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+# Schaefer2018-12m Data Directory
+
+This directory contains structural connectome data using the Schaefer 2018 atlas with 400 parcels (12 months).
+
+## Expected File Format
+
+This directory should contain TSV (tab-separated values) files in the format:
+- `sub-{ID}_Schaefer2018-12m.tsv`
+
+Each file should be a 400x400 matrix representing structural connectivity between brain regions for individual subjects.
+
+## Usage
+
+This data directory is used by the following scripts:
+1. `1) Merge_All_Shaeffler.py` - Merges all subject data
+2. `2) Indivudual visualization of binarized shaeffler.py` - Visualizes individual patient connectomes
+3. `3) Create Group_Sum_Binarized_Schaefer400.py` - Creates group-level summaries
+4. `5) Check_ROI_Regions.py` - Checks ROI region mappings
+
+## Data Source
+
+Place your Schaefer atlas connectivity matrices here before running the analysis scripts.