RDK-IAPS paradigm EEG, target vs distractor

It has been suggested that the visual system samples attended information rhythmically. Does rhythmic sampling also apply to distracting information? How do attended information and distracting information compete temporally for neural representations? We recorded electroencephalography (EEG) from participants who detected instances of coherent motion in a random dot kinematogram (RDK; the target), overlayed on different categories (pleasant, neutral, and unpleasant) of affective images from the International Affective System (IAPS) (the distractor). The moving dots were flickered at 4.29 Hz whereas the IAPS pictures were flickered at 6 Hz. The time course of EEG spectral power at 4.29 Hz was taken to index the temporal dynamics of target processing. The spatial pattern of the EEG spectral power at 6 Hz was similarly extracted and subjected to a moving-window MVPA decoding analysis to index the temporal dynamics of processing pleasant, neutral, or unpleasant distractor pictures. We foun..., EEG data was recorded using a 32-channel MR-compatible EEG recording system (Brain Products, Germany). The system was synchronized to the internal clock of the scanner to facilitate the subsequent scanner noise removal. Thirty-one Ag/AgCl electrodes were located on the scalp according to the 10–20 system via an elastic cap. One additional electrode was located on the participant’s upper back to record the electrocardiogram (ECG). Electrode FCz was used as the reference during recording. Impedances were kept below 20kΩ for all scalp electrodes and below 50kΩ for the ECG electrode, as suggested by the manufacturer. EEG data was digitized at 16-bit resolution and sampled at 5kHz with a 0.1- 250 Hz (3dB-point) bandpass filter applied online (Butterworth, 18 dB/octave roll off). The digitized data was transferred to a laptop computer via a fiber-optic cable.
Artifact removal from electroencephalogram (EEG) data, specifically magnetic gradient and cardioballistic artifacts, was conducted usin..., # Title: RDK-IAPS paradigm EEG, target vs distractor

* **Author(s):** Changhao Xiong, Nathan Petro
* **Affiliation:** Department of Biomedical Engineering, University of Florida and Boys Town National Research Hospital
* **Contact Information:** [[e-mail]](mailto:[e-mail])
* **Access this dataset on Dryad:** [https://doi.org/10.5061/dryad.xd2547dw5](https://doi.org/10.5061/dryad.xd2547dw5)

### Dataset Summary

This dataset contains Electroencephalography (EEG) data recorded during a visual attention task. In the experiment, participants were required to process a central Random Dot Kinematogram (RDK) as the target, while ignoring a peripheral emotional image from the International Affective Picture System (IAPS) serving as a distractor. The data can be used to investigate the neural mechanisms related to visual attention and motion perception under emotional distraction.

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## Description of the data and file structure

This section details how th..., I received explicit consent from participants to publish the de-identified data in the public domain. The data is after preprocessing, and the identification information is not contained.