Differential effects of ventral striatal lesions on the conditioned place preference induced by morphine or amphetamine (Olmstead 1996)
- The conditioned place preference apparatus consists of three compartments, made of Acrylic.
- Two of the compartments were identical in size (45 × 45 × 30 cm).
- One had White walls with smooth floor.
- The other had black walls and wire mesh floor.
- The third compartment, an unpainted tunnel (36 x 18 × 20cm), connected the other two compartments.