Testing the S-R link hypothesis of P3b: The oddball effect on S1-evoked P3 gets reduced by increased task relevance of S2

Biological Psychology
Rolf VerlegerKamila Śmigasiewicz

Abstract

We had previously reported that the oddball effect on the P3b EEG potential evoked by infrequent vs. frequent S1 presented in a sequence of two stimuli, S1 and S2, gets reduced in a "combination task". In this task, responses were determined by the combinations of S1 and S2 rather than by S1 only. We had attributed this reduction of the oddball effect to increased task difficulty. The present study investigated possible reasons for this reduction of S1-evoked P3b in more detail, by making the combination task easier in several respects: allowing for forming associations from S1 to responses (Experiment 1), reducing the complexity of stimulus-response (S-R) mappings (Experiment 2), and decreasing S2 relevance in defining responses (Experiment 3). The results showed that only S2 relevance affected the oddball effect on S1-evoked P3b. Namely, when S2 attained some relevance by inducing a go/no-go decision for S1-defined responses, the oddball effect on S1-evoked P3b was intermediate between the large effect in the simple oddball task and the small effect in the combination task. The results may be explained in terms of the S-R link hypothesis of P3b which interprets P3b as reflecting reactivation of well-established S-R links.

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Citations

Apr 18, 2015·Psychophysiology·Rolf VerlegerKamila Śmigasiewicz
Aug 8, 2015·Biological Psychology·Dimitrios Kourtis, Guy Vingerhoets
Aug 12, 2015·Brain and Cognition·Benjamin Ernst, Marco Steinhauser
Aug 28, 2016·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Geir OgrimJan Ferenc Brunner
Aug 16, 2016·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ida Emilia AasenJan Ferenc Brunner
Sep 7, 2016·Psychophysiology·Rolf VerlegerKamila Śmigasiewicz
Oct 11, 2016·NeuroImage·Moritz MückschelChristian Beste
Oct 30, 2016·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Gáspár LukácsGábor Csifcsák
Nov 14, 2016·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Ann-Kathrin StockChristian Beste
Nov 21, 2018·Psychophysiology·Jack S FogartyGenevieve Z Steiner
Dec 19, 2018·Addiction Biology·Witold X ChmielewskiAnn-Kathrin Stock
Apr 11, 2019·Applied Psychophysiology and Biofeedback·Gáspár LukácsUlrich Ansorge
Jan 13, 2018·Scientific Reports·Álvaro Darriba, Florian Waszak
Feb 16, 2017·Brain Structure & Function·Ann-Kathrin StockChristian Beste
Jul 22, 2018·Experimental Brain Research·Rolf VerlegerKamila Śmigasiewicz
Nov 22, 2018·Frontiers in Human Neuroscience·Nicolas ZinkChristian Beste
Jul 31, 2019·Scientific Reports·Patrick Mussel, Johannes Hewig
Jan 3, 2018·PloS One·Mateusz WoźniakGünther Knoblich
Jun 27, 2019·Memory & Cognition·Andrea KóborDezso Nemeth
Feb 6, 2020·Psychophysiology·Jack S FogartyGenevieve Z Steiner
Feb 18, 2021·Social Cognitive and Affective Neuroscience·Anna ŻochowskaAnna Nowicka
Oct 8, 2021·Scientific Reports·Álvaro DarribaFlorian Waszak

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