Rat AA-26: behavioral pharmacology science pioneer.

Brady (1991) wrote a short essay about one lab rat. The rat was called AA-26. It worked in the 1950s.

The paper shows AA-26’s cumulative records. These line graphs proved that steady behavior data could guide drug tests.

The essay says AA-26’s charts made history. They linked pure behavior science with pharmacology for the first time.

FARMELong (1963) soon used the same rat setup. Higher drug doses broke long response chains, showing the method worked.

Hughes et al. (2022) still run rats today. They speed up concurrent-chains tests to see how drugs change impulsive choice.

Podlesnik et al. (2023) counted 200 basic rat studies. All of them rest on the single-subject graph style AA-26 started.

You can thank Rat AA-26 every time you graph one client’s data across sessions. The same picture that once sold pharmacologists on behavior analysis now helps you spot medication side effects or judge if an intervention really works. Keep the cumulative record alive: plot responding minute-by-minute when you start a new med program or taper. One clear chart still convinces teams faster than pages of numbers.