Frequency-specific coupling between trial-to-trial fluctuations of neural responses and response-time variability

  • We assessed intra-individual variability of response times (RT) and single-trial P3 amplitudes following targets in healthy adults during a Flanker/NO-GO task. RT variability and variability of the neural responses coupled at the faster frequencies examined (0.07-0.17 Hz) at Pz, the target-P3 maxima, despite non-significant associations for overall variability (standard deviation, SD). Frequency-specific patterns of variability in the single-trial P3 may help to understand the neurophysiology of RT variability and its explanatory models of attention allocation deficits beyond intra-individual variability summary indices such as SD.

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Author:Nicoletta Adamo, Sarah Baumeister, Sarah Hohmann, Isabella Wolf, Nathalie Holz, Regina Boecker, Manfred Laucht, Tobias Banaschewski, Daniel Brandeis
DOI:https://doi.org/10.1007/s00702-015-1382-8
ISSN:0300-9564 (print)
ISSN:1435-1463 (online)
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=25724293
Parent Title (English):Journal of neural transmission
Publisher:Springer
Place of publication:Wien
Document Type:Article
Language:English
Year of first Publication:2015
Year of Completion:2015
Release Date:2017/03/27
Tag:Attention deficit; Cognitive control; Event-related potential; Intra-individual response-time variability
Volume:122
Issue:8
Pagenumber:6
First Page:1197
Last Page:1202
Organizational units:Humanwissenschaftliche Fakultät / Institut für Psychologie
Peer Review:Referiert