Some recurrent issues in the history of behavioral sciences.

Reese (2001) looked back at 100 years of behavioral science. The author tracked how three big ideas—consciousness, introspection, and cognition—keep coming back.

The paper is a map, not an experiment. It shows where we have been so we can see the next loop coming.

The same debates return about every 30 years. Each new wave claims it has solved the mind-body puzzle, then fades.

Intellectual disability care is one example. First we locked people away, then we praised normalization, then we argued about rights again.

Samadi et al. (2012) and Werner (2015) give fresh numbers to the cycle Reese (2001) describes. Both show stigma toward people with intellectual disability is still strong. The pattern repeats, just with new words.

Nelson et al. (1978) is an early brick in the verbal-behavior wall. Reese (2001) puts that study inside a loop that keeps turning: echoic control today, emergent verbal relations tomorrow, then back to echoic again.

JM (2024) is the next spin. The new Active Time Model revives choice theory with a shiny label. Reese (2001) warns us to expect the swing.

When you see a hot new term—like emergent relations or derived stimulus—check the history. Odds are high it showed up decades ago under a different name. Save your team time and hype: open the old journals before you buy the next manual or CEU package.