A series of experiments conducted in the 1960s used laboratory animals that were given intravenous catheters connected to motorized syringes and controlling equipment so that by pressing a lever would produce a single brief drug injection. Which describes the animal(s) that were used?
A) Rats
B) Monkeys and rats
C) Monkeys
D) Pigeons and mice

Question

Quizplus · Accepted Answer

The experiments conducted in the 1960s on self-administration of drugs involved both monkeys and rats. These studies were pivotal in understanding the mechanisms of drug addiction.

A Series of Experiments Conducted in the 1960s Used Laboratory