Effects of awareness and task relevance on neurocomputational models of mismatch negativity generation

Detection of regularities and their violations in sensory input is key to perception. Violations are indexed by an early EEG component called the mismatch negativity (MMN) – even if participants are distracted or unaware of the stimuli. On a mechanistic level, two dominant models have been suggested...

Verfasser: Schloßmacher, Insa
Lucka, Felix
Peters, Antje
Bruchmann, Maximilian
Straube, Thomas
FB/Einrichtung:FB 05: Medizinische Fakultät
Dokumenttypen:Artikel
Medientypen:Text
Erscheinungsdatum:2022
Publikation in MIAMI:27.09.2022
Datum der letzten Änderung:27.09.2022
Angaben zur Ausgabe:[Electronic ed.]
Quelle:NeuroImage 262 (2022) 119530, 1-10
Schlagwörter:Adaptation; Computational modeling; Inattentional blindness; MMN; Prediction
Fachgebiet (DDC):610: Medizin und Gesundheit
Lizenz:CC BY-NC-ND 4.0
Sprache:English
Förderung:Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Format:PDF-Dokument
URN:urn:nbn:de:hbz:6-62069489836
Weitere Identifikatoren:DOI: 10.17879/62069493022
Permalink:https://nbn-resolving.de/urn:nbn:de:hbz:6-62069489836
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  • Onlinezugriff:10.1016_j.neuroimage.2022.119530.pdf
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    520 3 |a Detection of regularities and their violations in sensory input is key to perception. Violations are indexed by an early EEG component called the mismatch negativity (MMN) – even if participants are distracted or unaware of the stimuli. On a mechanistic level, two dominant models have been suggested to contribute to the MMN: adaptation and prediction. Whether and how context conditions, such as awareness and task relevance, modulate the mechanisms of MMN generation is unknown. We conducted an EEG study disentangling influences of task relevance and awareness on the visual MMN. Then, we estimated different computational models for the generation of single-trial amplitudes in the MMN time window. Amplitudes were best explained by a prediction error model when stimuli were task-relevant but by an adaptation model when task-irrelevant and unaware. Thus, mismatch generation does not rely on one predominant mechanism but mechanisms vary with task relevance of stimuli. 
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