contract (Xunta de Galicia, Spain) DS Minerva RD 22 abr 2026