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The breakdown of the Simon effect in cross-modal contexts: EEG evidence

  • Authors
  • Castro, Leonor; Soto Faraco, Salvador; Morís Fernández, Luis; Ruzzoli, Manuela
  • UPF authors
  • RUZZOLI, MANUELA; MORIS FERNANDEZ, LUIS; SOTO FARACO, SALVADOR;
  • Type
  • Articles de recerca
  • Journal títle
  • The European Journal of Neuroscience
  • Publication year
  • 2018
  • Volume
  • 47
  • Number
  • 7
  • Pages
  • 832-844
  • ISSN
  • 0953-816X
  • Publication State
  • Publicat
  • Abstract
  • In everyday life we often must coordinate information across spatial locations and different senses for action. It is well known, for example, that reactions are faster when an imperative stimulus and its required response are congruent than when they are not, even if stimulus location itself is completely irrelevant for the task (the so-called Simon effect). However, because these effects have been frequently investigated in single modality scenarios, the consequences of spatial congruence when more than one sensory modality is at play are less well known. Interestingly, at a behavioural level, the visual Simon effect vanishes in mixed (visual and tactile) modality scenarios, suggesting that irrelevant spatial information ceases to exert influence on vision. In order to shed some light on this surprising result, here we address the expression of irrelevant spatial information in EEG markers typical of the visual Simon effect (P300, theta power modulation, LRP) in mixed modality contexts. Our results show no evidence for the visual spatial information to affect performance at behavioural and neurophysiological levels. The absence of evidence of the neural markers of visual S-R conflict in the mixed modality scenario implies that some aspects of spatial representations that are strongly expressed in single modality scenarios might be bypassed.
  • Complete citation
  • Castro, Leonor; Soto Faraco, Salvador; Morís Fernández, Luis; Ruzzoli, Manuela. The breakdown of the Simon effect in cross-modal contexts: EEG evidence. The European Journal of Neuroscience 2018; 47(7): 832-844.
Bibliometric indicators
  • 5 times cited Scopus
  • 5 times cited WOS
  • Índex Scimago de 1.501(2018)