SPIS-Resting-State-Dataset

Dataset Overview

Dataset Name

SPIS‑Resting‑State‑Dataset

Description

This is a multimodal dataset containing EEG and frontal EOG for resting‑state analysis. It is a subset of the SPIS resting‑state EEG dataset.

Experiment Description

• Background: The data were recorded prior to a continuous 105‑minute attention‑reaction task with fixed sequences and varying ISIs.
• Content: Each recording includes 2.5 minutes of eyes‑open (EO) and 2.5 minutes of eyes‑closed (EC) resting‑state EEG.
• Acquisition: Recorded with 64 Ag/AgCl active electrodes placed according to the international 10‑10 system, sampled at 2,048 Hz.
• Timing: Sessions were conducted in the early afternoon to encourage a drowsy brain state.

File Format

• Type: All files are saved as Matlab version 7.3 *.mat files.
• Processing: Raw data were down‑sampled from 2,048 Hz to 256 Hz.

Electrode Layout

• EEG Electrodes: Channels 1‑64 correspond to monopolar EEG channels (e.g., Fp1, AF7, etc.).
• EOG Electrodes: Channels 65‑67 are three surface EOG electrodes placed at the outer canthi and mid‑brow.
• Trigger Channel: Channel 68 is the trigger channel; value 200 indicates eyes‑open, 220 indicates eyes‑closed.

Acquisition Hardware

Data were recorded with a 64‑channel Biosemi Active‑2 amplifier; raw signals are in microvolts.

Pre‑processing & Denoising

Refer to the original publication or the denoising methods developed for this dataset for recommended preprocessing steps.