Multimodal Non-Invasive Physiological Signal Dataset

<p dir="ltr"># Multimodal Non-Invasive Physiological Signal Dataset</p><p dir="ltr"><br></p><p dir="ltr">This dataset contains non-invasive physiological signals (ECG, EEG, and PPG) collected from 32 participants across three distinct cognitive states: rest, stress induced by calculation tasks, and stress induced by identification tasks.</p><p dir="ltr"><br></p><p dir="ltr">## Directory Structure</p><p dir="ltr"><br></p><p dir="ltr">```text</p><p dir="ltr">├── brain_performance/</p><p dir="ltr">│ ├── identification_performance.csv</p><p>│ </p><p dir="ltr">└── raw_data/</p><p dir="ltr"> ├── s1/</p><p dir="ltr"> │ ├── s1 all.csv</p><p dir="ltr"> │ ├── s1 all stress.csv</p><p dir="ltr"> │ └── s1 all flowers.csv</p><p dir="ltr"> ├── s2/</p><p dir="ltr"> │ ├── s2 all.csv</p><p dir="ltr"> │ ├── s2 all stress.csv</p><p dir="ltr"> │ └── s2 all flowers.csv</p><p dir="ltr"> └── ...

(up to s32)</p><p>```</p><p dir="ltr"><br></p><p dir="ltr">## Dataset Description</p><p dir="ltr"><br></p><p dir="ltr">### 1. Brain Performance (`/brain_performance`)</p><p dir="ltr">This folder contains behavioral metrics and task performance data. </p><p dir="ltr">* **`identification_performance.csv`**: Tracks participant performance during the identification stress task. It records the total number of samples presented to each participant, along with the count of correct and incorrect answers.</p><p dir="ltr"><br></p><p dir="ltr">### 2.