RT Journal Article T1 Cognitive control activity is modulated by the magnitude of interference and pre-activation of monitoring mechanisms A1 Cespón, Jesús A1 Galdo Álvarez, Santiago A1 Díaz Fernández, Fernando K1 Attention K1 Cognitive control AB The Simon task is used to study interference from irrelevant spatial information. Interference is manifested by longer reaction times when the required response –based on non-spatial features- is spatially incompatible with stimulus position. Interference is greater when incompatible trials are preceded by compatible trials (compatible-incompatible sequence) than when they are preceded by incompatible trials (incompatible-incompatible sequence). However, the relationships between spatial attention, interference and cognitive control have not been investigated. In the present study, we distinguished three experimental conditions according to sequential effects: same mappings (SM, compatible-compatible/incompatible-incompatible sequences: low interference), opposite mappings (OM, compatible-incompatible/incompatible-compatible sequences: high interference) and unrelated mappings (UM, central-compatible/central-incompatible sequences: intermediate interference). The negativity central contralateral (N2cc, a correlate of prevention of spatial response tendencies) was larger in OM than in SM, indicating greater cognitive control for greater interference. Furthermore, N2cc was larger in UM than in SM/OM, indicating lower neural efficiency for suppressing spatial tendencies of the response after central trials. Attentional processes (negativity posterior contralateral) were also delayed in UM relative to SM/OM, suggesting attentional facilitation by similar sets of attentional shifts in successive trials. Overall, the present findings showed that cognitive control is modulated by the magnitude of interference and pre-activation of monitoring mechanisms PB Nature Publishing Group SN 2045-2322 YR 2016 FD 2016-12-20 LK http://hdl.handle.net/10347/15964 UL http://hdl.handle.net/10347/15964 LA eng NO Cespón, J., Galdo-Álvarez, S., & Díaz, F. (2016). Cognitive control activity is modulated by the magnitude of interference and pre-activation of monitoring mechanisms. Scientific Reports, 6(1). http://dx.doi.org/10.1038/srep39595 NO his study was funded by the Spanish Government (Ministerio de Economía y Competitividad: PSI2014-55316-C3-3-R), the Galician Government (Consellería de Cultura, Educación e Ordenación Universitaria, Axudas para a consolidación e Estruturación de unidades de investigación competitivas do SUG: GPC2014/047, with FEDER funds and by European Commission (Marie Skłodowska Curie Actions, Individual Fellowships: Grant Reference NIBSAD-655423) DS Minerva RD 22 abr 2026