THE OPPORTUNITY FOR AGGRESSION AS AN OPERANT REINFORCER DURING AVERSIVE STIMULATION.

CHARNEY et al. (1965) worked with rats in a small chamber. The rats wore tiny shockers on their feet. Every few minutes they got a short shock no matter what they did.

The only way out was a chain hanging from the ceiling. When the rat pulled the chain, a small rubber doll popped into the cage. The rat could bite or push the doll. The shocks kept coming, but now the rat had something to fight.

Chain pulls shot up when the doll appeared. Pulls dropped when the doll was taken away. The pattern repeated every time the researchers switched the contingency.

The chance to attack the doll worked like candy. It reinforced a brand-new response even while pain continued.

DARDANO et al. (1964) used the same shock set-up one year earlier. They punished lever presses with extra shocks and saw the rats flee to a second lever. Both studies show aversive events can push behavior around, but H et al. flip the script: here the shock helps a new reinforcer emerge.

Vukelich et al. (1971) later showed that punishment suppression grows when animals first taste punishment-free periods. Their rats shut down when cues predicted more shocks. H et al. show the opposite: add an aggression cue and responding rises, not falls.

Wilkie et al. (1981) found that a simple tone can become a safety signal and keep food lever pressing alive. H et al. extend this idea: an object, not a tone, becomes valuable because it gives the rat something to do with its fear.

You now have lab proof that aggression itself can reinforce other behavior. When clients hit, kick, or throw objects during stress, the act may be self-rewarding. Instead of only blocking, give a safe target: a pillow, a punching bag, or a ripping box. Measure if the replacement response grows like the chain pull did. If it does, you have turned a problem into a functional reinforcer under your control.