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Separable processes before, during, and after the N400 elicited by previously inferred and new information: evidence from time-frequency decompositions
- Source :
- Brain research. 1492
- Publication Year :
- 2012
-
Abstract
- Successful comprehension during reading often requires inferring information not explicitly presented. This information is readily accessible when subsequently encountered, and a neural correlate of this is an attenuation of the N400 event-related potential (ERP). We used ERPs and time-frequency (TF) analysis to investigate neural correlates of processing inferred information after a causal coherence inference had been generated during text comprehension. Participants read short texts, some of which promoted inference generation. After each text, they performed lexical decisions to target words that were unrelated or inference-related to the preceding text. Consistent with previous findings, inference-related words elicited an attenuated N400 relative to unrelated words. TF analyses revealed unique contributions to the N400 from activity occurring at 1-6 Hz (theta) and 0-2 Hz (delta), supporting the view that multiple, sequential processes underlie the N400.
- Subjects :
- Adult
Male
Adolescent
media_common.quotation_subject
Inference
computer.software_genre
Article
Young Adult
Text mining
Event-related potential
Reading (process)
Humans
Molecular Biology
Evoked Potentials
media_common
Communication
Neural correlates of consciousness
business.industry
General Neuroscience
Brain
Electroencephalography
Coherence (statistics)
N400
Comprehension
Reading
Female
Neurology (clinical)
Artificial intelligence
business
Psychology
computer
Natural language processing
Developmental Biology
Subjects
Details
- ISSN :
- 18726240
- Volume :
- 1492
- Database :
- OpenAIRE
- Journal :
- Brain research
- Accession number :
- edsair.doi.dedup.....f27dfb1d1181c85ff41d2dc028b65067