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. 2014 Dec 12;3(1):35.
doi: 10.1186/2047-217X-3-35. eCollection 2014.

Event-related potential datasets based on a three-stimulus paradigm

Lukas Vareka  1 , Petr Bruha  1 , Roman Moucek  1
Affiliations

Event-related potential datasets based on a three-stimulus paradigm

Lukas Vareka et al. Gigascience. .

Abstract

Background: The event-related potentials technique is widely used in cognitive neuroscience research. The P300 waveform has been explored in many research articles because of its wide applications, such as lie detection or brain-computer interfaces (BCI). However, very few datasets are publicly available. Therefore, most researchers use only their private datasets for their analysis. This leads to minimally comparable results, particularly in brain-computer research interfaces. Here we present electroencephalography/event-related potentials (EEG/ERP) data. The data were obtained from 20 healthy subjects and was acquired using an odd-ball hardware stimulator. The visual stimulation was based on a three-stimulus paradigm and included target, non-target and distracter stimuli. The data and collected metadata are shared in the EEG/ERP Portal.

Findings: The paper also describes the process and validation results of the presented data. The data were validated using two different methods. The first method evaluated the data by measuring the percentage of artifacts. The second method tested if the expectation of the experimental results was fulfilled (i.e., if the target trials contained the P300 component). The validation proved that most datasets were suitable for subsequent analysis.

Conclusions: The presented datasets together with their metadata provide researchers with an opportunity to study the P300 component from different perspectives. Furthermore, they can be used for BCI research.

Keywords: Event-related potentials; LED; P300; Three-stimulus paradigm; Visual stimulation.

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Figures

Figure 1
Figure 1
Stimulator with flashing diodes.
Figure 2
Figure 2
The locations of the electrodes.
Figure 3
Figure 3
EEG/ERP experiments — results of validation. The percentage of eye blinking artifacts in the data and the error rate of the P300 classifier are shown.
Figure 4
Figure 4
Grand averages (Pz electrode) andscalp maps for each stimulus type. 1808 target, 11802 non-target, and 466 distractor trials were used for averaging.
See this image and copyright information in PMC

Dataset use reported in

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