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Reaction-time binning: A simple method for increasing the resolving power of ERP averages

Poli, Riccardo and Cinel, Caterina and Citi, Luca and Sepulveda, Francisco (2010) 'Reaction-time binning: A simple method for increasing the resolving power of ERP averages.' Psychophysiology, 47 (3). pp. 467-485. ISSN 0048-5772

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Stimulus-locked, response-locked, and ERP-locked averaging are effective methods for reducing artifacts in ERP analysis. However, they suffer from a magnifying-glass effect: they increase the resolution of specific ERPs at the cost of blurring other ERPs. Here we propose an extremely simple technique - binning trials based on response times and then averaging - which can significantly alleviate the problems of other averaging methods. We have empirically evaluated the technique in an experiment where the task requires detecting a target in the presence of distractors. We have also studied the signal-to-noise ratio and the resolving power of averages with and without binning. Results indicate that the method produces clearer representations of ERPs than either stimulus-locked and response-locked averaging, revealing finer details of ERPs and helping in the evaluation of the amplitude and latency of ERP waves. The method is applicable to within-subject and between-subject averages. © 2010 Society for Psychophysiological Research.

Item Type: Article
Uncontrolled Keywords: ERP averaging; ERP signal-to-noise ratio; High-resolution averages; Reaction-time distributions; Variable-latency ERPs; Grand averages
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 11 Feb 2013 14:01
Last Modified: 23 Sep 2022 18:25

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