---
title: EEG Mental Arithmetic Task Visualizer
emoji: 💻
colorFrom: green
colorTo: purple
sdk: docker
app_port: 8501
tags:
- streamlit
pinned: false
short_description: EEG Visualizer & Data Exploration Space
---

# 🧠 EEG Mental Arithmetic Explorer

Interactive visualization tool for exploring the EEG During Mental Arithmetic Tasks dataset.

## Repository Structure

```
space/
├── scr/ 
├────── app.py           # Main Streamlit application
├── requirements.txt     # Python dependencies
├── README.md            # This file
└── edf_files.zip        # Compressed EDF files (auto-extracted on launch)
```

The EDF files are automatically extracted when the Space starts.

## Features

### 📈 Signal Viewer
- Visualize EEG signals from 23 channels
- Stacked or overlay plot options
- Adjustable time windows
- Multi-channel selection

### 🌈 Spectral Analysis
- Power Spectral Density (PSD) visualization
- Frequency band analysis (Delta, Theta, Alpha, Beta, Gamma)
- Band power comparison
- Individual channel analysis

### 📊 Statistics
- Channel-wise statistical metrics
- Correlation matrix heatmap
- Comprehensive data overview

### 👤 Subject Selection
- Browse all subjects
- View performance groups (Good/Poor)
- Toggle between resting and task states
- Support for both CSV and EDF formats

## Dataset

This explorer uses the [EEG During Mental Arithmetic Tasks](https://huggingface.co/datasets/BrainSpectralAnalytics/eeg-mental-arithmetic) dataset containing:
- 36 subjects with paired recordings
- 23 EEG channels (International 10/20 system)
- Resting state and mental arithmetic task recordings
- Performance-based classification

## Usage

1. **Select Subject**: Choose from 36 available subjects
2. **Choose Recording**: Resting state or mental arithmetic task
3. **Select Format**: CSV (processed) or EDF (original)
4. **Explore**: Navigate through the different visualization tabs

## Citation

```bibtex
@article{zyma2019eegmat,
  author = {Zyma, Igor and Tukaev, Sergii and Seleznov, Ivan and others},
  title = {Electroencephalograms during Mental Arithmetic Task Performance},
  journal = {Data},
  volume = {4},
  number = {1},
  year = {2019},
  doi = {10.3390/data4010014}
}
```

## Links

- [Dataset on Hugging Face](https://huggingface.co/datasets/BrainSpectralAnalytics/eeg-mental-arithmetic)
- [PhysioNet Page](https://physionet.org/content/eegmat/1.0.0/)
- [Original Paper](https://doi.org/10.3390/data4010014)