TY - GEN AU - Portillo,Wendy AU - Camacho,Francisco AU - Eguibar,Jose R AU - Paredes,Raúl G TI - Behavioral characterization of non-copulating male rats with high spontaneous yawning frequency rate SN - 1872-7549 PY - 2010///1116 KW - Animals KW - Behavior, Animal KW - drug effects KW - Choice Behavior KW - Copulation KW - Female KW - Male KW - Morphine KW - pharmacology KW - Odorants KW - Rats KW - Rats, Sprague-Dawley KW - Reward KW - Sexual Behavior, Animal KW - Smell KW - Testosterone KW - blood KW - Yawning N1 - Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1016/j.bbr.2010.05.028 ER -