Experimental Brain Research

, Volume 208, Issue 4, pp 595–605 | Cite as

Stroop matching task: role of feature selection and temporal modulation

  • Isabel A. David
  • Eliane Volchan
  • Jaime Vila
  • Andreas Keil
  • Letícia de Oliveira
  • Aydamari J. P. Faria-Júnior
  • Pandelis Perakakis
  • Elisa C. Dias
  • Izabela Mocaiber
  • Mirtes G. Pereira
  • Walter Machado-Pinheiro
Research Article


We conducted an event-related potential (ERP) study to investigate the electrocortical dynamics of attentional feature-based processing in the Stroop matching task. Participants in the study (n = 37) compared the ink color of a colored word with the meaning of a color–word in white ink. The two task stimuli were presented simultaneously or with SOAs (Stimulus Onset Asynchrony) of 400 and 1,200 ms. The Stroop matching effect was maximal during SOA-0, was reduced at SOA-400, and was inverted at SOA-1200. We focused the ERP analysis on the N1 component. Paralleling the behavioral results, the N1 amplitude was greater for congruent stimuli than incongruent stimuli during SOA-0. This difference was attenuated at SOA-400, and at SOA-1200, an inverse pattern was observed. The results provide evidence that early selection processing participated in the Stroop matching task phenomenon and also suggest that the temporal modulation of early attention is a function of task characteristics such as SOA.


Stroop ERP Feature attention Matching task 


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Isabel A. David
    • 1
  • Eliane Volchan
    • 3
  • Jaime Vila
    • 4
  • Andreas Keil
    • 5
  • Letícia de Oliveira
    • 1
  • Aydamari J. P. Faria-Júnior
    • 6
  • Pandelis Perakakis
    • 4
  • Elisa C. Dias
    • 7
  • Izabela Mocaiber
    • 2
  • Mirtes G. Pereira
    • 1
  • Walter Machado-Pinheiro
    • 2
  1. 1.Departamento de Fisiologia e Farmacologia, Instituto BiomédicoUniversidade Federal FluminenseSão Domingos, NiteróiBrazil
  2. 2.Departamento InterdisciplinarUniversidade Federal FluminenseRio das OstrasBrazil
  3. 3.Programa de Neurobiologia, Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
  4. 4.Facultad de Psicología, Departamento de Personalidad, Evaluación y Tratamiento PsicológicoUniversidad de GranadaGranadaSpain
  5. 5.Department of Psychology, NIMH Center for the Study of Emotion and AttentionUniversity of FloridaGainesvilleUS
  6. 6.Departamento de PesquisaUniversidade Federal do AmapáMacapáBrazil
  7. 7.Nathan S. Kline Institute for Psychiatric ResearchOrangeburgUS

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