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  Dissociation of formal and temporal predictability in early auditory evoked potentials

Schwartze, M., Farrugia, N., & Kotz, S. A. (2013). Dissociation of formal and temporal predictability in early auditory evoked potentials. Neuropsychologia, 51(2), 320-325. doi:10.1016/j.neuropsychologia.2012.09.037.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-ED06-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-8CBD-B
Genre: Journal Article

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Schwartze_2012_Dissociation.pdf (Publisher version), 541KB
 
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 Creators:
Schwartze, Michael1, Author              
Farrugia, Nicolas1, 2, Author              
Kotz, Sonja A.1, Author              
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2Department of Cognitive Psychology, University of Finance and Management, Warsaw, Poland, ou_persistent22              

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Free keywords: ERP; Prediction; Attention; Suppression; Formal structure; Temporal structure
 Abstract: Perceived regularity among events in the environment allows predictions regarding the “when” and the “what” dimensions of future events. In this context, one crucial question concerns the impact and the potentially optimizing effect, of regular temporal structure on the processing of “what”, or formal, information. The current study addresses this issue by investigating whether temporal and formal structure interact during early stages of sensory processing, and by relating the respective findings to the concept of a predictive bias in brain function. Analyses were performed on two components of the auditory event-related-potential of the electroencephalogram, namely the P50 and the N100. Oddball sequences consisting of frequent standard and infrequent deviant sinusoidal tones were presented with either regular or irregular temporal structure in pre-attentive and attentive experimental settings (Schwartze, Rothermich, Schmidt-Kassow, & Kotz, 2011). Temporal regularity effects on pre-attentive and attentive processing of deviance. Biological Psychology, 87, 146–151). The results confirm that the P50 and the N100 amplitudes reliably encode formal and temporal predictability. Similar patterns of results obtained with pre-attentive and attentive task instructions, as well as the absence of a significant interaction of formal and temporal structure suggest that the P50 response may be interpreted as an automatic marker of predictability, whereas the N100 may represent a more complex marker, in which formal and temporal structure start interacting as a function of attention.

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Language(s): eng - English
 Dates: 2012-09-182012-09-272013-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.neuropsychologia.2012.09.037
PMID: 23022431
Other: Epub 2012
 Degree: -

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Title: Neuropsychologia
Source Genre: Journal
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Publ. Info: Oxford : Pergamon
Pages: - Volume / Issue: 51 (2) Sequence Number: - Start / End Page: 320 - 325 Identifier: ISSN: 0028-3932
CoNE: /journals/resource/954925428258