Article (Scientific journals)
Shifts of spatial attention cued by irrelevant numbers: Electrophysiological evidence from a target discrimination task
Schuller, Anne-Marie; Hoffmann, Danielle; Goffaux, Valérie et al.
2014In Journal of Cognitive Psychology
Peer reviewed
 

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Keywords :
Embodiment; ERPs; Numerical cognition; Visuo-spatial attention
Abstract :
[en] Fischer et al. demonstrated that a centrally presented number can shift attention to the left/right when its magnitude is small/large. Two electrophysiological studies described these attentional effects as eventrelated potentials (ERPs) at centro-parietal sites. Since both studies used target detection tasks, it remains currently unknown whether similar results would be obtained with a discrimination task. We used ERPs to test whether digit cues also induce attention shifts when participants perform a feature discrimination task on targets. ERPs were recorded whereas subjects discriminated the colour of lateral targets that were preceded by a central non-predictive digit. Analysis of cue-locked controlateral vs. ipsilateral ERP activity showed the emergence of early preparatory attention-directing components in parietal and frontal regions. Moreover, target-locked P1 components at occipito-parietal sites were significantly modulated by digit magnitude-target side congruency. These results demonstrate that irrelevant digit cues also bias sensory processing when embedded in a feature-discrimination task.
Disciplines :
Neurosciences & behavior
Author, co-author :
Schuller, Anne-Marie ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Education, Culture, Cognition and Society (ECCS)
Hoffmann, Danielle ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Luxembourg Centre for Educational Testing (LUCET)
Goffaux, Valérie
Schiltz, Christine ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Education, Culture, Cognition and Society (ECCS)
Language :
English
Title :
Shifts of spatial attention cued by irrelevant numbers: Electrophysiological evidence from a target discrimination task
Publication date :
12 August 2014
Journal title :
Journal of Cognitive Psychology
Publisher :
Routledge
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 07 November 2014

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