Adrenalectomy potentiates the morphine- but not cocaine induced place preference in rats (Suzuki 1995a)
- The apparatus consisted of a shuttle box (30 x 60 x 30 cm: w x l x h) made of an acrylic. The box was divided into two equal-sized compartments by means of a sliding partition.
- One compartment was white with a textured floor.
- The other was black with a smooth floor.