6533b854fe1ef96bd12ae15b

RESEARCH PRODUCT

The P600-as-P3 hypothesis revisited: single-trial analyses reveal that the late EEG positivity following linguistically deviant material is reaction time aligned.

Ina Bornkessel-schlesewskyIna Bornkessel-schlesewskyMatthias SchlesewskyJona SassenhagenJona Sassenhagen

subject

AdultMaleLinguistics and LanguagereorientingCognitive NeuroscienceSentence processingExperimental and Cognitive PsychologyStimulus (physiology)ElectroencephalographyLanguage and LinguisticsSentence processingReorientingDevelopmental psychologySpeech and HearingJudgmentNorepinephrineYoung AdultmedicineReaction TimeP600HumansN400AttentionSyntaxsemanticssyntaxEvoked PotentialsP600single-trial analysismedicine.diagnostic_testButton pressSingle-trial analysisP3Electroencephalographysentence processingNeurophysiologyN400attentionSemanticsLocus CoeruleusSingle trialPsychologyComprehensionCognitive psychology

description

The P600, a late positive ERP component following linguistically deviant stimuli, is commonly seen as indexing structural, high-level processes, e.g. of linguistic (re)analysis. It has also been identified with the P3 (P600-as-P3 hypothesis), which is thought to reflect a systemic neuromodulator release facilitating behavioural shifts and is usually response time aligned. We investigated single-trial alignment of the P600 to response, a critical prediction of the P600-as-P3 hypothesis. Participants heard sentences containing morphosyntactic and semantic violations and responded via a button press. The elicited P600 was perfectly response aligned, while an N400 following semantic deviations was stimulus aligned. This is, to our knowledge, the first single-trial analysis of language processing data using within-sentence behavioural responses as temporal covariates. Results support the P600-as-P3 perspective and thus constitute a step towards a neurophysiological grounding of language-related ERPs. Refereed/Peer-reviewed

yearjournalcountryeditionlanguage
2014-10-01Brain and language
10.1016/j.bandl.2014.07.010https://pubmed.ncbi.nlm.nih.gov/25151545