| Task | Endpoints |
| Primary Endpoints | |
| Thermal Task (Normal Skin) | PDT |
| Thermal Task (UVB Skin) | PDT |
| Electrical Task (pre-cold pressor) | PTT |
| Pressure Task | PTT |
| Cold Pressor Task | PTT |
| Secondary Endpoints | |
| Electrical Task (pre-cold pressor) | PDT, AUC, and post-task VAS |
| Pressure Task | PDT, AUC, and post-task VAS |
| Cold Pressor Task | PDT, AUC, and post-task VAS |
| Conditioned Pain Modulation Response (change from electrical pre- and post-cold pressor) | PDT, AUC, and post-task VAS |
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