Go and no-go P3 with rare and frequent stimuli in oddball Tasks: A study comparing key-pressing with counting

Rolf Verleger*, Nils Grauhan, Kamila Śmigasiewicz

*Corresponding author for this work
2 Citations (Scopus)


The P3 component of event-related potentials (ERPs) is large at posterior scalp sites with rare go stimuli (go-P3) and at anterior sites with rare no-go stimuli (no-go P3). Most hypotheses on P3, including our S-R link reactivation notion, imply that these characteristics are independent of specific response modes. This assumption was here investigated by comparing ERPs between key-pressing and covert counting responses in oddball tasks that required responses to either frequent or rare stimuli. Replicating previous results, topographic differences between parietal rare go-P3 and fronto-central rare no-go P3 were much reduced with counting compared to key-press responses. Besides, while go-P3 was generally more positive than no-go P3 in the key-press tasks (except for fronto-central no-go P3 with rare stimuli) the reverse was true in the counting tasks. Thus, the characteristic posterior and fronto-central go and no-go topographies appear to be specific to hand movements. Moreover, P3s evoked in counting tasks might not simply be P3 proper, uncontaminated by movement-related potentials, but rather the go/no-go logic might differ between counting and key-pressing, with the oddball effects being affected by specific processes implemented for these particular response modes.

Original languageEnglish
JournalInternational Journal of Psychophysiology
Pages (from-to)128-136
Number of pages9
Publication statusPublished - 01.12.2016

Research Areas and Centers

  • Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)


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