When brain and behavior disagree: Tackling systematic label noise in EEG data with machine learning Conference Paper
| Authors: | Porbadnigk, A. K.; Görnitz, N.; Sannelli, C.; Binder, A.; Braun, M.; Kloft, M.; Müller, K. R. |
| Title: | When brain and behavior disagree: Tackling systematic label noise in EEG data with machine learning |
| Conference Title: | 2014 International Winter Workshop on Brain Computer Interface (BCI) |
| Abstract: | Conventionally, neuroscientific data is analyzed based on the behavioral response of the participant. This approach assumes that behavioral errors of participants are in line with the neural processing. However, this may not be the case, in particular in experiments with time pressure or studies investigating the threshold of perception. In these cases, the error distribution deviates from uniformity due to the heteroscedastic nature of the underlying experimental set-up. This problem of systematic and structured (non-uniform) label noise is ignored when analysis are based on behavioral data, as is being done typically. Thus, we run the risk to arrive at wrong conclusions in our analysis. This paper proposes a remedy to handle this crucial problem: we present a novel approach for a) measuring label noise and b) removing structured label noise. We show its usefulness for an EEG data set recorded during a standard d2 test for visual attention. © 2014 IEEE. |
| Keywords: | unsupervised learning; risk assessment; electroencephalography; neurophysiology; statistical tests; eeg; machine learning; brain computer interface; learning systems; behavioral response; applied cognitive neuroscience; label noise; behavioral data; cognitive neurosciences; error distributions; heteroscedastic; neural-processing; time pressures; visual attention |
| Journal Title | Proceedings of the 2014 International Winter Workshop on Brain Computer Interface (BCI) |
| Conference Dates: | 2014 Feb 17-19 |
| Conference Location: | Jeongsun-kun, South Korea |
| ISBN: | 9781479925896 |
| Publisher: | IEEE |
| Date Published: | 2014-01-01 |
| Start Page: | 6782561 |
| Language: | English |
| DOI: | 10.1109/iww-BCI.2014.6782561 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | Int. Winter Workshop Brain-Comput. Interface, BCI -- Conference code: 104739 -- Export Date: 2 June 2014 -- 17 February 2014 through 19 February 2014 -- Source: Scopus |
