Diverging frequency-modulated 50-kHz vocalization, locomotor activity and conditioned place preference effects in rats given repeated amphetamine treatment. - Taracha, Ewa; Kaniuga, Ewelina; Chrapusta, Stanisław J.; Maciejak, Piotr; Śliwa, Lech; Hamed, Adam; Krząścik, Paweł (Neuropharmacology, 2014)