REINFORCEMENT OF DRINKING BY RUNNING: EFFECT OF FIXED RATIO AND REINFORCEMENT TIME.

Scientists put rats in cages with two things: a drinking spout and a running wheel.

The wheel was locked. Every time the rat licked the spout a set number of times the wheel opened for a short spin.

The team raised the lick requirement (FR 5, 10, 20) and the seconds of wheel time (5 s, 10 s, 20 s) across days.

They counted licks to see if running could work like food or water to make drinking happen more.

Higher lick requirements made the rats drink more, not less. Licks jumped from 200 to 1,200 per session when the ratio grew.

Longer wheel spins cut drinking. Giving 20 s of running dropped licks to half the 5 s level.

The pattern matched classic FR food studies: more work first, then payoff. Running really acted like a reinforcer.

Glover et al. (1976) later showed the same FR pause-and-run shape with food pellets. Both labs prove ratio size controls the break, not the speed, of responding.

Bromley et al. (1998) swapped the reinforcer for cocaine water and still saw consumption follow unit price. The 1964 wheel data started this price idea: cost up, value up.

Solnick et al. (1977) looked at reinforcement time in pigeons. Long grain access pulled more pecks, but here longer wheel time pulled fewer licks. The twist is species and response type, not a rule change.

You now know exercise can reinforce other skills, not just act as a reward itself.

Try letting a child earn 30 s of trampoline after 10 correct table responses. Start with a low ratio and short access, then thin slowly. Watch for the same FR pause-and-burst the rats showed; it tells you the schedule is working. If longer activity access kills the target response, shorten it. This paper gives you the first map for using movement as reinforcement in therapy.