TY - RPRT TI - Single-Session HRV Biofeedback Alters Neural Activity but Not Subjective Anxiety AU - Dao, C. AU - Man, I. AU - Healy, K. AU - Estel, K. AU - Nelli, S. M. PY - 2026 DO - 10.64898/2026.11.10.765768 UR - https://www.biorxiv.org/content/10.64898/2026.11.10.765768v1 ID - 10.64898/2026.11.10.765768 ER -