TY - RPRT TI - Menstrual cycle selectively elevates anticipatory effort cost without altering reward sensitivity in human motivation AU - Schwarz, N. AU - Harlev, D. AU - Wolpe, N. PY - 2026 DO - 10.64898/2026.06.05.730335 UR - https://www.biorxiv.org/content/10.64898/2026.06.05.730335v1 ID - 10.64898/2026.06.05.730335 ER -