What Is the Readiness Potential?

The readiness potential (RP), a slow buildup of electrical potential recorded at the scalp using electroencephalography, has been associated with neural activity involved in movement preparation. It became famous thanks to Benjamin Libet (Brain 1983;106:623-642), who used the time difference between the RP and self-reported time of conscious intention to move to argue that we lack free will. The RP's informativeness about self-generated action and derivatively about free will has prompted continued research on this neural phenomenon. Here, we argue that recent advances in our understanding of the RP, including compu-tational modeling of the phenomenon, call for a reassessment of its relevance for understanding volition and the philosophical problem of free will.

Automated summary

The readiness potential (RP) is a slow buildup of electrical potential associated with movement preparation, which has sparked discussions about free will. Recent advances in understanding the RP suggest that it still holds relevance for understanding volition and the philosophical problem of free will.